/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/safe012_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:49:20,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:49:20,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:49:20,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:49:20,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:49:20,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:49:20,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:49:20,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:49:20,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:49:20,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:49:20,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:49:20,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:49:20,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:49:20,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:49:20,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:49:20,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:49:20,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:49:20,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:49:20,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:49:20,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:49:20,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:49:20,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:49:20,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:49:20,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:49:20,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:49:20,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:49:20,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:49:20,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:49:20,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:49:20,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:49:20,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:49:20,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:49:20,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:49:20,722 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:49:20,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:49:20,723 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:49:20,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:49:20,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:49:20,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:49:20,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:49:20,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:49:20,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:49:20,726 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:49:20,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:49:20,726 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:49:20,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:49:20,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:49:20,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:49:20,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:49:20,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:49:20,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:49:20,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:49:20,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:49:20,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:49:20,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:49:20,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:49:20,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:49:20,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:49:20,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:49:20,730 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:49:21,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:49:21,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:49:21,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:49:21,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:49:21,298 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:49:21,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2021-04-28 23:49:21,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0edaffe/021dbe3fa1bb4ab6837b4e20fe24e267/FLAGe6698ac8d [2021-04-28 23:49:22,144 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:49:22,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2021-04-28 23:49:22,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0edaffe/021dbe3fa1bb4ab6837b4e20fe24e267/FLAGe6698ac8d [2021-04-28 23:49:22,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0edaffe/021dbe3fa1bb4ab6837b4e20fe24e267 [2021-04-28 23:49:22,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:49:22,428 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:49:22,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:49:22,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:49:22,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:49:22,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:49:22" (1/1) ... [2021-04-28 23:49:22,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e92bf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:22, skipping insertion in model container [2021-04-28 23:49:22,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:49:22" (1/1) ... [2021-04-28 23:49:22,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:49:22,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:49:22,673 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/safe012_tso.oepc.i[950,963] [2021-04-28 23:49:22,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:49:22,994 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:49:23,017 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/safe012_tso.oepc.i[950,963] [2021-04-28 23:49:23,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:49:23,258 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:49:23,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23 WrapperNode [2021-04-28 23:49:23,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:49:23,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:49:23,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:49:23,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:49:23,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:49:23,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:49:23,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:49:23,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:49:23,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (1/1) ... [2021-04-28 23:49:23,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:49:23,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:49:23,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:49:23,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:49:23,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (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 [2021-04-28 23:49:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:49:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:49:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:49:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:49:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:49:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:49:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:49:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:49:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:49:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:49:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:49:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:49:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:49:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:49:23,465 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:49:24,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:49:24,002 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:49:24,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:49:24 BoogieIcfgContainer [2021-04-28 23:49:24,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:49:24,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:49:24,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:49:24,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:49:24,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:49:22" (1/3) ... [2021-04-28 23:49:24,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3fe05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:49:24, skipping insertion in model container [2021-04-28 23:49:24,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:49:23" (2/3) ... [2021-04-28 