/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/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:23:32,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:23:32,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:23:32,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:23:32,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:23:32,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:23:32,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:23:32,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:23:32,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:23:32,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:23:32,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:23:32,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:23:32,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:23:32,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:23:32,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:23:32,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:23:32,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:23:32,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:23:32,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:23:32,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:23:32,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:23:32,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:23:32,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:23:32,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:23:32,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:23:32,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:23:32,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:23:32,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:23:32,337 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 23:23:32,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:23:32,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:23:32,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:23:32,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:23:32,403 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:23:32,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:23:32,404 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:23:32,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:23:32,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:23:32,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:23:32,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:23:32,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:23:32,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:23:32,406 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:23:32,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:23:32,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:23:32,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:23:32,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:23:32,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:23:32,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:23:32,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:23:32,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:23:32,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:23:32,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:23:32,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:23:32,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:23:32,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:23:32,409 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:23:32,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:23:32,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:23:32,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:23:32,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:23:32,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:23:32,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:23:32,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:23:32,867 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:23:32,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2021-04-28 23:23:32,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f8f7d9e/4e986519f5454690b2fc0be3260ad548/FLAG13076f157 [2021-04-28 23:23:33,682 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:23:33,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2021-04-28 23:23:33,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f8f7d9e/4e986519f5454690b2fc0be3260ad548/FLAG13076f157 [2021-04-28 23:23:33,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f8f7d9e/4e986519f5454690b2fc0be3260ad548 [2021-04-28 23:23:33,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:23:34,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:23:34,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:23:34,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:23:34,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:23:34,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:23:33" (1/1) ... [2021-04-28 23:23:34,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1432c933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34, skipping insertion in model container [2021-04-28 23:23:34,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:23:33" (1/1) ... [2021-04-28 23:23:34,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:23:34,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:23:34,248 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/safe001_tso.oepc.i[950,963] [2021-04-28 23:23:34,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:23:34,604 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:23:34,621 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/safe001_tso.oepc.i[950,963] [2021-04-28 23:23:34,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:23:34,843 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:23:34,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34 WrapperNode [2021-04-28 23:23:34,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:23:34,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:23:34,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:23:34,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:23:34,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:23:34,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:23:34,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:23:34,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:23:34,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (1/1) ... [2021-04-28 23:23:34,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:23:34,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:23:34,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:23:34,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:23:34,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (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 23:23:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:23:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:23:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:23:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:23:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:23:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:23:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:23:35,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:23:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:23:35,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:23:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:23:35,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:23:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:23:35,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:23:35,085 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 23:23:35,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:23:35,580 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:23:35,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:23:35 BoogieIcfgContainer [2021-04-28 23:23:35,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:23:35,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:23:35,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:23:35,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:23:35,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:23:33" (1/3) ... [2021-04-28 23:23:35,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350c36cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:23:35, skipping insertion in model container [2021-04-28 23:23:35,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:34" (2/3) ... [2021-04-28 23:23:35,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350c36cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:23:35, skipping insertion in model container [2021-04-28 23:23:35,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:23:35" (3/3) ... [2021-04-28 23:23:35,592 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2021-04-28 23:23:35,599 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:23:35,605 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:23:35,606 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:23:35,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,641 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,641 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,644 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,644 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,647 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,647 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,652 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,652 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,658 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,661 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,662 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:35,664 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:23:35,688 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:23:35,714 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:23:35,714 