/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/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:34:21,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:34:21,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:34:22,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:34:22,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:34:22,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:34:22,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:34:22,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:34:22,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:34:22,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:34:22,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:34:22,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:34:22,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:34:22,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:34:22,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:34:22,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:34:22,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:34:22,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:34:22,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:34:22,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:34:22,090 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 00:34:22,124 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:34:22,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:34:22,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:34:22,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:34:22,128 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:34:22,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:34:22,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:34:22,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:34:22,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:34:22,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:34:22,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:34:22,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:34:22,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:34:22,130 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:34:22,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:34:22,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:34:22,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:34:22,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:34:22,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:34:22,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:34:22,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:34:22,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:34:22,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:34:22,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:34:22,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:34:22,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:34:22,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:34:22,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:34:22,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:34:22,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:34:22,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:34:22,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:34:22,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:34:22,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:34:22,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:34:22,412 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:34:22,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-03-26 00:34:22,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d2e8e3a/f045ac7099ad44b6a127944e2d93c608/FLAG16476ac01 [2021-03-26 00:34:23,023 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:34:23,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-03-26 00:34:23,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d2e8e3a/f045ac7099ad44b6a127944e2d93c608/FLAG16476ac01 [2021-03-26 00:34:23,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d2e8e3a/f045ac7099ad44b6a127944e2d93c608 [2021-03-26 00:34:23,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:34:23,324 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:34:23,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:34:23,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:34:23,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:34:23,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0b9a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23, skipping insertion in model container [2021-03-26 00:34:23,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:34:23,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:34:23,510 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/safe002_tso.opt.i[949,962] [2021-03-26 00:34:23,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:34:23,662 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:34:23,673 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/safe002_tso.opt.i[949,962] [2021-03-26 00:34:23,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:34:23,789 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:34:23,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23 WrapperNode [2021-03-26 00:34:23,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:34:23,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:34:23,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:34:23,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:34:23,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:34:23,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:34:23,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:34:23,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:34:23,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... [2021-03-26 00:34:23,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:34:23,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:34:23,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:34:23,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:34:23,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:34:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:34:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:34:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:34:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:34:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:34:23,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:34:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:34:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:34:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:34:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:34:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:34:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:34:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:34:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:34:23,924 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 00:34:24,291 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:34:24,291 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:34:24,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:34:24 BoogieIcfgContainer [2021-03-26 00:34:24,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:34:24,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:34:24,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:34:24,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:34:24,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:34:23" (1/3) ... [2021-03-26 00:34:24,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@893f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:34:24, skipping insertion in model container [2021-03-26 00:34:24,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:34:23" (2/3) ... [2021-03-26 00:34:24,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@893f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:34:24, skipping insertion in model container [2021-03-26 00:34:24,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:34:24" (3/3) ... [2021-03-26 00:34:24,300 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2021-03-26 00:34:24,305 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:34:24,309 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:34:24,311 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:34:24,344 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,344 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,344 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,344 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,345 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,345 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,352 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,352 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,352 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,354 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,355 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,357 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,358 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,363 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,364 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,364 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,369 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,370 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:34:24,373 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:34:24,390 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:34:24,418 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:34:24,419 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:34:24,419 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:34:24,419 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:34:24,419 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:34:24,419 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:34:24,419 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:34:24,419 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:34:24,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 00:34:24,513 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 00:34:24,513 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:34:24,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 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. