/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/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:40:27,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:40:27,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:40:28,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:40:28,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:40:28,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:40:28,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:40:28,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:40:28,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:40:28,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:40:28,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:40:28,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:40:28,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:40:28,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:40:28,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:40:28,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:40:28,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:40:28,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:40:28,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:40:28,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:40:28,085 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 00:40:28,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:40:28,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:40:28,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:40:28,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:40:28,121 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:40:28,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:40:28,122 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:40:28,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:40:28,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:40:28,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:40:28,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:40:28,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:40:28,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:40:28,124 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:40:28,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:40:28,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:40:28,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:40:28,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:40:28,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:40:28,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:40:28,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:40:28,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:40:28,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:40:28,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:40:28,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:40:28,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:40:28,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:40:28,126 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:40:28,126 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:40:28,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:40:28,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:40:28,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:40:28,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:40:28,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:40:28,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:40:28,448 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:40:28,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2021-03-26 00:40:28,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bd665210/d7009a4fdde845099ec3a2ef2033b173/FLAG4468c185d [2021-03-26 00:40:29,029 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:40:29,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2021-03-26 00:40:29,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bd665210/d7009a4fdde845099ec3a2ef2033b173/FLAG4468c185d [2021-03-26 00:40:29,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bd665210/d7009a4fdde845099ec3a2ef2033b173 [2021-03-26 00:40:29,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:40:29,355 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:40:29,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:40:29,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:40:29,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:40:29,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5ce455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29, skipping insertion in model container [2021-03-26 00:40:29,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:40:29,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:40:29,505 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/safe015_pso.oepc.i[950,963] [2021-03-26 00:40:29,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:40:29,681 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:40:29,693 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/safe015_pso.oepc.i[950,963] [2021-03-26 00:40:29,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:40:29,783 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:40:29,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29 WrapperNode [2021-03-26 00:40:29,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:40:29,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:40:29,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:40:29,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:40:29,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:40:29,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:40:29,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:40:29,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:40:29,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (1/1) ... [2021-03-26 00:40:29,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:40:29,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:40:29,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:40:29,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:40:29,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (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 00:40:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:40:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:40:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:40:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:40:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:40:29,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:40:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:40:29,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:40:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:40:29,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:40:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:40:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:40:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:40:29,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:40:29,923 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 00:40:30,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:40:30,264 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:40:30,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:40:30 BoogieIcfgContainer [2021-03-26 00:40:30,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:40:30,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:40:30,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:40:30,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:40:30,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:40:29" (1/3) ... [2021-03-26 00:40:30,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2b71a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:40:30, skipping insertion in model container [2021-03-26 00:40:30,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:29" (2/3) ... [2021-03-26 00:40:30,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2b71a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:40:30, skipping insertion in model container [2021-03-26 00:40:30,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:40:30" (3/3) ... [2021-03-26 00:40:30,274 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2021-03-26 00:40:30,279 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:40:30,284 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:40:30,285 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:40:30,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,320 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,322 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,322 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,326 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,326 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,326 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,326 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,337 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:30,346 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:40:30,362 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:40:30,390 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:40:30,390 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:40:30,390 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:40:30,390 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:40:30,390 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:40:30,390 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:40:30,390 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:40:30,390 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:40:30,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:40:30,446 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-26 00:40:30,446 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:30,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:40:30,450 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:40:30,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-26 00:40:30,463 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:30,474 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:40:30,477 