23:49:24,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3fe05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:49:24, skipping insertion in model container [2021-04-28 23:49:24,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:49:24" (3/3) ... [2021-04-28 23:49:24,018 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2021-04-28 23:49:24,026 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:49:24,033 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:49:24,034 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:49:24,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,102 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,102 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,109 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,109 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,122 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,122 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,139 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:49:24,149 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:49:24,179 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:49:24,232 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:49:24,232 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:49:24,233 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:49:24,233 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:49:24,233 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:49:24,233 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:49:24,233 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:49:24,233 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:49:24,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-04-28 23:49:24,346 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-04-28 23:49:24,346 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:49:24,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:49:24,356 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-04-28 23:49:24,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-04-28 23:49:24,378 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:24,400 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-04-28 23:49:24,404 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-04-28 23:49:24,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-04-28 23:49:24,427 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-04-28 23:49:24,427 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:49:24,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 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. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:49:24,431 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:49:28,352 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:49:28,547 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:49:28,713 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:49:28,868 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:49:29,051 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:49:29,261 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:49:29,470 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:49:29,661 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:49:29,839 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:49:29,998 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:49:30,183 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:49:30,379 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:49:32,629 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-28 23:49:32,944 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-28 23:49:34,219 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-28 23:49:34,333 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 23:49:34,561 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-28 23:49:34,671 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 23:49:34,710 INFO L158 LiptonReduction]: Checked pairs total: 5406 [2021-04-28 23:49:34,711 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-28 23:49:34,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10340 [2021-04-28 23:49:34,736 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-04-28 23:49:34,736 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:49:34,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:34,738 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:34,738 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:34,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:34,745 INFO L82 PathProgramCache]: Analyzing trace with hash -260371519, now seen corresponding path program 1 times [2021-04-28 23:49:34,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:34,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61225607] [2021-04-28 23:49:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:35,083 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:49:35,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:49:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:35,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61225607] [2021-04-28 23:49:35,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:35,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:49:35,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913069817] [2021-04-28 23:49:35,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:49:35,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:35,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:49:35,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:49:35,148 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 167 [2021-04-28 23:49:35,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:35,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 167 [2021-04-28 23:49:35,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:35,326 INFO L129 PetriNetUnfolder]: 47/236 cut-off events. [2021-04-28 23:49:35,326 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:49:35,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 236 events. 47/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1520 event pairs, 29 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 307. Up to 88 conditions per place. [2021-04-28 23:49:35,330 INFO L132 encePairwiseOnDemand]: 148/167 looper letters, 4 selfloop transitions, 3 changer transitions 38/77 dead transitions. [2021-04-28 23:49:35,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 77 transitions, 227 flow [2021-04-28 23:49:35,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:49:35,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:49:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2021-04-28 23:49:35,348 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7744510978043913 [2021-04-28 23:49:35,349 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2021-04-28 23:49:35,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2021-04-28 23:49:35,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:35,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2021-04-28 23:49:35,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,374 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 388 transitions. [2021-04-28 23:49:35,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 77 transitions, 227 flow [2021-04-28 23:49:35,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 77 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:49:35,385 INFO L241 Difference]: Finished difference. Result has 80 places, 39 transitions, 99 flow [2021-04-28 23:49:35,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=80, PETRI_TRANSITIONS=39} [2021-04-28 23:49:35,388 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 0 predicate places. [2021-04-28 23:49:35,389 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:35,389 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 39 transitions, 99 flow [2021-04-28 23:49:35,389 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 39 transitions, 99 flow [2021-04-28 23:49:35,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 39 transitions, 99 flow [2021-04-28 23:49:35,397 INFO L129 PetriNetUnfolder]: 3/51 cut-off events. [2021-04-28 23:49:35,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:49:35,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 51 events. 