/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:34:58,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:34:58,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:34:59,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:34:59,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:34:59,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:34:59,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:34:59,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:34:59,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:34:59,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:34:59,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:34:59,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:34:59,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:34:59,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:34:59,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:34:59,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:34:59,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:34:59,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:34:59,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:34:59,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:34:59,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:34:59,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:34:59,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:34:59,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:34:59,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:34:59,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:34:59,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:34:59,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:34:59,066 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:34:59,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:34:59,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:34:59,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:34:59,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:34:59,086 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:34:59,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:34:59,086 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:34:59,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:34:59,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:34:59,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:34:59,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:34:59,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:34:59,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:34:59,087 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:34:59,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:34:59,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:34:59,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:34:59,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:34:59,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:34:59,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:34:59,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:34:59,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:34:59,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:34:59,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:34:59,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:34:59,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:34:59,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:34:59,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:34:59,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:34:59,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:34:59,090 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:34:59,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:34:59,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:34:59,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:34:59,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:34:59,412 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:34:59,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_pso.opt.i [2021-03-26 10:34:59,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdb6a69b/38b5058ed3f9429380c424c3a3c0ee9c/FLAGc41a1dbd1 [2021-03-26 10:34:59,975 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:34:59,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_pso.opt.i [2021-03-26 10:34:59,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdb6a69b/38b5058ed3f9429380c424c3a3c0ee9c/FLAGc41a1dbd1 [2021-03-26 10:35:00,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fdb6a69b/38b5058ed3f9429380c424c3a3c0ee9c [2021-03-26 10:35:00,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:35:00,301 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:35:00,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:35:00,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:35:00,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:35:00,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5330ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00, skipping insertion in model container [2021-03-26 10:35:00,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:35:00,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:35:00,440 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/safe017_pso.opt.i[949,962] [2021-03-26 10:35:00,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:35:00,599 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:35:00,615 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/safe017_pso.opt.i[949,962] [2021-03-26 10:35:00,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:35:00,736 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:35:00,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00 WrapperNode [2021-03-26 10:35:00,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:35:00,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:35:00,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:35:00,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:35:00,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:35:00,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:35:00,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:35:00,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:35:00,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... [2021-03-26 10:35:00,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:35:00,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:35:00,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:35:00,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:35:00,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:35:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:35:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:35:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:35:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:35:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:35:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:35:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:35:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:35:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:35:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:35:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:35:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:35:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:35:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:35:00,896 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:35:02,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:35:02,588 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 10:35:02,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:35:02 BoogieIcfgContainer [2021-03-26 10:35:02,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:35:02,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:35:02,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:35:02,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:35:02,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:35:00" (1/3) ... [2021-03-26 10:35:02,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d9ea96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:35:02, skipping insertion in model container [2021-03-26 10:35:02,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:35:00" (2/3) ... [2021-03-26 10:35:02,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d9ea96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:35:02, skipping insertion in model container [2021-03-26 10:35:02,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:35:02" (3/3) ... [2021-03-26 10:35:02,598 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_pso.opt.i [2021-03-26 10:35:02,605 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:35:02,610 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 10:35:02,611 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:35:02,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,654 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,655 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,657 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,658 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,660 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:35:02,661 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:35:02,677 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 10:35:02,694 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:35:02,694 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:35:02,694 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:35:02,694 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:35:02,695 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:35:02,695 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:35:02,695 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:35:02,695 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:35:02,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:35:02,730 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:35:02,730 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:02,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-26 10:35:02,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:35:02,736 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:02,738 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:02,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:02,753 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:02,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-26 10:35:02,766 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:35:02,766 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:02,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-26 10:35:02,769 INFO L142 LiptonReduction]: Number of co-enabled transitions 1602 [2021-03-26 10:35:04,407 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-26 10:35:04,690 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-26 10:35:05,902 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-03-26 10:35:06,465 WARN L205 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-26 10:35:06,656 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:35:06,986 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:35:08,138 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:35:08,405 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-26 10:35:08,970 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 10:35:09,640 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-26 10:35:09,879 INFO L154 LiptonReduction]: Checked pairs total: 2709 [2021-03-26 10:35:09,879 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-26 10:35:09,883 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7146 [2021-03-26 10:35:09,893 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 10:35:09,894 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:09,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:09,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:09,894 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:09,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:09,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1950849355, now seen corresponding path program 1 times [2021-03-26 10:35:09,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:09,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367133650] [2021-03-26 10:35:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:10,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:10,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:10,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:10,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:10,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:10,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367133650] [2021-03-26 10:35:10,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:10,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:10,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677407509] [2021-03-26 10:35:10,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:10,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:10,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:10,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:10,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2021-03-26 10:35:10,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:10,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:10,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2021-03-26 10:35:10,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:10,206 INFO L129 PetriNetUnfolder]: 69/176 cut-off events. [2021-03-26 10:35:10,206 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:10,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 176 events. 