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:34:24,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 00:34:24,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 00:34:24,533 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:24,546 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 00:34:24,549 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 00:34:24,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 00:34:24,572 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 00:34:24,572 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:34:24,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:34:24,576 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:34:26,315 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-26 00:34:26,316 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-26 00:34:26,318 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1786 [2021-03-26 00:34:26,327 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 00:34:26,327 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:34:26,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:26,328 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:26,328 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:26,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:26,333 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-26 00:34:26,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:26,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918672938] [2021-03-26 00:34:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:26,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:26,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:26,608 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:34:26,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:34:26,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:26,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:34:26,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918672938] [2021-03-26 00:34:26,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:26,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:34:26,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777748186] [2021-03-26 00:34:26,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:34:26,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:26,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:34:26,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:34:26,671 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 116 [2021-03-26 00:34:26,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 0 states have call successors, (0), 0 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 00:34:26,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:26,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 116 [2021-03-26 00:34:26,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:26,780 INFO L129 PetriNetUnfolder]: 87/209 cut-off events. [2021-03-26 00:34:26,780 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:34:26,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 209 events. 87/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 928 event pairs, 2 based on Foata normal form. 25/225 useless extension candidates. Maximal degree in co-relation 374. Up to 73 conditions per place. [2021-03-26 00:34:26,783 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 11 selfloop transitions, 6 changer transitions 14/43 dead transitions. [2021-03-26 00:34:26,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 157 flow [2021-03-26 00:34:26,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:34:26,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:34:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 622 transitions. [2021-03-26 00:34:26,796 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7660098522167488 [2021-03-26 00:34:26,797 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 622 transitions. [2021-03-26 00:34:26,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 622 transitions. [2021-03-26 00:34:26,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:26,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 622 transitions. [2021-03-26 00:34:26,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.85714285714286) internal successors, (622), 7 states have internal predecessors, (622), 0 states have call successors, (0), 0 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 00:34:26,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 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 00:34:26,816 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 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 00:34:26,817 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 622 transitions. [2021-03-26 00:34:26,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 157 flow [2021-03-26 00:34:26,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:34:26,821 INFO L241 Difference]: Finished difference. Result has 40 places, 25 transitions, 106 flow [2021-03-26 00:34:26,823 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2021-03-26 00:34:26,823 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-26 00:34:26,823 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:26,823 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-26 00:34:26,824 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-26 00:34:26,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 106 flow [2021-03-26 00:34:26,838 INFO L129 PetriNetUnfolder]: 42/137 cut-off events. [2021-03-26 00:34:26,838 INFO L130 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2021-03-26 00:34:26,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 137 events. 42/137 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 623 event pairs, 18 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 328. Up to 65 conditions per place. [2021-03-26 00:34:26,841 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-26 00:34:27,290 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:34:27,485 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:34:27,542 INFO L154 LiptonReduction]: Checked pairs total: 213 [2021-03-26 00:34:27,542 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:34:27,542 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 719 [2021-03-26 00:34:27,544 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 100 flow [2021-03-26 00:34:27,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 0 states have call successors, (0), 0 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 00:34:27,544 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:27,544 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:27,545 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:34:27,545 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:27,545 INFO L82 PathProgramCache]: Analyzing trace with hash -2134171980, now seen corresponding path program 1 times [2021-03-26 00:34:27,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:27,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553195422] [2021-03-26 00:34:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:27,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:27,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:27,621 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:34:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:34:27,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:27,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:27,632 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 00:34:27,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553195422] [2021-03-26 00:34:27,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:27,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:34:27,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515190134] [2021-03-26 00:34:27,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:34:27,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:27,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:34:27,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:34:27,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-26 00:34:27,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:27,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:27,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-26 00:34:27,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:27,693 INFO L129 PetriNetUnfolder]: 50/147 cut-off events. [2021-03-26 00:34:27,693 INFO L130 PetriNetUnfolder]: For 198/234 co-relation queries the response was YES. [2021-03-26 00:34:27,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 147 events. 