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:40:30,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-26 00:40:30,513 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-26 00:40:30,513 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:30,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:40:30,515 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:40:31,954 INFO L154 LiptonReduction]: Checked pairs total: 1194 [2021-03-26 00:40:31,955 INFO L156 LiptonReduction]: Total number of compositions: 40 [2021-03-26 00:40:31,957 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1495 [2021-03-26 00:40:31,966 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 00:40:31,966 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:31,966 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:31,967 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:31,967 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:31,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:31,971 INFO L82 PathProgramCache]: Analyzing trace with hash 509991216, now seen corresponding path program 1 times [2021-03-26 00:40:31,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:31,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350942775] [2021-03-26 00:40:31,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:32,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:32,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:32,206 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:32,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:32,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:32,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:32,231 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 00:40:32,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350942775] [2021-03-26 00:40:32,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:32,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:32,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540831769] [2021-03-26 00:40:32,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:40:32,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:32,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:40:32,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:40:32,260 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 114 [2021-03-26 00:40:32,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 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 00:40:32,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:32,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 114 [2021-03-26 00:40:32,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:32,356 INFO L129 PetriNetUnfolder]: 213/439 cut-off events. [2021-03-26 00:40:32,356 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:32,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 439 events. 213/439 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2310 event pairs, 49 based on Foata normal form. 39/465 useless extension candidates. Maximal degree in co-relation 802. Up to 137 conditions per place. [2021-03-26 00:40:32,361 INFO L132 encePairwiseOnDemand]: 105/114 looper letters, 10 selfloop transitions, 7 changer transitions 13/41 dead transitions. [2021-03-26 00:40:32,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 151 flow [2021-03-26 00:40:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:32,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 442 transitions. [2021-03-26 00:40:32,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.775438596491228 [2021-03-26 00:40:32,374 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 442 transitions. [2021-03-26 00:40:32,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 442 transitions. [2021-03-26 00:40:32,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:32,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 442 transitions. [2021-03-26 00:40:32,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 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 00:40:32,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:32,388 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:32,389 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 5 states and 442 transitions. [2021-03-26 00:40:32,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 151 flow [2021-03-26 00:40:32,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:40:32,393 INFO L241 Difference]: Finished difference. Result has 36 places, 27 transitions, 118 flow [2021-03-26 00:40:32,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2021-03-26 00:40:32,396 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-26 00:40:32,396 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:32,396 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 27 transitions, 118 flow [2021-03-26 00:40:32,396 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 27 transitions, 118 flow [2021-03-26 00:40:32,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 118 flow [2021-03-26 00:40:32,417 INFO L129 PetriNetUnfolder]: 118/271 cut-off events. [2021-03-26 00:40:32,417 INFO L130 PetriNetUnfolder]: For 149/171 co-relation queries the response was YES. [2021-03-26 00:40:32,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 271 events. 118/271 cut-off events. For 149/171 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1332 event pairs, 33 based on Foata normal form. 8/267 useless extension candidates. Maximal degree in co-relation 681. Up to 104 conditions per place. [2021-03-26 00:40:32,420 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 00:40:32,814 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:40:33,008 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:40:33,110 INFO L154 LiptonReduction]: Checked pairs total: 39 [2021-03-26 00:40:33,110 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:40:33,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 714 [2021-03-26 00:40:33,113 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 112 flow [2021-03-26 00:40:33,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 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 00:40:33,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:33,114 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:33,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:40:33,114 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:33,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:33,121 INFO L82 PathProgramCache]: Analyzing trace with hash 17191968, now seen corresponding path program 1 times [2021-03-26 00:40:33,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:33,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490393583] [2021-03-26 00:40:33,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:33,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:33,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,228 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:33,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:33,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,239 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 00:40:33,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490393583] [2021-03-26 00:40:33,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:33,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:33,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176075122] [2021-03-26 00:40:33,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:33,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:33,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:33,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:33,243 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 00:40:33,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:40:33,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:33,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 00:40:33,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:33,310 INFO L129 PetriNetUnfolder]: 135/318 cut-off events. [2021-03-26 00:40:33,310 INFO L130 PetriNetUnfolder]: For 315/416 co-relation queries the response was YES. [2021-03-26 00:40:33,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1079 conditions, 318 events. 135/318 cut-off events. For 315/416 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1649 event pairs, 7 based on Foata normal form. 37/348 useless extension candidates. Maximal degree in co-relation 1066. Up to 125 conditions per place. [2021-03-26 00:40:33,314 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 16 selfloop transitions, 8 changer transitions 21/54 dead transitions. [2021-03-26 00:40:33,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 54 transitions, 380 flow [2021-03-26 00:40:33,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 612 transitions. [2021-03-26 00:40:33,320 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7472527472527473 [2021-03-26 00:40:33,320 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 612 transitions. [2021-03-26 00:40:33,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 612 transitions. [2021-03-26 00:40:33,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:33,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 612 transitions. [2021-03-26 00:40:33,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.42857142857143) internal successors, (612), 7 states have internal predecessors, (612), 0 states have call successors, (0), 0 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 00:40:33,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:33,326 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:33,326 INFO L185 Difference]: Start difference. First operand has 31 places, 24 transitions, 112 flow. Second operand 7 states and 612 transitions. [2021-03-26 00:40:33,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 54 transitions, 380 flow [2021-03-26 00:40:33,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 54 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:40:33,331 INFO L241 Difference]: Finished difference. Result has 41 places, 28 transitions, 170 flow [2021-03-26 00:40:33,331 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=170, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2021-03-26 00:40:33,332 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 10 predicate places. [2021-03-26 00:40:33,332 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:33,332 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 28 transitions, 170 flow [2021-03-26 00:40:33,333 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 28 transitions, 170 flow [2021-03-26 00:40:33,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 28 transitions, 170 flow [2021-03-26 00:40:33,348 INFO L129 PetriNetUnfolder]: 80/207 cut-off events. [2021-03-26 00:40:33,348 INFO L130 PetriNetUnfolder]: For 332/389 co-relation queries the response was YES. [2021-03-26 00:40:33,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 207 events. 