/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:56:39,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:56:39,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:56:39,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:56:39,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:56:39,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:56:39,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:56:39,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:56:39,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:56:39,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:56:39,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:56:39,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:56:39,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:56:39,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:56:39,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:56:39,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:56:39,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:56:39,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:56:39,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:56:39,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:56:39,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:56:39,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:56:39,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:56:39,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:56:39,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 14:56:39,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 14:56:39,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 14:56:39,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 14:56:39,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 14:56:39,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 14:56:39,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 14:56:39,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 14:56:39,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 14:56:39,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 14:56:39,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 14:56:39,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 14:56:39,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 14:56:39,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 14:56:39,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:56:39,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:56:39,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:56:39,578 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-RepeatedSemanticLbe.epf [2021-03-25 14:56:39,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:56:39,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:56:39,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:56:39,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:56:39,609 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:56:39,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:56:39,610 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:56:39,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:56:39,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:56:39,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:56:39,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:56:39,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:56:39,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:56:39,612 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:56:39,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:56:39,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:56:39,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:56:39,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:56:39,894 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:56:39,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-03-25 14:56:39,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb146f07/de7ad33324ef4107936f2bea608677e4/FLAGf9f1c2dde [2021-03-25 14:56:40,391 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:56:40,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-03-25 14:56:40,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb146f07/de7ad33324ef4107936f2bea608677e4/FLAGf9f1c2dde [2021-03-25 14:56:40,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb146f07/de7ad33324ef4107936f2bea608677e4 [2021-03-25 14:56:40,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:56:40,413 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:56:40,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:56:40,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:56:40,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:56:40,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216caf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40, skipping insertion in model container [2021-03-25 14:56:40,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:56:40,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:56:40,556 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/safe019_tso.oepc.i[950,963] [2021-03-25 14:56:40,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:56:40,722 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:56:40,731 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/safe019_tso.oepc.i[950,963] [2021-03-25 14:56:40,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:56:40,812 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:56:40,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40 WrapperNode [2021-03-25 14:56:40,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:56:40,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:56:40,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:56:40,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:56:40,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:56:40,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:56:40,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:56:40,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:56:40,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... [2021-03-25 14:56:40,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:56:40,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:56:40,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:56:40,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:56:40,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:56:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:56:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:56:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:56:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:56:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:56:41,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:56:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:56:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:56:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 14:56:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 14:56:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 14:56:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 14:56:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:56:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:56:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:56:41,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:56:41,015 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:56:41,309 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:56:41,309 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 14:56:41,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:56:41 BoogieIcfgContainer [2021-03-25 14:56:41,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:56:41,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:56:41,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:56:41,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:56:41,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:56:40" (1/3) ... [2021-03-25 14:56:41,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332804fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:56:41, skipping insertion in model container [2021-03-25 14:56:41,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:56:40" (2/3) ... [2021-03-25 14:56:41,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332804fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:56:41, skipping insertion in model container [2021-03-25 14:56:41,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:56:41" (3/3) ... [2021-03-25 14:56:41,316 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-03-25 14:56:41,320 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:56:41,323 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 14:56:41,324 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:56:41,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,349 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,349 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,349 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,349 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,350 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,351 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,353 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,353 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,353 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,353 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,357 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,357 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,357 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,357 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,359 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,359 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,359 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,360 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,360 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,361 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,361 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:56:41,362 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:56:41,374 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 14:56:41,388 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:56:41,388 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:56:41,388 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:56:41,388 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:56:41,388 