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:23:35,714 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:23:35,714 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:23:35,714 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:23:35,715 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:23:35,715 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:23:35,715 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:23:35,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:23:35,797 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 23:23:35,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:23:35,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:23:35,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:23:35,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-28 23:23:35,826 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:35,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:23:35,849 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:23:35,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-28 23:23:35,873 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-28 23:23:35,874 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:23:35,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:23:35,878 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:23:40,822 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:23:40,972 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:23:41,152 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:23:41,305 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:23:41,608 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:23:42,058 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:23:42,240 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:23:42,589 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:23:42,804 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:23:43,010 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:23:43,215 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:23:43,418 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:23:43,618 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:23:43,827 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:23:44,035 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:23:44,246 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:23:44,460 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:23:44,660 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:23:44,849 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:23:45,070 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:23:45,302 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:23:45,522 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:23:45,734 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:23:46,298 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:23:46,591 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:23:46,872 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:23:47,164 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:23:47,288 INFO L158 LiptonReduction]: Checked pairs total: 6642 [2021-04-28 23:23:47,289 INFO L160 LiptonReduction]: Total number of compositions: 94 [2021-04-28 23:23:47,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11469 [2021-04-28 23:23:47,316 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-04-28 23:23:47,316 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:23:47,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:47,318 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:47,318 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:47,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1747938615, now seen corresponding path program 1 times [2021-04-28 23:23:47,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:47,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996471623] [2021-04-28 23:23:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:47,643 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:23:47,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:23:47,665 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 23:23:47,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996471623] [2021-04-28 23:23:47,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:47,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:23:47,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397584825] [2021-04-28 23:23:47,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:23:47,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:47,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:23:47,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:23:47,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:23:47,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 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 23:23:47,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:47,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:23:47,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:47,980 INFO L129 PetriNetUnfolder]: 514/1289 cut-off events. [2021-04-28 23:23:47,980 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:23:47,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 1289 events. 514/1289 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10980 event pairs, 175 based on Foata normal form. 0/765 useless extension candidates. Maximal degree in co-relation 2089. Up to 423 conditions per place. [2021-04-28 23:23:47,992 INFO L132 encePairwiseOnDemand]: 147/168 looper letters, 7 selfloop transitions, 7 changer transitions 36/81 dead transitions. [2021-04-28 23:23:47,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 245 flow [2021-04-28 23:23:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:23:47,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:23:48,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2021-04-28 23:23:48,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-04-28 23:23:48,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2021-04-28 23:23:48,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2021-04-28 23:23:48,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:48,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2021-04-28 23:23:48,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 23:23:48,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 23:23:48,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 23:23:48,033 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 351 transitions. [2021-04-28 23:23:48,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 81 transitions, 245 flow [2021-04-28 23:23:48,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 81 transitions, 242 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:23:48,041 INFO L241 Difference]: Finished difference. Result has 81 places, 45 transitions, 138 flow [2021-04-28 23:23:48,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, 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=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=81, PETRI_TRANSITIONS=45} [2021-04-28 23:23:48,044 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 1 predicate places. [2021-04-28 23:23:48,044 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:48,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 45 transitions, 138 flow [2021-04-28 23:23:48,045 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 45 transitions, 138 flow [2021-04-28 23:23:48,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 138 flow [2021-04-28 23:23:48,076 INFO L129 PetriNetUnfolder]: 88/312 cut-off events. [2021-04-28 23:23:48,076 INFO L130 PetriNetUnfolder]: For 26/30 co-relation queries the response was YES. [2021-04-28 23:23:48,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 312 events. 88/312 cut-off events. For 26/30 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2077 event pairs, 32 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 560. Up to 87 conditions per place. [2021-04-28 23:23:48,085 INFO L146 LiptonReduction]: Number of co-enabled transitions 1040 [2021-04-28 23:23:48,093 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-28 23:23:48,093 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:48,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-04-28 23:23:48,095 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 138 flow [2021-04-28 23:23:48,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 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 23:23:48,096 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:48,096 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:48,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:23:48,097 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:48,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:48,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1648479576, now seen corresponding path program 1 times [2021-04-28 23:23:48,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:48,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309665897] [2021-04-28 23:23:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:48,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:48,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:48,207 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 23:23:48,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309665897] [2021-04-28 23:23:48,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:48,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:23:48,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136113542] [2021-04-28 23:23:48,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:23:48,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:48,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:23:48,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:23:48,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 168 [2021-04-28 23:23:48,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:48,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:48,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 168 [2021-04-28 23:23:48,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:48,272 INFO L129 PetriNetUnfolder]: 74/269 cut-off events. [2021-04-28 23:23:48,273 INFO L130 PetriNetUnfolder]: For 68/101 co-relation queries the response was YES. [2021-04-28 23:23:48,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 269 events. 