80/207 cut-off events. For 332/389 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1006 event pairs, 10 based on Foata normal form. 20/222 useless extension candidates. Maximal degree in co-relation 640. Up to 87 conditions per place. [2021-03-26 00:40:33,351 INFO L142 LiptonReduction]: Number of co-enabled transitions 182 [2021-03-26 00:40:33,356 INFO L154 LiptonReduction]: Checked pairs total: 15 [2021-03-26 00:40:33,356 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:33,356 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 00:40:33,357 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 170 flow [2021-03-26 00:40:33,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:40:33,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:33,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:33,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:40:33,358 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:33,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:33,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1298501072, now seen corresponding path program 1 times [2021-03-26 00:40:33,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:33,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264280922] [2021-03-26 00:40:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:33,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:33,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,432 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:33,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:33,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,449 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 00:40:33,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264280922] [2021-03-26 00:40:33,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:33,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:33,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708692947] [2021-03-26 00:40:33,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:33,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:33,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:33,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:33,457 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 00:40:33,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:40:33,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:33,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 00:40:33,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:33,533 INFO L129 PetriNetUnfolder]: 82/224 cut-off events. [2021-03-26 00:40:33,533 INFO L130 PetriNetUnfolder]: For 740/901 co-relation queries the response was YES. [2021-03-26 00:40:33,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 224 events. 82/224 cut-off events. For 740/901 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1124 event pairs, 9 based on Foata normal form. 31/250 useless extension candidates. Maximal degree in co-relation 874. Up to 87 conditions per place. [2021-03-26 00:40:33,535 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 15 selfloop transitions, 13 changer transitions 19/56 dead transitions. [2021-03-26 00:40:33,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 464 flow [2021-03-26 00:40:33,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:33,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 610 transitions. [2021-03-26 00:40:33,537 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7448107448107448 [2021-03-26 00:40:33,537 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 610 transitions. [2021-03-26 00:40:33,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 610 transitions. [2021-03-26 00:40:33,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:33,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 610 transitions. [2021-03-26 00:40:33,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 0 states have call successors, (0), 0 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 00:40:33,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:33,541 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:33,541 INFO L185 Difference]: Start difference. First operand has 38 places, 28 transitions, 170 flow. Second operand 7 states and 610 transitions. [2021-03-26 00:40:33,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 464 flow [2021-03-26 00:40:33,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 56 transitions, 449 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-03-26 00:40:33,548 INFO L241 Difference]: Finished difference. Result has 48 places, 32 transitions, 269 flow [2021-03-26 00:40:33,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=269, PETRI_PLACES=48, PETRI_TRANSITIONS=32} [2021-03-26 00:40:33,548 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 17 predicate places. [2021-03-26 00:40:33,548 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:33,548 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 32 transitions, 269 flow [2021-03-26 00:40:33,549 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 32 transitions, 269 flow [2021-03-26 00:40:33,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 32 transitions, 269 flow [2021-03-26 00:40:33,569 INFO L129 PetriNetUnfolder]: 55/153 cut-off events. [2021-03-26 00:40:33,569 INFO L130 PetriNetUnfolder]: For 488/538 co-relation queries the response was YES. [2021-03-26 00:40:33,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 153 events. 55/153 cut-off events. For 488/538 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 726 event pairs, 4 based on Foata normal form. 9/159 useless extension candidates. Maximal degree in co-relation 615. Up to 60 conditions per place. [2021-03-26 00:40:33,571 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 00:40:33,585 INFO L154 LiptonReduction]: Checked pairs total: 55 [2021-03-26 00:40:33,585 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:33,585 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 00:40:33,586 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 269 flow [2021-03-26 00:40:33,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:40:33,587 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:33,587 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:33,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:40:33,587 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:33,588 INFO L82 PathProgramCache]: Analyzing trace with hash -314122702, now seen corresponding path program 1 times [2021-03-26 00:40:33,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:33,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18284661] [2021-03-26 00:40:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:33,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,652 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 00:40:33,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18284661] [2021-03-26 00:40:33,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:33,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:40:33,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984524809] [2021-03-26 00:40:33,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:40:33,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:33,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:40:33,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:40:33,655 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2021-03-26 00:40:33,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 269 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 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 00:40:33,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:33,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2021-03-26 00:40:33,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:33,686 INFO L129 PetriNetUnfolder]: 56/163 cut-off events. [2021-03-26 00:40:33,687 INFO L130 PetriNetUnfolder]: For 717/816 co-relation queries the response was YES. [2021-03-26 00:40:33,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 163 events. 