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:56:41,388 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:56:41,388 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:56:41,388 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:56:41,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-03-25 14:56:41,420 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-25 14:56:41,421 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:56:41,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-25 14:56:41,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-03-25 14:56:41,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-03-25 14:56:41,427 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:41,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-25 14:56:41,438 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-25 14:56:41,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-03-25 14:56:41,450 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-03-25 14:56:41,450 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:56:41,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-25 14:56:41,453 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-25 14:56:42,765 INFO L154 LiptonReduction]: Checked pairs total: 1269 [2021-03-25 14:56:42,765 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-25 14:56:42,767 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1340 [2021-03-25 14:56:42,774 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 14:56:42,775 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:56:42,775 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:42,775 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:42,776 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:42,779 INFO L82 PathProgramCache]: Analyzing trace with hash 2002329809, now seen corresponding path program 1 times [2021-03-25 14:56:42,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:42,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593508448] [2021-03-25 14:56:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:42,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:42,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:42,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:42,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:42,943 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:56:42,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:56:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:42,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593508448] [2021-03-25 14:56:42,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:42,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:42,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764350975] [2021-03-25 14:56:42,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:42,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:42,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:42,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:42,971 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 129 [2021-03-25 14:56:42,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:42,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:42,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 129 [2021-03-25 14:56:42,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:43,005 INFO L129 PetriNetUnfolder]: 36/115 cut-off events. [2021-03-25 14:56:43,005 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:56:43,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 115 events. 36/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 460 event pairs, 24 based on Foata normal form. 5/109 useless extension candidates. Maximal degree in co-relation 188. Up to 59 conditions per place. [2021-03-25 14:56:43,007 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 9 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2021-03-25 14:56:43,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 100 flow [2021-03-25 14:56:43,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:56:43,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:56:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-25 14:56:43,017 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8372093023255814 [2021-03-25 14:56:43,017 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-25 14:56:43,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-25 14:56:43,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:43,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-25 14:56:43,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:43,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:43,028 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:43,029 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 4 states and 432 transitions. [2021-03-25 14:56:43,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 100 flow [2021-03-25 14:56:43,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 96 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 14:56:43,033 INFO L241 Difference]: Finished difference. Result has 40 places, 28 transitions, 94 flow [2021-03-25 14:56:43,034 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2021-03-25 14:56:43,034 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-25 14:56:43,034 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:43,034 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 28 transitions, 94 flow [2021-03-25 14:56:43,035 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 28 transitions, 94 flow [2021-03-25 14:56:43,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 28 transitions, 94 flow [2021-03-25 14:56:43,041 INFO L129 PetriNetUnfolder]: 19/82 cut-off events. [2021-03-25 14:56:43,041 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2021-03-25 14:56:43,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 82 events. 19/82 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 319 event pairs, 10 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 153. Up to 34 conditions per place. [2021-03-25 14:56:43,042 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-25 14:56:43,465 INFO L154 LiptonReduction]: Checked pairs total: 278 [2021-03-25 14:56:43,465 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 14:56:43,465 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 431 [2021-03-25 14:56:43,466 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 86 flow [2021-03-25 14:56:43,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:43,466 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:43,467 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:43,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:56:43,467 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:43,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:43,467 INFO L82 PathProgramCache]: Analyzing trace with hash 233500185, now seen corresponding path program 1 times [2021-03-25 14:56:43,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:43,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207915653] [2021-03-25 14:56:43,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:43,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:43,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:43,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:43,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:43,562 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:56:43,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:56:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:43,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207915653] [2021-03-25 14:56:43,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:43,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:43,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516508295] [2021-03-25 14:56:43,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:43,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:43,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:43,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:43,577 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2021-03-25 14:56:43,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:43,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:43,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2021-03-25 14:56:43,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:43,615 INFO L129 PetriNetUnfolder]: 28/99 cut-off events. [2021-03-25 14:56:43,616 INFO L130 PetriNetUnfolder]: For 61/101 co-relation queries the response was YES. [2021-03-25 14:56:43,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 99 events. 28/99 cut-off events. For 61/101 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 392 event pairs, 7 based on Foata normal form. 4/96 useless extension candidates. Maximal degree in co-relation 251. Up to 46 conditions per place. [2021-03-25 14:56:43,617 INFO L132 encePairwiseOnDemand]: 125/133 looper letters, 7 selfloop transitions, 9 changer transitions 0/29 dead transitions. [2021-03-25 14:56:43,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 142 flow [2021-03-25 14:56:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:56:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:56:43,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 435 transitions. [2021-03-25 14:56:43,624 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8176691729323309 [2021-03-25 14:56:43,624 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 435 transitions. [2021-03-25 14:56:43,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 435 transitions. [2021-03-25 14:56:43,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:43,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 435 transitions. [2021-03-25 14:56:43,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:43,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:43,631 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:43,631 INFO L185 Difference]: Start difference. First operand has 36 places, 24 transitions, 86 flow. Second operand 4 states and 435 transitions. [2021-03-25 14:56:43,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 142 flow [2021-03-25 14:56:43,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:56:43,634 INFO L241 Difference]: Finished difference. Result has 40 places, 26 transitions, 127 flow [2021-03-25 14:56:43,634 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2021-03-25 14:56:43,634 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-25 14:56:43,634 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:43,634 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 26 transitions, 127 flow [2021-03-25 14:56:43,635 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 26 transitions, 127 flow [2021-03-25 14:56:43,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 26 transitions, 127 flow [2021-03-25 14:56:43,648 INFO L129 PetriNetUnfolder]: 21/81 cut-off events. [2021-03-25 14:56:43,648 INFO L130 PetriNetUnfolder]: For 79/87 co-relation queries the response was YES. [2021-03-25 14:56:43,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 81 events. 