/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:47:11,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:47:11,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:47:11,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:47:11,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:47:11,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:47:11,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:47:11,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:47:11,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:47:11,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:47:11,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:47:11,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:47:11,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:47:11,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:47:11,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:47:11,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:47:11,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:47:11,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:47:11,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:47:11,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:47:11,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:47:11,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:47:11,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:47:11,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:47:11,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:47:11,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:47:11,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:47:11,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:47:11,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 00:47:11,689 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:47:11,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:47:11,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:47:11,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:47:11,693 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:47:11,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:47:11,693 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:47:11,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:47:11,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:47:11,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:47:11,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:47:11,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:47:11,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:47:11,695 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:47:11,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:47:11,695 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:47:11,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:47:11,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:47:11,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:47:11,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:47:11,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:47:11,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:47:11,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:47:11,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:47:11,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:47:11,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:47:11,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:47:11,697 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:47:11,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:47:11,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:47:11,697 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:47:12,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:47:12,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:47:12,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:47:12,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:47:12,046 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:47:12,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-03-26 00:47:12,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7a41cfe5/fd40ff39427d4736acd766d86a145e94/FLAG6948836b8 [2021-03-26 00:47:12,641 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:47:12,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-03-26 00:47:12,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7a41cfe5/fd40ff39427d4736acd766d86a145e94/FLAG6948836b8 [2021-03-26 00:47:13,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7a41cfe5/fd40ff39427d4736acd766d86a145e94 [2021-03-26 00:47:13,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:47:13,119 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:47:13,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:47:13,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:47:13,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:47:13,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e84a089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13, skipping insertion in model container [2021-03-26 00:47:13,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:47:13,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:47:13,310 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/safe027_tso.oepc.i[950,963] [2021-03-26 00:47:13,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:47:13,498 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:47:13,510 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-03-26 00:47:13,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:47:13,627 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:47:13,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13 WrapperNode [2021-03-26 00:47:13,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:47:13,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:47:13,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:47:13,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:47:13,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:47:13,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:47:13,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:47:13,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:47:13,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... [2021-03-26 00:47:13,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:47:13,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:47:13,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:47:13,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:47:13,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:47:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:47:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:47:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:47:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:47:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:47:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:47:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:47:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:47:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:47:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:47:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 00:47:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 00:47:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:47:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:47:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:47:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:47:13,802 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:47:14,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:47:14,141 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:47:14,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:47:14 BoogieIcfgContainer [2021-03-26 00:47:14,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:47:14,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:47:14,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:47:14,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:47:14,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:47:13" (1/3) ... [2021-03-26 00:47:14,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47eb12d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:47:14, skipping insertion in model container [2021-03-26 00:47:14,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:13" (2/3) ... [2021-03-26 00:47:14,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47eb12d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:47:14, skipping insertion in model container [2021-03-26 00:47:14,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:47:14" (3/3) ... [2021-03-26 00:47:14,149 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-03-26 00:47:14,154 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:47:14,158 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:47:14,158 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:47:14,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,193 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,193 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,195 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,195 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,195 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,195 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,205 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,205 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,206 