56/163 cut-off events. For 717/816 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 730 event pairs, 5 based on Foata normal form. 16/174 useless extension candidates. Maximal degree in co-relation 723. Up to 59 conditions per place. [2021-03-26 00:40:33,688 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 10 selfloop transitions, 8 changer transitions 6/45 dead transitions. [2021-03-26 00:40:33,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 45 transitions, 445 flow [2021-03-26 00:40:33,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:33,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:33,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2021-03-26 00:40:33,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8358974358974359 [2021-03-26 00:40:33,690 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 489 transitions. [2021-03-26 00:40:33,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 489 transitions. [2021-03-26 00:40:33,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:33,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 489 transitions. [2021-03-26 00:40:33,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 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 00:40:33,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 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 00:40:33,694 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 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 00:40:33,694 INFO L185 Difference]: Start difference. First operand has 45 places, 32 transitions, 269 flow. Second operand 5 states and 489 transitions. [2021-03-26 00:40:33,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 45 transitions, 445 flow [2021-03-26 00:40:33,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 423 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-26 00:40:33,699 INFO L241 Difference]: Finished difference. Result has 48 places, 39 transitions, 367 flow [2021-03-26 00:40:33,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=367, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2021-03-26 00:40:33,699 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 17 predicate places. [2021-03-26 00:40:33,699 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:33,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 39 transitions, 367 flow [2021-03-26 00:40:33,700 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 39 transitions, 367 flow [2021-03-26 00:40:33,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 39 transitions, 367 flow [2021-03-26 00:40:33,711 INFO L129 PetriNetUnfolder]: 51/142 cut-off events. [2021-03-26 00:40:33,711 INFO L130 PetriNetUnfolder]: For 490/557 co-relation queries the response was YES. [2021-03-26 00:40:33,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 142 events. 51/142 cut-off events. For 490/557 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 615 event pairs, 3 based on Foata normal form. 3/141 useless extension candidates. Maximal degree in co-relation 618. Up to 52 conditions per place. [2021-03-26 00:40:33,714 INFO L142 LiptonReduction]: Number of co-enabled transitions 214 [2021-03-26 00:40:33,730 INFO L154 LiptonReduction]: Checked pairs total: 131 [2021-03-26 00:40:33,730 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:33,730 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 00:40:33,731 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 367 flow [2021-03-26 00:40:33,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 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 00:40:33,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:33,732 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:33,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:40:33,732 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:33,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:33,732 INFO L82 PathProgramCache]: Analyzing trace with hash 175242518, now seen corresponding path program 1 times [2021-03-26 00:40:33,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:33,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848201554] [2021-03-26 00:40:33,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:33,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,797 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:33,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:33,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,811 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 00:40:33,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848201554] [2021-03-26 00:40:33,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:33,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:33,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613145752] [2021-03-26 00:40:33,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:33,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:33,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:33,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:33,815 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 00:40:33,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 367 flow. Second operand has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 0 states have call successors, (0), 0 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 00:40:33,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:33,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 00:40:33,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:33,872 INFO L129 PetriNetUnfolder]: 51/149 cut-off events. [2021-03-26 00:40:33,872 INFO L130 PetriNetUnfolder]: For 700/912 co-relation queries the response was YES. [2021-03-26 00:40:33,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 149 events. 51/149 cut-off events. For 700/912 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 613 event pairs, 0 based on Foata normal form. 9/153 useless extension candidates. Maximal degree in co-relation 761. Up to 58 conditions per place. [2021-03-26 00:40:33,874 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 21 selfloop transitions, 20 changer transitions 8/58 dead transitions. [2021-03-26 00:40:33,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 58 transitions, 663 flow [2021-03-26 00:40:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:33,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:33,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 603 transitions. [2021-03-26 00:40:33,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7362637362637363 [2021-03-26 00:40:33,876 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 603 transitions. [2021-03-26 00:40:33,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 603 transitions. [2021-03-26 00:40:33,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:33,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 603 transitions. [2021-03-26 00:40:33,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.14285714285714) internal successors, (603), 7 states have internal predecessors, (603), 0 states have call successors, (0), 0 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 00:40:33,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:33,879 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:33,879 INFO L185 Difference]: Start difference. First operand has 46 places, 39 transitions, 367 flow. Second operand 7 states and 603 transitions. [2021-03-26 00:40:33,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 58 transitions, 663 flow [2021-03-26 00:40:33,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 633 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-26 00:40:33,884 INFO L241 Difference]: Finished difference. Result has 54 places, 45 transitions, 512 flow [2021-03-26 00:40:33,884 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=512, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2021-03-26 00:40:33,884 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 23 predicate places. [2021-03-26 00:40:33,884 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:33,885 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 45 transitions, 512 flow [2021-03-26 00:40:33,885 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 45 transitions, 512 flow [2021-03-26 00:40:33,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 45 transitions, 512 flow [2021-03-26 00:40:33,898 INFO L129 PetriNetUnfolder]: 46/130 cut-off events. [2021-03-26 00:40:33,898 INFO L130 PetriNetUnfolder]: For 750/834 co-relation queries the response was YES. [2021-03-26 00:40:33,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 130 events. 46/130 cut-off events. For 750/834 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 507 event pairs, 3 based on Foata normal form. 1/126 useless extension candidates. Maximal degree in co-relation 666. Up to 50 conditions per place. [2021-03-26 00:40:33,900 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-26 00:40:33,906 INFO L154 LiptonReduction]: Checked pairs total: 197 [2021-03-26 00:40:33,906 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:33,906 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 00:40:33,908 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 512 flow [2021-03-26 00:40:33,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 0 states have call successors, (0), 0 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 00:40:33,908 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:33,908 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:33,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:40:33,908 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:33,909 INFO L82 PathProgramCache]: Analyzing trace with hash 694133550, now seen corresponding path program 1 times [2021-03-26 00:40:33,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:33,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707521313] [2021-03-26 00:40:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:33,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:33,960 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:40:33,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:40:33,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:33,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:33,966 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 00:40:33,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707521313] [2021-03-26 00:40:33,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:33,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:33,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611923989] [2021-03-26 00:40:33,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:40:33,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:33,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:40:33,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:40:33,968 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-03-26 00:40:33,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 512 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 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 00:40:33,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:33,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-03-26 00:40:33,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:34,032 INFO L129 PetriNetUnfolder]: 137/333 cut-off events. [2021-03-26 00:40:34,032 INFO L130 PetriNetUnfolder]: For 1659/1800 co-relation queries the response was YES. [2021-03-26 00:40:34,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 333 events. 