74/269 cut-off events. For 68/101 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1655 event pairs, 20 based on Foata normal form. 5/184 useless extension candidates. Maximal degree in co-relation 536. Up to 72 conditions per place. [2021-04-28 23:23:48,277 INFO L132 encePairwiseOnDemand]: 164/168 looper letters, 5 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2021-04-28 23:23:48,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 178 flow [2021-04-28 23:23:48,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:23:48,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:23:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2021-04-28 23:23:48,286 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7698412698412699 [2021-04-28 23:23:48,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2021-04-28 23:23:48,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2021-04-28 23:23:48,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:48,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2021-04-28 23:23:48,290 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 23:23:48,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 23:23:48,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 23:23:48,296 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 138 flow. Second operand 3 states and 388 transitions. [2021-04-28 23:23:48,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 178 flow [2021-04-28 23:23:48,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:23:48,302 INFO L241 Difference]: Finished difference. Result has 51 places, 49 transitions, 165 flow [2021-04-28 23:23:48,302 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2021-04-28 23:23:48,303 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -29 predicate places. [2021-04-28 23:23:48,303 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:48,303 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 49 transitions, 165 flow [2021-04-28 23:23:48,305 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 49 transitions, 165 flow [2021-04-28 23:23:48,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 49 transitions, 165 flow [2021-04-28 23:23:48,336 INFO L129 PetriNetUnfolder]: 74/269 cut-off events. [2021-04-28 23:23:48,336 INFO L130 PetriNetUnfolder]: For 33/52 co-relation queries the response was YES. [2021-04-28 23:23:48,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 269 events. 74/269 cut-off events. For 33/52 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1697 event pairs, 14 based on Foata normal form. 1/181 useless extension candidates. Maximal degree in co-relation 474. Up to 72 conditions per place. [2021-04-28 23:23:48,345 INFO L146 LiptonReduction]: Number of co-enabled transitions 1168 [2021-04-28 23:23:48,359 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-28 23:23:48,359 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:48,360 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-28 23:23:48,363 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 165 flow [2021-04-28 23:23:48,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:48,364 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:48,364 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:48,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:23:48,367 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:48,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:48,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1662338250, now seen corresponding path program 1 times [2021-04-28 23:23:48,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:48,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226264433] [2021-04-28 23:23:48,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:48,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:48,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:48,501 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:23:48,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:23:48,519 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 23:23:48,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226264433] [2021-04-28 23:23:48,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:48,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:23:48,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047158346] [2021-04-28 23:23:48,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:23:48,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:48,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:23:48,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:23:48,523 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:23:48,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:48,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:48,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:23:48,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:48,587 INFO L129 PetriNetUnfolder]: 57/218 cut-off events. [2021-04-28 23:23:48,587 INFO L130 PetriNetUnfolder]: For 60/173 co-relation queries the response was YES. [2021-04-28 23:23:48,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 218 events. 57/218 cut-off events. For 60/173 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1224 event pairs, 0 based on Foata normal form. 2/150 useless extension candidates. Maximal degree in co-relation 502. Up to 62 conditions per place. [2021-04-28 23:23:48,590 INFO L132 encePairwiseOnDemand]: 160/168 looper letters, 18 selfloop transitions, 10 changer transitions 0/59 dead transitions. [2021-04-28 23:23:48,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 276 flow [2021-04-28 23:23:48,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:23:48,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:23:48,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2021-04-28 23:23:48,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2021-04-28 23:23:48,593 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 434 transitions. [2021-04-28 23:23:48,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions. [2021-04-28 23:23:48,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:48,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions. [2021-04-28 23:23:48,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:48,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 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 23:23:48,599 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 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 23:23:48,599 INFO L185 Difference]: Start difference. First operand has 51 places, 49 transitions, 165 flow. Second operand 4 states and 434 transitions. [2021-04-28 23:23:48,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 276 flow [2021-04-28 23:23:48,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:23:48,602 INFO L241 Difference]: Finished difference. Result has 56 places, 55 transitions, 246 flow [2021-04-28 23:23:48,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2021-04-28 23:23:48,603 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -24 predicate places. [2021-04-28 23:23:48,603 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:48,603 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 55 transitions, 246 flow [2021-04-28 23:23:48,604 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 55 transitions, 246 flow [2021-04-28 23:23:48,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 246 flow [2021-04-28 23:23:48,629 INFO L129 PetriNetUnfolder]: 57/212 cut-off events. [2021-04-28 23:23:48,629 INFO L130 PetriNetUnfolder]: For 148/164 co-relation queries the response was YES. [2021-04-28 23:23:48,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 212 events. 57/212 cut-off events. For 148/164 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1189 event pairs, 6 based on Foata normal form. 2/149 useless extension candidates. Maximal degree in co-relation 504. Up to 62 conditions per place. [2021-04-28 23:23:48,635 INFO L146 LiptonReduction]: Number of co-enabled transitions 1342 [2021-04-28 23:23:48,644 INFO L158 LiptonReduction]: Checked pairs total: 34 [2021-04-28 23:23:48,644 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:48,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-04-28 23:23:48,645 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 246 flow [2021-04-28 23:23:48,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:48,646 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:48,646 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:48,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:23:48,647 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:48,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:48,647 INFO L82 PathProgramCache]: Analyzing trace with hash 436742933, now seen corresponding path program 1 times [2021-04-28 23:23:48,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:48,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258266230] [2021-04-28 23:23:48,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:48,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:48,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:48,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:48,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:48,706 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:23:48,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:23:48,725 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 23:23:48,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258266230] [2021-04-28 23:23:48,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:48,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:23:48,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258520380] [2021-04-28 23:23:48,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:23:48,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:48,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:23:48,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:23:48,729 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:23:48,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:48,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:48,730 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:23:48,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:48,804 INFO L129 PetriNetUnfolder]: 41/200 cut-off events. [2021-04-28 23:23:48,804 INFO L130 PetriNetUnfolder]: For 159/210 co-relation queries the response was YES. [2021-04-28 23:23:48,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 200 events. 