3/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 187 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 64. Up to 10 conditions per place. [2021-04-28 23:49:35,400 INFO L146 LiptonReduction]: Number of co-enabled transitions 822 [2021-04-28 23:49:35,418 INFO L158 LiptonReduction]: Checked pairs total: 576 [2021-04-28 23:49:35,418 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:49:35,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-28 23:49:35,420 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 99 flow [2021-04-28 23:49:35,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,421 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:35,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:35,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:49:35,422 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:35,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:35,423 INFO L82 PathProgramCache]: Analyzing trace with hash 518415925, now seen corresponding path program 1 times [2021-04-28 23:49:35,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:35,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182645237] [2021-04-28 23:49:35,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:35,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:35,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:35,573 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:49:35,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:49:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:35,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182645237] [2021-04-28 23:49:35,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:35,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:49:35,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446099777] [2021-04-28 23:49:35,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:49:35,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:35,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:49:35,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:49:35,591 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 167 [2021-04-28 23:49:35,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:35,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 167 [2021-04-28 23:49:35,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:35,616 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2021-04-28 23:49:35,616 INFO L130 PetriNetUnfolder]: For 6/10 co-relation queries the response was YES. [2021-04-28 23:49:35,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 53 events. 4/53 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 200 event pairs, 0 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 78. Up to 11 conditions per place. [2021-04-28 23:49:35,617 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 5 selfloop transitions, 3 changer transitions 1/40 dead transitions. [2021-04-28 23:49:35,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 117 flow [2021-04-28 23:49:35,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:49:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:49:35,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2021-04-28 23:49:35,621 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7225548902195609 [2021-04-28 23:49:35,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2021-04-28 23:49:35,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2021-04-28 23:49:35,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:35,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2021-04-28 23:49:35,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,628 INFO L185 Difference]: Start difference. First operand has 47 places, 39 transitions, 99 flow. Second operand 3 states and 362 transitions. [2021-04-28 23:49:35,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 117 flow [2021-04-28 23:49:35,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:49:35,631 INFO L241 Difference]: Finished difference. Result has 49 places, 38 transitions, 105 flow [2021-04-28 23:49:35,631 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2021-04-28 23:49:35,632 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -31 predicate places. [2021-04-28 23:49:35,632 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:35,632 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 38 transitions, 105 flow [2021-04-28 23:49:35,633 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 38 transitions, 105 flow [2021-04-28 23:49:35,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 105 flow [2021-04-28 23:49:35,640 INFO L129 PetriNetUnfolder]: 2/48 cut-off events. [2021-04-28 23:49:35,640 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 23:49:35,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 48 events. 2/48 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 164 event pairs, 1 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2021-04-28 23:49:35,642 INFO L146 LiptonReduction]: Number of co-enabled transitions 772 [2021-04-28 23:49:35,663 INFO L158 LiptonReduction]: Checked pairs total: 561 [2021-04-28 23:49:35,663 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:49:35,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-04-28 23:49:35,665 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 105 flow [2021-04-28 23:49:35,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,667 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:35,667 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:35,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:49:35,667 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:35,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:35,668 INFO L82 PathProgramCache]: Analyzing trace with hash 518397480, now seen corresponding path program 1 times [2021-04-28 23:49:35,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:35,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674804963] [2021-04-28 23:49:35,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:35,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:35,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:35,778 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:49:35,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:49:35,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:35,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674804963] [2021-04-28 23:49:35,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:35,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:49:35,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069124557] [2021-04-28 23:49:35,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:49:35,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:35,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:49:35,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:49:35,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 167 [2021-04-28 23:49:35,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 105 flow. Second operand has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:35,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 167 [2021-04-28 23:49:35,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:35,829 INFO L129 PetriNetUnfolder]: 3/49 cut-off events. [2021-04-28 23:49:35,830 INFO L130 PetriNetUnfolder]: For 17/24 co-relation queries the response was YES. [2021-04-28 23:49:35,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 49 events. 3/49 cut-off events. For 17/24 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 184 event pairs, 2 based on Foata normal form. 4/30 useless extension candidates. Maximal degree in co-relation 76. Up to 10 conditions per place. [2021-04-28 23:49:35,832 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 4 selfloop transitions, 3 changer transitions 1/38 dead transitions. [2021-04-28 23:49:35,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 119 flow [2021-04-28 23:49:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:49:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:49:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-04-28 23:49:35,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.720558882235529 [2021-04-28 23:49:35,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-04-28 23:49:35,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-04-28 23:49:35,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:35,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-04-28 23:49:35,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,845 INFO L185 Difference]: Start difference. First operand has 48 places, 38 transitions, 105 flow. Second operand 3 states and 361 transitions. [2021-04-28 23:49:35,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 119 flow [2021-04-28 23:49:35,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 113 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:49:35,848 INFO L241 Difference]: Finished difference. Result has 49 places, 37 transitions, 108 flow [2021-04-28 23:49:35,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2021-04-28 23:49:35,849 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -31 predicate places. [2021-04-28 23:49:35,849 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:35,850 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 37 transitions, 108 flow [2021-04-28 23:49:35,852 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 37 transitions, 108 flow [2021-04-28 23:49:35,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 37 transitions, 108 flow [2021-04-28 23:49:35,863 INFO L129 PetriNetUnfolder]: 1/41 cut-off events. [2021-04-28 23:49:35,863 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 23:49:35,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 41 events. 