21/81 cut-off events. For 79/87 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 308 event pairs, 12 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 216. Up to 35 conditions per place. [2021-03-25 14:56:43,651 INFO L142 LiptonReduction]: Number of co-enabled transitions 216 [2021-03-25 14:56:43,796 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-25 14:56:43,982 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-25 14:56:44,036 INFO L154 LiptonReduction]: Checked pairs total: 234 [2021-03-25 14:56:44,036 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:56:44,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 402 [2021-03-25 14:56:44,037 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 123 flow [2021-03-25 14:56:44,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,037 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,037 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:56:44,038 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,038 INFO L82 PathProgramCache]: Analyzing trace with hash -466507060, now seen corresponding path program 1 times [2021-03-25 14:56:44,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970064574] [2021-03-25 14:56:44,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:44,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:44,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,072 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:56:44,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:56:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:44,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970064574] [2021-03-25 14:56:44,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:44,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:44,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099190254] [2021-03-25 14:56:44,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:44,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:44,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:44,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:44,085 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2021-03-25 14:56:44,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:44,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2021-03-25 14:56:44,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:44,151 INFO L129 PetriNetUnfolder]: 107/248 cut-off events. [2021-03-25 14:56:44,151 INFO L130 PetriNetUnfolder]: For 403/618 co-relation queries the response was YES. [2021-03-25 14:56:44,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 248 events. 107/248 cut-off events. For 403/618 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1186 event pairs, 14 based on Foata normal form. 10/248 useless extension candidates. Maximal degree in co-relation 804. Up to 88 conditions per place. [2021-03-25 14:56:44,155 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 14 selfloop transitions, 23 changer transitions 0/49 dead transitions. [2021-03-25 14:56:44,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 354 flow [2021-03-25 14:56:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:44,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-03-25 14:56:44,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7940298507462686 [2021-03-25 14:56:44,157 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-03-25 14:56:44,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-03-25 14:56:44,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:44,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-03-25 14:56:44,159 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) [2021-03-25 14:56:44,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,160 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,160 INFO L185 Difference]: Start difference. First operand has 39 places, 25 transitions, 123 flow. Second operand 5 states and 532 transitions. [2021-03-25 14:56:44,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 354 flow [2021-03-25 14:56:44,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 326 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 14:56:44,165 INFO L241 Difference]: Finished difference. Result has 45 places, 42 transitions, 330 flow [2021-03-25 14:56:44,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2021-03-25 14:56:44,165 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2021-03-25 14:56:44,166 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:44,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 42 transitions, 330 flow [2021-03-25 14:56:44,169 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 42 transitions, 330 flow [2021-03-25 14:56:44,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 42 transitions, 330 flow [2021-03-25 14:56:44,185 INFO L129 PetriNetUnfolder]: 84/221 cut-off events. [2021-03-25 14:56:44,185 INFO L130 PetriNetUnfolder]: For 521/709 co-relation queries the response was YES. [2021-03-25 14:56:44,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 221 events. 84/221 cut-off events. For 521/709 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1153 event pairs, 13 based on Foata normal form. 2/213 useless extension candidates. Maximal degree in co-relation 870. Up to 93 conditions per place. [2021-03-25 14:56:44,189 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-25 14:56:44,217 INFO L154 LiptonReduction]: Checked pairs total: 226 [2021-03-25 14:56:44,217 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:44,218 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-25 14:56:44,223 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 330 flow [2021-03-25 14:56:44,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,224 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:56:44,224 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1816077954, now seen corresponding path program 1 times [2021-03-25 14:56:44,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400660551] [2021-03-25 14:56:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:44,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,264 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:56:44,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:56:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:44,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400660551] [2021-03-25 14:56:44,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:44,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:56:44,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161804746] [2021-03-25 14:56:44,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:44,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:44,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:44,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:44,272 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 134 [2021-03-25 14:56:44,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:44,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 134 [2021-03-25 14:56:44,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:44,296 INFO L129 PetriNetUnfolder]: 61/181 cut-off events. [2021-03-25 14:56:44,296 INFO L130 PetriNetUnfolder]: For 558/892 co-relation queries the response was YES. [2021-03-25 14:56:44,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 181 events. 61/181 cut-off events. For 558/892 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 921 event pairs, 2 based on Foata normal form. 6/177 useless extension candidates. Maximal degree in co-relation 767. Up to 66 conditions per place. [2021-03-25 14:56:44,298 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 19 selfloop transitions, 23 changer transitions 0/56 dead transitions. [2021-03-25 14:56:44,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 56 transitions, 551 flow [2021-03-25 14:56:44,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:56:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:56:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 436 transitions. [2021-03-25 14:56:44,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8134328358208955 [2021-03-25 14:56:44,301 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 436 transitions. [2021-03-25 14:56:44,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 436 transitions. [2021-03-25 14:56:44,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:44,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 436 transitions. [2021-03-25 14:56:44,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,303 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,303 INFO L185 Difference]: Start difference. First operand has 45 places, 42 transitions, 330 flow. Second operand 4 states and 436 transitions. [2021-03-25 14:56:44,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 56 transitions, 551 flow [2021-03-25 14:56:44,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 551 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 14:56:44,306 INFO L241 Difference]: Finished difference. Result has 49 places, 48 transitions, 455 flow [2021-03-25 14:56:44,306 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=455, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2021-03-25 14:56:44,306 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2021-03-25 14:56:44,306 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:44,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 48 transitions, 455 flow [2021-03-25 14:56:44,307 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 48 transitions, 455 flow [2021-03-25 14:56:44,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 48 transitions, 455 flow [2021-03-25 14:56:44,318 INFO L129 PetriNetUnfolder]: 62/187 cut-off events. [2021-03-25 14:56:44,318 INFO L130 PetriNetUnfolder]: For 566/643 co-relation queries the response was YES. [2021-03-25 14:56:44,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 187 events. 