41/200 cut-off events. For 159/210 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1169 event pairs, 0 based on Foata normal form. 12/140 useless extension candidates. Maximal degree in co-relation 534. Up to 50 conditions per place. [2021-04-28 23:23:48,807 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 14 selfloop transitions, 8 changer transitions 24/76 dead transitions. [2021-04-28 23:23:48,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 76 transitions, 484 flow [2021-04-28 23:23:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:23:48,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:23:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-04-28 23:23:48,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6452380952380953 [2021-04-28 23:23:48,810 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-04-28 23:23:48,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-04-28 23:23:48,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:48,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-04-28 23:23:48,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 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 23:23:48,815 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 23:23:48,816 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 23:23:48,817 INFO L185 Difference]: Start difference. First operand has 56 places, 55 transitions, 246 flow. Second operand 5 states and 542 transitions. [2021-04-28 23:23:48,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 76 transitions, 484 flow [2021-04-28 23:23:48,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 76 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:23:48,822 INFO L241 Difference]: Finished difference. Result has 61 places, 48 transitions, 220 flow [2021-04-28 23:23:48,822 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2021-04-28 23:23:48,823 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2021-04-28 23:23:48,823 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:48,823 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 48 transitions, 220 flow [2021-04-28 23:23:48,823 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 48 transitions, 220 flow [2021-04-28 23:23:48,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 220 flow [2021-04-28 23:23:48,838 INFO L129 PetriNetUnfolder]: 12/91 cut-off events. [2021-04-28 23:23:48,839 INFO L130 PetriNetUnfolder]: For 88/92 co-relation queries the response was YES. [2021-04-28 23:23:48,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 91 events. 12/91 cut-off events. For 88/92 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 410 event pairs, 2 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 220. Up to 20 conditions per place. [2021-04-28 23:23:48,842 INFO L146 LiptonReduction]: Number of co-enabled transitions 1038 [2021-04-28 23:23:48,848 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-28 23:23:48,848 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:48,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-28 23:23:48,855 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 220 flow [2021-04-28 23:23:48,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:48,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:48,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:48,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:23:48,859 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:48,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:48,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1853575916, now seen corresponding path program 1 times [2021-04-28 23:23:48,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:48,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595710324] [2021-04-28 23:23:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:48,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:48,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:23:48,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:48,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:48,950 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 23:23:48,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595710324] [2021-04-28 23:23:48,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:48,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:23:48,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397694632] [2021-04-28 23:23:48,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:23:48,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:48,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:23:48,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:23:48,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 168 [2021-04-28 23:23:48,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 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 23:23:48,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:48,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 168 [2021-04-28 23:23:48,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:48,985 INFO L129 PetriNetUnfolder]: 10/84 cut-off events. [2021-04-28 23:23:48,985 INFO L130 PetriNetUnfolder]: For 94/98 co-relation queries the response was YES. [2021-04-28 23:23:48,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 84 events. 10/84 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 362 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 218. Up to 17 conditions per place. [2021-04-28 23:23:48,987 INFO L132 encePairwiseOnDemand]: 165/168 looper letters, 8 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2021-04-28 23:23:48,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 49 transitions, 250 flow [2021-04-28 23:23:48,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:23:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:23:48,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2021-04-28 23:23:48,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7718253968253969 [2021-04-28 23:23:48,989 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2021-04-28 23:23:48,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2021-04-28 23:23:48,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:48,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2021-04-28 23:23:48,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 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 23:23:48,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 23:23:48,993 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 23:23:48,994 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 220 flow. Second operand 3 states and 389 transitions. [2021-04-28 23:23:48,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 49 transitions, 250 flow [2021-04-28 23:23:48,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 49 transitions, 228 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-04-28 23:23:48,997 INFO L241 Difference]: Finished difference. Result has 59 places, 48 transitions, 212 flow [2021-04-28 23:23:48,998 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2021-04-28 23:23:48,998 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-04-28 23:23:48,998 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:48,998 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 48 transitions, 212 flow [2021-04-28 23:23:48,999 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 48 transitions, 212 flow [2021-04-28 23:23:48,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 48 transitions, 212 flow [2021-04-28 23:23:49,010 INFO L129 PetriNetUnfolder]: 10/84 cut-off events. [2021-04-28 23:23:49,010 INFO L130 PetriNetUnfolder]: For 64/68 co-relation queries the response was YES. [2021-04-28 23:23:49,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 84 events. 