1/41 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 150 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 56. Up to 6 conditions per place. [2021-04-28 23:49:35,865 INFO L146 LiptonReduction]: Number of co-enabled transitions 716 [2021-04-28 23:49:35,890 INFO L158 LiptonReduction]: Checked pairs total: 546 [2021-04-28 23:49:35,890 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:49:35,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-04-28 23:49:35,892 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 108 flow [2021-04-28 23:49:35,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:35,893 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:35,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:49:35,894 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:35,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:35,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1109716282, now seen corresponding path program 1 times [2021-04-28 23:49:35,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:35,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445059747] [2021-04-28 23:49:35,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:35,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:35,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:35,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:35,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:35,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445059747] [2021-04-28 23:49:35,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:35,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:49:35,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622519497] [2021-04-28 23:49:35,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:49:35,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:35,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:49:35,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:49:35,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 167 [2021-04-28 23:49:35,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:35,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 167 [2021-04-28 23:49:35,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:35,979 INFO L129 PetriNetUnfolder]: 1/46 cut-off events. [2021-04-28 23:49:35,980 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-04-28 23:49:35,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 46 events. 1/46 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 146 event pairs, 0 based on Foata normal form. 2/26 useless extension candidates. Maximal degree in co-relation 70. Up to 7 conditions per place. [2021-04-28 23:49:35,981 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 1 selfloop transitions, 3 changer transitions 14/38 dead transitions. [2021-04-28 23:49:35,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 38 transitions, 127 flow [2021-04-28 23:49:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:49:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:49:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2021-04-28 23:49:35,984 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.687125748502994 [2021-04-28 23:49:35,984 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2021-04-28 23:49:35,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2021-04-28 23:49:35,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:35,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2021-04-28 23:49:35,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,990 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:35,990 INFO L185 Difference]: Start difference. First operand has 48 places, 37 transitions, 108 flow. Second operand 4 states and 459 transitions. [2021-04-28 23:49:35,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 38 transitions, 127 flow [2021-04-28 23:49:35,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 38 transitions, 119 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:49:35,993 INFO L241 Difference]: Finished difference. Result has 51 places, 24 transitions, 84 flow [2021-04-28 23:49:35,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=51, PETRI_TRANSITIONS=24} [2021-04-28 23:49:35,994 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -29 predicate places. [2021-04-28 23:49:35,994 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:35,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 24 transitions, 84 flow [2021-04-28 23:49:35,994 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 24 transitions, 84 flow [2021-04-28 23:49:35,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 24 transitions, 84 flow [2021-04-28 23:49:35,999 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-04-28 23:49:35,999 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 23:49:35,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 24 events. 0/24 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 23:49:36,000 INFO L146 LiptonReduction]: Number of co-enabled transitions 232 [2021-04-28 23:49:36,003 INFO L158 LiptonReduction]: Checked pairs total: 194 [2021-04-28 23:49:36,003 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:49:36,003 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-28 23:49:36,005 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 84 flow [2021-04-28 23:49:36,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:36,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:36,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:49:36,007 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:36,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:36,007 INFO L82 PathProgramCache]: Analyzing trace with hash -37618372, now seen corresponding path program 1 times [2021-04-28 23:49:36,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:36,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563210289] [2021-04-28 23:49:36,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:36,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:36,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:36,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:36,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:36,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:36,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563210289] [2021-04-28 23:49:36,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:36,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:49:36,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962391801] [2021-04-28 23:49:36,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:49:36,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:36,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:49:36,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:49:36,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 167 [2021-04-28 23:49:36,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:36,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 167 [2021-04-28 23:49:36,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:36,175 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-04-28 23:49:36,175 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-04-28 23:49:36,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 38 events. 