137/333 cut-off events. For 1659/1800 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1901 event pairs, 34 based on Foata normal form. 37/352 useless extension candidates. Maximal degree in co-relation 1288. Up to 158 conditions per place. [2021-03-26 00:40:34,035 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 8 selfloop transitions, 8 changer transitions 0/55 dead transitions. [2021-03-26 00:40:34,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 55 transitions, 564 flow [2021-03-26 00:40:34,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:34,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 448 transitions. [2021-03-26 00:40:34,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7658119658119659 [2021-03-26 00:40:34,037 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 448 transitions. [2021-03-26 00:40:34,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 448 transitions. [2021-03-26 00:40:34,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:34,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 448 transitions. [2021-03-26 00:40:34,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 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 00:40:34,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 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 00:40:34,041 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 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 00:40:34,041 INFO L185 Difference]: Start difference. First operand has 51 places, 45 transitions, 512 flow. Second operand 5 states and 448 transitions. [2021-03-26 00:40:34,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 55 transitions, 564 flow [2021-03-26 00:40:34,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 55 transitions, 553 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:40:34,047 INFO L241 Difference]: Finished difference. Result has 55 places, 52 transitions, 561 flow [2021-03-26 00:40:34,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=561, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2021-03-26 00:40:34,047 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 24 predicate places. [2021-03-26 00:40:34,047 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:34,047 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 52 transitions, 561 flow [2021-03-26 00:40:34,048 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 52 transitions, 561 flow [2021-03-26 00:40:34,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 52 transitions, 561 flow [2021-03-26 00:40:34,072 INFO L129 PetriNetUnfolder]: 132/329 cut-off events. [2021-03-26 00:40:34,073 INFO L130 PetriNetUnfolder]: For 1326/1443 co-relation queries the response was YES. [2021-03-26 00:40:34,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1399 conditions, 329 events. 132/329 cut-off events. For 1326/1443 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1934 event pairs, 32 based on Foata normal form. 21/340 useless extension candidates. Maximal degree in co-relation 1368. Up to 173 conditions per place. [2021-03-26 00:40:34,077 INFO L142 LiptonReduction]: Number of co-enabled transitions 378 [2021-03-26 00:40:34,088 INFO L154 LiptonReduction]: Checked pairs total: 33 [2021-03-26 00:40:34,088 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:40:34,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-26 00:40:34,090 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 555 flow [2021-03-26 00:40:34,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 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 00:40:34,090 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:34,090 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:34,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:40:34,090 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:34,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:34,091 INFO L82 PathProgramCache]: Analyzing trace with hash 43271473, now seen corresponding path program 1 times [2021-03-26 00:40:34,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:34,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136319995] [2021-03-26 00:40:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:34,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,132 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:40:34,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:40:34,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:34,140 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 00:40:34,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136319995] [2021-03-26 00:40:34,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:34,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:34,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795089987] [2021-03-26 00:40:34,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:34,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:34,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:34,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:34,145 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-03-26 00:40:34,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 555 flow. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 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 00:40:34,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:34,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-03-26 00:40:34,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:34,199 INFO L129 PetriNetUnfolder]: 84/229 cut-off events. [2021-03-26 00:40:34,199 INFO L130 PetriNetUnfolder]: For 1258/1458 co-relation queries the response was YES. [2021-03-26 00:40:34,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 229 events. 84/229 cut-off events. For 1258/1458 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1166 event pairs, 4 based on Foata normal form. 56/277 useless extension candidates. Maximal degree in co-relation 1093. Up to 129 conditions per place. [2021-03-26 00:40:34,201 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 5 selfloop transitions, 11 changer transitions 3/58 dead transitions. [2021-03-26 00:40:34,201 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 58 transitions, 633 flow [2021-03-26 00:40:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:40:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:40:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 537 transitions. [2021-03-26 00:40:34,203 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7649572649572649 [2021-03-26 00:40:34,203 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 537 transitions. [2021-03-26 00:40:34,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 537 transitions. [2021-03-26 00:40:34,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:34,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 537 transitions. [2021-03-26 00:40:34,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 0 states have call successors, (0), 0 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 00:40:34,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 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 00:40:34,206 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 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 00:40:34,206 INFO L185 Difference]: Start difference. First operand has 55 places, 51 transitions, 555 flow. Second operand 6 states and 537 transitions. [2021-03-26 00:40:34,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 58 transitions, 633 flow [2021-03-26 00:40:34,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 58 transitions, 623 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:40:34,213 INFO L241 Difference]: Finished difference. Result has 58 places, 55 transitions, 615 flow [2021-03-26 00:40:34,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=615, PETRI_PLACES=58, PETRI_TRANSITIONS=55} [2021-03-26 00:40:34,214 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 27 predicate places. [2021-03-26 00:40:34,214 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:34,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 55 transitions, 615 flow [2021-03-26 00:40:34,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 55 transitions, 615 flow [2021-03-26 00:40:34,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 55 transitions, 615 flow [2021-03-26 00:40:34,237 INFO L129 PetriNetUnfolder]: 80/230 cut-off events. [2021-03-26 00:40:34,237 INFO L130 PetriNetUnfolder]: For 961/1036 co-relation queries the response was YES. [2021-03-26 00:40:34,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 230 events. 