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,207 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,207 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,208 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,208 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,208 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,209 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,209 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,210 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,210 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,210 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,213 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,216 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,216 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,216 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,220 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,220 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,220 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,220 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,223 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,224 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,229 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,229 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:14,233 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:47:14,249 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 00:47:14,277 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:47:14,277 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:47:14,277 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:47:14,277 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:47:14,277 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:47:14,277 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:47:14,277 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:47:14,277 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:47:14,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-03-26 00:47:14,343 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-26 00:47:14,343 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:14,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-26 00:47:14,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-03-26 00:47:14,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:14,351 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:14,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:14,364 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:14,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:14,380 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-03-26 00:47:14,380 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:14,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-26 00:47:14,383 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-26 00:47:15,972 INFO L154 LiptonReduction]: Checked pairs total: 1387 [2021-03-26 00:47:15,973 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-26 00:47:15,975 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1625 [2021-03-26 00:47:15,985 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 00:47:15,985 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:15,985 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:15,986 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:15,986 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:15,991 INFO L82 PathProgramCache]: Analyzing trace with hash 654156635, now seen corresponding path program 1 times [2021-03-26 00:47:15,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:15,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197341218] [2021-03-26 00:47:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:16,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:16,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:16,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:16,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:16,261 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 00:47:16,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197341218] [2021-03-26 00:47:16,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:16,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:16,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231271268] [2021-03-26 00:47:16,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:47:16,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:16,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:47:16,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:47:16,282 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 131 [2021-03-26 00:47:16,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:16,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:16,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 131 [2021-03-26 00:47:16,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:16,301 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 00:47:16,301 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:16,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:47:16,303 INFO L132 encePairwiseOnDemand]: 128/131 looper letters, 1 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2021-03-26 00:47:16,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 68 flow [2021-03-26 00:47:16,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:16,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-03-26 00:47:16,315 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9185750636132316 [2021-03-26 00:47:16,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-03-26 00:47:16,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-03-26 00:47:16,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:16,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-03-26 00:47:16,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:16,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:16,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:16,337 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 361 transitions. [2021-03-26 00:47:16,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 68 flow [2021-03-26 00:47:16,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:16,351 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:16,352 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-26 00:47:16,353 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-26 00:47:16,353 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:16,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:16,354 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:16,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:16,364 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 00:47:16,364 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 00:47:16,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:47:16,366 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 00:47:16,987 INFO L154 LiptonReduction]: Checked pairs total: 502 [2021-03-26 00:47:16,987 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:47:16,988 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 635 [2021-03-26 00:47:16,990 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 58 flow [2021-03-26 00:47:16,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:16,991 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:16,991 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:16,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:47:16,991 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:16,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:16,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1195981847, now seen corresponding path program 1 times [2021-03-26 00:47:16,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:16,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746873157] [2021-03-26 00:47:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:17,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:17,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:17,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:17,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:17,086 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:17,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:17,095 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 00:47:17,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746873157] [2021-03-26 00:47:17,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:17,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:17,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976819970] [2021-03-26 00:47:17,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:17,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:17,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:17,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:17,100 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2021-03-26 00:47:17,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:17,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2021-03-26 00:47:17,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:17,168 INFO L129 PetriNetUnfolder]: 38/105 cut-off events. [2021-03-26 00:47:17,168 INFO L130 PetriNetUnfolder]: For 22/48 co-relation queries the response was YES. [2021-03-26 00:47:17,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 105 events. 