50/147 cut-off events. For 198/234 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 646 event pairs, 7 based on Foata normal form. 12/156 useless extension candidates. Maximal degree in co-relation 488. Up to 68 conditions per place. [2021-03-26 00:34:27,695 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 11 selfloop transitions, 9 changer transitions 7/37 dead transitions. [2021-03-26 00:34:27,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 37 transitions, 246 flow [2021-03-26 00:34:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:34:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:34:27,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 620 transitions. [2021-03-26 00:34:27,698 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7442977190876351 [2021-03-26 00:34:27,698 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 620 transitions. [2021-03-26 00:34:27,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 620 transitions. [2021-03-26 00:34:27,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:27,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 620 transitions. [2021-03-26 00:34:27,701 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 00:34:27,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 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 00:34:27,709 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 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 00:34:27,709 INFO L185 Difference]: Start difference. First operand has 34 places, 22 transitions, 100 flow. Second operand 7 states and 620 transitions. [2021-03-26 00:34:27,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 37 transitions, 246 flow [2021-03-26 00:34:27,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 37 transitions, 230 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-03-26 00:34:27,712 INFO L241 Difference]: Finished difference. Result has 44 places, 27 transitions, 177 flow [2021-03-26 00:34:27,712 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=177, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2021-03-26 00:34:27,714 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 00:34:27,714 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:27,714 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 27 transitions, 177 flow [2021-03-26 00:34:27,715 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 27 transitions, 177 flow [2021-03-26 00:34:27,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 27 transitions, 177 flow [2021-03-26 00:34:27,726 INFO L129 PetriNetUnfolder]: 40/115 cut-off events. [2021-03-26 00:34:27,726 INFO L130 PetriNetUnfolder]: For 209/216 co-relation queries the response was YES. [2021-03-26 00:34:27,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 115 events. 40/115 cut-off events. For 209/216 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 443 event pairs, 7 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 401. Up to 56 conditions per place. [2021-03-26 00:34:27,728 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-26 00:34:27,738 INFO L154 LiptonReduction]: Checked pairs total: 162 [2021-03-26 00:34:27,739 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:34:27,739 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 00:34:27,740 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 177 flow [2021-03-26 00:34:27,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:27,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:27,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:27,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:34:27,741 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:27,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:27,741 INFO L82 PathProgramCache]: Analyzing trace with hash 595570007, now seen corresponding path program 1 times [2021-03-26 00:34:27,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:27,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533384923] [2021-03-26 00:34:27,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:27,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:27,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:27,782 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:34:27,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:34:27,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:27,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:27,793 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 00:34:27,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533384923] [2021-03-26 00:34:27,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:27,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:34:27,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949542311] [2021-03-26 00:34:27,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:34:27,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:27,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:34:27,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:34:27,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-26 00:34:27,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 0 states have call successors, (0), 0 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 00:34:27,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:27,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-26 00:34:27,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:27,846 INFO L129 PetriNetUnfolder]: 39/130 cut-off events. [2021-03-26 00:34:27,847 INFO L130 PetriNetUnfolder]: For 379/440 co-relation queries the response was YES. [2021-03-26 00:34:27,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 130 events. 39/130 cut-off events. For 379/440 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 562 event pairs, 0 based on Foata normal form. 15/143 useless extension candidates. Maximal degree in co-relation 533. Up to 58 conditions per place. [2021-03-26 00:34:27,848 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 13 selfloop transitions, 16 changer transitions 9/48 dead transitions. [2021-03-26 00:34:27,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 48 transitions, 433 flow [2021-03-26 00:34:27,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:34:27,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:34:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 625 transitions. [2021-03-26 00:34:27,851 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7503001200480192 [2021-03-26 00:34:27,851 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 625 transitions. [2021-03-26 00:34:27,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 625 transitions. [2021-03-26 00:34:27,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:27,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 625 transitions. [2021-03-26 00:34:27,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.28571428571429) internal successors, (625), 7 states have internal predecessors, (625), 0 states have call successors, (0), 0 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 00:34:27,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 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 00:34:27,855 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 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 00:34:27,855 INFO L185 Difference]: Start difference. First operand has 41 places, 27 transitions, 177 flow. Second operand 7 states and 625 transitions. [2021-03-26 00:34:27,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 48 transitions, 433 flow [2021-03-26 00:34:27,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 411 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-26 00:34:27,859 INFO L241 Difference]: Finished difference. Result has 49 places, 35 transitions, 319 flow [2021-03-26 00:34:27,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=319, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2021-03-26 00:34:27,859 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-26 00:34:27,860 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:27,860 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 35 transitions, 319 flow [2021-03-26 00:34:27,860 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 35 transitions, 319 flow [2021-03-26 00:34:27,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 319 flow [2021-03-26 00:34:27,870 INFO L129 PetriNetUnfolder]: 31/99 cut-off events. [2021-03-26 00:34:27,870 INFO L130 PetriNetUnfolder]: For 307/316 co-relation queries the response was YES. [2021-03-26 00:34:27,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 99 events. 31/99 cut-off events. For 307/316 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 382 event pairs, 6 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 417. Up to 45 conditions per place. [2021-03-26 00:34:27,872 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-26 00:34:27,879 INFO L154 LiptonReduction]: Checked pairs total: 247 [2021-03-26 00:34:27,879 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:34:27,879 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 00:34:27,880 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 319 flow [2021-03-26 00:34:27,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 0 states have call successors, (0), 0 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 00:34:27,881 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:27,881 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:27,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:34:27,881 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:27,882 INFO L82 PathProgramCache]: Analyzing trace with hash -405583851, now seen corresponding path program 1 times [2021-03-26 00:34:27,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:27,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42095373] [2021-03-26 00:34:27,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:27,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:27,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:27,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:27,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:27,921 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:34:27,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:34:27,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:27,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:27,936 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 00:34:27,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42095373] [2021-03-26 00:34:27,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:27,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:34:27,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980610200] [2021-03-26 00:34:27,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:34:27,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:27,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:34:27,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:34:27,939 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-26 00:34:27,939 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 0 states have call successors, (0), 0 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 00:34:27,939 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:27,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-26 00:34:27,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:27,987 INFO L129 PetriNetUnfolder]: 36/119 cut-off events. [2021-03-26 00:34:27,987 INFO L130 PetriNetUnfolder]: For 464/523 co-relation queries the response was YES. [2021-03-26 00:34:27,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 119 events. 