80/230 cut-off events. For 961/1036 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1252 event pairs, 4 based on Foata normal form. 2/227 useless extension candidates. Maximal degree in co-relation 1137. Up to 131 conditions per place. [2021-03-26 00:40:34,240 INFO L142 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-26 00:40:34,252 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-26 00:40:34,252 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:40:34,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-26 00:40:34,253 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 607 flow [2021-03-26 00:40:34,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 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 00:40:34,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:34,253 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:34,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:40:34,254 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:34,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1139411128, now seen corresponding path program 1 times [2021-03-26 00:40:34,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:34,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875045344] [2021-03-26 00:40:34,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:34,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:34,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,303 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 00:40:34,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875045344] [2021-03-26 00:40:34,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:34,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:34,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638859] [2021-03-26 00:40:34,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:40:34,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:34,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:40:34,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:40:34,305 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2021-03-26 00:40:34,305 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 607 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 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 00:40:34,305 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:34,305 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2021-03-26 00:40:34,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:34,339 INFO L129 PetriNetUnfolder]: 82/230 cut-off events. [2021-03-26 00:40:34,340 INFO L130 PetriNetUnfolder]: For 1300/1425 co-relation queries the response was YES. [2021-03-26 00:40:34,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 230 events. 82/230 cut-off events. For 1300/1425 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1113 event pairs, 6 based on Foata normal form. 11/232 useless extension candidates. Maximal degree in co-relation 1207. Up to 120 conditions per place. [2021-03-26 00:40:34,342 INFO L132 encePairwiseOnDemand]: 113/117 looper letters, 8 selfloop transitions, 12 changer transitions 2/54 dead transitions. [2021-03-26 00:40:34,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 54 transitions, 655 flow [2021-03-26 00:40:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:34,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 486 transitions. [2021-03-26 00:40:34,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8307692307692308 [2021-03-26 00:40:34,343 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 486 transitions. [2021-03-26 00:40:34,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 486 transitions. [2021-03-26 00:40:34,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:34,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 486 transitions. [2021-03-26 00:40:34,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 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 00:40:34,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 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 00:40:34,346 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 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 00:40:34,346 INFO L185 Difference]: Start difference. First operand has 58 places, 54 transitions, 607 flow. Second operand 5 states and 486 transitions. [2021-03-26 00:40:34,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 54 transitions, 655 flow [2021-03-26 00:40:34,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 619 flow, removed 16 selfloop flow, removed 4 redundant places. [2021-03-26 00:40:34,353 INFO L241 Difference]: Finished difference. Result has 59 places, 51 transitions, 589 flow [2021-03-26 00:40:34,353 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=589, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2021-03-26 00:40:34,354 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2021-03-26 00:40:34,354 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:34,354 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 51 transitions, 589 flow [2021-03-26 00:40:34,354 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 51 transitions, 589 flow [2021-03-26 00:40:34,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 51 transitions, 589 flow [2021-03-26 00:40:34,372 INFO L129 PetriNetUnfolder]: 81/225 cut-off events. [2021-03-26 00:40:34,372 INFO L130 PetriNetUnfolder]: For 976/1051 co-relation queries the response was YES. [2021-03-26 00:40:34,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 225 events. 81/225 cut-off events. For 976/1051 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1147 event pairs, 6 based on Foata normal form. 2/223 useless extension candidates. Maximal degree in co-relation 1026. Up to 83 conditions per place. [2021-03-26 00:40:34,375 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-26 00:40:34,379 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:40:34,379 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:34,379 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 00:40:34,380 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 589 flow [2021-03-26 00:40:34,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 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 00:40:34,380 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:34,380 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:34,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:40:34,381 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:34,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:34,381 INFO L82 PathProgramCache]: Analyzing trace with hash 237922969, now seen corresponding path program 1 times [2021-03-26 00:40:34,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:34,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312796577] [2021-03-26 00:40:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:34,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,432 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:40:34,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:40:34,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:34,439 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 00:40:34,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312796577] [2021-03-26 00:40:34,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:34,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:40:34,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79243549] [2021-03-26 00:40:34,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:40:34,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:34,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:40:34,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:40:34,441 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-03-26 00:40:34,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 589 flow. Second operand has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:34,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:34,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-03-26 00:40:34,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:34,494 INFO L129 PetriNetUnfolder]: 71/196 cut-off events. [2021-03-26 00:40:34,494 INFO L130 PetriNetUnfolder]: For 830/997 co-relation queries the response was YES. [2021-03-26 00:40:34,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 196 events. 71/196 cut-off events. For 830/997 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 921 event pairs, 0 based on Foata normal form. 47/234 useless extension candidates. Maximal degree in co-relation 994. Up to 71 conditions per place. [2021-03-26 00:40:34,495 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 2 selfloop transitions, 11 changer transitions 23/55 dead transitions. [2021-03-26 00:40:34,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 55 transitions, 651 flow [2021-03-26 00:40:34,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:34,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:34,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 620 transitions. [2021-03-26 00:40:34,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.757020757020757 [2021-03-26 00:40:34,498 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 620 transitions. [2021-03-26 00:40:34,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 620 transitions. [2021-03-26 00:40:34,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:34,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 620 transitions. [2021-03-26 00:40:34,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.57142857142857) internal successors, (620), 7 states have internal predecessors, (620), 0 states have call successors, (0), 0 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 00:40:34,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:34,501 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:34,501 INFO L185 Difference]: Start difference. First operand has 57 places, 51 transitions, 589 flow. Second operand 7 states and 620 transitions. [2021-03-26 00:40:34,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 55 transitions, 651 flow [2021-03-26 00:40:34,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 609 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-03-26 00:40:34,506 INFO L241 Difference]: Finished difference. Result has 62 places, 32 transitions, 325 flow [2021-03-26 00:40:34,507 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=325, PETRI_PLACES=62, PETRI_TRANSITIONS=32} [2021-03-26 00:40:34,507 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 31 predicate places. [2021-03-26 00:40:34,507 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:34,507 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 32 transitions, 325 flow [2021-03-26 00:40:34,507 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 32 transitions, 325 flow [2021-03-26 00:40:34,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 32 transitions, 325 flow [2021-03-26 00:40:34,512 INFO L129 PetriNetUnfolder]: 12/57 cut-off events. [2021-03-26 00:40:34,512 INFO L130 PetriNetUnfolder]: For 178/180 co-relation queries the response was YES. [2021-03-26 00:40:34,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 57 events. 