62/187 cut-off events. For 566/643 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 970 event pairs, 10 based on Foata normal form. 2/184 useless extension candidates. Maximal degree in co-relation 792. Up to 70 conditions per place. [2021-03-25 14:56:44,321 INFO L142 LiptonReduction]: Number of co-enabled transitions 386 [2021-03-25 14:56:44,329 INFO L154 LiptonReduction]: Checked pairs total: 366 [2021-03-25 14:56:44,329 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:44,329 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 14:56:44,331 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 455 flow [2021-03-25 14:56:44,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,331 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:56:44,333 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1542198525, now seen corresponding path program 1 times [2021-03-25 14:56:44,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159086409] [2021-03-25 14:56:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:44,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,382 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:56:44,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:56:44,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:44,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159086409] [2021-03-25 14:56:44,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:44,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:44,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260949401] [2021-03-25 14:56:44,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:56:44,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:44,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:56:44,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:56:44,408 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2021-03-25 14:56:44,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 455 flow. Second operand has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:44,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2021-03-25 14:56:44,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:44,443 INFO L129 PetriNetUnfolder]: 83/231 cut-off events. [2021-03-25 14:56:44,443 INFO L130 PetriNetUnfolder]: For 1224/1783 co-relation queries the response was YES. [2021-03-25 14:56:44,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 231 events. 83/231 cut-off events. For 1224/1783 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1255 event pairs, 4 based on Foata normal form. 22/246 useless extension candidates. Maximal degree in co-relation 1138. Up to 85 conditions per place. [2021-03-25 14:56:44,445 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 15 selfloop transitions, 13 changer transitions 28/68 dead transitions. [2021-03-25 14:56:44,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 68 transitions, 810 flow [2021-03-25 14:56:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:44,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 527 transitions. [2021-03-25 14:56:44,446 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7865671641791044 [2021-03-25 14:56:44,446 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 527 transitions. [2021-03-25 14:56:44,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 527 transitions. [2021-03-25 14:56:44,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:44,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 527 transitions. [2021-03-25 14:56:44,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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) [2021-03-25 14:56:44,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,449 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,449 INFO L185 Difference]: Start difference. First operand has 49 places, 48 transitions, 455 flow. Second operand 5 states and 527 transitions. [2021-03-25 14:56:44,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 68 transitions, 810 flow [2021-03-25 14:56:44,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 780 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:56:44,452 INFO L241 Difference]: Finished difference. Result has 54 places, 34 transitions, 313 flow [2021-03-25 14:56:44,452 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=313, PETRI_PLACES=54, PETRI_TRANSITIONS=34} [2021-03-25 14:56:44,453 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2021-03-25 14:56:44,453 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:44,453 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 34 transitions, 313 flow [2021-03-25 14:56:44,453 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 34 transitions, 313 flow [2021-03-25 14:56:44,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 34 transitions, 313 flow [2021-03-25 14:56:44,459 INFO L129 PetriNetUnfolder]: 26/95 cut-off events. [2021-03-25 14:56:44,460 INFO L130 PetriNetUnfolder]: For 411/486 co-relation queries the response was YES. [2021-03-25 14:56:44,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 95 events. 26/95 cut-off events. For 411/486 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 392 event pairs, 6 based on Foata normal form. 2/93 useless extension candidates. Maximal degree in co-relation 435. Up to 50 conditions per place. [2021-03-25 14:56:44,461 INFO L142 LiptonReduction]: Number of co-enabled transitions 250 [2021-03-25 14:56:44,462 INFO L154 LiptonReduction]: Checked pairs total: 158 [2021-03-25 14:56:44,463 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:44,463 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 14:56:44,463 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 34 transitions, 313 flow [2021-03-25 14:56:44,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,464 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,464 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:56:44,464 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,464 INFO L82 PathProgramCache]: Analyzing trace with hash 318477127, now seen corresponding path program 1 times [2021-03-25 14:56:44,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784693639] [2021-03-25 14:56:44,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:44,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:44,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784693639] [2021-03-25 14:56:44,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:44,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:56:44,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319913245] [2021-03-25 14:56:44,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:44,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:44,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:44,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:44,509 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 134 [2021-03-25 14:56:44,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 34 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:44,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 134 [2021-03-25 14:56:44,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:44,540 INFO L129 PetriNetUnfolder]: 24/104 cut-off events. [2021-03-25 14:56:44,541 INFO L130 PetriNetUnfolder]: For 669/740 co-relation queries the response was YES. [2021-03-25 14:56:44,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 104 events. 24/104 cut-off events. For 669/740 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 477 event pairs, 11 based on Foata normal form. 7/108 useless extension candidates. Maximal degree in co-relation 512. Up to 54 conditions per place. [2021-03-25 14:56:44,541 INFO L132 encePairwiseOnDemand]: 129/134 looper letters, 5 selfloop transitions, 7 changer transitions 7/37 dead transitions. [2021-03-25 14:56:44,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 37 transitions, 389 flow [2021-03-25 14:56:44,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:56:44,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:56:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2021-03-25 14:56:44,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8563432835820896 [2021-03-25 14:56:44,550 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2021-03-25 14:56:44,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2021-03-25 14:56:44,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:44,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2021-03-25 14:56:44,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,553 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,553 INFO L185 Difference]: Start difference. First operand has 54 places, 34 transitions, 313 flow. Second operand 4 states and 459 transitions. [2021-03-25 14:56:44,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 37 transitions, 389 flow [2021-03-25 14:56:44,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 37 transitions, 315 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-25 14:56:44,555 INFO L241 Difference]: Finished difference. Result has 50 places, 30 transitions, 225 flow [2021-03-25 14:56:44,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=50, PETRI_TRANSITIONS=30} [2021-03-25 14:56:44,555 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-25 14:56:44,556 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:44,556 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 30 transitions, 225 flow [2021-03-25 14:56:44,556 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 30 transitions, 225 flow [2021-03-25 14:56:44,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 30 transitions, 225 flow [2021-03-25 14:56:44,561 INFO L129 PetriNetUnfolder]: 14/71 cut-off events. [2021-03-25 14:56:44,561 INFO L130 PetriNetUnfolder]: For 168/170 co-relation queries the response was YES. [2021-03-25 14:56:44,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 71 events. 