69/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 797 event pairs, 54 based on Foata normal form. 9/164 useless extension candidates. Maximal degree in co-relation 284. Up to 89 conditions per place. [2021-03-26 10:35:10,209 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 3/39 dead transitions. [2021-03-26 10:35:10,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 113 flow [2021-03-26 10:35:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:10,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2021-03-26 10:35:10,224 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2021-03-26 10:35:10,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2021-03-26 10:35:10,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2021-03-26 10:35:10,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:10,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2021-03-26 10:35:10,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:10,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:10,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:10,242 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 427 transitions. [2021-03-26 10:35:10,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 113 flow [2021-03-26 10:35:10,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:10,246 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:10,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-26 10:35:10,247 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-26 10:35:10,248 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:10,248 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:10,249 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-26 10:35:10,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 74 flow [2021-03-26 10:35:10,255 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-26 10:35:10,255 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:10,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 10:35:10,256 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-26 10:35:10,789 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:35:11,061 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:35:11,709 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:35:12,405 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 10:35:13,213 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-26 10:35:13,436 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-26 10:35:13,497 INFO L154 LiptonReduction]: Checked pairs total: 1040 [2021-03-26 10:35:13,498 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 10:35:13,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3250 [2021-03-26 10:35:13,499 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2021-03-26 10:35:13,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:13,499 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:13,499 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] [2021-03-26 10:35:13,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:35:13,499 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:13,500 INFO L82 PathProgramCache]: Analyzing trace with hash 344608737, now seen corresponding path program 1 times [2021-03-26 10:35:13,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:13,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385121715] [2021-03-26 10:35:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:13,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:13,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:13,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:13,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:13,598 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 10:35:13,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:35:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:13,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385121715] [2021-03-26 10:35:13,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:13,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:13,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938383964] [2021-03-26 10:35:13,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:13,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:13,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:13,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:13,605 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 171 [2021-03-26 10:35:13,606 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:13,606 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:13,606 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 171 [2021-03-26 10:35:13,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:13,631 INFO L129 PetriNetUnfolder]: 12/53 cut-off events. [2021-03-26 10:35:13,631 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:13,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 53 events. 12/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 164 event pairs, 2 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 80. Up to 25 conditions per place. [2021-03-26 10:35:13,633 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 5 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-03-26 10:35:13,633 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 25 transitions, 76 flow [2021-03-26 10:35:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2021-03-26 10:35:13,635 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8538011695906432 [2021-03-26 10:35:13,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 438 transitions. [2021-03-26 10:35:13,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 438 transitions. [2021-03-26 10:35:13,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:13,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 438 transitions. [2021-03-26 10:35:13,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:13,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:13,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:13,640 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 438 transitions. [2021-03-26 10:35:13,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 25 transitions, 76 flow [2021-03-26 10:35:13,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:13,641 INFO L241 Difference]: Finished difference. Result has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:13,641 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2021-03-26 10:35:13,642 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -14 predicate places. [2021-03-26 10:35:13,642 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:13,642 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:13,642 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:13,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 24 transitions, 69 flow [2021-03-26 10:35:13,645 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-03-26 10:35:13,645 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:35:13,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 32 events. 3/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 44. Up to 10 conditions per place. [2021-03-26 10:35:13,646 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-26 10:35:14,128 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:35:14,239 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:35:14,472 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:35:14,594 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:35:14,672 INFO L154 LiptonReduction]: Checked pairs total: 444 [2021-03-26 10:35:14,673 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:14,673 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1031 [2021-03-26 10:35:14,673 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 67 flow [2021-03-26 10:35:14,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:14,674 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:14,674 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:14,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:35:14,674 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:14,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:14,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1004352304, now seen corresponding path program 1 times [2021-03-26 10:35:14,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:14,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069078326] [2021-03-26 10:35:14,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:14,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:14,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:35:14,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:14,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:14,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:14,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:14,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:14,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069078326] [2021-03-26 10:35:14,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:14,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:14,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595739234] [2021-03-26 10:35:14,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:14,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:14,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:14,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:14,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2021-03-26 10:35:14,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:14,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:14,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2021-03-26 10:35:14,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:14,873 INFO L129 PetriNetUnfolder]: 107/216 cut-off events. [2021-03-26 10:35:14,874 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-03-26 10:35:14,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 216 events. 107/216 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 914 event pairs, 35 based on Foata normal form. 7/203 useless extension candidates. Maximal degree in co-relation 430. Up to 154 conditions per place. [2021-03-26 10:35:14,875 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 10 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2021-03-26 10:35:14,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 115 flow [2021-03-26 10:35:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:14,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2021-03-26 10:35:14,882 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7587209302325582 [2021-03-26 10:35:14,882 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2021-03-26 10:35:14,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2021-03-26 10:35:14,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:14,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2021-03-26 10:35:14,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:14,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:14,888 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:14,888 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 67 flow. Second operand 4 states and 522 transitions. [2021-03-26 10:35:14,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 115 flow [2021-03-26 10:35:14,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:35:14,889 INFO L241 Difference]: Finished difference. Result has 35 places, 28 transitions, 105 flow [2021-03-26 10:35:14,889 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2021-03-26 10:35:14,889 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -11 predicate places. [2021-03-26 10:35:14,889 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:14,889 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 105 flow [2021-03-26 10:35:14,890 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 105 flow [2021-03-26 10:35:14,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 105 flow [2021-03-26 10:35:14,928 INFO L129 PetriNetUnfolder]: 26/87 cut-off events. [2021-03-26 10:35:14,929 INFO L130 PetriNetUnfolder]: For 45/69 co-relation queries the response was YES. [2021-03-26 10:35:14,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 87 events. 26/87 cut-off events. For 45/69 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 368 event pairs, 12 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 188. Up to 41 conditions per place. [2021-03-26 10:35:14,930 INFO L142 LiptonReduction]: Number of co-enabled transitions 296 [2021-03-26 10:35:15,009 INFO L154 LiptonReduction]: Checked pairs total: 105 [2021-03-26 10:35:15,010 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:15,010 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 121 [2021-03-26 10:35:15,011 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 105 flow [2021-03-26 10:35:15,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 126.8) internal successors, (634), 5 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,011 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:15,011 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:15,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:35:15,011 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:15,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:15,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1411822924, now seen corresponding path program 1 times [2021-03-26 10:35:15,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:15,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136382538] [2021-03-26 10:35:15,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:15,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:15,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:15,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:15,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136382538] [2021-03-26 10:35:15,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:15,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:15,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362881919] [2021-03-26 10:35:15,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:15,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:15,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:15,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:15,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 172 [2021-03-26 10:35:15,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:15,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 172 [2021-03-26 10:35:15,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:15,195 INFO L129 PetriNetUnfolder]: 30/134 cut-off events. [2021-03-26 10:35:15,196 INFO L130 PetriNetUnfolder]: For 151/241 co-relation queries the response was YES. [2021-03-26 10:35:15,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 134 events. 