12/57 cut-off events. For 178/180 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 149 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 278. Up to 20 conditions per place. [2021-03-26 00:40:34,513 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-26 00:40:34,684 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-26 00:40:34,684 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 00:40:34,684 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 177 [2021-03-26 00:40:34,685 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 29 transitions, 337 flow [2021-03-26 00:40:34,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:34,686 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:34,686 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 00:40:34,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:40:34,686 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:34,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:34,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1197087744, now seen corresponding path program 1 times [2021-03-26 00:40:34,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:34,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484409386] [2021-03-26 00:40:34,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:34,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:34,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,730 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 00:40:34,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484409386] [2021-03-26 00:40:34,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:34,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:34,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262316586] [2021-03-26 00:40:34,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:34,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:34,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:34,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:34,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 121 [2021-03-26 00:40:34,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 29 transitions, 337 flow. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 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 00:40:34,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:34,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 121 [2021-03-26 00:40:34,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:34,759 INFO L129 PetriNetUnfolder]: 16/64 cut-off events. [2021-03-26 00:40:34,760 INFO L130 PetriNetUnfolder]: For 572/588 co-relation queries the response was YES. [2021-03-26 00:40:34,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 64 events. 16/64 cut-off events. For 572/588 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 198 event pairs, 0 based on Foata normal form. 8/71 useless extension candidates. Maximal degree in co-relation 405. Up to 25 conditions per place. [2021-03-26 00:40:34,760 INFO L132 encePairwiseOnDemand]: 115/121 looper letters, 6 selfloop transitions, 5 changer transitions 6/33 dead transitions. [2021-03-26 00:40:34,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 33 transitions, 441 flow [2021-03-26 00:40:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2021-03-26 00:40:34,762 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7520661157024794 [2021-03-26 00:40:34,762 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 455 transitions. [2021-03-26 00:40:34,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 455 transitions. [2021-03-26 00:40:34,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:34,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 455 transitions. [2021-03-26 00:40:34,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:34,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 0 states have call successors, (0), 0 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 00:40:34,765 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 0 states have call successors, (0), 0 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 00:40:34,765 INFO L185 Difference]: Start difference. First operand has 57 places, 29 transitions, 337 flow. Second operand 5 states and 455 transitions. [2021-03-26 00:40:34,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 33 transitions, 441 flow [2021-03-26 00:40:34,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 33 transitions, 301 flow, removed 17 selfloop flow, removed 16 redundant places. [2021-03-26 00:40:34,768 INFO L241 Difference]: Finished difference. Result has 46 places, 27 transitions, 215 flow [2021-03-26 00:40:34,769 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=41, 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=5, PETRI_FLOW=215, PETRI_PLACES=46, PETRI_TRANSITIONS=27} [2021-03-26 00:40:34,769 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 15 predicate places. [2021-03-26 00:40:34,769 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:34,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 27 transitions, 215 flow [2021-03-26 00:40:34,769 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 27 transitions, 215 flow [2021-03-26 00:40:34,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 27 transitions, 215 flow [2021-03-26 00:40:34,773 INFO L129 PetriNetUnfolder]: 11/47 cut-off events. [2021-03-26 00:40:34,773 INFO L130 PetriNetUnfolder]: For 150/152 co-relation queries the response was YES. [2021-03-26 00:40:34,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 47 events. 11/47 cut-off events. For 150/152 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 115 event pairs, 0 based on Foata normal form. 2/49 useless extension candidates. Maximal degree in co-relation 191. Up to 14 conditions per place. [2021-03-26 00:40:34,774 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-26 00:40:34,813 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 00:40:34,813 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:40:34,813 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-26 00:40:34,813 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 26 transitions, 214 flow [2021-03-26 00:40:34,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 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 00:40:34,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:34,814 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:34,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:40:34,814 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:34,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:34,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1324508772, now seen corresponding path program 1 times [2021-03-26 00:40:34,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:34,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721654143] [2021-03-26 00:40:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:34,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:34,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:40:34,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721654143] [2021-03-26 00:40:34,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:34,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:40:34,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513958154] [2021-03-26 00:40:34,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:40:34,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:34,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:40:34,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:40:34,857 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 123 [2021-03-26 00:40:34,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 26 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 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 00:40:34,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:34,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 123 [2021-03-26 00:40:34,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:34,877 INFO L129 PetriNetUnfolder]: 10/38 cut-off events. [2021-03-26 00:40:34,877 INFO L130 PetriNetUnfolder]: For 274/279 co-relation queries the response was YES. [2021-03-26 00:40:34,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 38 events. 10/38 cut-off events. For 274/279 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 83 event pairs, 0 based on Foata normal form. 6/44 useless extension candidates. Maximal degree in co-relation 193. Up to 16 conditions per place. [2021-03-26 00:40:34,878 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2021-03-26 00:40:34,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 25 transitions, 216 flow [2021-03-26 00:40:34,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:40:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:40:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 378 transitions. [2021-03-26 00:40:34,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7682926829268293 [2021-03-26 00:40:34,879 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 378 transitions. [2021-03-26 00:40:34,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 378 transitions. [2021-03-26 00:40:34,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:34,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 378 transitions. [2021-03-26 00:40:34,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.5) internal successors, (378), 4 states have internal predecessors, (378), 0 states have call successors, (0), 0 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 00:40:34,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:34,881 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:34,881 INFO L185 Difference]: Start difference. First operand has 43 places, 26 transitions, 214 flow. Second operand 4 states and 378 transitions. [2021-03-26 00:40:34,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 25 transitions, 216 flow [2021-03-26 00:40:34,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 