36/119 cut-off events. For 464/523 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 516 event pairs, 0 based on Foata normal form. 11/128 useless extension candidates. Maximal degree in co-relation 589. Up to 62 conditions per place. [2021-03-26 00:34:27,990 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 10 selfloop transitions, 9 changer transitions 21/50 dead transitions. [2021-03-26 00:34:27,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 559 flow [2021-03-26 00:34:27,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:34:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:34:27,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2021-03-26 00:34:27,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7478991596638656 [2021-03-26 00:34:27,992 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2021-03-26 00:34:27,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2021-03-26 00:34:27,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:27,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2021-03-26 00:34:27,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:27,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 00:34:27,996 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 00:34:27,996 INFO L185 Difference]: Start difference. First operand has 46 places, 35 transitions, 319 flow. Second operand 6 states and 534 transitions. [2021-03-26 00:34:27,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 559 flow [2021-03-26 00:34:28,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 50 transitions, 541 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-26 00:34:28,001 INFO L241 Difference]: Finished difference. Result has 49 places, 26 transitions, 221 flow [2021-03-26 00:34:28,001 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=49, PETRI_TRANSITIONS=26} [2021-03-26 00:34:28,002 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-26 00:34:28,002 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:28,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 26 transitions, 221 flow [2021-03-26 00:34:28,003 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 26 transitions, 221 flow [2021-03-26 00:34:28,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 26 transitions, 221 flow [2021-03-26 00:34:28,009 INFO L129 PetriNetUnfolder]: 16/55 cut-off events. [2021-03-26 00:34:28,010 INFO L130 PetriNetUnfolder]: For 188/193 co-relation queries the response was YES. [2021-03-26 00:34:28,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 55 events. 16/55 cut-off events. For 188/193 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 147 event pairs, 4 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 227. Up to 28 conditions per place. [2021-03-26 00:34:28,011 INFO L142 LiptonReduction]: Number of co-enabled transitions 142 [2021-03-26 00:34:28,015 INFO L154 LiptonReduction]: Checked pairs total: 99 [2021-03-26 00:34:28,015 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:34:28,016 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 00:34:28,018 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 26 transitions, 221 flow [2021-03-26 00:34:28,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 0 states have call successors, (0), 0 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 00:34:28,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:28,018 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:28,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:34:28,019 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:28,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:28,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1203059227, now seen corresponding path program 1 times [2021-03-26 00:34:28,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:28,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400314366] [2021-03-26 00:34:28,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:28,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:34:28,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,087 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:34:28,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:34:28,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,098 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 00:34:28,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400314366] [2021-03-26 00:34:28,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:28,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:34:28,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915242810] [2021-03-26 00:34:28,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:34:28,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:28,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:34:28,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:34:28,100 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-26 00:34:28,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 26 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:28,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:28,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-26 00:34:28,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:28,128 INFO L129 PetriNetUnfolder]: 12/54 cut-off events. [2021-03-26 00:34:28,128 INFO L130 PetriNetUnfolder]: For 226/243 co-relation queries the response was YES. [2021-03-26 00:34:28,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 54 events. 12/54 cut-off events. For 226/243 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 148 event pairs, 3 based on Foata normal form. 8/61 useless extension candidates. Maximal degree in co-relation 251. Up to 26 conditions per place. [2021-03-26 00:34:28,129 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 11 selfloop transitions, 7 changer transitions 4/32 dead transitions. [2021-03-26 00:34:28,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 32 transitions, 318 flow [2021-03-26 00:34:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:34:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:34:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 528 transitions. [2021-03-26 00:34:28,131 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7394957983193278 [2021-03-26 00:34:28,131 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 528 transitions. [2021-03-26 00:34:28,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 528 transitions. [2021-03-26 00:34:28,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:28,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 528 transitions. [2021-03-26 00:34:28,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:28,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 00:34:28,134 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 00:34:28,134 INFO L185 Difference]: Start difference. First operand has 48 places, 26 transitions, 221 flow. Second operand 6 states and 528 transitions. [2021-03-26 00:34:28,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 32 transitions, 318 flow [2021-03-26 00:34:28,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 32 transitions, 269 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-26 00:34:28,137 INFO L241 Difference]: Finished difference. Result has 48 places, 27 transitions, 213 flow [2021-03-26 00:34:28,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=213, PETRI_PLACES=48, PETRI_TRANSITIONS=27} [2021-03-26 00:34:28,137 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 17 predicate places. [2021-03-26 00:34:28,137 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:28,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 27 transitions, 213 flow [2021-03-26 00:34:28,138 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 27 transitions, 213 flow [2021-03-26 00:34:28,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 27 transitions, 213 flow [2021-03-26 00:34:28,142 INFO L129 PetriNetUnfolder]: 10/46 cut-off events. [2021-03-26 00:34:28,142 INFO L130 PetriNetUnfolder]: For 90/95 co-relation queries the response was YES. [2021-03-26 00:34:28,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 46 events. 10/46 cut-off events. For 90/95 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs, 3 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 180. Up to 20 conditions per place. [2021-03-26 00:34:28,143 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 00:34:28,145 INFO L154 LiptonReduction]: Checked pairs total: 100 [2021-03-26 00:34:28,145 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:34:28,145 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 00:34:28,146 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 213 flow [2021-03-26 00:34:28,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:28,147 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:28,147 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:28,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:34:28,147 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:28,147 INFO L82 PathProgramCache]: Analyzing trace with hash 810239925, now seen corresponding path program 1 times [2021-03-26 00:34:28,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:28,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257764266] [2021-03-26 00:34:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:28,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,180 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:34:28,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:34:28,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,192 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 00:34:28,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257764266] [2021-03-26 00:34:28,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:28,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:34:28,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648302591] [2021-03-26 00:34:28,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:34:28,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:28,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:34:28,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:34:28,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-26 00:34:28,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 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 00:34:28,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:28,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-26 00:34:28,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:28,226 INFO L129 PetriNetUnfolder]: 11/59 cut-off events. [2021-03-26 00:34:28,226 INFO L130 PetriNetUnfolder]: For 158/172 co-relation queries the response was YES. [2021-03-26 00:34:28,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 59 events. 