30/134 cut-off events. For 151/241 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 713 event pairs, 12 based on Foata normal form. 7/135 useless extension candidates. Maximal degree in co-relation 289. Up to 54 conditions per place. [2021-03-26 10:35:15,197 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 5 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-26 10:35:15,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 123 flow [2021-03-26 10:35:15,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2021-03-26 10:35:15,200 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2021-03-26 10:35:15,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2021-03-26 10:35:15,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2021-03-26 10:35:15,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:15,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2021-03-26 10:35:15,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,203 INFO L185 Difference]: Start difference. First operand has 35 places, 28 transitions, 105 flow. Second operand 3 states and 449 transitions. [2021-03-26 10:35:15,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 123 flow [2021-03-26 10:35:15,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 29 transitions, 123 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:35:15,204 INFO L241 Difference]: Finished difference. Result has 38 places, 28 transitions, 116 flow [2021-03-26 10:35:15,204 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2021-03-26 10:35:15,204 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -8 predicate places. [2021-03-26 10:35:15,204 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:15,204 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 28 transitions, 116 flow [2021-03-26 10:35:15,205 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 28 transitions, 116 flow [2021-03-26 10:35:15,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 28 transitions, 116 flow [2021-03-26 10:35:15,213 INFO L129 PetriNetUnfolder]: 22/95 cut-off events. [2021-03-26 10:35:15,213 INFO L130 PetriNetUnfolder]: For 121/174 co-relation queries the response was YES. [2021-03-26 10:35:15,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 95 events. 22/95 cut-off events. For 121/174 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 449 event pairs, 12 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 213. Up to 45 conditions per place. [2021-03-26 10:35:15,215 INFO L142 LiptonReduction]: Number of co-enabled transitions 296 [2021-03-26 10:35:15,218 INFO L154 LiptonReduction]: Checked pairs total: 105 [2021-03-26 10:35:15,219 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:15,219 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 10:35:15,223 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 116 flow [2021-03-26 10:35:15,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:15,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:15,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:35:15,223 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:15,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:15,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1008787916, now seen corresponding path program 1 times [2021-03-26 10:35:15,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:15,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903005903] [2021-03-26 10:35:15,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:15,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:15,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:15,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:15,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903005903] [2021-03-26 10:35:15,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:15,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:35:15,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704069247] [2021-03-26 10:35:15,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:35:15,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:15,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:35:15,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:35:15,311 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 172 [2021-03-26 10:35:15,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 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) [2021-03-26 10:35:15,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:15,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 172 [2021-03-26 10:35:15,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:15,334 INFO L129 PetriNetUnfolder]: 15/93 cut-off events. [2021-03-26 10:35:15,334 INFO L130 PetriNetUnfolder]: For 251/319 co-relation queries the response was YES. [2021-03-26 10:35:15,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 93 events. 15/93 cut-off events. For 251/319 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 425 event pairs, 5 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 198. Up to 37 conditions per place. [2021-03-26 10:35:15,335 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 1 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2021-03-26 10:35:15,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 28 transitions, 122 flow [2021-03-26 10:35:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:35:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:35:15,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2021-03-26 10:35:15,337 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8798449612403101 [2021-03-26 10:35:15,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2021-03-26 10:35:15,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2021-03-26 10:35:15,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:15,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2021-03-26 10:35:15,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,340 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,340 INFO L185 Difference]: Start difference. First operand has 38 places, 28 transitions, 116 flow. Second operand 3 states and 454 transitions. [2021-03-26 10:35:15,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 28 transitions, 122 flow [2021-03-26 10:35:15,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 117 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 10:35:15,342 INFO L241 Difference]: Finished difference. Result has 40 places, 28 transitions, 119 flow [2021-03-26 10:35:15,342 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2021-03-26 10:35:15,342 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -6 predicate places. [2021-03-26 10:35:15,342 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:15,343 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 28 transitions, 119 flow [2021-03-26 10:35:15,343 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 28 transitions, 119 flow [2021-03-26 10:35:15,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 28 transitions, 119 flow [2021-03-26 10:35:15,355 INFO L129 PetriNetUnfolder]: 22/97 cut-off events. [2021-03-26 10:35:15,355 INFO L130 PetriNetUnfolder]: For 155/198 co-relation queries the response was YES. [2021-03-26 10:35:15,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 97 events. 22/97 cut-off events. For 155/198 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 449 event pairs, 12 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 227. Up to 45 conditions per place. [2021-03-26 10:35:15,358 INFO L142 LiptonReduction]: Number of co-enabled transitions 294 [2021-03-26 10:35:15,361 INFO L154 LiptonReduction]: Checked pairs total: 89 [2021-03-26 10:35:15,361 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:15,362 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 10:35:15,362 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 119 flow [2021-03-26 10:35:15,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 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) [2021-03-26 10:35:15,363 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:15,363 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:15,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:35:15,363 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:15,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:15,363 INFO L82 PathProgramCache]: Analyzing trace with hash 725298376, now seen corresponding path program 1 times [2021-03-26 10:35:15,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:15,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737061363] [2021-03-26 10:35:15,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:15,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:15,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:15,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:15,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:15,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737061363] [2021-03-26 10:35:15,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:15,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:35:15,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435469607] [2021-03-26 10:35:15,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:15,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:15,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:15,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:15,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-26 10:35:15,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:15,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-26 10:35:15,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:15,472 INFO L129 PetriNetUnfolder]: 30/169 cut-off events. [2021-03-26 10:35:15,472 INFO L130 PetriNetUnfolder]: For 321/407 co-relation queries the response was YES. [2021-03-26 10:35:15,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 169 events. 30/169 cut-off events. For 321/407 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1028 event pairs, 6 based on Foata normal form. 12/170 useless extension candidates. Maximal degree in co-relation 370. Up to 59 conditions per place. [2021-03-26 10:35:15,473 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 4 selfloop transitions, 4 changer transitions 2/31 dead transitions. [2021-03-26 10:35:15,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 31 transitions, 154 flow [2021-03-26 10:35:15,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:15,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:15,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 587 transitions. [2021-03-26 10:35:15,475 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8531976744186046 [2021-03-26 10:35:15,476 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 587 transitions. [2021-03-26 10:35:15,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 587 transitions. [2021-03-26 10:35:15,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:15,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 587 transitions. [2021-03-26 10:35:15,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,480 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,480 INFO L185 Difference]: Start difference. First operand has 40 places, 28 transitions, 119 flow. Second operand 4 states and 587 transitions. [2021-03-26 10:35:15,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 31 transitions, 154 flow [2021-03-26 10:35:15,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:15,486 INFO L241 Difference]: Finished difference. Result has 42 places, 28 transitions, 128 flow [2021-03-26 10:35:15,486 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2021-03-26 10:35:15,487 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -4 predicate places. [2021-03-26 10:35:15,487 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:15,487 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 28 transitions, 128 flow [2021-03-26 10:35:15,487 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 28 transitions, 128 flow [2021-03-26 10:35:15,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 28 transitions, 128 flow [2021-03-26 10:35:15,497 INFO L129 PetriNetUnfolder]: 22/99 cut-off events. [2021-03-26 10:35:15,498 INFO L130 PetriNetUnfolder]: For 230/257 co-relation queries the response was YES. [2021-03-26 10:35:15,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 99 events. 22/99 cut-off events. For 230/257 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 463 event pairs, 12 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 249. Up to 46 conditions per place. [2021-03-26 10:35:15,499 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-26 10:35:15,505 INFO L154 LiptonReduction]: Checked pairs total: 81 [2021-03-26 10:35:15,506 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:15,506 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 10:35:15,510 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 128 flow [2021-03-26 10:35:15,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,511 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:15,511 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:15,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:35:15,511 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:15,512 INFO L82 PathProgramCache]: Analyzing trace with hash 223076978, now seen corresponding path program 2 times [2021-03-26 10:35:15,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:15,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813223317] [2021-03-26 10:35:15,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:15,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:15,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:15,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:15,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:35:15,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:15,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 10:35:15,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:15,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813223317] [2021-03-26 10:35:15,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:15,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:15,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35742217] [2021-03-26 10:35:15,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:15,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:15,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:15,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:15,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 172 [2021-03-26 10:35:15,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:15,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 172 [2021-03-26 10:35:15,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:15,767 INFO L129 PetriNetUnfolder]: 113/263 cut-off events. [2021-03-26 10:35:15,767 INFO L130 PetriNetUnfolder]: For 543/589 co-relation queries the response was YES. [2021-03-26 10:35:15,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 263 events. 