25 transitions, 159 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-26 00:40:34,883 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2021-03-26 00:40:34,883 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2021-03-26 00:40:34,883 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-26 00:40:34,883 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:34,883 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 0 transitions, 0 flow [2021-03-26 00:40:34,883 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 0 transitions, 0 flow [2021-03-26 00:40:34,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:40:34,884 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:40:34,884 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:34,884 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 00:40:34,884 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:40:34,884 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:40:34,884 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:34,884 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:40:34,885 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:40:34,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 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 00:40:34,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:40:34,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:40:34 BasicIcfg [2021-03-26 00:40:34,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:40:34,890 INFO L168 Benchmark]: Toolchain (without parser) took 5534.53 ms. Allocated memory was 255.9 MB in the beginning and 438.3 MB in the end (delta: 182.5 MB). Free memory was 233.7 MB in the beginning and 188.4 MB in the end (delta: 45.3 MB). Peak memory consumption was 227.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:34,890 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:40:34,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.37 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 233.7 MB in the beginning and 328.1 MB in the end (delta: -94.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:34,890 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.59 ms. Allocated memory is still 364.9 MB. Free memory was 328.1 MB in the beginning and 326.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:40:34,890 INFO L168 Benchmark]: Boogie Preprocessor took 19.48 ms. Allocated memory is still 364.9 MB. Free memory was 326.7 MB in the beginning and 325.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:34,891 INFO L168 Benchmark]: RCFGBuilder took 402.25 ms. Allocated memory is still 364.9 MB. Free memory was 325.2 MB in the beginning and 302.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:34,891 INFO L168 Benchmark]: TraceAbstraction took 4620.75 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 302.2 MB in the beginning and 188.4 MB in the end (delta: 113.8 MB). Peak memory consumption was 188.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:34,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 428.37 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 233.7 MB in the beginning and 328.1 MB in the end (delta: -94.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 58.59 ms. Allocated memory is still 364.9 MB. Free memory was 328.1 MB in the beginning and 326.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.48 ms. Allocated memory is still 364.9 MB. Free memory was 326.7 MB in the beginning and 325.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 402.25 ms. Allocated memory is still 364.9 MB. Free memory was 325.2 MB in the beginning and 302.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4620.75 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 302.2 MB in the beginning and 188.4 MB in the end (delta: 113.8 MB). Peak memory consumption was 188.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1478.0ms, 68 PlacesBefore, 31 PlacesAfterwards, 59 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 1194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 743, positive: 704, positive conditional: 704, 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: 631, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 631, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 631, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 168, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 743, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 631, unknown conditional: 631, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 20, Positive conditional cache size: 20, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 714.0ms, 36 PlacesBefore, 31 PlacesAfterwards, 27 TransitionsBefore, 24 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 5, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 24, Positive conditional cache size: 24, 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: 22.8ms, 41 PlacesBefore, 38 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 4, positive unconditional: 4, 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: 8, positive: 8, positive conditional: 4, positive unconditional: 4, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 32, Positive conditional cache size: 32, 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: 36.1ms, 48 PlacesBefore, 45 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 55 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 20, positive conditional: 8, positive unconditional: 12, 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: 21, positive: 20, positive conditional: 8, positive unconditional: 12, 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: 21, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 21, unknown conditional: 21, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 52, Positive conditional cache size: 52, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.1ms, 48 PlacesBefore, 46 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 131 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 71, positive conditional: 71, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 18, positive conditional: 8, positive unconditional: 10, 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: 19, positive: 18, positive conditional: 8, positive unconditional: 10, 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: 19, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 78, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 70, Positive conditional cache size: 70, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.2ms, 54 PlacesBefore, 51 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 197 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 80, positive conditional: 80, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 6, positive unconditional: 7, 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: 13, positive: 13, positive conditional: 6, positive unconditional: 7, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 90, positive: 67, positive conditional: 67, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 83, Positive conditional cache size: 83, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.5ms, 55 PlacesBefore, 55 PlacesAfterwards, 52 TransitionsBefore, 51 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 33 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 33, positive conditional: 33, 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: 33, positive: 33, positive conditional: 33, 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: 33, positive: 33, positive conditional: 33, 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: 33, positive: 33, positive conditional: 0, positive unconditional: 33, 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: 33, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 91, Positive cache size: 81, Positive conditional cache size: 81, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.9ms, 58 PlacesBefore, 58 PlacesAfterwards, 55 TransitionsBefore, 54 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, 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: 24, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 91, Positive cache size: 81, Positive conditional cache size: 81, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.2ms, 59 PlacesBefore, 57 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 212 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): 91, Positive cache size: 81, Positive conditional cache size: 81, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 176.8ms, 62 PlacesBefore, 57 PlacesAfterwards, 32 TransitionsBefore, 29 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, 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: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 67, Positive conditional cache size: 67, 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: 43.4ms, 46 PlacesBefore, 43 PlacesAfterwards, 27 TransitionsBefore, 26 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 43, Positive conditional cache size: 43, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 35 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): 46, Positive cache size: 43, Positive conditional cache size: 43, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, 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 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4500.2ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 776.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1571.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 96 SDtfs, 80 SDslu, 96 SDs, 0 SdLazy, 210 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 138.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 184.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=7, InterpolantAutomatonStates: 63, 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: 28.2ms SsaConstructionTime, 214.3ms SatisfiabilityAnalysisTime, 548.5ms InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 649 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...