38/105 cut-off events. For 22/48 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 389 event pairs, 3 based on Foata normal form. 5/101 useless extension candidates. Maximal degree in co-relation 202. Up to 43 conditions per place. [2021-03-26 00:47:17,171 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 10 selfloop transitions, 12 changer transitions 0/35 dead transitions. [2021-03-26 00:47:17,171 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 141 flow [2021-03-26 00:47:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2021-03-26 00:47:17,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8059259259259259 [2021-03-26 00:47:17,176 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2021-03-26 00:47:17,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2021-03-26 00:47:17,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:17,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2021-03-26 00:47:17,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,182 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,182 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 58 flow. Second operand 5 states and 544 transitions. [2021-03-26 00:47:17,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 141 flow [2021-03-26 00:47:17,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:17,183 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:17,184 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-26 00:47:17,184 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-26 00:47:17,184 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:17,185 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:17,185 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:17,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:17,199 INFO L129 PetriNetUnfolder]: 29/93 cut-off events. [2021-03-26 00:47:17,199 INFO L130 PetriNetUnfolder]: For 32/59 co-relation queries the response was YES. [2021-03-26 00:47:17,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 93 events. 29/93 cut-off events. For 32/59 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 353 event pairs, 12 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 237. Up to 49 conditions per place. [2021-03-26 00:47:17,203 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-26 00:47:17,379 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 00:47:17,633 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 00:47:17,698 INFO L154 LiptonReduction]: Checked pairs total: 238 [2021-03-26 00:47:17,698 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:17,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 514 [2021-03-26 00:47:17,699 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 132 flow [2021-03-26 00:47:17,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,700 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:17,700 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:17,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:47:17,700 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:17,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:17,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1825769221, now seen corresponding path program 1 times [2021-03-26 00:47:17,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:17,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943838845] [2021-03-26 00:47:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:17,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:17,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:17,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:17,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:17,745 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:17,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:17,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943838845] [2021-03-26 00:47:17,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:17,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:17,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652758077] [2021-03-26 00:47:17,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:17,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:17,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:17,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:17,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2021-03-26 00:47:17,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 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 00:47:17,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:17,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2021-03-26 00:47:17,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:17,775 INFO L129 PetriNetUnfolder]: 20/74 cut-off events. [2021-03-26 00:47:17,776 INFO L130 PetriNetUnfolder]: For 74/192 co-relation queries the response was YES. [2021-03-26 00:47:17,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 74 events. 20/74 cut-off events. For 74/192 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 248 event pairs, 4 based on Foata normal form. 2/68 useless extension candidates. Maximal degree in co-relation 228. Up to 37 conditions per place. [2021-03-26 00:47:17,777 INFO L132 encePairwiseOnDemand]: 133/136 looper letters, 14 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2021-03-26 00:47:17,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 33 transitions, 192 flow [2021-03-26 00:47:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:17,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:17,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2021-03-26 00:47:17,778 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2021-03-26 00:47:17,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2021-03-26 00:47:17,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2021-03-26 00:47:17,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:17,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2021-03-26 00:47:17,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,781 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 132 flow. Second operand 3 states and 342 transitions. [2021-03-26 00:47:17,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 33 transitions, 192 flow [2021-03-26 00:47:17,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 183 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:47:17,787 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 138 flow [2021-03-26 00:47:17,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-26 00:47:17,787 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2021-03-26 00:47:17,787 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:17,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 138 flow [2021-03-26 00:47:17,788 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 138 flow [2021-03-26 00:47:17,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 138 flow [2021-03-26 00:47:17,795 INFO L129 PetriNetUnfolder]: 24/84 cut-off events. [2021-03-26 00:47:17,795 INFO L130 PetriNetUnfolder]: For 63/115 co-relation queries the response was YES. [2021-03-26 00:47:17,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 84 events. 24/84 cut-off events. For 63/115 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 308 event pairs, 12 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 218. Up to 39 conditions per place. [2021-03-26 00:47:17,796 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-26 00:47:17,805 INFO L154 LiptonReduction]: Checked pairs total: 139 [2021-03-26 00:47:17,805 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:17,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 00:47:17,810 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 138 flow [2021-03-26 00:47:17,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 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 00:47:17,811 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:17,811 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:17,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:47:17,811 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:17,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:17,812 INFO L82 PathProgramCache]: Analyzing trace with hash 959567040, now seen corresponding path program 1 times [2021-03-26 00:47:17,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:17,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457269329] [2021-03-26 00:47:17,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:17,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:17,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:17,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:17,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:17,853 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:17,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:17,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457269329] [2021-03-26 00:47:17,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:17,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:17,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891352901] [2021-03-26 00:47:17,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:47:17,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:17,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:47:17,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:47:17,865 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-03-26 00:47:17,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:17,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-03-26 00:47:17,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:17,905 INFO L129 PetriNetUnfolder]: 25/85 cut-off events. [2021-03-26 00:47:17,905 INFO L130 PetriNetUnfolder]: For 172/308 co-relation queries the response was YES. [2021-03-26 00:47:17,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 85 events. 