11/59 cut-off events. For 158/172 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 192 event pairs, 3 based on Foata normal form. 3/61 useless extension candidates. Maximal degree in co-relation 276. Up to 28 conditions per place. [2021-03-26 00:34:28,226 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 6 selfloop transitions, 8 changer transitions 11/35 dead transitions. [2021-03-26 00:34:28,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 35 transitions, 348 flow [2021-03-26 00:34:28,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:34:28,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:34:28,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 528 transitions. [2021-03-26 00:34:28,228 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7394957983193278 [2021-03-26 00:34:28,228 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 528 transitions. [2021-03-26 00:34:28,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 528 transitions. [2021-03-26 00:34:28,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:28,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 528 transitions. [2021-03-26 00:34:28,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:28,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 00:34:28,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 00:34:28,232 INFO L185 Difference]: Start difference. First operand has 46 places, 27 transitions, 213 flow. Second operand 6 states and 528 transitions. [2021-03-26 00:34:28,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 35 transitions, 348 flow [2021-03-26 00:34:28,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 35 transitions, 327 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-26 00:34:28,234 INFO L241 Difference]: Finished difference. Result has 50 places, 24 transitions, 189 flow [2021-03-26 00:34:28,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2021-03-26 00:34:28,234 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 19 predicate places. [2021-03-26 00:34:28,235 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:28,235 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 24 transitions, 189 flow [2021-03-26 00:34:28,235 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 24 transitions, 189 flow [2021-03-26 00:34:28,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 24 transitions, 189 flow [2021-03-26 00:34:28,239 INFO L129 PetriNetUnfolder]: 7/35 cut-off events. [2021-03-26 00:34:28,239 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2021-03-26 00:34:28,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 35 events. 7/35 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 145. Up to 17 conditions per place. [2021-03-26 00:34:28,240 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-26 00:34:28,294 INFO L154 LiptonReduction]: Checked pairs total: 81 [2021-03-26 00:34:28,294 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:34:28,294 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-26 00:34:28,295 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 23 transitions, 190 flow [2021-03-26 00:34:28,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 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 00:34:28,295 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:28,295 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:28,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:34:28,296 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:28,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:28,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2122328059, now seen corresponding path program 2 times [2021-03-26 00:34:28,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:28,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787438270] [2021-03-26 00:34:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:28,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:34:28,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,327 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:34:28,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:34:28,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,339 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 00:34:28,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787438270] [2021-03-26 00:34:28,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:28,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:34:28,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641617939] [2021-03-26 00:34:28,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:34:28,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:28,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:34:28,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:34:28,341 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 121 [2021-03-26 00:34:28,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 23 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 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 00:34:28,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:28,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 121 [2021-03-26 00:34:28,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:28,385 INFO L129 PetriNetUnfolder]: 7/41 cut-off events. [2021-03-26 00:34:28,385 INFO L130 PetriNetUnfolder]: For 133/141 co-relation queries the response was YES. [2021-03-26 00:34:28,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 41 events. 7/41 cut-off events. For 133/141 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 102 event pairs, 2 based on Foata normal form. 6/45 useless extension candidates. Maximal degree in co-relation 197. Up to 21 conditions per place. [2021-03-26 00:34:28,386 INFO L132 encePairwiseOnDemand]: 114/121 looper letters, 5 selfloop transitions, 3 changer transitions 10/27 dead transitions. [2021-03-26 00:34:28,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 27 transitions, 264 flow [2021-03-26 00:34:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:34:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:34:28,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 612 transitions. [2021-03-26 00:34:28,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7225501770956316 [2021-03-26 00:34:28,388 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 612 transitions. [2021-03-26 00:34:28,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 612 transitions. [2021-03-26 00:34:28,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:28,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 612 transitions. [2021-03-26 00:34:28,390 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 00:34:28,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 0 states have call successors, (0), 0 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 00:34:28,392 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 121.0) internal successors, (968), 8 states have internal predecessors, (968), 0 states have call successors, (0), 0 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 00:34:28,392 INFO L185 Difference]: Start difference. First operand has 48 places, 23 transitions, 190 flow. Second operand 7 states and 612 transitions. [2021-03-26 00:34:28,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 27 transitions, 264 flow [2021-03-26 00:34:28,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 27 transitions, 202 flow, removed 14 selfloop flow, removed 11 redundant places. [2021-03-26 00:34:28,394 INFO L241 Difference]: Finished difference. Result has 45 places, 17 transitions, 92 flow [2021-03-26 00:34:28,394 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=17} [2021-03-26 00:34:28,394 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 14 predicate places. [2021-03-26 00:34:28,394 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:28,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 17 transitions, 92 flow [2021-03-26 00:34:28,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 17 transitions, 92 flow [2021-03-26 00:34:28,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 17 transitions, 92 flow [2021-03-26 00:34:28,399 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-03-26 00:34:28,399 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-26 00:34:28,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 23 events. 