113/263 cut-off events. For 543/589 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1305 event pairs, 26 based on Foata normal form. 11/264 useless extension candidates. Maximal degree in co-relation 736. Up to 172 conditions per place. [2021-03-26 10:35:15,768 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 12 selfloop transitions, 8 changer transitions 0/35 dead transitions. [2021-03-26 10:35:15,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 188 flow [2021-03-26 10:35:15,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:15,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:15,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 534 transitions. [2021-03-26 10:35:15,770 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7761627906976745 [2021-03-26 10:35:15,770 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 534 transitions. [2021-03-26 10:35:15,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 534 transitions. [2021-03-26 10:35:15,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:15,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 534 transitions. [2021-03-26 10:35:15,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,773 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:15,773 INFO L185 Difference]: Start difference. First operand has 42 places, 28 transitions, 128 flow. Second operand 4 states and 534 transitions. [2021-03-26 10:35:15,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 188 flow [2021-03-26 10:35:15,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 35 transitions, 178 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:15,774 INFO L241 Difference]: Finished difference. Result has 44 places, 32 transitions, 168 flow [2021-03-26 10:35:15,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2021-03-26 10:35:15,775 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2021-03-26 10:35:15,775 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:15,775 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 32 transitions, 168 flow [2021-03-26 10:35:15,775 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 32 transitions, 168 flow [2021-03-26 10:35:15,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 32 transitions, 168 flow [2021-03-26 10:35:15,793 INFO L129 PetriNetUnfolder]: 72/203 cut-off events. [2021-03-26 10:35:15,793 INFO L130 PetriNetUnfolder]: For 423/447 co-relation queries the response was YES. [2021-03-26 10:35:15,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 203 events. 72/203 cut-off events. For 423/447 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1093 event pairs, 42 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 571. Up to 102 conditions per place. [2021-03-26 10:35:15,795 INFO L142 LiptonReduction]: Number of co-enabled transitions 280 [2021-03-26 10:35:15,955 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 10:35:16,331 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2021-03-26 10:35:16,463 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-03-26 10:35:16,471 INFO L154 LiptonReduction]: Checked pairs total: 51 [2021-03-26 10:35:16,472 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:16,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 697 [2021-03-26 10:35:16,472 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 171 flow [2021-03-26 10:35:16,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:16,473 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:16,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:35:16,473 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:16,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1005713016, now seen corresponding path program 1 times [2021-03-26 10:35:16,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:16,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165103696] [2021-03-26 10:35:16,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:16,526 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:35:16,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:35:16,554 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:35:16,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:16,580 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:35:16,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 10:35:16,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:16,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:16,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165103696] [2021-03-26 10:35:16,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:16,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:35:16,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278047674] [2021-03-26 10:35:16,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:35:16,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:16,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:35:16,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:35:16,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 173 [2021-03-26 10:35:16,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:16,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 173 [2021-03-26 10:35:16,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:16,723 INFO L129 PetriNetUnfolder]: 109/253 cut-off events. [2021-03-26 10:35:16,724 INFO L130 PetriNetUnfolder]: For 534/589 co-relation queries the response was YES. [2021-03-26 10:35:16,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 253 events. 109/253 cut-off events. For 534/589 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1217 event pairs, 14 based on Foata normal form. 17/258 useless extension candidates. Maximal degree in co-relation 868. Up to 174 conditions per place. [2021-03-26 10:35:16,726 INFO L132 encePairwiseOnDemand]: 167/173 looper letters, 14 selfloop transitions, 8 changer transitions 0/37 dead transitions. [2021-03-26 10:35:16,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 237 flow [2021-03-26 10:35:16,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2021-03-26 10:35:16,729 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7427745664739884 [2021-03-26 10:35:16,729 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 514 transitions. [2021-03-26 10:35:16,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 514 transitions. [2021-03-26 10:35:16,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:16,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 514 transitions. [2021-03-26 10:35:16,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,733 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,733 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 171 flow. Second operand 4 states and 514 transitions. [2021-03-26 10:35:16,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 237 flow [2021-03-26 10:35:16,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 227 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-26 10:35:16,736 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 196 flow [2021-03-26 10:35:16,737 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-26 10:35:16,737 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2021-03-26 10:35:16,737 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:16,737 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 196 flow [2021-03-26 10:35:16,737 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 196 flow [2021-03-26 10:35:16,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 196 flow [2021-03-26 10:35:16,822 INFO L129 PetriNetUnfolder]: 74/198 cut-off events. [2021-03-26 10:35:16,822 INFO L130 PetriNetUnfolder]: For 684/724 co-relation queries the response was YES. [2021-03-26 10:35:16,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 198 events. 74/198 cut-off events. For 684/724 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1009 event pairs, 40 based on Foata normal form. 2/180 useless extension candidates. Maximal degree in co-relation 633. Up to 97 conditions per place. [2021-03-26 10:35:16,825 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-26 10:35:16,827 INFO L154 LiptonReduction]: Checked pairs total: 85 [2021-03-26 10:35:16,827 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:16,827 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-26 10:35:16,828 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 196 flow [2021-03-26 10:35:16,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,828 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:16,828 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:16,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:35:16,829 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:16,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:16,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1005754122, now seen corresponding path program 1 times [2021-03-26 10:35:16,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:16,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492964219] [2021-03-26 10:35:16,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:16,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:16,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:16,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:35:16,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:16,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:35:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:16,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492964219] [2021-03-26 10:35:16,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:16,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:16,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782202957] [2021-03-26 10:35:16,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:16,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:16,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:16,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:16,905 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 173 [2021-03-26 10:35:16,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 196 flow. Second operand has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:16,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 173 [2021-03-26 10:35:16,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:16,975 INFO L129 PetriNetUnfolder]: 118/284 cut-off events. [2021-03-26 10:35:16,975 INFO L130 PetriNetUnfolder]: For 806/896 co-relation queries the response was YES. [2021-03-26 10:35:16,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 284 events. 118/284 cut-off events. For 806/896 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1507 event pairs, 43 based on Foata normal form. 7/280 useless extension candidates. Maximal degree in co-relation 1005. Up to 171 conditions per place. [2021-03-26 10:35:16,978 INFO L132 encePairwiseOnDemand]: 167/173 looper letters, 15 selfloop transitions, 9 changer transitions 0/39 dead transitions. [2021-03-26 10:35:16,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 39 transitions, 270 flow [2021-03-26 10:35:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:16,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 551 transitions. [2021-03-26 10:35:16,981 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.796242774566474 [2021-03-26 10:35:16,981 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 551 transitions. [2021-03-26 10:35:16,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 551 transitions. [2021-03-26 10:35:16,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:16,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 551 transitions. [2021-03-26 10:35:16,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,984 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:16,984 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 196 flow. Second operand 4 states and 551 transitions. [2021-03-26 10:35:16,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 39 transitions, 270 flow [2021-03-26 10:35:16,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 39 transitions, 257 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:16,987 INFO L241 Difference]: Finished difference. Result has 49 places, 37 transitions, 233 flow [2021-03-26 10:35:16,987 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2021-03-26 10:35:16,987 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 3 predicate places. [2021-03-26 10:35:16,987 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:16,987 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 37 transitions, 233 flow [2021-03-26 10:35:16,988 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 37 transitions, 233 flow [2021-03-26 10:35:16,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 37 transitions, 233 flow [2021-03-26 10:35:17,014 INFO L129 PetriNetUnfolder]: 96/235 cut-off events. [2021-03-26 10:35:17,014 INFO L130 PetriNetUnfolder]: For 734/793 co-relation queries the response was YES. [2021-03-26 10:35:17,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 235 events. 96/235 cut-off events. For 734/793 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1200 event pairs, 24 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 840. Up to 123 conditions per place. [2021-03-26 10:35:17,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 322 [2021-03-26 10:35:17,020 INFO L154 LiptonReduction]: Checked pairs total: 90 [2021-03-26 10:35:17,020 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:17,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 10:35:17,020 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 233 flow [2021-03-26 10:35:17,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:17,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:17,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:35:17,021 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:17,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:17,021 INFO L82 PathProgramCache]: Analyzing trace with hash 992516440, now seen corresponding path program 1 times [2021-03-26 10:35:17,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:17,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114232008] [2021-03-26 10:35:17,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:17,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:35:17,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 10:35:17,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 10:35:17,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 10:35:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:17,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114232008] [2021-03-26 10:35:17,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:17,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:17,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44662251] [2021-03-26 10:35:17,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:17,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:17,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:17,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:17,142 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 173 [2021-03-26 10:35:17,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:17,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 173 [2021-03-26 10:35:17,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:17,231 INFO L129 PetriNetUnfolder]: 128/308 cut-off events. [2021-03-26 10:35:17,231 INFO L130 PetriNetUnfolder]: For 889/1003 co-relation queries the response was YES. [2021-03-26 10:35:17,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1258 conditions, 308 events. 