10/84 cut-off events. For 64/68 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 374 event pairs, 1 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 192. Up to 17 conditions per place. [2021-04-28 23:23:49,013 INFO L146 LiptonReduction]: Number of co-enabled transitions 1038 [2021-04-28 23:23:49,020 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-28 23:23:49,020 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:49,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-28 23:23:49,021 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 212 flow [2021-04-28 23:23:49,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 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 23:23:49,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:49,022 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:49,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:23:49,022 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:49,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:49,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1853594175, now seen corresponding path program 1 times [2021-04-28 23:23:49,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:49,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318089300] [2021-04-28 23:23:49,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:49,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:49,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:49,059 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 23:23:49,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318089300] [2021-04-28 23:23:49,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:49,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:23:49,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974740780] [2021-04-28 23:23:49,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:23:49,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:49,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:23:49,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:23:49,065 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 168 [2021-04-28 23:23:49,065 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:49,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:49,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 168 [2021-04-28 23:23:49,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:49,082 INFO L129 PetriNetUnfolder]: 9/82 cut-off events. [2021-04-28 23:23:49,082 INFO L130 PetriNetUnfolder]: For 76/80 co-relation queries the response was YES. [2021-04-28 23:23:49,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 82 events. 9/82 cut-off events. For 76/80 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 353 event pairs, 0 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 191. Up to 17 conditions per place. [2021-04-28 23:23:49,083 INFO L132 encePairwiseOnDemand]: 165/168 looper letters, 1 selfloop transitions, 4 changer transitions 1/48 dead transitions. [2021-04-28 23:23:49,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 48 transitions, 222 flow [2021-04-28 23:23:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:23:49,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:23:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2021-04-28 23:23:49,086 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7341269841269841 [2021-04-28 23:23:49,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2021-04-28 23:23:49,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2021-04-28 23:23:49,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:49,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2021-04-28 23:23:49,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:49,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 23:23:49,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 23:23:49,091 INFO L185 Difference]: Start difference. First operand has 59 places, 48 transitions, 212 flow. Second operand 3 states and 370 transitions. [2021-04-28 23:23:49,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 48 transitions, 222 flow [2021-04-28 23:23:49,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 48 transitions, 209 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-04-28 23:23:49,097 INFO L241 Difference]: Finished difference. Result has 59 places, 47 transitions, 211 flow [2021-04-28 23:23:49,097 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2021-04-28 23:23:49,098 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-04-28 23:23:49,098 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:49,098 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 47 transitions, 211 flow [2021-04-28 23:23:49,098 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 47 transitions, 211 flow [2021-04-28 23:23:49,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 47 transitions, 211 flow [2021-04-28 23:23:49,109 INFO L129 PetriNetUnfolder]: 9/84 cut-off events. [2021-04-28 23:23:49,110 INFO L130 PetriNetUnfolder]: For 51/55 co-relation queries the response was YES. [2021-04-28 23:23:49,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 84 events. 9/84 cut-off events. For 51/55 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 372 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 184. Up to 17 conditions per place. [2021-04-28 23:23:49,113 INFO L146 LiptonReduction]: Number of co-enabled transitions 978 [2021-04-28 23:23:49,119 INFO L158 LiptonReduction]: Checked pairs total: 26 [2021-04-28 23:23:49,119 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:49,120 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-28 23:23:49,122 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 211 flow [2021-04-28 23:23:49,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:49,123 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:49,123 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:49,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:23:49,124 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:49,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:49,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1629899560, now seen corresponding path program 1 times [2021-04-28 23:23:49,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:49,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500073052] [2021-04-28 23:23:49,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:49,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:49,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:23:49,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:49,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:49,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:49,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:49,197 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:23:49,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:23:49,207 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 23:23:49,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500073052] [2021-04-28 23:23:49,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:49,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:23:49,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939438030] [2021-04-28 23:23:49,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:23:49,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:49,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:23:49,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:23:49,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:23:49,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 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 23:23:49,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:49,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:23:49,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:49,262 INFO L129 PetriNetUnfolder]: 8/101 cut-off events. [2021-04-28 23:23:49,263 INFO L130 PetriNetUnfolder]: For 80/94 co-relation queries the response was YES. [2021-04-28 23:23:49,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 101 events. 8/101 cut-off events. For 80/94 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 514 event pairs, 0 based on Foata normal form. 5/63 useless extension candidates. Maximal degree in co-relation 253. Up to 20 conditions per place. [2021-04-28 23:23:49,264 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 5 selfloop transitions, 10 changer transitions 10/54 dead transitions. [2021-04-28 23:23:49,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 321 flow [2021-04-28 23:23:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:23:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:23:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2021-04-28 23:23:49,267 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2021-04-28 23:23:49,268 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 642 transitions. [2021-04-28 23:23:49,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 642 transitions. [2021-04-28 23:23:49,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:49,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 642 transitions. [2021-04-28 23:23:49,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 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 23:23:49,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 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 23:23:49,273 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 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 23:23:49,273 INFO L185 Difference]: Start difference. First operand has 58 places, 47 transitions, 211 flow. Second operand 6 states and 642 transitions. [2021-04-28 23:23:49,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 321 flow [2021-04-28 23:23:49,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:23:49,277 INFO L241 Difference]: Finished difference. Result has 62 places, 44 transitions, 203 flow [2021-04-28 23:23:49,277 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2021-04-28 23:23:49,277 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2021-04-28 23:23:49,278 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:49,278 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 44 transitions, 203 flow [2021-04-28 23:23:49,278 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 44 transitions, 203 flow [2021-04-28 23:23:49,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 44 transitions, 203 flow [2021-04-28 23:23:49,288 INFO L129 PetriNetUnfolder]: 5/75 cut-off events. [2021-04-28 23:23:49,288 INFO L130 PetriNetUnfolder]: For 62/70 co-relation queries the response was YES. [2021-04-28 23:23:49,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 75 events. 