0/38 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 98 event pairs, 0 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-04-28 23:49:36,177 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 1 selfloop transitions, 3 changer transitions 2/25 dead transitions. [2021-04-28 23:49:36,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 25 transitions, 99 flow [2021-04-28 23:49:36,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:49:36,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:49:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 483 transitions. [2021-04-28 23:49:36,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7230538922155688 [2021-04-28 23:49:36,180 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 483 transitions. [2021-04-28 23:49:36,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 483 transitions. [2021-04-28 23:49:36,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:36,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 483 transitions. [2021-04-28 23:49:36,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,186 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,187 INFO L185 Difference]: Start difference. First operand has 40 places, 24 transitions, 84 flow. Second operand 4 states and 483 transitions. [2021-04-28 23:49:36,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 25 transitions, 99 flow [2021-04-28 23:49:36,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 25 transitions, 70 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-04-28 23:49:36,192 INFO L241 Difference]: Finished difference. Result has 37 places, 23 transitions, 70 flow [2021-04-28 23:49:36,192 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2021-04-28 23:49:36,193 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -43 predicate places. [2021-04-28 23:49:36,193 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:36,193 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 23 transitions, 70 flow [2021-04-28 23:49:36,193 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 23 transitions, 70 flow [2021-04-28 23:49:36,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 23 transitions, 70 flow [2021-04-28 23:49:36,198 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-04-28 23:49:36,198 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 23:49:36,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 23 events. 0/23 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 28 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-28 23:49:36,201 INFO L146 LiptonReduction]: Number of co-enabled transitions 160 [2021-04-28 23:49:36,252 INFO L158 LiptonReduction]: Checked pairs total: 189 [2021-04-28 23:49:36,253 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 23:49:36,253 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-04-28 23:49:36,262 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 70 flow [2021-04-28 23:49:36,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,263 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:36,264 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:36,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:49:36,264 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:36,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:36,264 INFO L82 PathProgramCache]: Analyzing trace with hash -306479540, now seen corresponding path program 1 times [2021-04-28 23:49:36,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:36,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208623149] [2021-04-28 23:49:36,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:36,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:36,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:36,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:36,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:49:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:36,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208623149] [2021-04-28 23:49:36,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:36,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:49:36,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468079152] [2021-04-28 23:49:36,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:49:36,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:36,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:49:36,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:49:36,380 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 168 [2021-04-28 23:49:36,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:36,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 168 [2021-04-28 23:49:36,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:36,555 INFO L129 PetriNetUnfolder]: 432/697 cut-off events. [2021-04-28 23:49:36,555 INFO L130 PetriNetUnfolder]: For 691/728 co-relation queries the response was YES. [2021-04-28 23:49:36,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 697 events. 432/697 cut-off events. For 691/728 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 3888 event pairs, 216 based on Foata normal form. 63/354 useless extension candidates. Maximal degree in co-relation 1579. Up to 541 conditions per place. [2021-04-28 23:49:36,566 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 11 selfloop transitions, 10 changer transitions 20/51 dead transitions. [2021-04-28 23:49:36,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 206 flow [2021-04-28 23:49:36,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:49:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:49:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 587 transitions. [2021-04-28 23:49:36,570 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6988095238095238 [2021-04-28 23:49:36,570 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 587 transitions. [2021-04-28 23:49:36,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 587 transitions. [2021-04-28 23:49:36,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:36,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 587 transitions. [2021-04-28 23:49:36,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,579 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,579 INFO L185 Difference]: Start difference. First operand has 36 places, 23 transitions, 70 flow. Second operand 5 states and 587 transitions. [2021-04-28 23:49:36,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 206 flow [2021-04-28 23:49:36,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 194 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-28 23:49:36,587 INFO L241 Difference]: Finished difference. Result has 39 places, 31 transitions, 146 flow [2021-04-28 23:49:36,588 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=146, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2021-04-28 23:49:36,588 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -41 predicate places. [2021-04-28 23:49:36,588 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:36,588 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 31 transitions, 146 flow [2021-04-28 23:49:36,589 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 31 transitions, 146 flow [2021-04-28 23:49:36,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 31 transitions, 146 flow [2021-04-28 23:49:36,689 INFO L129 PetriNetUnfolder]: 351/551 cut-off events. [2021-04-28 23:49:36,690 INFO L130 PetriNetUnfolder]: For 277/277 co-relation queries the response was YES. [2021-04-28 23:49:36,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1646 conditions, 551 events. 