25/85 cut-off events. For 172/308 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 304 event pairs, 2 based on Foata normal form. 7/88 useless extension candidates. Maximal degree in co-relation 273. Up to 38 conditions per place. [2021-03-26 00:47:17,908 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 8 selfloop transitions, 5 changer transitions 10/36 dead transitions. [2021-03-26 00:47:17,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 233 flow [2021-03-26 00:47:17,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:17,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:17,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-26 00:47:17,911 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7941176470588235 [2021-03-26 00:47:17,911 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-26 00:47:17,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-26 00:47:17,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:17,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-26 00:47:17,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,914 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,914 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 138 flow. Second operand 4 states and 432 transitions. [2021-03-26 00:47:17,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 233 flow [2021-03-26 00:47:17,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 221 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:17,917 INFO L241 Difference]: Finished difference. Result has 42 places, 24 transitions, 124 flow [2021-03-26 00:47:17,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=42, PETRI_TRANSITIONS=24} [2021-03-26 00:47:17,918 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2021-03-26 00:47:17,918 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:17,918 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 24 transitions, 124 flow [2021-03-26 00:47:17,918 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 24 transitions, 124 flow [2021-03-26 00:47:17,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 24 transitions, 124 flow [2021-03-26 00:47:17,923 INFO L129 PetriNetUnfolder]: 9/44 cut-off events. [2021-03-26 00:47:17,923 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-03-26 00:47:17,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 44 events. 9/44 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 6 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 124. Up to 21 conditions per place. [2021-03-26 00:47:17,925 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 00:47:17,936 INFO L154 LiptonReduction]: Checked pairs total: 78 [2021-03-26 00:47:17,936 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:17,936 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 00:47:17,938 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 24 transitions, 124 flow [2021-03-26 00:47:17,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:17,938 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:17,940 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:17,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:47:17,941 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:17,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:17,947 INFO L82 PathProgramCache]: Analyzing trace with hash -884787457, now seen corresponding path program 1 times [2021-03-26 00:47:17,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:17,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714411119] [2021-03-26 00:47:17,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:17,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:17,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:18,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714411119] [2021-03-26 00:47:18,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:18,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:18,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916097889] [2021-03-26 00:47:18,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:18,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:18,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:18,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:18,009 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2021-03-26 00:47:18,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 24 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:18,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2021-03-26 00:47:18,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:18,036 INFO L129 PetriNetUnfolder]: 18/72 cut-off events. [2021-03-26 00:47:18,037 INFO L130 PetriNetUnfolder]: For 177/178 co-relation queries the response was YES. [2021-03-26 00:47:18,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 72 events. 18/72 cut-off events. For 177/178 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 227 event pairs, 9 based on Foata normal form. 8/77 useless extension candidates. Maximal degree in co-relation 221. Up to 35 conditions per place. [2021-03-26 00:47:18,037 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 4 selfloop transitions, 5 changer transitions 3/29 dead transitions. [2021-03-26 00:47:18,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 29 transitions, 179 flow [2021-03-26 00:47:18,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:18,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2021-03-26 00:47:18,039 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492647058823529 [2021-03-26 00:47:18,039 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 462 transitions. [2021-03-26 00:47:18,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 462 transitions. [2021-03-26 00:47:18,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:18,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 462 transitions. [2021-03-26 00:47:18,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,043 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,043 INFO L185 Difference]: Start difference. First operand has 42 places, 24 transitions, 124 flow. Second operand 4 states and 462 transitions. [2021-03-26 00:47:18,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 29 transitions, 179 flow [2021-03-26 00:47:18,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 154 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-26 00:47:18,047 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:18,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-26 00:47:18,047 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-26 00:47:18,047 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:18,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:18,048 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:18,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:18,053 INFO L129 PetriNetUnfolder]: 9/44 cut-off events. [2021-03-26 00:47:18,053 INFO L130 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2021-03-26 00:47:18,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 44 events. 9/44 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 6 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 123. Up to 21 conditions per place. [2021-03-26 00:47:18,054 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 00:47:18,059 INFO L154 LiptonReduction]: Checked pairs total: 58 [2021-03-26 00:47:18,059 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:18,060 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 00:47:18,063 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:18,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,064 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:18,064 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:18,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:47:18,064 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:18,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:18,065 INFO L82 PathProgramCache]: Analyzing trace with hash 898757667, now seen corresponding path program 1 times [2021-03-26 00:47:18,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:18,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744727352] [2021-03-26 00:47:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:18,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,131 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:18,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:18,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:18,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744727352] [2021-03-26 00:47:18,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:18,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:18,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012104622] [2021-03-26 00:47:18,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:18,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:18,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:18,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:18,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:47:18,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 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 00:47:18,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:18,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:47:18,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:18,206 INFO L129 PetriNetUnfolder]: 175/314 cut-off events. [2021-03-26 00:47:18,206 INFO L130 PetriNetUnfolder]: For 1292/1469 co-relation queries the response was YES. [2021-03-26 00:47:18,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 314 events. 