128/308 cut-off events. For 889/1003 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1685 event pairs, 13 based on Foata normal form. 31/330 useless extension candidates. Maximal degree in co-relation 1236. Up to 173 conditions per place. [2021-03-26 10:35:17,233 INFO L132 encePairwiseOnDemand]: 167/173 looper letters, 21 selfloop transitions, 11 changer transitions 2/49 dead transitions. [2021-03-26 10:35:17,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 386 flow [2021-03-26 10:35:17,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:17,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 539 transitions. [2021-03-26 10:35:17,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7789017341040463 [2021-03-26 10:35:17,235 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 539 transitions. [2021-03-26 10:35:17,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 539 transitions. [2021-03-26 10:35:17,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:17,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 539 transitions. [2021-03-26 10:35:17,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,238 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,238 INFO L185 Difference]: Start difference. First operand has 49 places, 37 transitions, 233 flow. Second operand 4 states and 539 transitions. [2021-03-26 10:35:17,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 386 flow [2021-03-26 10:35:17,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 357 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:17,241 INFO L241 Difference]: Finished difference. Result has 51 places, 42 transitions, 293 flow [2021-03-26 10:35:17,242 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=293, PETRI_PLACES=51, PETRI_TRANSITIONS=42} [2021-03-26 10:35:17,242 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2021-03-26 10:35:17,242 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:17,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 42 transitions, 293 flow [2021-03-26 10:35:17,242 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 42 transitions, 293 flow [2021-03-26 10:35:17,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 293 flow [2021-03-26 10:35:17,265 INFO L129 PetriNetUnfolder]: 98/245 cut-off events. [2021-03-26 10:35:17,265 INFO L130 PetriNetUnfolder]: For 922/999 co-relation queries the response was YES. [2021-03-26 10:35:17,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 245 events. 98/245 cut-off events. For 922/999 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1261 event pairs, 18 based on Foata normal form. 9/226 useless extension candidates. Maximal degree in co-relation 962. Up to 131 conditions per place. [2021-03-26 10:35:17,267 INFO L142 LiptonReduction]: Number of co-enabled transitions 352 [2021-03-26 10:35:17,278 INFO L154 LiptonReduction]: Checked pairs total: 147 [2021-03-26 10:35:17,278 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:35:17,278 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-26 10:35:17,279 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 42 transitions, 293 flow [2021-03-26 10:35:17,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,279 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:17,279 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:17,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:35:17,279 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:17,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1082600107, now seen corresponding path program 1 times [2021-03-26 10:35:17,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:17,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361981220] [2021-03-26 10:35:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:17,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:17,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:17,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:17,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361981220] [2021-03-26 10:35:17,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:17,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:17,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637202650] [2021-03-26 10:35:17,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:17,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:17,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:17,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:17,333 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 173 [2021-03-26 10:35:17,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 293 flow. Second operand has 4 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:17,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 173 [2021-03-26 10:35:17,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:17,383 INFO L129 PetriNetUnfolder]: 148/374 cut-off events. [2021-03-26 10:35:17,383 INFO L130 PetriNetUnfolder]: For 1617/1746 co-relation queries the response was YES. [2021-03-26 10:35:17,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 374 events. 148/374 cut-off events. For 1617/1746 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2256 event pairs, 49 based on Foata normal form. 29/363 useless extension candidates. Maximal degree in co-relation 1427. Up to 195 conditions per place. [2021-03-26 10:35:17,386 INFO L132 encePairwiseOnDemand]: 169/173 looper letters, 4 selfloop transitions, 4 changer transitions 1/44 dead transitions. [2021-03-26 10:35:17,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 319 flow [2021-03-26 10:35:17,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 734 transitions. [2021-03-26 10:35:17,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8485549132947977 [2021-03-26 10:35:17,388 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 734 transitions. [2021-03-26 10:35:17,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 734 transitions. [2021-03-26 10:35:17,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:17,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 734 transitions. [2021-03-26 10:35:17,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,392 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,392 INFO L185 Difference]: Start difference. First operand has 51 places, 42 transitions, 293 flow. Second operand 5 states and 734 transitions. [2021-03-26 10:35:17,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 319 flow [2021-03-26 10:35:17,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 44 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:17,394 INFO L241 Difference]: Finished difference. Result has 55 places, 43 transitions, 301 flow [2021-03-26 10:35:17,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=301, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2021-03-26 10:35:17,395 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2021-03-26 10:35:17,395 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:17,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 43 transitions, 301 flow [2021-03-26 10:35:17,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 43 transitions, 301 flow [2021-03-26 10:35:17,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 43 transitions, 301 flow [2021-03-26 10:35:17,424 INFO L129 PetriNetUnfolder]: 126/321 cut-off events. [2021-03-26 10:35:17,425 INFO L130 PetriNetUnfolder]: For 1222/1317 co-relation queries the response was YES. [2021-03-26 10:35:17,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1235 conditions, 321 events. 126/321 cut-off events. For 1222/1317 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1849 event pairs, 45 based on Foata normal form. 15/301 useless extension candidates. Maximal degree in co-relation 1213. Up to 170 conditions per place. [2021-03-26 10:35:17,428 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-26 10:35:17,441 INFO L154 LiptonReduction]: Checked pairs total: 255 [2021-03-26 10:35:17,441 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:17,441 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-03-26 10:35:17,443 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 295 flow [2021-03-26 10:35:17,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,444 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:17,444 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:17,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 10:35:17,444 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:17,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:17,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1082582437, now seen corresponding path program 2 times [2021-03-26 10:35:17,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:17,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155779468] [2021-03-26 10:35:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:17,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:17,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:17,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:17,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155779468] [2021-03-26 10:35:17,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:17,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:35:17,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581507722] [2021-03-26 10:35:17,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:35:17,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:17,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:35:17,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:35:17,505 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 173 [2021-03-26 10:35:17,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 139.75) internal successors, (559), 4 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:17,505 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 173 [2021-03-26 10:35:17,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:17,594 INFO L129 PetriNetUnfolder]: 367/810 cut-off events. [2021-03-26 10:35:17,595 INFO L130 PetriNetUnfolder]: For 1791/2056 co-relation queries the response was YES. [2021-03-26 10:35:17,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2428 conditions, 810 events. 367/810 cut-off events. For 1791/2056 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 5783 event pairs, 127 based on Foata normal form. 142/803 useless extension candidates. Maximal degree in co-relation 2404. Up to 475 conditions per place. [2021-03-26 10:35:17,600 INFO L132 encePairwiseOnDemand]: 167/173 looper letters, 10 selfloop transitions, 8 changer transitions 0/53 dead transitions. [2021-03-26 10:35:17,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 53 transitions, 353 flow [2021-03-26 10:35:17,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:35:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:35:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 715 transitions. [2021-03-26 10:35:17,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8265895953757225 [2021-03-26 10:35:17,602 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 715 transitions. [2021-03-26 10:35:17,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 715 transitions. [2021-03-26 10:35:17,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:17,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 715 transitions. [2021-03-26 10:35:17,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,606 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,606 INFO L185 Difference]: Start difference. First operand has 54 places, 42 transitions, 295 flow. Second operand 5 states and 715 transitions. [2021-03-26 10:35:17,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 53 transitions, 353 flow [2021-03-26 10:35:17,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 345 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:17,610 INFO L241 Difference]: Finished difference. Result has 58 places, 49 transitions, 347 flow [2021-03-26 10:35:17,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=347, PETRI_PLACES=58, PETRI_TRANSITIONS=49} [2021-03-26 10:35:17,610 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2021-03-26 10:35:17,610 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:17,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 49 transitions, 347 flow [2021-03-26 10:35:17,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 49 transitions, 347 flow [2021-03-26 10:35:17,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 49 transitions, 347 flow [2021-03-26 10:35:17,662 INFO L129 PetriNetUnfolder]: 294/685 cut-off events. [2021-03-26 10:35:17,663 INFO L130 PetriNetUnfolder]: For 2053/2264 co-relation queries the response was YES. [2021-03-26 10:35:17,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2557 conditions, 685 events. 