351/551 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 2782 event pairs, 189 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 1636. Up to 478 conditions per place. [2021-04-28 23:49:36,697 INFO L146 LiptonReduction]: Number of co-enabled transitions 86 [2021-04-28 23:49:36,855 INFO L158 LiptonReduction]: Checked pairs total: 172 [2021-04-28 23:49:36,855 INFO L160 LiptonReduction]: Total number of compositions: 4 [2021-04-28 23:49:36,855 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 267 [2021-04-28 23:49:36,857 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 153 flow [2021-04-28 23:49:36,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,858 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:36,858 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:36,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:49:36,858 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:36,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:36,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1930737232, now seen corresponding path program 1 times [2021-04-28 23:49:36,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:36,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267359682] [2021-04-28 23:49:36,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:36,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:36,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:36,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:36,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:36,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:36,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:49:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:36,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267359682] [2021-04-28 23:49:36,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:36,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:49:36,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158584804] [2021-04-28 23:49:36,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:49:36,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:36,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:49:36,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:49:36,944 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 172 [2021-04-28 23:49:36,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:36,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:36,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 172 [2021-04-28 23:49:36,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:37,150 INFO L129 PetriNetUnfolder]: 342/652 cut-off events. [2021-04-28 23:49:37,150 INFO L130 PetriNetUnfolder]: For 662/1310 co-relation queries the response was YES. [2021-04-28 23:49:37,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2538 conditions, 652 events. 342/652 cut-off events. For 662/1310 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 3934 event pairs, 54 based on Foata normal form. 91/380 useless extension candidates. Maximal degree in co-relation 2526. Up to 562 conditions per place. [2021-04-28 23:49:37,157 INFO L132 encePairwiseOnDemand]: 157/172 looper letters, 11 selfloop transitions, 19 changer transitions 20/60 dead transitions. [2021-04-28 23:49:37,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 60 transitions, 417 flow [2021-04-28 23:49:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:49:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:49:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 711 transitions. [2021-04-28 23:49:37,161 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.688953488372093 [2021-04-28 23:49:37,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 711 transitions. [2021-04-28 23:49:37,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 711 transitions. [2021-04-28 23:49:37,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:37,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 711 transitions. [2021-04-28 23:49:37,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:37,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:37,170 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 172.0) internal successors, (1204), 7 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:37,170 INFO L185 Difference]: Start difference. First operand has 37 places, 32 transitions, 153 flow. Second operand 6 states and 711 transitions. [2021-04-28 23:49:37,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 60 transitions, 417 flow [2021-04-28 23:49:37,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 60 transitions, 405 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 23:49:37,179 INFO L241 Difference]: Finished difference. Result has 43 places, 40 transitions, 290 flow [2021-04-28 23:49:37,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=290, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2021-04-28 23:49:37,180 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -37 predicate places. [2021-04-28 23:49:37,180 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:37,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 40 transitions, 290 flow [2021-04-28 23:49:37,181 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 40 transitions, 290 flow [2021-04-28 23:49:37,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 40 transitions, 290 flow [2021-04-28 23:49:37,243 INFO L129 PetriNetUnfolder]: 252/479 cut-off events. [2021-04-28 23:49:37,243 INFO L130 PetriNetUnfolder]: For 710/830 co-relation queries the response was YES. [2021-04-28 23:49:37,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 479 events. 252/479 cut-off events. For 710/830 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 2701 event pairs, 54 based on Foata normal form. 3/247 useless extension candidates. Maximal degree in co-relation 2164. Up to 394 conditions per place. [2021-04-28 23:49:37,250 INFO L146 LiptonReduction]: Number of co-enabled transitions 62 [2021-04-28 23:49:37,390 INFO L158 LiptonReduction]: Checked pairs total: 177 [2021-04-28 23:49:37,391 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-28 23:49:37,391 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 211 [2021-04-28 23:49:37,394 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 41 transitions, 300 flow [2021-04-28 23:49:37,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:37,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:37,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:37,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:49:37,395 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:37,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:37,396 INFO L82 PathProgramCache]: Analyzing trace with hash -764422880, now seen corresponding path program 1 times [2021-04-28 23:49:37,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:37,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778865816] [2021-04-28 23:49:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:37,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:37,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:37,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:37,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:37,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:37,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:37,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:37,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:49:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:37,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778865816] [2021-04-28 23:49:37,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:37,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:49:37,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013399382] [2021-04-28 23:49:37,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:49:37,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:37,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:49:37,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:49:37,510 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 175 [2021-04-28 23:49:37,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 41 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:37,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:37,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 175 [2021-04-28 23:49:37,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:37,712 INFO L129 PetriNetUnfolder]: 153/422 cut-off events. [2021-04-28 23:49:37,713 INFO L130 PetriNetUnfolder]: For 885/1059 co-relation queries the response was YES. [2021-04-28 23:49:37,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2150 conditions, 422 events. 