175/314 cut-off events. For 1292/1469 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1435 event pairs, 95 based on Foata normal form. 32/307 useless extension candidates. Maximal degree in co-relation 863. Up to 211 conditions per place. [2021-03-26 00:47:18,210 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 10 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2021-03-26 00:47:18,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 186 flow [2021-03-26 00:47:18,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:18,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2021-03-26 00:47:18,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8117647058823529 [2021-03-26 00:47:18,212 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2021-03-26 00:47:18,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2021-03-26 00:47:18,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:18,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2021-03-26 00:47:18,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,215 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,215 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 120 flow. Second operand 5 states and 552 transitions. [2021-03-26 00:47:18,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 186 flow [2021-03-26 00:47:18,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:18,218 INFO L241 Difference]: Finished difference. Result has 44 places, 33 transitions, 179 flow [2021-03-26 00:47:18,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2021-03-26 00:47:18,218 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2021-03-26 00:47:18,218 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:18,218 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 33 transitions, 179 flow [2021-03-26 00:47:18,219 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 33 transitions, 179 flow [2021-03-26 00:47:18,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 33 transitions, 179 flow [2021-03-26 00:47:18,243 INFO L129 PetriNetUnfolder]: 180/319 cut-off events. [2021-03-26 00:47:18,243 INFO L130 PetriNetUnfolder]: For 662/817 co-relation queries the response was YES. [2021-03-26 00:47:18,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 319 events. 180/319 cut-off events. For 662/817 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1440 event pairs, 97 based on Foata normal form. 1/280 useless extension candidates. Maximal degree in co-relation 1046. Up to 238 conditions per place. [2021-03-26 00:47:18,247 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-26 00:47:18,289 INFO L154 LiptonReduction]: Checked pairs total: 60 [2021-03-26 00:47:18,289 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:18,289 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-26 00:47:18,291 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 173 flow [2021-03-26 00:47:18,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 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 00:47:18,292 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:18,292 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:18,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:47:18,294 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:18,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:18,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1897973574, now seen corresponding path program 1 times [2021-03-26 00:47:18,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:18,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569596846] [2021-03-26 00:47:18,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:18,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,345 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:18,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:18,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:18,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569596846] [2021-03-26 00:47:18,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:18,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:18,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022467726] [2021-03-26 00:47:18,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:47:18,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:18,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:47:18,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:47:18,353 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:47:18,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:18,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:47:18,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:18,422 INFO L129 PetriNetUnfolder]: 119/237 cut-off events. [2021-03-26 00:47:18,422 INFO L130 PetriNetUnfolder]: For 987/1301 co-relation queries the response was YES. [2021-03-26 00:47:18,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 237 events. 119/237 cut-off events. For 987/1301 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1026 event pairs, 30 based on Foata normal form. 59/277 useless extension candidates. Maximal degree in co-relation 955. Up to 184 conditions per place. [2021-03-26 00:47:18,425 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 10 selfloop transitions, 14 changer transitions 0/41 dead transitions. [2021-03-26 00:47:18,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 273 flow [2021-03-26 00:47:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:47:18,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:47:18,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2021-03-26 00:47:18,427 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8112745098039216 [2021-03-26 00:47:18,427 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 662 transitions. [2021-03-26 00:47:18,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 662 transitions. [2021-03-26 00:47:18,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:18,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 662 transitions. [2021-03-26 00:47:18,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,431 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,431 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 173 flow. Second operand 6 states and 662 transitions. [2021-03-26 00:47:18,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 273 flow [2021-03-26 00:47:18,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 266 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:18,434 INFO L241 Difference]: Finished difference. Result has 48 places, 37 transitions, 262 flow [2021-03-26 00:47:18,434 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2021-03-26 00:47:18,434 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-26 00:47:18,434 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:18,434 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 37 transitions, 262 flow [2021-03-26 00:47:18,435 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 37 transitions, 262 flow [2021-03-26 00:47:18,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 37 transitions, 262 flow [2021-03-26 00:47:18,456 INFO L129 PetriNetUnfolder]: 120/238 cut-off events. [2021-03-26 00:47:18,456 INFO L130 PetriNetUnfolder]: For 948/1141 co-relation queries the response was YES. [2021-03-26 00:47:18,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 238 events. 120/238 cut-off events. For 948/1141 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1081 event pairs, 31 based on Foata normal form. 8/227 useless extension candidates. Maximal degree in co-relation 1106. Up to 185 conditions per place. [2021-03-26 00:47:18,459 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-26 00:47:18,482 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-26 00:47:18,482 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:18,482 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 00:47:18,485 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 254 flow [2021-03-26 00:47:18,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:18,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:18,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:47:18,486 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:18,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:18,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1615695073, now seen corresponding path program 1 times [2021-03-26 00:47:18,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:18,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553482484] [2021-03-26 00:47:18,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:18,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,552 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:18,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:18,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553482484] [2021-03-26 00:47:18,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:18,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:47:18,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514265228] [2021-03-26 00:47:18,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:47:18,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:18,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:47:18,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:47:18,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:47:18,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:18,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:47:18,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:18,637 INFO L129 PetriNetUnfolder]: 62/146 cut-off events. [2021-03-26 00:47:18,637 INFO L130 PetriNetUnfolder]: For 931/1154 co-relation queries the response was YES. [2021-03-26 00:47:18,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 146 events. 