5/75 cut-off events. For 62/70 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 318 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 167. Up to 14 conditions per place. [2021-04-28 23:23:49,291 INFO L146 LiptonReduction]: Number of co-enabled transitions 876 [2021-04-28 23:23:49,298 INFO L158 LiptonReduction]: Checked pairs total: 23 [2021-04-28 23:23:49,298 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:49,298 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-28 23:23:49,299 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 203 flow [2021-04-28 23:23:49,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 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 23:23:49,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:49,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:49,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:23:49,300 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:49,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:49,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1435738846, now seen corresponding path program 2 times [2021-04-28 23:23:49,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:49,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114571384] [2021-04-28 23:23:49,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:49,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:49,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:49,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:49,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:49,381 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:23:49,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:23:49,393 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 23:23:49,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114571384] [2021-04-28 23:23:49,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:49,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:23:49,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537823682] [2021-04-28 23:23:49,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:23:49,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:49,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:23:49,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:23:49,397 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:23:49,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 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 23:23:49,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:49,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:23:49,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:49,433 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 23:23:49,433 INFO L130 PetriNetUnfolder]: For 96/114 co-relation queries the response was YES. [2021-04-28 23:23:49,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 78 events. 4/78 cut-off events. For 96/114 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 348 event pairs, 0 based on Foata normal form. 2/45 useless extension candidates. Maximal degree in co-relation 193. Up to 15 conditions per place. [2021-04-28 23:23:49,434 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 4 selfloop transitions, 4 changer transitions 23/46 dead transitions. [2021-04-28 23:23:49,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 46 transitions, 254 flow [2021-04-28 23:23:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:23:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:23:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-04-28 23:23:49,439 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2021-04-28 23:23:49,439 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-04-28 23:23:49,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-04-28 23:23:49,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:49,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-04-28 23:23:49,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 23:23:49,444 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 23:23:49,445 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 23:23:49,445 INFO L185 Difference]: Start difference. First operand has 60 places, 44 transitions, 203 flow. Second operand 5 states and 532 transitions. [2021-04-28 23:23:49,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 46 transitions, 254 flow [2021-04-28 23:23:49,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 46 transitions, 228 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-04-28 23:23:49,449 INFO L241 Difference]: Finished difference. Result has 60 places, 23 transitions, 114 flow [2021-04-28 23:23:49,449 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=60, PETRI_TRANSITIONS=23} [2021-04-28 23:23:49,449 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2021-04-28 23:23:49,449 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:49,450 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 23 transitions, 114 flow [2021-04-28 23:23:49,450 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 23 transitions, 114 flow [2021-04-28 23:23:49,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 23 transitions, 114 flow [2021-04-28 23:23:49,458 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-28 23:23:49,458 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-04-28 23:23:49,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 27 events. 0/27 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-04-28 23:23:49,459 INFO L146 LiptonReduction]: Number of co-enabled transitions 152 [2021-04-28 23:23:49,462 INFO L158 LiptonReduction]: Checked pairs total: 15 [2021-04-28 23:23:49,462 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:49,462 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-04-28 23:23:49,469 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 23 transitions, 114 flow [2021-04-28 23:23:49,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 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 23:23:49,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:49,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:49,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:23:49,470 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:49,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:49,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1398748000, now seen corresponding path program 3 times [2021-04-28 23:23:49,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:49,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218467711] [2021-04-28 23:23:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:49,616 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:23:49,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:23:49,622 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:23:49,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:23:49,628 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 23:23:49,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218467711] [2021-04-28 23:23:49,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:49,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:23:49,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582832057] [2021-04-28 23:23:49,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:23:49,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:49,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:23:49,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:23:49,631 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 168 [2021-04-28 23:23:49,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 23 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 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 23:23:49,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:49,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 168 [2021-04-28 23:23:49,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:49,757 INFO L129 PetriNetUnfolder]: 369/646 cut-off events. [2021-04-28 23:23:49,758 INFO L130 PetriNetUnfolder]: For 599/696 co-relation queries the response was YES. [2021-04-28 23:23:49,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 646 events. 369/646 cut-off events. For 599/696 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 3653 event pairs, 171 based on Foata normal form. 15/267 useless extension candidates. Maximal degree in co-relation 1438. Up to 475 conditions per place. [2021-04-28 23:23:49,761 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 11 selfloop transitions, 7 changer transitions 22/51 dead transitions. [2021-04-28 23:23:49,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 250 flow [2021-04-28 23:23:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:23:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:23:49,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 567 transitions. [2021-04-28 23:23:49,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.675 [2021-04-28 23:23:49,764 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 567 transitions. [2021-04-28 23:23:49,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 567 transitions. [2021-04-28 23:23:49,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:49,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 567 transitions. [2021-04-28 23:23:49,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 0 states have call successors, (0), 0 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 23:23:49,769 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 23:23:49,770 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 23:23:49,770 INFO L185 Difference]: Start difference. First operand has 46 places, 23 transitions, 114 flow. Second operand 5 states and 567 transitions. [2021-04-28 23:23:49,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 250 flow [2021-04-28 23:23:49,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 204 flow, removed 7 selfloop flow, removed 12 redundant places. [2021-04-28 23:23:49,773 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 143 flow [2021-04-28 23:23:49,773 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=143, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-04-28 23:23:49,774 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -39 predicate places. [2021-04-28 23:23:49,774 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:49,774 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 143 flow [2021-04-28 23:23:49,774 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 143 flow [2021-04-28 23:23:49,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 143 flow [2021-04-28 23:23:49,813 INFO L129 PetriNetUnfolder]: 252/456 cut-off events. [2021-04-28 23:23:49,813 INFO L130 PetriNetUnfolder]: For 152/251 co-relation queries the response was YES. [2021-04-28 23:23:49,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 456 events. 