153/422 cut-off events. For 885/1059 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 2816 event pairs, 0 based on Foata normal form. 81/304 useless extension candidates. Maximal degree in co-relation 2135. Up to 346 conditions per place. [2021-04-28 23:49:37,717 INFO L132 encePairwiseOnDemand]: 157/175 looper letters, 2 selfloop transitions, 28 changer transitions 12/51 dead transitions. [2021-04-28 23:49:37,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 51 transitions, 476 flow [2021-04-28 23:49:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:49:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:49:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 812 transitions. [2021-04-28 23:49:37,723 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6628571428571428 [2021-04-28 23:49:37,723 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 812 transitions. [2021-04-28 23:49:37,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 812 transitions. [2021-04-28 23:49:37,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:37,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 812 transitions. [2021-04-28 23:49:37,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:37,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:37,732 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:37,732 INFO L185 Difference]: Start difference. First operand has 41 places, 41 transitions, 300 flow. Second operand 7 states and 812 transitions. [2021-04-28 23:49:37,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 51 transitions, 476 flow [2021-04-28 23:49:37,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 380 flow, removed 38 selfloop flow, removed 4 redundant places. [2021-04-28 23:49:37,747 INFO L241 Difference]: Finished difference. Result has 46 places, 39 transitions, 295 flow [2021-04-28 23:49:37,747 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=295, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2021-04-28 23:49:37,747 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -34 predicate places. [2021-04-28 23:49:37,748 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:37,748 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 39 transitions, 295 flow [2021-04-28 23:49:37,748 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 39 transitions, 295 flow [2021-04-28 23:49:37,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 295 flow [2021-04-28 23:49:37,780 INFO L129 PetriNetUnfolder]: 81/223 cut-off events. [2021-04-28 23:49:37,781 INFO L130 PetriNetUnfolder]: For 322/346 co-relation queries the response was YES. [2021-04-28 23:49:37,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 223 events. 81/223 cut-off events. For 322/346 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1125 event pairs, 0 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 972. Up to 163 conditions per place. [2021-04-28 23:49:37,784 INFO L146 LiptonReduction]: Number of co-enabled transitions 40 [2021-04-28 23:49:37,999 INFO L158 LiptonReduction]: Checked pairs total: 54 [2021-04-28 23:49:37,999 INFO L160 LiptonReduction]: Total number of compositions: 9 [2021-04-28 23:49:38,000 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-04-28 23:49:38,001 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 295 flow [2021-04-28 23:49:38,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:38,002 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:49:38,002 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:49:38,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:49:38,003 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:49:38,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:49:38,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1417694397, now seen corresponding path program 1 times [2021-04-28 23:49:38,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:49:38,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280901305] [2021-04-28 23:49:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:49:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:49:38,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:38,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:49:38,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:49:38,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:49:38,093 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:49:38,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:49:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:49:38,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280901305] [2021-04-28 23:49:38,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:49:38,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:49:38,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728811948] [2021-04-28 23:49:38,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:49:38,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:49:38,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:49:38,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:49:38,105 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 184 [2021-04-28 23:49:38,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:38,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:49:38,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 184 [2021-04-28 23:49:38,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:49:38,183 INFO L129 PetriNetUnfolder]: 81/196 cut-off events. [2021-04-28 23:49:38,184 INFO L130 PetriNetUnfolder]: For 471/509 co-relation queries the response was YES. [2021-04-28 23:49:38,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 196 events. 81/196 cut-off events. For 471/509 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 962 event pairs, 0 based on Foata normal form. 30/127 useless extension candidates. Maximal degree in co-relation 916. Up to 163 conditions per place. [2021-04-28 23:49:38,185 INFO L132 encePairwiseOnDemand]: 164/184 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2021-04-28 23:49:38,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 325 flow [2021-04-28 23:49:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:49:38,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:49:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 561 transitions. [2021-04-28 23:49:38,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6097826086956522 [2021-04-28 23:49:38,189 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 561 transitions. [2021-04-28 23:49:38,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 561 transitions. [2021-04-28 23:49:38,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:49:38,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 561 transitions. [2021-04-28 23:49:38,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.2) internal successors, (561), 5 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) [2021-04-28 23:49:38,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:38,195 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:38,195 INFO L185 Difference]: Start difference. First operand has 42 places, 39 transitions, 295 flow. Second operand 5 states and 561 transitions. [2021-04-28 23:49:38,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 325 flow [2021-04-28 23:49:38,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 231 flow, removed 27 selfloop flow, removed 5 redundant places. [2021-04-28 23:49:38,200 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-04-28 23:49:38,200 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-04-28 23:49:38,200 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -40 predicate places. [2021-04-28 23:49:38,201 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:49:38,201 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-04-28 23:49:38,201 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-04-28 23:49:38,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:49:38,202 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:49:38,202 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:49:38,202 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. [2021-04-28 23:49:38,202 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:49:38,202 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:49:38,203 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:49:38,203 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:49:38,204 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:49:38,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:49:38,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:49:38,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:49:38 BasicIcfg [2021-04-28 23:49:38,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:49:38,211 INFO L168 Benchmark]: Toolchain (without parser) took 15823.89 ms. Allocated memory was 306.2 MB in the beginning and 450.9 MB in the end (delta: 144.7 MB). Free memory was 280.2 MB in the beginning and 173.8 MB in the end (delta: 106.5 MB). Peak memory consumption was 253.4 MB. Max. memory is 16.0 GB. [2021-04-28 23:49:38,212 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 306.2 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:49:38,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.34 ms. Allocated memory is still 306.2 MB. Free memory was 277.1 MB in the beginning and 274.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:49:38,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.40 ms. Allocated memory is still 306.2 MB. Free memory was 274.5 MB in the beginning and 272.