62/146 cut-off events. For 931/1154 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 551 event pairs, 6 based on Foata normal form. 58/195 useless extension candidates. Maximal degree in co-relation 751. Up to 114 conditions per place. [2021-03-26 00:47:18,639 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 6 selfloop transitions, 18 changer transitions 4/45 dead transitions. [2021-03-26 00:47:18,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 396 flow [2021-03-26 00:47:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:47:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:47:18,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 772 transitions. [2021-03-26 00:47:18,641 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8109243697478992 [2021-03-26 00:47:18,641 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 772 transitions. [2021-03-26 00:47:18,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 772 transitions. [2021-03-26 00:47:18,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:18,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 772 transitions. [2021-03-26 00:47:18,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,646 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,646 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 254 flow. Second operand 7 states and 772 transitions. [2021-03-26 00:47:18,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 396 flow [2021-03-26 00:47:18,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 334 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:18,649 INFO L241 Difference]: Finished difference. Result has 51 places, 41 transitions, 314 flow [2021-03-26 00:47:18,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=314, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2021-03-26 00:47:18,649 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2021-03-26 00:47:18,649 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:18,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 41 transitions, 314 flow [2021-03-26 00:47:18,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 41 transitions, 314 flow [2021-03-26 00:47:18,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 314 flow [2021-03-26 00:47:18,662 INFO L129 PetriNetUnfolder]: 59/142 cut-off events. [2021-03-26 00:47:18,663 INFO L130 PetriNetUnfolder]: For 449/481 co-relation queries the response was YES. [2021-03-26 00:47:18,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 142 events. 59/142 cut-off events. For 449/481 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 609 event pairs, 6 based on Foata normal form. 2/136 useless extension candidates. Maximal degree in co-relation 643. Up to 102 conditions per place. [2021-03-26 00:47:18,665 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 00:47:18,673 INFO L154 LiptonReduction]: Checked pairs total: 70 [2021-03-26 00:47:18,673 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:18,673 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 00:47:18,674 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 304 flow [2021-03-26 00:47:18,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,674 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:18,674 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:18,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:47:18,675 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:18,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:18,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1507604274, now seen corresponding path program 1 times [2021-03-26 00:47:18,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:18,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856576696] [2021-03-26 00:47:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:18,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:18,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:18,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856576696] [2021-03-26 00:47:18,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:18,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:18,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359856669] [2021-03-26 00:47:18,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:18,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:18,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:18,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:18,728 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2021-03-26 00:47:18,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:18,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2021-03-26 00:47:18,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:18,760 INFO L129 PetriNetUnfolder]: 65/153 cut-off events. [2021-03-26 00:47:18,760 INFO L130 PetriNetUnfolder]: For 669/730 co-relation queries the response was YES. [2021-03-26 00:47:18,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 153 events. 65/153 cut-off events. For 669/730 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 591 event pairs, 5 based on Foata normal form. 7/149 useless extension candidates. Maximal degree in co-relation 667. Up to 106 conditions per place. [2021-03-26 00:47:18,762 INFO L132 encePairwiseOnDemand]: 133/136 looper letters, 6 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2021-03-26 00:47:18,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 38 transitions, 285 flow [2021-03-26 00:47:18,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:18,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:18,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 464 transitions. [2021-03-26 00:47:18,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2021-03-26 00:47:18,764 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 464 transitions. [2021-03-26 00:47:18,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 464 transitions. [2021-03-26 00:47:18,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:18,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 464 transitions. [2021-03-26 00:47:18,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,767 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,767 INFO L185 Difference]: Start difference. First operand has 51 places, 40 transitions, 304 flow. Second operand 4 states and 464 transitions. [2021-03-26 00:47:18,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 38 transitions, 285 flow [2021-03-26 00:47:18,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 244 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:18,771 INFO L241 Difference]: Finished difference. Result has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:18,771 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2021-03-26 00:47:18,772 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 00:47:18,772 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:18,772 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:18,772 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:18,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:18,783 INFO L129 PetriNetUnfolder]: 64/150 cut-off events. [2021-03-26 00:47:18,783 INFO L130 PetriNetUnfolder]: For 323/337 co-relation queries the response was YES. [2021-03-26 00:47:18,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 150 events. 