2/23 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 2 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2021-03-26 00:34:28,399 INFO L142 LiptonReduction]: Number of co-enabled transitions 54 [2021-03-26 00:34:28,419 INFO L154 LiptonReduction]: Checked pairs total: 52 [2021-03-26 00:34:28,419 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:34:28,419 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 00:34:28,420 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 16 transitions, 88 flow [2021-03-26 00:34:28,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 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 00:34:28,420 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:28,421 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:28,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:34:28,421 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:28,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:28,421 INFO L82 PathProgramCache]: Analyzing trace with hash -935232027, now seen corresponding path program 1 times [2021-03-26 00:34:28,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:28,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967443532] [2021-03-26 00:34:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:28,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:34:28,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:34:28,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:34:28,488 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 00:34:28,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967443532] [2021-03-26 00:34:28,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:28,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:34:28,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580964427] [2021-03-26 00:34:28,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:34:28,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:28,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:34:28,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:34:28,494 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 122 [2021-03-26 00:34:28,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 16 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 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 00:34:28,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:28,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 122 [2021-03-26 00:34:28,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:28,524 INFO L129 PetriNetUnfolder]: 35/87 cut-off events. [2021-03-26 00:34:28,524 INFO L130 PetriNetUnfolder]: For 340/375 co-relation queries the response was YES. [2021-03-26 00:34:28,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 87 events. 35/87 cut-off events. For 340/375 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 299 event pairs, 19 based on Foata normal form. 12/92 useless extension candidates. Maximal degree in co-relation 249. Up to 49 conditions per place. [2021-03-26 00:34:28,525 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 5 selfloop transitions, 4 changer transitions 7/26 dead transitions. [2021-03-26 00:34:28,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 140 flow [2021-03-26 00:34:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:34:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:34:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 468 transitions. [2021-03-26 00:34:28,527 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7672131147540984 [2021-03-26 00:34:28,527 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 468 transitions. [2021-03-26 00:34:28,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 468 transitions. [2021-03-26 00:34:28,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:28,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 468 transitions. [2021-03-26 00:34:28,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.6) internal successors, (468), 5 states have internal predecessors, (468), 0 states have call successors, (0), 0 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 00:34:28,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 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 00:34:28,531 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 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 00:34:28,531 INFO L185 Difference]: Start difference. First operand has 39 places, 16 transitions, 88 flow. Second operand 5 states and 468 transitions. [2021-03-26 00:34:28,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 140 flow [2021-03-26 00:34:28,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 110 flow, removed 8 selfloop flow, removed 10 redundant places. [2021-03-26 00:34:28,532 INFO L241 Difference]: Finished difference. Result has 36 places, 19 transitions, 94 flow [2021-03-26 00:34:28,532 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=36, PETRI_TRANSITIONS=19} [2021-03-26 00:34:28,532 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-26 00:34:28,532 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:28,532 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 19 transitions, 94 flow [2021-03-26 00:34:28,533 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 19 transitions, 94 flow [2021-03-26 00:34:28,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 19 transitions, 94 flow [2021-03-26 00:34:28,539 INFO L129 PetriNetUnfolder]: 30/74 cut-off events. [2021-03-26 00:34:28,539 INFO L130 PetriNetUnfolder]: For 95/100 co-relation queries the response was YES. [2021-03-26 00:34:28,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 74 events. 30/74 cut-off events. For 95/100 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 214 event pairs, 18 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 214. Up to 39 conditions per place. [2021-03-26 00:34:28,540 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-26 00:34:28,628 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-26 00:34:28,628 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:34:28,628 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-03-26 00:34:28,629 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 105 flow [2021-03-26 00:34:28,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 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 00:34:28,629 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:28,629 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:28,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:34:28,630 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:28,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:28,630 INFO L82 PathProgramCache]: Analyzing trace with hash -441691292, now seen corresponding path program 1 times [2021-03-26 00:34:28,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:28,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844669719] [2021-03-26 00:34:28,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:28,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,653 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:34:28,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:34:28,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:34:28,660 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 00:34:28,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844669719] [2021-03-26 00:34:28,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:28,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:34:28,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60815552] [2021-03-26 00:34:28,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:34:28,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:28,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:34:28,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:34:28,663 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 125 [2021-03-26 00:34:28,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:28,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:28,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 125 [2021-03-26 00:34:28,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:28,694 INFO L129 PetriNetUnfolder]: 18/58 cut-off events. [2021-03-26 00:34:28,694 INFO L130 PetriNetUnfolder]: For 182/237 co-relation queries the response was YES. [2021-03-26 00:34:28,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 58 events. 18/58 cut-off events. For 182/237 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 163 event pairs, 4 based on Foata normal form. 17/73 useless extension candidates. Maximal degree in co-relation 206. Up to 35 conditions per place. [2021-03-26 00:34:28,695 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 5 selfloop transitions, 7 changer transitions 7/29 dead transitions. [2021-03-26 00:34:28,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 201 flow [2021-03-26 00:34:28,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:34:28,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:34:28,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2021-03-26 00:34:28,696 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.748 [2021-03-26 00:34:28,696 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 561 transitions. [2021-03-26 00:34:28,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 561 transitions. [2021-03-26 00:34:28,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:28,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 561 transitions. [2021-03-26 00:34:28,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 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 00:34:28,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 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 00:34:28,700 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 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 00:34:28,700 INFO L185 Difference]: Start difference. First operand has 34 places, 19 transitions, 105 flow. Second operand 6 states and 561 transitions. [2021-03-26 00:34:28,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 201 flow [2021-03-26 00:34:28,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 188 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:34:28,701 INFO L241 Difference]: Finished difference. Result has 39 places, 22 transitions, 148 flow [2021-03-26 00:34:28,701 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2021-03-26 00:34:28,702 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2021-03-26 00:34:28,702 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:28,702 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 22 transitions, 148 flow [2021-03-26 00:34:28,702 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 22 transitions, 148 flow [2021-03-26 00:34:28,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 22 transitions, 148 flow [2021-03-26 00:34:28,706 INFO L129 PetriNetUnfolder]: 13/47 cut-off events. [2021-03-26 00:34:28,707 INFO L130 PetriNetUnfolder]: For 113/125 co-relation queries the response was YES. [2021-03-26 00:34:28,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 47 events. 