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:49:38,213 INFO L168 Benchmark]: Boogie Preprocessor took 31.24 ms. Allocated memory is still 306.2 MB. Free memory was 272.4 MB in the beginning and 271.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:49:38,214 INFO L168 Benchmark]: RCFGBuilder took 661.34 ms. Allocated memory is still 306.2 MB. Free memory was 271.4 MB in the beginning and 247.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-28 23:49:38,214 INFO L168 Benchmark]: TraceAbstraction took 14202.19 ms. Allocated memory was 306.2 MB in the beginning and 450.9 MB in the end (delta: 144.7 MB). Free memory was 247.3 MB in the beginning and 173.8 MB in the end (delta: 73.5 MB). Peak memory consumption was 220.3 MB. Max. memory is 16.0 GB. [2021-04-28 23:49:38,216 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 306.2 MB. Free memory is still 274.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 828.34 ms. Allocated memory is still 306.2 MB. Free memory was 277.1 MB in the beginning and 274.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.40 ms. Allocated memory is still 306.2 MB. Free memory was 274.5 MB in the beginning and 272.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.24 ms. Allocated memory is still 306.2 MB. Free memory was 272.4 MB in the beginning and 271.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 661.34 ms. Allocated memory is still 306.2 MB. Free memory was 271.4 MB in the beginning and 247.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14202.19 ms. Allocated memory was 306.2 MB in the beginning and 450.9 MB in the end (delta: 144.7 MB). Free memory was 247.3 MB in the beginning and 173.8 MB in the end (delta: 73.5 MB). Peak memory consumption was 220.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10306.6ms, 70 PlacesBefore, 80 PlacesAfterwards, 61 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 48 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 5406 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2166, positive: 2006, positive conditional: 2006, positive unconditional: 0, negative: 160, negative conditional: 160, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 904, positive: 861, positive conditional: 0, positive unconditional: 861, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 904, positive: 861, positive conditional: 0, positive unconditional: 861, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 904, positive: 839, positive conditional: 0, positive unconditional: 839, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 319, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 214, negative conditional: 0, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2166, positive: 1145, positive conditional: 1145, positive unconditional: 0, negative: 117, negative conditional: 117, negative unconditional: 0, unknown: 904, unknown conditional: 904, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 887, Positive cache size: 844, Positive conditional cache size: 844, Positive unconditional cache size: 0, Negative cache size: 43, Negative conditional cache size: 43, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.6ms, 80 PlacesBefore, 47 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 822 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 576 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 123, positive conditional: 123, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 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: 144, positive: 114, positive conditional: 114, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 900, Positive cache size: 853, Positive conditional cache size: 853, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.7ms, 49 PlacesBefore, 48 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 772 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 561 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 152, positive: 131, positive conditional: 131, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 152, positive: 129, positive conditional: 129, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 904, Positive cache size: 855, Positive conditional cache size: 855, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8ms, 49 PlacesBefore, 48 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 716 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 546 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 19, negative conditional: 12, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 123, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 908, Positive cache size: 855, Positive conditional cache size: 855, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 51 PlacesBefore, 40 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 194 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, positive: 44, positive conditional: 44, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 918, Positive cache size: 865, Positive conditional cache size: 865, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.4ms, 37 PlacesBefore, 36 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 71, positive: 51, positive conditional: 51, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 8, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 71, positive: 44, positive conditional: 44, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 926, Positive cache size: 872, Positive conditional cache size: 872, Positive unconditional cache size: 0, Negative cache size: 54, Negative conditional cache size: 54, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 266.1ms, 39 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 32 TransitionsAfterwards, 86 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 172 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 148, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 29, positive conditional: 22, positive unconditional: 7, 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: 30, positive: 29, positive conditional: 22, positive unconditional: 7, 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: 30, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 148, positive: 107, positive conditional: 107, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 956, Positive cache size: 901, Positive conditional cache size: 901, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 209.9ms, 43 PlacesBefore, 41 PlacesAfterwards, 40 TransitionsBefore, 41 TransitionsAfterwards, 62 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 177 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 8, 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: 9, positive: 8, positive conditional: 8, 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: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 965, Positive cache size: 909, Positive conditional cache size: 909, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.0ms, 46 PlacesBefore, 42 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 54, 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: 6, positive: 6, positive conditional: 6, 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: 6, positive: 6, positive conditional: 6, 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: 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: 54, positive: 48, positive conditional: 48, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 971, Positive cache size: 915, Positive conditional cache size: 915, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5ms, 40 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): 971, Positive cache size: 915, Positive conditional cache size: 915, Positive unconditional cache size: 0, Negative cache size: 56, Negative conditional cache size: 56, 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, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 13984.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1232.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10490.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 63 SDtfs, 48 SDslu, 21 SDs, 0 SdLazy, 300 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 300.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 152.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=300occurred in iteration=7, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.0ms SsaConstructionTime, 266.8ms SatisfiabilityAnalysisTime, 756.0ms InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...