64/150 cut-off events. For 323/337 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 620 event pairs, 6 based on Foata normal form. 1/141 useless extension candidates. Maximal degree in co-relation 534. Up to 71 conditions per place. [2021-03-26 00:47:18,785 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 00:47:18,787 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:47:18,787 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:18,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 00:47:18,789 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:18,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,789 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:18,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:18,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:47:18,789 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:18,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:18,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1973137346, now seen corresponding path program 2 times [2021-03-26 00:47:18,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:18,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511752107] [2021-03-26 00:47:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:18,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:18,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:18,847 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:18,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:18,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:18,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511752107] [2021-03-26 00:47:18,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:18,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:47:18,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975439] [2021-03-26 00:47:18,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 00:47:18,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:18,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 00:47:18,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-26 00:47:18,857 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:47:18,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 235 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:18,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:47:18,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:18,934 INFO L129 PetriNetUnfolder]: 58/140 cut-off events. [2021-03-26 00:47:18,934 INFO L130 PetriNetUnfolder]: For 384/508 co-relation queries the response was YES. [2021-03-26 00:47:18,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 140 events. 58/140 cut-off events. For 384/508 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 524 event pairs, 2 based on Foata normal form. 48/178 useless extension candidates. Maximal degree in co-relation 580. Up to 68 conditions per place. [2021-03-26 00:47:18,935 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 2 selfloop transitions, 17 changer transitions 10/42 dead transitions. [2021-03-26 00:47:18,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 331 flow [2021-03-26 00:47:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 00:47:18,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 00:47:18,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 874 transitions. [2021-03-26 00:47:18,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8033088235294118 [2021-03-26 00:47:18,938 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 874 transitions. [2021-03-26 00:47:18,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 874 transitions. [2021-03-26 00:47:18,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:18,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 874 transitions. [2021-03-26 00:47:18,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.25) internal successors, (874), 8 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,943 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:18,943 INFO L185 Difference]: Start difference. First operand has 50 places, 37 transitions, 235 flow. Second operand 8 states and 874 transitions. [2021-03-26 00:47:18,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 331 flow [2021-03-26 00:47:18,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 42 transitions, 313 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-26 00:47:18,948 INFO L241 Difference]: Finished difference. Result has 59 places, 32 transitions, 235 flow [2021-03-26 00:47:18,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=235, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2021-03-26 00:47:18,948 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2021-03-26 00:47:18,949 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:18,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 32 transitions, 235 flow [2021-03-26 00:47:18,949 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 32 transitions, 235 flow [2021-03-26 00:47:18,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 32 transitions, 235 flow [2021-03-26 00:47:18,954 INFO L129 PetriNetUnfolder]: 22/62 cut-off events. [2021-03-26 00:47:18,954 INFO L130 PetriNetUnfolder]: For 122/139 co-relation queries the response was YES. [2021-03-26 00:47:18,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 62 events. 22/62 cut-off events. For 122/139 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 160 event pairs, 0 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 234. Up to 24 conditions per place. [2021-03-26 00:47:18,955 INFO L142 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-26 00:47:19,250 INFO L154 LiptonReduction]: Checked pairs total: 41 [2021-03-26 00:47:19,250 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 00:47:19,250 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-03-26 00:47:19,252 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 29 transitions, 245 flow [2021-03-26 00:47:19,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:19,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:19,253 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 00:47:19,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:47:19,254 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:19,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:19,254 INFO L82 PathProgramCache]: Analyzing trace with hash -349431497, now seen corresponding path program 1 times [2021-03-26 00:47:19,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:19,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798054028] [2021-03-26 00:47:19,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:19,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:19,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:19,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:19,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:19,319 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:19,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:47:19,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798054028] [2021-03-26 00:47:19,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:19,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:19,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548056524] [2021-03-26 00:47:19,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:19,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:19,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:19,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:19,330 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 143 [2021-03-26 00:47:19,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 29 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:19,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:19,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 143 [2021-03-26 00:47:19,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:19,358 INFO L129 PetriNetUnfolder]: 17/49 cut-off events. [2021-03-26 00:47:19,359 INFO L130 PetriNetUnfolder]: For 223/247 co-relation queries the response was YES. [2021-03-26 00:47:19,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 49 events. 17/49 cut-off events. For 223/247 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 106 event pairs, 0 based on Foata normal form. 6/52 useless extension candidates. Maximal degree in co-relation 220. Up to 17 conditions per place. [2021-03-26 00:47:19,359 INFO L132 encePairwiseOnDemand]: 134/143 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2021-03-26 00:47:19,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 28 transitions, 235 flow [2021-03-26 00:47:19,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:19,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:19,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2021-03-26 00:47:19,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7398601398601399 [2021-03-26 00:47:19,361 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2021-03-26 00:47:19,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2021-03-26 00:47:19,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:19,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2021-03-26 00:47:19,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:19,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 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 00:47:19,364 INFO L81 ComplementDD]: Finished complementDD. Result has 6 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 00:47:19,364 INFO L185 Difference]: Start difference. First operand has 52 places, 29 transitions, 245 flow. Second operand 5 states and 529 transitions. [2021-03-26 00:47:19,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 28 transitions, 235 flow [2021-03-26 00:47:19,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 117 flow, removed 22 selfloop flow, removed 15 redundant places. [2021-03-26 00:47:19,365 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-03-26 00:47:19,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-03-26 00:47:19,365 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-26 00:47:19,366 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:19,366 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 00:47:19,366 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 00:47:19,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:47:19,366 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:47:19,366 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:19,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 00:47:19,366 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:47:19,366 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:47:19,366 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:19,367 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:47:19,367 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:47:19,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:19,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:47:19,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:47:19 BasicIcfg [2021-03-26 00:47:19,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:47:19,373 INFO L168 Benchmark]: Toolchain (without parser) took 6253.89 ms. Allocated memory was 255.9 MB in the beginning and 448.8 MB in the end (delta: 192.9 MB). Free memory was 234.2 MB in the beginning and 260.3 MB in the end (delta: -26.1 MB). Peak memory consumption was 167.9 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:19,373 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:47:19,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.73 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 233.7 MB in the beginning and 335.5 MB in the end (delta: -101.