14/71 cut-off events. For 168/170 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 265 event pairs, 4 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 271. Up to 34 conditions per place. [2021-03-25 14:56:44,562 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-25 14:56:44,563 INFO L154 LiptonReduction]: Checked pairs total: 94 [2021-03-25 14:56:44,563 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:44,563 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 14:56:44,564 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 30 transitions, 225 flow [2021-03-25 14:56:44,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:56:44,564 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,565 INFO L82 PathProgramCache]: Analyzing trace with hash 79180347, now seen corresponding path program 2 times [2021-03-25 14:56:44,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385647169] [2021-03-25 14:56:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:44,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:44,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:44,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385647169] [2021-03-25 14:56:44,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:44,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:56:44,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016581382] [2021-03-25 14:56:44,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:56:44,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:44,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:56:44,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:56:44,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-25 14:56:44,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 30 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:44,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-25 14:56:44,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:44,621 INFO L129 PetriNetUnfolder]: 185/363 cut-off events. [2021-03-25 14:56:44,621 INFO L130 PetriNetUnfolder]: For 614/659 co-relation queries the response was YES. [2021-03-25 14:56:44,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 363 events. 185/363 cut-off events. For 614/659 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 1894 event pairs, 88 based on Foata normal form. 2/315 useless extension candidates. Maximal degree in co-relation 1050. Up to 276 conditions per place. [2021-03-25 14:56:44,624 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 5 changer transitions 0/34 dead transitions. [2021-03-25 14:56:44,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 34 transitions, 253 flow [2021-03-25 14:56:44,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:56:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:56:44,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2021-03-25 14:56:44,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8482587064676617 [2021-03-25 14:56:44,625 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2021-03-25 14:56:44,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2021-03-25 14:56:44,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:44,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2021-03-25 14:56:44,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,627 INFO L185 Difference]: Start difference. First operand has 50 places, 30 transitions, 225 flow. Second operand 3 states and 341 transitions. [2021-03-25 14:56:44,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 34 transitions, 253 flow [2021-03-25 14:56:44,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 34 transitions, 206 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-25 14:56:44,629 INFO L241 Difference]: Finished difference. Result has 48 places, 34 transitions, 211 flow [2021-03-25 14:56:44,629 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2021-03-25 14:56:44,629 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-25 14:56:44,629 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:44,630 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 34 transitions, 211 flow [2021-03-25 14:56:44,630 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 34 transitions, 211 flow [2021-03-25 14:56:44,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 34 transitions, 211 flow [2021-03-25 14:56:44,647 INFO L129 PetriNetUnfolder]: 179/347 cut-off events. [2021-03-25 14:56:44,648 INFO L130 PetriNetUnfolder]: For 276/315 co-relation queries the response was YES. [2021-03-25 14:56:44,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 347 events. 179/347 cut-off events. For 276/315 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 1822 event pairs, 83 based on Foata normal form. 1/311 useless extension candidates. Maximal degree in co-relation 889. Up to 269 conditions per place. [2021-03-25 14:56:44,651 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-25 14:56:44,652 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:44,652 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:44,653 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-25 14:56:44,653 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 211 flow [2021-03-25 14:56:44,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,654 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,654 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:56:44,654 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1604157359, now seen corresponding path program 1 times [2021-03-25 14:56:44,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707677929] [2021-03-25 14:56:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:44,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:44,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,678 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:56:44,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:56:44,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:44,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707677929] [2021-03-25 14:56:44,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:44,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:44,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102898448] [2021-03-25 14:56:44,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:44,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:44,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:44,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:44,686 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 134 [2021-03-25 14:56:44,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 34 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:44,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 134 [2021-03-25 14:56:44,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:44,723 INFO L129 PetriNetUnfolder]: 210/408 cut-off events. [2021-03-25 14:56:44,723 INFO L130 PetriNetUnfolder]: For 615/710 co-relation queries the response was YES. [2021-03-25 14:56:44,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 408 events. 210/408 cut-off events. For 615/710 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 2222 event pairs, 107 based on Foata normal form. 26/374 useless extension candidates. Maximal degree in co-relation 1074. Up to 333 conditions per place. [2021-03-25 14:56:44,726 INFO L132 encePairwiseOnDemand]: 129/134 looper letters, 8 selfloop transitions, 9 changer transitions 0/35 dead transitions. [2021-03-25 14:56:44,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 35 transitions, 251 flow [2021-03-25 14:56:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:56:44,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:56:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2021-03-25 14:56:44,728 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8078358208955224 [2021-03-25 14:56:44,728 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2021-03-25 14:56:44,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2021-03-25 14:56:44,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:44,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2021-03-25 14:56:44,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,730 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,730 INFO L185 Difference]: Start difference. First operand has 48 places, 34 transitions, 211 flow. Second operand 4 states and 433 transitions. [2021-03-25 14:56:44,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 35 transitions, 251 flow [2021-03-25 14:56:44,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 35 transitions, 242 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 14:56:44,733 INFO L241 Difference]: Finished difference. Result has 50 places, 34 transitions, 227 flow [2021-03-25 14:56:44,733 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2021-03-25 14:56:44,734 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-25 14:56:44,734 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:44,734 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 34 transitions, 227 flow [2021-03-25 14:56:44,734 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 34 transitions, 227 flow [2021-03-25 14:56:44,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 34 transitions, 227 flow [2021-03-25 14:56:44,753 INFO L129 PetriNetUnfolder]: 190/369 cut-off events. [2021-03-25 14:56:44,754 INFO L130 PetriNetUnfolder]: For 406/450 co-relation queries the response was YES. [2021-03-25 14:56:44,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 369 events. 190/369 cut-off events. For 406/450 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 1961 event pairs, 100 based on Foata normal form. 3/322 useless extension candidates. Maximal degree in co-relation 924. Up to 302 conditions per place. [2021-03-25 14:56:44,757 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-25 14:56:44,759 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:44,759 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:44,759 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 14:56:44,762 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 227 flow [2021-03-25 14:56:44,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,762 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,764 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 14:56:44,764 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1156175389, now seen corresponding path program 1 times [2021-03-25 14:56:44,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912216019] [2021-03-25 14:56:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:44,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:44,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912216019] [2021-03-25 14:56:44,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:44,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:44,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109727943] [2021-03-25 14:56:44,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:44,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:44,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:44,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:44,805 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-25 14:56:44,806 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 34 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:44,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-25 14:56:44,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:44,839 INFO L129 PetriNetUnfolder]: 145/313 cut-off events. [2021-03-25 14:56:44,839 INFO L130 PetriNetUnfolder]: For 465/756 co-relation queries the response was YES. [2021-03-25 14:56:44,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 313 events. 