252/456 cut-off events. For 152/251 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 2553 event pairs, 144 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 1311. Up to 418 conditions per place. [2021-04-28 23:23:49,818 INFO L146 LiptonReduction]: Number of co-enabled transitions 88 [2021-04-28 23:23:49,976 INFO L158 LiptonReduction]: Checked pairs total: 61 [2021-04-28 23:23:49,976 INFO L160 LiptonReduction]: Total number of compositions: 7 [2021-04-28 23:23:49,976 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 202 [2021-04-28 23:23:49,978 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 164 flow [2021-04-28 23:23:49,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 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 23:23:49,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:49,978 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:49,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:23:49,979 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:49,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:49,979 INFO L82 PathProgramCache]: Analyzing trace with hash -454378487, now seen corresponding path program 1 times [2021-04-28 23:23:49,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:49,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218841507] [2021-04-28 23:23:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:50,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:50,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:50,017 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:23:50,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:23:50,022 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:23:50,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:23:50,030 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 23:23:50,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218841507] [2021-04-28 23:23:50,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:50,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:23:50,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723773947] [2021-04-28 23:23:50,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:23:50,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:50,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:23:50,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:23:50,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2021-04-28 23:23:50,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:50,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:50,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2021-04-28 23:23:50,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:50,171 INFO L129 PetriNetUnfolder]: 207/488 cut-off events. [2021-04-28 23:23:50,171 INFO L130 PetriNetUnfolder]: For 335/434 co-relation queries the response was YES. [2021-04-28 23:23:50,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 488 events. 207/488 cut-off events. For 335/434 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 3221 event pairs, 27 based on Foata normal form. 24/250 useless extension candidates. Maximal degree in co-relation 1988. Up to 442 conditions per place. [2021-04-28 23:23:50,173 INFO L132 encePairwiseOnDemand]: 160/175 looper letters, 5 selfloop transitions, 13 changer transitions 30/58 dead transitions. [2021-04-28 23:23:50,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 440 flow [2021-04-28 23:23:50,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:23:50,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:23:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 684 transitions. [2021-04-28 23:23:50,177 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6514285714285715 [2021-04-28 23:23:50,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 684 transitions. [2021-04-28 23:23:50,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 684 transitions. [2021-04-28 23:23:50,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:50,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 684 transitions. [2021-04-28 23:23:50,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:50,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 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 23:23:50,183 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 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 23:23:50,183 INFO L185 Difference]: Start difference. First operand has 40 places, 30 transitions, 164 flow. Second operand 6 states and 684 transitions. [2021-04-28 23:23:50,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 440 flow [2021-04-28 23:23:50,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 431 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 23:23:50,188 INFO L241 Difference]: Finished difference. Result has 46 places, 28 transitions, 203 flow [2021-04-28 23:23:50,189 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=46, PETRI_TRANSITIONS=28} [2021-04-28 23:23:50,189 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -34 predicate places. [2021-04-28 23:23:50,189 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:50,189 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 28 transitions, 203 flow [2021-04-28 23:23:50,189 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 28 transitions, 203 flow [2021-04-28 23:23:50,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 28 transitions, 203 flow [2021-04-28 23:23:50,212 INFO L129 PetriNetUnfolder]: 36/179 cut-off events. [2021-04-28 23:23:50,212 INFO L130 PetriNetUnfolder]: For 273/303 co-relation queries the response was YES. [2021-04-28 23:23:50,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 835 conditions, 179 events. 36/179 cut-off events. For 273/303 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1233 event pairs, 27 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 821. Up to 142 conditions per place. [2021-04-28 23:23:50,215 INFO L146 LiptonReduction]: Number of co-enabled transitions 60 [2021-04-28 23:23:50,219 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:23:50,220 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:50,220 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-04-28 23:23:50,221 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 203 flow [2021-04-28 23:23:50,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:23:50,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:23:50,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:23:50,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 23:23:50,222 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:23:50,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:23:50,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1022191120, now seen corresponding path program 1 times [2021-04-28 23:23:50,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:23:50,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697470209] [2021-04-28 23:23:50,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:23:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:23:50,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:50,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:50,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:23:50,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:23:50,266 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:23:50,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:23:50,271 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:23:50,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:23:50,280 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 23:23:50,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697470209] [2021-04-28 23:23:50,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:23:50,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:23:50,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424113671] [2021-04-28 23:23:50,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:23:50,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:23:50,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:23:50,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:23:50,283 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2021-04-28 23:23:50,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 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 23:23:50,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:23:50,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2021-04-28 23:23:50,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:23:50,364 INFO L129 PetriNetUnfolder]: 9/134 cut-off events. [2021-04-28 23:23:50,365 INFO L130 PetriNetUnfolder]: For 259/298 co-relation queries the response was YES. [2021-04-28 23:23:50,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 134 events. 