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:19,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.92 ms. Allocated memory is still 373.3 MB. Free memory was 335.5 MB in the beginning and 333.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:19,374 INFO L168 Benchmark]: Boogie Preprocessor took 32.88 ms. Allocated memory is still 373.3 MB. Free memory was 333.5 MB in the beginning and 332.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:47:19,374 INFO L168 Benchmark]: RCFGBuilder took 421.57 ms. Allocated memory is still 373.3 MB. Free memory was 331.8 MB in the beginning and 307.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:19,374 INFO L168 Benchmark]: TraceAbstraction took 5228.19 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 307.4 MB in the beginning and 260.3 MB in the end (delta: 47.1 MB). Peak memory consumption was 125.0 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:19,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 509.73 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 233.7 MB in the beginning and 335.5 MB in the end (delta: -101.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.92 ms. Allocated memory is still 373.3 MB. Free memory was 335.5 MB in the beginning and 333.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.88 ms. Allocated memory is still 373.3 MB. Free memory was 333.5 MB in the beginning and 332.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 421.57 ms. Allocated memory is still 373.3 MB. Free memory was 331.8 MB in the beginning and 307.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5228.19 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 307.4 MB in the beginning and 260.3 MB in the end (delta: 47.1 MB). Peak memory consumption was 125.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1608.6ms, 81 PlacesBefore, 38 PlacesAfterwards, 69 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1029, positive: 995, positive conditional: 995, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 867, positive: 841, positive conditional: 0, positive unconditional: 841, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 867, positive: 841, positive conditional: 0, positive unconditional: 841, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 867, positive: 829, positive conditional: 0, positive unconditional: 829, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 173, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 117, negative conditional: 0, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1029, positive: 154, positive conditional: 154, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 867, unknown conditional: 867, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 34, Positive conditional cache size: 34, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 633.4ms, 37 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 21 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 202, positive: 163, positive conditional: 163, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 67, positive: 52, positive conditional: 5, positive unconditional: 47, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, positive: 52, positive conditional: 5, positive unconditional: 47, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 123, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 83, negative conditional: 29, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 202, positive: 111, positive conditional: 111, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 67, unknown conditional: 67, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 67, Positive conditional cache size: 67, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 513.2ms, 38 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 238 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 160, positive: 146, positive conditional: 146, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 31, positive conditional: 15, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, positive: 31, positive conditional: 15, positive unconditional: 16, 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: 32, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 160, positive: 115, positive conditional: 115, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 98, Positive conditional cache size: 98, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.7ms, 39 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 139 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 7, positive unconditional: 4, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 7, positive unconditional: 4, 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: 12, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 80, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 109, Positive conditional cache size: 109, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.7ms, 42 PlacesBefore, 42 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 78 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 5, positive unconditional: 5, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 5, positive unconditional: 5, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 119, Positive conditional cache size: 119, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.7ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 58 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 9, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 9, positive unconditional: 2, 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: 12, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 29, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 130, Positive conditional cache size: 130, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.5ms, 44 PlacesBefore, 44 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 12, positive unconditional: 2, 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: 15, positive: 14, positive conditional: 0, positive unconditional: 14, 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: 21, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 146, Positive cache size: 128, Positive conditional cache size: 128, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.2ms, 48 PlacesBefore, 48 PlacesAfterwards, 37 TransitionsBefore, 36 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 127, Positive conditional cache size: 127, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.3ms, 51 PlacesBefore, 51 PlacesAfterwards, 41 TransitionsBefore, 40 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 70 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 9, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 9, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 130, Positive conditional cache size: 130, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4ms, 50 PlacesBefore, 50 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 130, Positive conditional cache size: 130, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 301.3ms, 59 PlacesBefore, 52 PlacesAfterwards, 32 TransitionsBefore, 29 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 41 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 30, 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: 30, positive: 30, positive conditional: 0, positive unconditional: 30, 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: 41, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 12, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 40 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 12, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5094.9ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 713.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1702.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 46 SDslu, 34 SDs, 0 SdLazy, 220 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 167.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=8, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.2ms SsaConstructionTime, 236.3ms SatisfiabilityAnalysisTime, 538.2ms InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 733 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...