145/313 cut-off events. For 465/756 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1577 event pairs, 34 based on Foata normal form. 55/343 useless extension candidates. Maximal degree in co-relation 1050. Up to 249 conditions per place. [2021-03-25 14:56:44,841 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 9 changer transitions 0/38 dead transitions. [2021-03-25 14:56:44,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 38 transitions, 271 flow [2021-03-25 14:56:44,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:56:44,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:56:44,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-03-25 14:56:44,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8488805970149254 [2021-03-25 14:56:44,843 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-03-25 14:56:44,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-03-25 14:56:44,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:44,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-03-25 14:56:44,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,845 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,845 INFO L185 Difference]: Start difference. First operand has 50 places, 34 transitions, 227 flow. Second operand 4 states and 455 transitions. [2021-03-25 14:56:44,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 38 transitions, 271 flow [2021-03-25 14:56:44,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 38 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 14:56:44,849 INFO L241 Difference]: Finished difference. Result has 53 places, 38 transitions, 268 flow [2021-03-25 14:56:44,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=53, PETRI_TRANSITIONS=38} [2021-03-25 14:56:44,849 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2021-03-25 14:56:44,849 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:44,849 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 38 transitions, 268 flow [2021-03-25 14:56:44,850 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 38 transitions, 268 flow [2021-03-25 14:56:44,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 38 transitions, 268 flow [2021-03-25 14:56:44,864 INFO L129 PetriNetUnfolder]: 130/282 cut-off events. [2021-03-25 14:56:44,864 INFO L130 PetriNetUnfolder]: For 448/658 co-relation queries the response was YES. [2021-03-25 14:56:44,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 282 events. 130/282 cut-off events. For 448/658 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1455 event pairs, 33 based on Foata normal form. 5/267 useless extension candidates. Maximal degree in co-relation 993. Up to 219 conditions per place. [2021-03-25 14:56:44,867 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-25 14:56:44,869 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:44,869 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:44,869 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 14:56:44,870 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 38 transitions, 268 flow [2021-03-25 14:56:44,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,870 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,870 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 14:56:44,870 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,871 INFO L82 PathProgramCache]: Analyzing trace with hash 7023956, now seen corresponding path program 1 times [2021-03-25 14:56:44,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942311883] [2021-03-25 14:56:44,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:44,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:44,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:44,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:44,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942311883] [2021-03-25 14:56:44,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:44,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:56:44,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789573351] [2021-03-25 14:56:44,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:56:44,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:44,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:56:44,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:56:44,915 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-25 14:56:44,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 38 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:44,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-25 14:56:44,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:44,952 INFO L129 PetriNetUnfolder]: 88/207 cut-off events. [2021-03-25 14:56:44,953 INFO L130 PetriNetUnfolder]: For 402/953 co-relation queries the response was YES. [2021-03-25 14:56:44,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 207 events. 88/207 cut-off events. For 402/953 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 914 event pairs, 5 based on Foata normal form. 106/296 useless extension candidates. Maximal degree in co-relation 883. Up to 163 conditions per place. [2021-03-25 14:56:44,954 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2021-03-25 14:56:44,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 328 flow [2021-03-25 14:56:44,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:44,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2021-03-25 14:56:44,955 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492537313432836 [2021-03-25 14:56:44,955 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2021-03-25 14:56:44,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2021-03-25 14:56:44,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:44,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2021-03-25 14:56:44,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,958 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,958 INFO L185 Difference]: Start difference. First operand has 53 places, 38 transitions, 268 flow. Second operand 5 states and 569 transitions. [2021-03-25 14:56:44,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 328 flow [2021-03-25 14:56:44,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 42 transitions, 303 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-25 14:56:44,959 INFO L241 Difference]: Finished difference. Result has 55 places, 42 transitions, 311 flow [2021-03-25 14:56:44,960 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2021-03-25 14:56:44,960 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places. [2021-03-25 14:56:44,960 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:44,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 42 transitions, 311 flow [2021-03-25 14:56:44,961 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 42 transitions, 311 flow [2021-03-25 14:56:44,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 42 transitions, 311 flow [2021-03-25 14:56:44,973 INFO L129 PetriNetUnfolder]: 84/195 cut-off events. [2021-03-25 14:56:44,973 INFO L130 PetriNetUnfolder]: For 381/482 co-relation queries the response was YES. [2021-03-25 14:56:44,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 195 events. 84/195 cut-off events. For 381/482 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 917 event pairs, 4 based on Foata normal form. 14/196 useless extension candidates. Maximal degree in co-relation 771. Up to 138 conditions per place. [2021-03-25 14:56:44,975 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 14:56:44,977 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:44,977 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:44,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 14:56:44,979 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 311 flow [2021-03-25 14:56:44,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:44,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:44,980 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:44,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 14:56:44,980 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:44,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:44,980 INFO L82 PathProgramCache]: Analyzing trace with hash 280052441, now seen corresponding path program 1 times [2021-03-25 14:56:44,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:44,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973790750] [2021-03-25 14:56:44,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:45,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:45,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:45,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:45,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973790750] [2021-03-25 14:56:45,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:45,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:45,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62272767] [2021-03-25 14:56:45,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:45,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:45,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:45,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:45,025 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 134 [2021-03-25 14:56:45,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:45,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 134 [2021-03-25 14:56:45,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:45,080 INFO L129 PetriNetUnfolder]: 118/265 cut-off events. [2021-03-25 14:56:45,080 INFO L130 PetriNetUnfolder]: For 644/884 co-relation queries the response was YES. [2021-03-25 14:56:45,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 265 events. 