294/685 cut-off events. For 2053/2264 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 4837 event pairs, 102 based on Foata normal form. 59/692 useless extension candidates. Maximal degree in co-relation 2532. Up to 326 conditions per place. [2021-03-26 10:35:17,669 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-26 10:35:17,676 INFO L154 LiptonReduction]: Checked pairs total: 29 [2021-03-26 10:35:17,676 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:17,676 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-26 10:35:17,677 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 341 flow [2021-03-26 10:35:17,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 139.75) internal successors, (559), 4 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:17,677 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:17,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 10:35:17,677 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:17,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:17,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1166252166, now seen corresponding path program 1 times [2021-03-26 10:35:17,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:17,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414343822] [2021-03-26 10:35:17,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:17,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:17,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:17,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:17,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:17,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:17,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414343822] [2021-03-26 10:35:17,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:17,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:35:17,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536300745] [2021-03-26 10:35:17,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:35:17,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:17,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:35:17,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:35:17,725 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 173 [2021-03-26 10:35:17,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 341 flow. Second operand has 5 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:17,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 173 [2021-03-26 10:35:17,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:17,828 INFO L129 PetriNetUnfolder]: 215/533 cut-off events. [2021-03-26 10:35:17,828 INFO L130 PetriNetUnfolder]: For 1391/1886 co-relation queries the response was YES. [2021-03-26 10:35:17,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 533 events. 215/533 cut-off events. For 1391/1886 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 3544 event pairs, 18 based on Foata normal form. 148/622 useless extension candidates. Maximal degree in co-relation 2034. Up to 298 conditions per place. [2021-03-26 10:35:17,832 INFO L132 encePairwiseOnDemand]: 167/173 looper letters, 8 selfloop transitions, 11 changer transitions 3/57 dead transitions. [2021-03-26 10:35:17,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 429 flow [2021-03-26 10:35:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:17,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:17,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2021-03-26 10:35:17,834 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8265895953757225 [2021-03-26 10:35:17,834 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 858 transitions. [2021-03-26 10:35:17,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 858 transitions. [2021-03-26 10:35:17,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:17,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 858 transitions. [2021-03-26 10:35:17,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,837 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,837 INFO L185 Difference]: Start difference. First operand has 58 places, 48 transitions, 341 flow. Second operand 6 states and 858 transitions. [2021-03-26 10:35:17,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 429 flow [2021-03-26 10:35:17,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 423 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:35:17,842 INFO L241 Difference]: Finished difference. Result has 62 places, 52 transitions, 405 flow [2021-03-26 10:35:17,842 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=405, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2021-03-26 10:35:17,843 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2021-03-26 10:35:17,843 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:17,843 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 52 transitions, 405 flow [2021-03-26 10:35:17,843 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 52 transitions, 405 flow [2021-03-26 10:35:17,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 52 transitions, 405 flow [2021-03-26 10:35:17,872 INFO L129 PetriNetUnfolder]: 124/381 cut-off events. [2021-03-26 10:35:17,872 INFO L130 PetriNetUnfolder]: For 1236/1352 co-relation queries the response was YES. [2021-03-26 10:35:17,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1651 conditions, 381 events. 124/381 cut-off events. For 1236/1352 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2544 event pairs, 17 based on Foata normal form. 20/390 useless extension candidates. Maximal degree in co-relation 1623. Up to 205 conditions per place. [2021-03-26 10:35:17,876 INFO L142 LiptonReduction]: Number of co-enabled transitions 408 [2021-03-26 10:35:17,885 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-26 10:35:17,885 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:17,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-26 10:35:17,886 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 397 flow [2021-03-26 10:35:17,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:17,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:17,886 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:17,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 10:35:17,886 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:17,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1769672420, now seen corresponding path program 1 times [2021-03-26 10:35:17,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:17,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053010761] [2021-03-26 10:35:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:17,932 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:35:17,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:17,953 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 10:35:17,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 10:35:17,982 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 10:35:17,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 10:35:18,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:18,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:35:18,022 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-26 10:35:18,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:35:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:18,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053010761] [2021-03-26 10:35:18,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:18,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:18,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745415103] [2021-03-26 10:35:18,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:35:18,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:18,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:35:18,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:35:18,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 173 [2021-03-26 10:35:18,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 397 flow. Second operand has 7 states, 7 states have (on average 128.85714285714286) internal successors, (902), 7 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:18,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 173 [2021-03-26 10:35:18,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:18,147 INFO L129 PetriNetUnfolder]: 113/323 cut-off events. [2021-03-26 10:35:18,147 INFO L130 PetriNetUnfolder]: For 1339/1463 co-relation queries the response was YES. [2021-03-26 10:35:18,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1561 conditions, 323 events. 113/323 cut-off events. For 1339/1463 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1814 event pairs, 16 based on Foata normal form. 30/341 useless extension candidates. Maximal degree in co-relation 1531. Up to 136 conditions per place. [2021-03-26 10:35:18,149 INFO L132 encePairwiseOnDemand]: 168/173 looper letters, 15 selfloop transitions, 13 changer transitions 6/55 dead transitions. [2021-03-26 10:35:18,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 55 transitions, 497 flow [2021-03-26 10:35:18,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:35:18,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:35:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 531 transitions. [2021-03-26 10:35:18,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7673410404624278 [2021-03-26 10:35:18,151 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 531 transitions. [2021-03-26 10:35:18,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 531 transitions. [2021-03-26 10:35:18,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:18,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 531 transitions. [2021-03-26 10:35:18,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,153 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,153 INFO L185 Difference]: Start difference. First operand has 62 places, 51 transitions, 397 flow. Second operand 4 states and 531 transitions. [2021-03-26 10:35:18,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 55 transitions, 497 flow [2021-03-26 10:35:18,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 55 transitions, 469 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-26 10:35:18,157 INFO L241 Difference]: Finished difference. Result has 61 places, 48 transitions, 395 flow [2021-03-26 10:35:18,157 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=395, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2021-03-26 10:35:18,157 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 15 predicate places. [2021-03-26 10:35:18,157 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:18,158 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 48 transitions, 395 flow [2021-03-26 10:35:18,158 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 48 transitions, 395 flow [2021-03-26 10:35:18,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 395 flow [2021-03-26 10:35:18,176 INFO L129 PetriNetUnfolder]: 70/215 cut-off events. [2021-03-26 10:35:18,176 INFO L130 PetriNetUnfolder]: For 766/794 co-relation queries the response was YES. [2021-03-26 10:35:18,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 215 events. 70/215 cut-off events. For 766/794 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1054 event pairs, 15 based on Foata normal form. 8/216 useless extension candidates. Maximal degree in co-relation 899. Up to 70 conditions per place. [2021-03-26 10:35:18,178 INFO L142 LiptonReduction]: Number of co-enabled transitions 304 [2021-03-26 10:35:18,204 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-26 10:35:18,204 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:18,204 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-26 10:35:18,205 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 399 flow [2021-03-26 10:35:18,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 128.85714285714286) internal successors, (902), 7 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:18,205 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:18,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 10:35:18,205 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:18,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:18,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2086286437, now seen corresponding path program 1 times [2021-03-26 10:35:18,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:18,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722730457] [2021-03-26 10:35:18,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:18,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:18,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:18,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:18,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:18,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:18,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:18,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:18,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:35:18,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:18,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:35:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:18,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722730457] [2021-03-26 10:35:18,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:18,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:35:18,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491546411] [2021-03-26 10:35:18,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:35:18,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:18,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:35:18,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:35:18,264 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 174 [2021-03-26 10:35:18,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 399 flow. Second operand has 6 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:18,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 174 [2021-03-26 10:35:18,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:18,323 INFO L129 PetriNetUnfolder]: 111/274 cut-off events. [2021-03-26 10:35:18,323 INFO L130 PetriNetUnfolder]: For 588/663 co-relation queries the response was YES. [2021-03-26 10:35:18,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 274 events. 111/274 cut-off events. For 588/663 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1476 event pairs, 6 based on Foata normal form. 35/277 useless extension candidates. Maximal degree in co-relation 1100. Up to 85 conditions per place. [2021-03-26 10:35:18,325 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 5 selfloop transitions, 11 changer transitions 11/55 dead transitions. [2021-03-26 10:35:18,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 55 transitions, 475 flow [2021-03-26 10:35:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:35:18,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:35:18,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1002 transitions. [2021-03-26 10:35:18,327 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8226600985221675 [2021-03-26 10:35:18,327 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1002 transitions. [2021-03-26 10:35:18,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1002 transitions. [2021-03-26 10:35:18,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:18,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1002 transitions. [2021-03-26 10:35:18,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.14285714285714) internal successors, (1002), 7 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,330 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:18,330 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 399 flow. Second operand 7 states and 1002 transitions. [2021-03-26 10:35:18,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 55 transitions, 475 flow [2021-03-26 10:35:18,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 55 transitions, 417 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-03-26 10:35:18,333 INFO L241 Difference]: Finished difference. Result has 65 places, 42 transitions, 332 flow [2021-03-26 10:35:18,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=332, PETRI_PLACES=65, PETRI_TRANSITIONS=42} [2021-03-26 10:35:18,334 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2021-03-26 10:35:18,334 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:18,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 42 transitions, 332 flow [2021-03-26 10:35:18,334 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 42 transitions, 332 flow [2021-03-26 10:35:18,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 42 transitions, 332 flow [2021-03-26 10:35:18,341 INFO L129 PetriNetUnfolder]: 19/70 cut-off events. [2021-03-26 10:35:18,341 INFO L130 PetriNetUnfolder]: For 167/173 co-relation queries the response was YES. [2021-03-26 10:35:18,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 70 events. 