9/134 cut-off events. For 259/298 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1004 event pairs, 0 based on Foata normal form. 13/92 useless extension candidates. Maximal degree in co-relation 707. Up to 115 conditions per place. [2021-04-28 23:23:50,365 INFO L132 encePairwiseOnDemand]: 160/175 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2021-04-28 23:23:50,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 31 transitions, 275 flow [2021-04-28 23:23:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:23:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:23:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 764 transitions. [2021-04-28 23:23:50,369 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6236734693877551 [2021-04-28 23:23:50,370 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 764 transitions. [2021-04-28 23:23:50,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 764 transitions. [2021-04-28 23:23:50,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:23:50,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 764 transitions. [2021-04-28 23:23:50,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 0 states have call successors, (0), 0 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 23:23:50,376 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 23:23:50,377 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 23:23:50,377 INFO L185 Difference]: Start difference. First operand has 42 places, 28 transitions, 203 flow. Second operand 7 states and 764 transitions. [2021-04-28 23:23:50,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 31 transitions, 275 flow [2021-04-28 23:23:50,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 211 flow, removed 24 selfloop flow, removed 5 redundant places. [2021-04-28 23:23:50,379 INFO L241 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-04-28 23:23:50,380 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-04-28 23:23:50,380 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -38 predicate places. [2021-04-28 23:23:50,380 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:50,380 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-28 23:23:50,380 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-28 23:23:50,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:23:50,381 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:23:50,381 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:23:50,381 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 23:23:50,381 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:23:50,381 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:23:50,381 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:23:50,382 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:23:50,382 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:23:50,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 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 23:23:50,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 23:23:50,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:23:50 BasicIcfg [2021-04-28 23:23:50,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:23:50,391 INFO L168 Benchmark]: Toolchain (without parser) took 16420.88 ms. Allocated memory was 329.3 MB in the beginning and 501.2 MB in the end (delta: 172.0 MB). Free memory was 304.2 MB in the beginning and 317.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 161.5 MB. Max. memory is 16.0 GB. [2021-04-28 23:23:50,391 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 329.3 MB. Free memory is still 299.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:23:50,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.11 ms. Allocated memory is still 329.3 MB. Free memory was 301.1 MB in the beginning and 307.7 MB in the end (delta: -6.6 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:23:50,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.45 ms. Allocated memory is still 329.3 MB. Free memory was 307.7 MB in the beginning and 305.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:23:50,393 INFO L168 Benchmark]: Boogie Preprocessor took 30.44 ms. Allocated memory is still 329.3 MB. Free memory was 305.6 MB in the beginning and 304.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:23:50,393 INFO L168 Benchmark]: RCFGBuilder took 610.11 ms. Allocated memory is still 329.3 MB. Free memory was 304.5 MB in the beginning and 281.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:23:50,394 INFO L168 Benchmark]: TraceAbstraction took 14805.66 ms. Allocated memory was 329.3 MB in the beginning and 501.2 MB in the end (delta: 172.0 MB). Free memory was 281.5 MB in the beginning and 317.3 MB in the end (delta: -35.9 MB). Peak memory consumption was 139.2 MB. Max. memory is 16.0 GB. [2021-04-28 23:23:50,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 329.3 MB. Free memory is still 299.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 830.11 ms. Allocated memory is still 329.3 MB. Free memory was 301.1 MB in the beginning and 307.7 MB in the end (delta: -6.6 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 93.45 ms. Allocated memory is still 329.3 MB. Free memory was 307.7 MB in the beginning and 305.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.44 ms. Allocated memory is still 329.3 MB. Free memory was 305.6 MB in the beginning and 304.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 610.11 ms. Allocated memory is still 329.3 MB. Free memory was 304.5 MB in the beginning and 281.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14805.66 ms. Allocated memory was 329.3 MB in the beginning and 501.2 MB in the end (delta: 172.0 MB). Free memory was 281.5 MB in the beginning and 317.3 MB in the end (delta: -35.9 MB). Peak memory consumption was 139.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11439.9ms, 68 PlacesBefore, 80 PlacesAfterwards, 59 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 94 TotalNumberOfCompositions, 6642 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1549, positive: 1349, positive conditional: 1349, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 860, positive: 810, positive conditional: 0, positive unconditional: 810, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 860, positive: 810, positive conditional: 0, positive unconditional: 810, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 860, positive: 788, positive conditional: 0, positive unconditional: 788, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 395, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 263, negative conditional: 0, negative unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1549, positive: 539, positive conditional: 539, positive unconditional: 0, negative: 150, negative conditional: 150, negative unconditional: 0, unknown: 860, unknown conditional: 860, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 850, Positive cache size: 800, Positive conditional cache size: 800, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.8ms, 81 PlacesBefore, 50 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 2, 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: 6, positive: 6, positive conditional: 2, 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: 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: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 856, Positive cache size: 806, Positive conditional cache size: 806, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.2ms, 51 PlacesBefore, 51 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, 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: 3, positive: 2, positive conditional: 2, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 859, Positive cache size: 808, Positive conditional cache size: 808, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.1ms, 56 PlacesBefore, 56 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1342 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 861, Positive cache size: 810, Positive conditional cache size: 810, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.3ms, 61 PlacesBefore, 60 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1038 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 862, Positive cache size: 811, Positive conditional cache size: 811, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.2ms, 59 PlacesBefore, 59 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1038 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 864, Positive cache size: 813, Positive conditional cache size: 813, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.1ms, 59 PlacesBefore, 58 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 978 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 865, Positive cache size: 814, Positive conditional cache size: 814, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.3ms, 62 PlacesBefore, 60 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 868, Positive cache size: 817, Positive conditional cache size: 817, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4ms, 60 PlacesBefore, 46 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 869, Positive cache size: 818, Positive conditional cache size: 818, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 201.8ms, 41 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 30 TransitionsAfterwards, 88 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 61 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 61, positive conditional: 61, 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: 29, positive: 29, positive conditional: 22, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 22, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 61, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 29, unknown conditional: 29, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.2ms, 46 PlacesBefore, 42 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 60 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): 898, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0ms, 42 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): 898, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14675.7ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1220.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11586.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 89 SDtfs, 55 SDslu, 31 SDs, 0 SdLazy, 280 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 293.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 166.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred in iteration=3, InterpolantAutomatonStates: 50, 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: 34.8ms SsaConstructionTime, 261.5ms SatisfiabilityAnalysisTime, 772.1ms InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 538 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...