118/265 cut-off events. For 644/884 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1275 event pairs, 7 based on Foata normal form. 24/265 useless extension candidates. Maximal degree in co-relation 1073. Up to 202 conditions per place. [2021-03-25 14:56:45,081 INFO L132 encePairwiseOnDemand]: 130/134 looper letters, 6 selfloop transitions, 6 changer transitions 0/42 dead transitions. [2021-03-25 14:56:45,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 42 transitions, 335 flow [2021-03-25 14:56:45,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2021-03-25 14:56:45,093 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492537313432836 [2021-03-25 14:56:45,093 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2021-03-25 14:56:45,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2021-03-25 14:56:45,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:45,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2021-03-25 14:56:45,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,095 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,095 INFO L185 Difference]: Start difference. First operand has 55 places, 42 transitions, 311 flow. Second operand 5 states and 569 transitions. [2021-03-25 14:56:45,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 42 transitions, 335 flow [2021-03-25 14:56:45,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 42 transitions, 301 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-25 14:56:45,098 INFO L241 Difference]: Finished difference. Result has 57 places, 42 transitions, 292 flow [2021-03-25 14:56:45,098 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2021-03-25 14:56:45,098 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2021-03-25 14:56:45,098 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:45,098 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 42 transitions, 292 flow [2021-03-25 14:56:45,098 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 42 transitions, 292 flow [2021-03-25 14:56:45,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 42 transitions, 292 flow [2021-03-25 14:56:45,142 INFO L129 PetriNetUnfolder]: 118/261 cut-off events. [2021-03-25 14:56:45,142 INFO L130 PetriNetUnfolder]: For 456/538 co-relation queries the response was YES. [2021-03-25 14:56:45,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 261 events. 118/261 cut-off events. For 456/538 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1358 event pairs, 7 based on Foata normal form. 17/258 useless extension candidates. Maximal degree in co-relation 841. Up to 136 conditions per place. [2021-03-25 14:56:45,152 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 14:56:45,154 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:45,155 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:45,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 14:56:45,155 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 292 flow [2021-03-25 14:56:45,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,155 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:45,155 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:45,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 14:56:45,155 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:45,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1521336821, now seen corresponding path program 2 times [2021-03-25 14:56:45,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:45,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721271474] [2021-03-25 14:56:45,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:45,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:45,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:45,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:45,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:45,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:45,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721271474] [2021-03-25 14:56:45,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:45,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:56:45,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996742937] [2021-03-25 14:56:45,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:56:45,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:45,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:56:45,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:56:45,233 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-25 14:56:45,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:45,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-25 14:56:45,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:45,266 INFO L129 PetriNetUnfolder]: 97/214 cut-off events. [2021-03-25 14:56:45,266 INFO L130 PetriNetUnfolder]: For 532/921 co-relation queries the response was YES. [2021-03-25 14:56:45,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 214 events. 97/214 cut-off events. For 532/921 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 939 event pairs, 1 based on Foata normal form. 144/337 useless extension candidates. Maximal degree in co-relation 804. Up to 92 conditions per place. [2021-03-25 14:56:45,267 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 1 selfloop transitions, 17 changer transitions 8/42 dead transitions. [2021-03-25 14:56:45,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 42 transitions, 328 flow [2021-03-25 14:56:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:56:45,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:56:45,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 679 transitions. [2021-03-25 14:56:45,269 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8445273631840796 [2021-03-25 14:56:45,269 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 679 transitions. [2021-03-25 14:56:45,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 679 transitions. [2021-03-25 14:56:45,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:45,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 679 transitions. [2021-03-25 14:56:45,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.16666666666667) internal successors, (679), 6 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,271 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,271 INFO L185 Difference]: Start difference. First operand has 57 places, 42 transitions, 292 flow. Second operand 6 states and 679 transitions. [2021-03-25 14:56:45,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 42 transitions, 328 flow [2021-03-25 14:56:45,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 42 transitions, 302 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 14:56:45,273 INFO L241 Difference]: Finished difference. Result has 58 places, 34 transitions, 247 flow [2021-03-25 14:56:45,273 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=58, PETRI_TRANSITIONS=34} [2021-03-25 14:56:45,273 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 20 predicate places. [2021-03-25 14:56:45,274 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:45,274 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 34 transitions, 247 flow [2021-03-25 14:56:45,274 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 34 transitions, 247 flow [2021-03-25 14:56:45,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 34 transitions, 247 flow [2021-03-25 14:56:45,279 INFO L129 PetriNetUnfolder]: 38/90 cut-off events. [2021-03-25 14:56:45,279 INFO L130 PetriNetUnfolder]: For 193/241 co-relation queries the response was YES. [2021-03-25 14:56:45,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 90 events. 38/90 cut-off events. For 193/241 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 293 event pairs, 1 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 328. Up to 38 conditions per place. [2021-03-25 14:56:45,280 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-25 14:56:45,420 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-25 14:56:45,420 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 14:56:45,420 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-03-25 14:56:45,422 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 256 flow [2021-03-25 14:56:45,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:45,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:45,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 14:56:45,422 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:45,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:45,423 INFO L82 PathProgramCache]: Analyzing trace with hash -737664482, now seen corresponding path program 1 times [2021-03-25 14:56:45,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:45,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65248135] [2021-03-25 14:56:45,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:45,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:45,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:45,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:45,465 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:56:45,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:56:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:45,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65248135] [2021-03-25 14:56:45,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:45,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:45,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755665253] [2021-03-25 14:56:45,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:45,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:45,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:45,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:45,472 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 139 [2021-03-25 14:56:45,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:45,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 139 [2021-03-25 14:56:45,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:45,503 INFO L129 PetriNetUnfolder]: 49/120 cut-off events. [2021-03-25 14:56:45,504 INFO L130 PetriNetUnfolder]: For 362/418 co-relation queries the response was YES. [2021-03-25 14:56:45,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 120 events. 