13/47 cut-off events. For 113/125 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 110 event pairs, 4 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 173. Up to 23 conditions per place. [2021-03-26 00:34:28,707 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-26 00:34:28,801 INFO L154 LiptonReduction]: Checked pairs total: 9 [2021-03-26 00:34:28,802 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:34:28,802 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 100 [2021-03-26 00:34:28,802 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 157 flow [2021-03-26 00:34:28,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:34:28,803 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:28,803 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:28,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:34:28,803 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:28,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:28,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1266846604, now seen corresponding path program 1 times [2021-03-26 00:34:28,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:28,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210848529] [2021-03-26 00:34:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:28,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,847 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:34:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:34:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:28,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:28,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:34:28,859 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 00:34:28,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210848529] [2021-03-26 00:34:28,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:28,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:34:28,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224778166] [2021-03-26 00:34:28,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:34:28,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:28,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:34:28,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:34:28,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 128 [2021-03-26 00:34:28,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 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 00:34:28,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:28,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 128 [2021-03-26 00:34:28,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:28,903 INFO L129 PetriNetUnfolder]: 7/36 cut-off events. [2021-03-26 00:34:28,903 INFO L130 PetriNetUnfolder]: For 161/181 co-relation queries the response was YES. [2021-03-26 00:34:28,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 36 events. 7/36 cut-off events. For 161/181 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 82 event pairs, 0 based on Foata normal form. 11/46 useless extension candidates. Maximal degree in co-relation 155. Up to 20 conditions per place. [2021-03-26 00:34:28,904 INFO L132 encePairwiseOnDemand]: 118/128 looper letters, 2 selfloop transitions, 10 changer transitions 4/26 dead transitions. [2021-03-26 00:34:28,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 225 flow [2021-03-26 00:34:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:34:28,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:34:28,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 648 transitions. [2021-03-26 00:34:28,906 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7232142857142857 [2021-03-26 00:34:28,906 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 648 transitions. [2021-03-26 00:34:28,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 648 transitions. [2021-03-26 00:34:28,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:28,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 648 transitions. [2021-03-26 00:34:28,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.57142857142857) internal successors, (648), 7 states have internal predecessors, (648), 0 states have call successors, (0), 0 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 00:34:28,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 0 states have call successors, (0), 0 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 00:34:28,909 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 0 states have call successors, (0), 0 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 00:34:28,909 INFO L185 Difference]: Start difference. First operand has 37 places, 22 transitions, 157 flow. Second operand 7 states and 648 transitions. [2021-03-26 00:34:28,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 225 flow [2021-03-26 00:34:28,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 179 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-03-26 00:34:28,911 INFO L241 Difference]: Finished difference. Result has 41 places, 22 transitions, 149 flow [2021-03-26 00:34:28,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=149, PETRI_PLACES=41, PETRI_TRANSITIONS=22} [2021-03-26 00:34:28,912 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 10 predicate places. [2021-03-26 00:34:28,912 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:28,912 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 22 transitions, 149 flow [2021-03-26 00:34:28,913 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 22 transitions, 149 flow [2021-03-26 00:34:28,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 22 transitions, 149 flow [2021-03-26 00:34:28,916 INFO L129 PetriNetUnfolder]: 5/30 cut-off events. [2021-03-26 00:34:28,916 INFO L130 PetriNetUnfolder]: For 54/56 co-relation queries the response was YES. [2021-03-26 00:34:28,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 30 events. 5/30 cut-off events. For 54/56 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 57 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 95. Up to 11 conditions per place. [2021-03-26 00:34:28,916 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 00:34:29,120 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 00:34:29,120 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:34:29,120 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 208 [2021-03-26 00:34:29,121 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 141 flow [2021-03-26 00:34:29,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 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 00:34:29,121 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:34:29,121 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:34:29,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:34:29,121 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:34:29,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:34:29,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1284295481, now seen corresponding path program 1 times [2021-03-26 00:34:29,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:34:29,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130184681] [2021-03-26 00:34:29,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:34:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:34:29,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:29,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:34:29,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:29,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:29,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:29,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:29,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:34:29,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:34:29,169 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 00:34:29,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130184681] [2021-03-26 00:34:29,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:34:29,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:34:29,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352995515] [2021-03-26 00:34:29,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:34:29,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:34:29,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:34:29,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:34:29,171 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 132 [2021-03-26 00:34:29,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 141 flow. Second operand has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 00:34:29,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:34:29,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 132 [2021-03-26 00:34:29,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:34:29,188 INFO L129 PetriNetUnfolder]: 5/21 cut-off events. [2021-03-26 00:34:29,188 INFO L130 PetriNetUnfolder]: For 77/78 co-relation queries the response was YES. [2021-03-26 00:34:29,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 21 events. 