19/70 cut-off events. For 167/173 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 190 event pairs, 1 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 288. Up to 21 conditions per place. [2021-03-26 10:35:18,342 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 10:35:18,489 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:35:18,838 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:35:18,953 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 10:35:19,538 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-26 10:35:19,822 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-26 10:35:22,041 WARN L205 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 334 DAG size of output: 260 [2021-03-26 10:35:22,618 WARN L205 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-26 10:35:22,895 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-26 10:35:23,165 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 85 [2021-03-26 10:35:23,547 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:35:23,831 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:35:24,556 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 10:35:25,151 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 10:35:25,261 INFO L154 LiptonReduction]: Checked pairs total: 54 [2021-03-26 10:35:25,261 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-26 10:35:25,261 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6927 [2021-03-26 10:35:25,262 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 37 transitions, 329 flow [2021-03-26 10:35:25,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:25,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:25,262 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] [2021-03-26 10:35:25,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 10:35:25,262 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:25,262 INFO L82 PathProgramCache]: Analyzing trace with hash -889764901, now seen corresponding path program 1 times [2021-03-26 10:35:25,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:25,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027077983] [2021-03-26 10:35:25,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:35:25,378 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 10:35:25,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 10:35:25,417 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-26 10:35:25,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 10:35:25,458 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-26 10:35:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 10:35:25,556 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-26 10:35:25,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 10:35:25,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 10:35:25,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:35:25,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 10:35:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:35:25,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027077983] [2021-03-26 10:35:25,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:35:25,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 10:35:25,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819513345] [2021-03-26 10:35:25,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 10:35:25,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:35:25,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 10:35:25,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-26 10:35:25,659 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 182 [2021-03-26 10:35:25,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 37 transitions, 329 flow. Second operand has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:25,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:35:25,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 182 [2021-03-26 10:35:25,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:35:25,826 INFO L129 PetriNetUnfolder]: 24/77 cut-off events. [2021-03-26 10:35:25,826 INFO L130 PetriNetUnfolder]: For 458/506 co-relation queries the response was YES. [2021-03-26 10:35:25,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 77 events. 24/77 cut-off events. For 458/506 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 252 event pairs, 0 based on Foata normal form. 18/91 useless extension candidates. Maximal degree in co-relation 360. Up to 27 conditions per place. [2021-03-26 10:35:25,827 INFO L132 encePairwiseOnDemand]: 172/182 looper letters, 6 selfloop transitions, 11 changer transitions 6/39 dead transitions. [2021-03-26 10:35:25,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 39 transitions, 395 flow [2021-03-26 10:35:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:35:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:35:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 755 transitions. [2021-03-26 10:35:25,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6913919413919414 [2021-03-26 10:35:25,830 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 755 transitions. [2021-03-26 10:35:25,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 755 transitions. [2021-03-26 10:35:25,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:35:25,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 755 transitions. [2021-03-26 10:35:25,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.83333333333333) internal successors, (755), 6 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:25,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:25,834 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:25,834 INFO L185 Difference]: Start difference. First operand has 58 places, 37 transitions, 329 flow. Second operand 6 states and 755 transitions. [2021-03-26 10:35:25,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 39 transitions, 395 flow [2021-03-26 10:35:25,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 39 transitions, 328 flow, removed 17 selfloop flow, removed 12 redundant places. [2021-03-26 10:35:25,837 INFO L241 Difference]: Finished difference. Result has 52 places, 32 transitions, 251 flow [2021-03-26 10:35:25,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=251, PETRI_PLACES=52, PETRI_TRANSITIONS=32} [2021-03-26 10:35:25,837 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 6 predicate places. [2021-03-26 10:35:25,837 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:35:25,837 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 32 transitions, 251 flow [2021-03-26 10:35:25,837 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 32 transitions, 251 flow [2021-03-26 10:35:25,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 32 transitions, 251 flow [2021-03-26 10:35:25,843 INFO L129 PetriNetUnfolder]: 14/48 cut-off events. [2021-03-26 10:35:25,844 INFO L130 PetriNetUnfolder]: For 127/129 co-relation queries the response was YES. [2021-03-26 10:35:25,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 48 events. 14/48 cut-off events. For 127/129 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 117 event pairs, 1 based on Foata normal form. 2/50 useless extension candidates. Maximal degree in co-relation 181. Up to 16 conditions per place. [2021-03-26 10:35:25,844 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-26 10:35:26,103 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-26 10:35:26,709 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2021-03-26 10:35:26,943 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-26 10:35:26,947 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 10:35:26,947 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:35:26,947 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1110 [2021-03-26 10:35:26,947 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 32 transitions, 254 flow [2021-03-26 10:35:26,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:35:26,948 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:35:26,948 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:35:26,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 10:35:26,948 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:35:26,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:35:26,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1545929904, now seen corresponding path program 1 times [2021-03-26 10:35:26,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:35:26,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806903366] [2021-03-26 10:35:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:35:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:35:26,991 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:35:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:35:27,018 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:35:27,039 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:35:27,039 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:35:27,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 10:35:27,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:35:27 BasicIcfg [2021-03-26 10:35:27,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:35:27,129 INFO L168 Benchmark]: Toolchain (without parser) took 26824.50 ms. Allocated memory was 377.5 MB in the beginning and 903.9 MB in the end (delta: 526.4 MB). Free memory was 340.5 MB in the beginning and 674.3 MB in the end (delta: -333.8 MB). Peak memory consumption was 194.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:27,130 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 377.5 MB. Free memory was 358.6 MB in the beginning and 358.5 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:35:27,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.20 ms. Allocated memory is still 377.5 MB. Free memory was 340.2 MB in the beginning and 338.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:27,130 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.07 ms. Allocated memory is still 377.5 MB. Free memory was 338.6 MB in the beginning and 335.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:27,130 INFO L168 Benchmark]: Boogie Preprocessor took 32.81 ms. Allocated memory is still 377.5 MB. Free memory was 335.4 MB in the beginning and 333.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:27,130 INFO L168 Benchmark]: RCFGBuilder took 1768.27 ms. Allocated memory is still 377.5 MB. Free memory was 333.3 MB in the beginning and 296.2 MB in the end (delta: 37.1 MB). Peak memory consumption was 167.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:27,130 INFO L168 Benchmark]: TraceAbstraction took 24533.95 ms. Allocated memory was 377.5 MB in the beginning and 903.9 MB in the end (delta: 526.4 MB). Free memory was 295.2 MB in the beginning and 674.3 MB in the end (delta: -379.1 MB). Peak memory consumption was 147.3 MB. Max. memory is 16.0 GB. [2021-03-26 10:35:27,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 377.5 MB. Free memory was 358.6 MB in the beginning and 358.5 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 434.20 ms. Allocated memory is still 377.5 MB. Free memory was 340.2 MB in the beginning and 338.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.07 ms. Allocated memory is still 377.5 MB. Free memory was 338.6 MB in the beginning and 335.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.81 ms. Allocated memory is still 377.5 MB. Free memory was 335.4 MB in the beginning and 333.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1768.27 ms. Allocated memory is still 377.5 MB. Free memory was 333.3 MB in the beginning and 296.2 MB in the end (delta: 37.1 MB). Peak memory consumption was 167.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 24533.95 ms. Allocated memory was 377.5 MB in the beginning and 903.9 MB in the end (delta: 526.4 MB). Free memory was 295.2 MB in the beginning and 674.3 MB in the end (delta: -379.1 MB). Peak memory consumption was 147.