49/120 cut-off events. For 362/418 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 474 event pairs, 0 based on Foata normal form. 9/124 useless extension candidates. Maximal degree in co-relation 483. Up to 49 conditions per place. [2021-03-25 14:56:45,504 INFO L132 encePairwiseOnDemand]: 131/139 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2021-03-25 14:56:45,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 32 transitions, 272 flow [2021-03-25 14:56:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:45,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 516 transitions. [2021-03-25 14:56:45,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7424460431654676 [2021-03-25 14:56:45,505 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 516 transitions. [2021-03-25 14:56:45,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 516 transitions. [2021-03-25 14:56:45,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:45,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 516 transitions. [2021-03-25 14:56:45,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,508 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,508 INFO L185 Difference]: Start difference. First operand has 54 places, 32 transitions, 256 flow. Second operand 5 states and 516 transitions. [2021-03-25 14:56:45,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 32 transitions, 272 flow [2021-03-25 14:56:45,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 158 flow, removed 15 selfloop flow, removed 17 redundant places. [2021-03-25 14:56:45,509 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-03-25 14:56:45,509 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-03-25 14:56:45,509 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-25 14:56:45,509 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:45,510 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-25 14:56:45,510 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-25 14:56:45,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 14:56:45,510 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 14:56:45,510 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:56:45,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 14:56:45,511 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 14:56:45,511 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:45,511 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:45,511 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 14:56:45,511 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 14:56:45,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:45,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 14:56:45,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:56:45 BasicIcfg [2021-03-25 14:56:45,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:56:45,514 INFO L168 Benchmark]: Toolchain (without parser) took 5101.95 ms. Allocated memory was 343.9 MB in the beginning and 421.5 MB in the end (delta: 77.6 MB). Free memory was 306.5 MB in the beginning and 290.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 93.7 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:45,515 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 343.9 MB. Free memory is still 324.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:56:45,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.25 ms. Allocated memory is still 343.9 MB. Free memory was 306.4 MB in the beginning and 306.0 MB in the end (delta: 336.4 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:45,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.10 ms. Allocated memory is still 343.9 MB. Free memory was 306.0 MB in the beginning and 303.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:45,515 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 343.9 MB. Free memory was 303.9 MB in the beginning and 302.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:45,515 INFO L168 Benchmark]: RCFGBuilder took 421.88 ms. Allocated memory is still 343.9 MB. Free memory was 301.8 MB in the beginning and 276.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:45,516 INFO L168 Benchmark]: TraceAbstraction took 4202.20 ms. Allocated memory was 343.9 MB in the beginning and 421.5 MB in the end (delta: 77.6 MB). Free memory was 275.6 MB in the beginning and 290.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:45,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 343.9 MB. Free memory is still 324.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 400.25 ms. Allocated memory is still 343.9 MB. Free memory was 306.4 MB in the beginning and 306.0 MB in the end (delta: 336.4 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.10 ms. Allocated memory is still 343.9 MB. Free memory was 306.0 MB in the beginning and 303.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 343.9 MB. Free memory was 303.9 MB in the beginning and 302.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 421.88 ms. Allocated memory is still 343.9 MB. Free memory was 301.8 MB in the beginning and 276.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4202.20 ms. Allocated memory was 343.9 MB in the beginning and 421.5 MB in the end (delta: 77.6 MB). Free memory was 275.6 MB in the beginning and 290.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1327.0ms, 80 PlacesBefore, 38 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 1269 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 878, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 747, positive: 723, positive conditional: 0, positive unconditional: 723, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 747, positive: 723, positive conditional: 0, positive unconditional: 723, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 747, positive: 707, positive conditional: 0, positive unconditional: 707, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 169, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 878, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 747, unknown conditional: 0, unknown unconditional: 747] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 430.0ms, 40 PlacesBefore, 36 PlacesAfterwards, 28 TransitionsBefore, 24 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 278 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 120, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 39, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 39, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 25, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 120, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 39, unknown conditional: 0, unknown unconditional: 39] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 401.2ms, 40 PlacesBefore, 39 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 234 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 116, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 116, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.5ms, 45 PlacesBefore, 45 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 226 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 144, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.3ms, 49 PlacesBefore, 49 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 386 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 366 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 303, positive: 287, positive conditional: 0, positive unconditional: 287, negative: 16, negative conditional: 0, negative unconditional: 16, 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: 303, positive: 286, positive conditional: 0, positive unconditional: 286, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6ms, 54 PlacesBefore, 54 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 158 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 10, negative conditional: 0, negative unconditional: 10, 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: 96, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4ms, 50 PlacesBefore, 50 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 94 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 59, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 6, negative conditional: 0, negative unconditional: 6, 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: 59, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.8ms, 48 PlacesBefore, 48 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 208 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): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.8ms, 50 PlacesBefore, 50 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 208 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): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.0ms, 53 PlacesBefore, 53 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 254 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): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.6ms, 55 PlacesBefore, 55 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 248 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): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.4ms, 57 PlacesBefore, 57 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 248 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): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 146.2ms, 58 PlacesBefore, 54 PlacesAfterwards, 34 TransitionsBefore, 32 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 32, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 40 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4126.7ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 669.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1382.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 75 SDtfs, 41 SDslu, 34 SDs, 0 SdLazy, 172 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 140.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 132.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=455occurred in iteration=4, InterpolantAutomatonStates: 58, 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: 22.1ms SsaConstructionTime, 195.2ms SatisfiabilityAnalysisTime, 463.3ms InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 1062 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...