5/21 cut-off events. For 77/78 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2021-03-26 00:34:29,188 INFO L132 encePairwiseOnDemand]: 126/132 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-03-26 00:34:29,188 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 17 transitions, 135 flow [2021-03-26 00:34:29,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:34:29,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:34:29,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 387 transitions. [2021-03-26 00:34:29,190 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7329545454545454 [2021-03-26 00:34:29,190 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 387 transitions. [2021-03-26 00:34:29,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 387 transitions. [2021-03-26 00:34:29,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:34:29,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 387 transitions. [2021-03-26 00:34:29,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 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 00:34:29,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 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 00:34:29,193 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 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 00:34:29,193 INFO L185 Difference]: Start difference. First operand has 35 places, 18 transitions, 141 flow. Second operand 4 states and 387 transitions. [2021-03-26 00:34:29,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 17 transitions, 135 flow [2021-03-26 00:34:29,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 17 transitions, 81 flow, removed 10 selfloop flow, removed 8 redundant places. [2021-03-26 00:34:29,194 INFO L241 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2021-03-26 00:34:29,194 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2021-03-26 00:34:29,194 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2021-03-26 00:34:29,194 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:34:29,195 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 0 transitions, 0 flow [2021-03-26 00:34:29,195 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 0 transitions, 0 flow [2021-03-26 00:34:29,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:34:29,195 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:34:29,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:34:29,195 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 00:34:29,195 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:34:29,195 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:34:29,195 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:34:29,196 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 00:34:29,196 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:34:29,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 00:34:29,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:34:29,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:34:29 BasicIcfg [2021-03-26 00:34:29,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:34:29,201 INFO L168 Benchmark]: Toolchain (without parser) took 5876.73 ms. Allocated memory was 255.9 MB in the beginning and 453.0 MB in the end (delta: 197.1 MB). Free memory was 234.3 MB in the beginning and 230.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 200.3 MB. Max. memory is 16.0 GB. [2021-03-26 00:34:29,201 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:34:29,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.79 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 233.7 MB in the beginning and 339.2 MB in the end (delta: -105.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:34:29,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.66 ms. Allocated memory is still 377.5 MB. Free memory was 339.2 MB in the beginning and 337.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:34:29,202 INFO L168 Benchmark]: Boogie Preprocessor took 18.41 ms. Allocated memory is still 377.5 MB. Free memory was 337.8 MB in the beginning and 336.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:34:29,203 INFO L168 Benchmark]: RCFGBuilder took 431.25 ms. Allocated memory is still 377.5 MB. Free memory was 335.9 MB in the beginning and 314.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:34:29,203 INFO L168 Benchmark]: TraceAbstraction took 4905.49 ms. Allocated memory was 377.5 MB in the beginning and 453.0 MB in the end (delta: 75.5 MB). Free memory was 313.4 MB in the beginning and 230.0 MB in the end (delta: 83.4 MB). Peak memory consumption was 160.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:34:29,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 466.79 ms. Allocated memory was 255.9 MB in the beginning and 377.5 MB in the end (delta: 121.6 MB). Free memory was 233.7 MB in the beginning and 339.2 MB in the end (delta: -105.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.66 ms. Allocated memory is still 377.5 MB. Free memory was 339.2 MB in the beginning and 337.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.41 ms. Allocated memory is still 377.5 MB. Free memory was 337.8 MB in the beginning and 336.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 431.25 ms. Allocated memory is still 377.5 MB. Free memory was 335.9 MB in the beginning and 314.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4905.49 ms. Allocated memory was 377.5 MB in the beginning and 453.0 MB in the end (delta: 75.5 MB). Free memory was 313.4 MB in the beginning and 230.0 MB in the end (delta: 83.4 MB). Peak memory consumption was 160.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1766.8ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 692, positive: 645, positive conditional: 645, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 568, positive: 543, positive conditional: 0, positive unconditional: 543, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 568, positive: 543, positive conditional: 0, positive unconditional: 543, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 568, positive: 543, positive conditional: 0, positive unconditional: 543, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 692, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 568, unknown conditional: 568, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 22, Positive conditional cache size: 22, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 718.4ms, 40 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 22 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 213 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 26, Positive conditional cache size: 26, 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: 24.0ms, 44 PlacesBefore, 41 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 27, positive conditional: 27, 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: 8, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 3, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 32, Positive conditional cache size: 32, 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: 19.1ms, 49 PlacesBefore, 46 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 247 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 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.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 33, Positive conditional cache size: 33, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.9ms, 49 PlacesBefore, 48 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 99 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, 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: 4, positive: 3, positive conditional: 3, positive unconditional: 0, 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 36, Positive conditional cache size: 36, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6ms, 48 PlacesBefore, 46 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 100 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 19, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 37, Positive conditional cache size: 37, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.2ms, 50 PlacesBefore, 48 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 81 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 3, positive unconditional: 3, 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: 6, positive: 6, positive conditional: 3, positive unconditional: 3, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 22, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 19, Positive conditional cache size: 19, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.4ms, 45 PlacesBefore, 39 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 52 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 3, positive conditional: 3, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 11, Positive conditional cache size: 11, 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: 95.4ms, 36 PlacesBefore, 34 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 14, 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: 13, positive: 13, positive conditional: 10, positive unconditional: 3, 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: 10, positive unconditional: 3, 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: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 12, Positive conditional cache size: 12, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.6ms, 39 PlacesBefore, 37 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 9, 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: 8, positive: 8, positive conditional: 7, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 7, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 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: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 11, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 207.5ms, 41 PlacesBefore, 35 PlacesAfterwards, 22 TransitionsBefore, 18 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 29 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, 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, 74 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: 4783.6ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 656.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1903.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 81 SDtfs, 91 SDslu, 106 SDs, 0 SdLazy, 232 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 157.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 231.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=319occurred in iteration=3, InterpolantAutomatonStates: 68, 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: 21.5ms SsaConstructionTime, 160.2ms SatisfiabilityAnalysisTime, 583.4ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 621 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...