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7126.2ms, 100 PlacesBefore, 46 PlacesAfterwards, 92 TransitionsBefore, 37 TransitionsAfterwards, 1602 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 2709 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 1380, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 0, positive unconditional: 1380, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 0, positive unconditional: 1380, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1148, positive: 1112, positive conditional: 0, positive unconditional: 1112, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1148, positive: 1104, positive conditional: 0, positive unconditional: 1104, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 620, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 598, negative conditional: 0, negative unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1459, positive: 268, positive conditional: 0, positive unconditional: 268, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 1148, unknown conditional: 0, unknown unconditional: 1148] , Statistics on independence cache: Total cache size (in pairs): 1148, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3248.9ms, 43 PlacesBefore, 31 PlacesAfterwards, 32 TransitionsBefore, 22 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1040 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 281, positive: 202, positive conditional: 202, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 281, positive: 202, positive conditional: 28, positive unconditional: 174, negative: 79, negative conditional: 21, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 281, positive: 202, positive conditional: 28, positive unconditional: 174, negative: 79, negative conditional: 21, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 79, positive: 61, positive conditional: 8, positive unconditional: 53, negative: 18, negative conditional: 6, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 79, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 6, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 318, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 318, negative conditional: 94, negative unconditional: 225, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 281, positive: 141, positive conditional: 20, positive unconditional: 121, negative: 61, negative conditional: 15, negative unconditional: 46, unknown: 79, unknown conditional: 14, unknown unconditional: 65] , Statistics on independence cache: Total cache size (in pairs): 1227, Positive cache size: 1173, Positive conditional cache size: 8, Positive unconditional cache size: 1165, Negative cache size: 54, Negative conditional cache size: 6, Negative unconditional cache size: 48, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1030.5ms, 32 PlacesBefore, 31 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 444 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 85, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 85, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 85, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 14, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 212, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 212, negative conditional: 0, negative unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 85, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 1241, Positive cache size: 1181, Positive conditional cache size: 8, Positive unconditional cache size: 1173, Negative cache size: 60, Negative conditional cache size: 6, Negative unconditional cache size: 54, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 120.1ms, 35 PlacesBefore, 35 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 105 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 3, negative conditional: 1, negative unconditional: 2, 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: 1, positive conditional: 1, positive unconditional: 0, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 66, negative conditional: 3, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27, positive: 15, positive conditional: 2, positive unconditional: 13, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 8, unknown conditional: 3, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 1249, Positive cache size: 1186, Positive conditional cache size: 10, Positive unconditional cache size: 1176, Negative cache size: 63, Negative conditional cache size: 7, Negative unconditional cache size: 56, Eliminated conditions: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.0ms, 38 PlacesBefore, 38 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 105 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26, positive: 19, positive conditional: 4, positive unconditional: 15, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 4, positive unconditional: 15, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 26, positive: 19, positive conditional: 4, positive unconditional: 15, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1249, Positive cache size: 1186, Positive conditional cache size: 10, Positive unconditional cache size: 1176, Negative cache size: 63, Negative conditional cache size: 7, Negative unconditional cache size: 56, Eliminated conditions: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.2ms, 40 PlacesBefore, 40 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 89 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 17, positive conditional: 4, positive unconditional: 13, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 17, positive conditional: 4, positive unconditional: 13, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 16, positive conditional: 4, positive unconditional: 12, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1251, Positive cache size: 1187, Positive conditional cache size: 10, Positive unconditional cache size: 1177, Negative cache size: 64, Negative conditional cache size: 7, Negative unconditional cache size: 57, Eliminated conditions: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.6ms, 42 PlacesBefore, 42 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 81 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 25, positive: 18, positive conditional: 7, positive unconditional: 11, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 18, positive conditional: 7, positive unconditional: 11, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25, positive: 17, positive conditional: 7, positive unconditional: 10, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 2, unknown conditional: 1, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1253, Positive cache size: 1188, Positive conditional cache size: 10, Positive unconditional cache size: 1178, Negative cache size: 65, Negative conditional cache size: 8, Negative unconditional cache size: 57, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 696.7ms, 44 PlacesBefore, 44 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 51 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 27, positive conditional: 12, positive unconditional: 15, negative: 8, negative conditional: 4, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 27, positive conditional: 12, positive unconditional: 15, negative: 8, negative conditional: 4, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 35, positive: 24, positive conditional: 12, positive unconditional: 12, negative: 8, negative conditional: 4, negative unconditional: 4, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1256, Positive cache size: 1191, Positive conditional cache size: 10, Positive unconditional cache size: 1181, Negative cache size: 65, Negative conditional cache size: 8, Negative unconditional cache size: 57, Eliminated conditions: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.0ms, 47 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 85 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 48, positive: 39, positive conditional: 11, positive unconditional: 28, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 39, positive conditional: 11, positive unconditional: 28, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 35, positive conditional: 10, positive unconditional: 25, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1260, Positive cache size: 1195, Positive conditional cache size: 11, Positive unconditional cache size: 1184, Negative cache size: 65, Negative conditional cache size: 8, Negative unconditional cache size: 57, Eliminated conditions: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.1ms, 49 PlacesBefore, 49 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 48, positive: 39, positive conditional: 18, positive unconditional: 21, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 39, positive conditional: 18, positive unconditional: 21, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 38, positive conditional: 17, positive unconditional: 21, negative: 9, negative conditional: 3, negative unconditional: 6, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1261, Positive cache size: 1196, Positive conditional cache size: 12, Positive unconditional cache size: 1184, Negative cache size: 65, Negative conditional cache size: 8, Negative unconditional cache size: 57, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.0ms, 51 PlacesBefore, 51 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 147 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 65, positive: 54, positive conditional: 25, positive unconditional: 29, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 65, positive: 54, positive conditional: 25, positive unconditional: 29, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 5, positive unconditional: 1, 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: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 65, positive: 48, positive conditional: 20, positive unconditional: 28, negative: 10, negative conditional: 3, negative unconditional: 7, unknown: 7, unknown conditional: 5, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1268, Positive cache size: 1202, Positive conditional cache size: 17, Positive unconditional cache size: 1185, Negative cache size: 66, Negative conditional cache size: 8, Negative unconditional cache size: 58, Eliminated conditions: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.1ms, 55 PlacesBefore, 54 PlacesAfterwards, 43 TransitionsBefore, 42 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 255 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, positive: 116, positive conditional: 116, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 130, positive: 116, positive conditional: 46, positive unconditional: 70, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 130, positive: 116, positive conditional: 46, positive unconditional: 70, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 130, positive: 112, positive conditional: 44, positive unconditional: 68, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1272, Positive cache size: 1206, Positive conditional cache size: 19, Positive unconditional cache size: 1187, Negative cache size: 66, Negative conditional cache size: 8, Negative unconditional cache size: 58, Eliminated conditions: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.1ms, 58 PlacesBefore, 58 PlacesAfterwards, 49 TransitionsBefore, 48 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 29 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 29, positive: 29, positive conditional: 22, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 22, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 29, positive: 29, positive conditional: 22, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1272, Positive cache size: 1206, Positive conditional cache size: 19, Positive unconditional cache size: 1187, Negative cache size: 66, Negative conditional cache size: 8, Negative unconditional cache size: 58, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.4ms, 62 PlacesBefore, 62 PlacesAfterwards, 52 TransitionsBefore, 51 TransitionsAfterwards, 408 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 24, positive conditional: 22, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 22, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 24, positive: 24, positive conditional: 22, positive unconditional: 2, 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): 1272, Positive cache size: 1206, Positive conditional cache size: 19, Positive unconditional cache size: 1187, Negative cache size: 66, Negative conditional cache size: 8, Negative unconditional cache size: 58, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.4ms, 61 PlacesBefore, 60 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 304 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12, positive: 12, positive conditional: 6, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 6, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 12, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1273, Positive cache size: 1207, Positive conditional cache size: 19, Positive unconditional cache size: 1188, Negative cache size: 66, Negative conditional cache size: 8, Negative unconditional cache size: 58, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6926.6ms, 65 PlacesBefore, 58 PlacesAfterwards, 42 TransitionsBefore, 37 TransitionsAfterwards, 208 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 54, positive: 54, positive conditional: 42, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 42, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 45, positive conditional: 33, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1282, Positive cache size: 1216, Positive conditional cache size: 28, Positive unconditional cache size: 1188, Negative cache size: 66, Negative conditional cache size: 8, Negative unconditional cache size: 58, Eliminated conditions: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1109.3ms, 52 PlacesBefore, 52 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1284, Positive cache size: 1218, Positive conditional cache size: 28, Positive unconditional cache size: 1190, Negative cache size: 66, Negative conditional cache size: 8, Negative unconditional cache size: 58, Eliminated conditions: 3 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L813] 0 pthread_t t2186; [L814] FCALL, FORK 0 pthread_create(&t2186, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L739] 1 y$w_buff1 = y$w_buff0 [L740] 1 y$w_buff0 = 2 [L741] 1 y$w_buff1_used = y$w_buff0_used [L742] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L744] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L745] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L746] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L747] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L748] 1 y$r_buff0_thd1 = (_Bool)1 [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L815] 0 pthread_t t2187; [L816] FCALL, FORK 0 pthread_create(&t2187, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L817] 0 pthread_t t2188; [L818] FCALL, FORK 0 pthread_create(&t2188, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L785] 3 __unbuffered_p2_EAX = x [L788] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 3 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=54, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 24348.7ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1560.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7193.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 70 SDtfs, 38 SDslu, 21 SDs, 0 SdLazy, 352 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 406.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 676.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=405occurred in iteration=13, InterpolantAutomatonStates: 69, 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: 44.4ms SsaConstructionTime, 448.8ms SatisfiabilityAnalysisTime, 1278.8ms InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 1907 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...