/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/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:08:40,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:08:40,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:08:40,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:08:40,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:08:40,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:08:40,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:08:40,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:08:40,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:08:40,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:08:40,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:08:40,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:08:40,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:08:40,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:08:40,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:08:40,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:08:40,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:08:40,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:08:40,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:08:40,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:08:40,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:08:40,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:08:40,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:08:40,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:08:40,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:08:40,717 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:08:40,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:08:40,718 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:08:40,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:08:40,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:08:40,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:08:40,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:08:40,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:08:40,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:08:40,720 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:08:40,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:08:40,720 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:08:40,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:08:40,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:08:40,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:08:40,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:08:40,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:08:40,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:08:40,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:08:40,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:08:40,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:08:40,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:08:40,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:08:40,723 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:08:40,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:08:40,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:08:40,724 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:08:41,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:08:41,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:08:41,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:08:41,167 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:08:41,168 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:08:41,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-04-29 00:08:41,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd941466/c2d7807f4ea443e5b4b54d6c3752791b/FLAGe2867c669 [2021-04-29 00:08:42,078 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:08:42,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-04-29 00:08:42,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd941466/c2d7807f4ea443e5b4b54d6c3752791b/FLAGe2867c669 [2021-04-29 00:08:42,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd941466/c2d7807f4ea443e5b4b54d6c3752791b [2021-04-29 00:08:42,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:08:42,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:08:42,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:08:42,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:08:42,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:08:42,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:08:42" (1/1) ... [2021-04-29 00:08:42,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b47439e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:42, skipping insertion in model container [2021-04-29 00:08:42,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:08:42" (1/1) ... [2021-04-29 00:08:42,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:08:42,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:08:42,629 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-04-29 00:08:42,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:08:42,893 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:08:42,910 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-04-29 00:08:42,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:08:43,142 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:08:43,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43 WrapperNode [2021-04-29 00:08:43,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:08:43,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:08:43,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:08:43,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:08:43,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:08:43,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:08:43,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:08:43,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:08:43,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... [2021-04-29 00:08:43,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:08:43,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:08:43,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:08:43,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:08:43,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:08:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:08:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:08:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:08:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:08:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:08:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:08:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:08:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:08:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:08:43,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:08:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-29 00:08:43,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-29 00:08:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:08:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:08:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:08:43,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:08:43,346 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:08:43,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:08:43,785 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:08:43,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:08:43 BoogieIcfgContainer [2021-04-29 00:08:43,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:08:43,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:08:43,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:08:43,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:08:43,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:08:42" (1/3) ... [2021-04-29 00:08:43,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575378d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:08:43, skipping insertion in model container [2021-04-29 00:08:43,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:08:43" (2/3) ... [2021-04-29 00:08:43,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575378d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:08:43, skipping insertion in model container [2021-04-29 00:08:43,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:08:43" (3/3) ... [2021-04-29 00:08:43,799 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2021-04-29 00:08:43,807 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:08:43,813 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:08:43,814 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:08:43,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,860 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,861 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,861 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,862 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,862 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,862 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,865 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,865 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,867 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,868 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,868 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,868 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,868 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,869 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,869 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,870 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,870 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,870 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,871 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,871 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,871 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,871 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,872 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,872 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,872 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,872 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,873 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,873 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,874 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,874 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,877 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,877 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,884 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,884 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,884 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,885 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,887 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,887 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,888 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,893 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,893 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:08:43,897 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:08:43,930 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:08:43,962 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:08:43,963 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:08:43,963 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:08:43,963 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:08:43,963 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:08:43,963 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:08:43,964 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:08:43,964 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:08:43,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-04-29 00:08:44,039 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-04-29 00:08:44,039 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:08:44,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-04-29 00:08:44,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-04-29 00:08:44,051 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-04-29 00:08:44,053 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:44,073 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-04-29 00:08:44,078 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-04-29 00:08:44,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-04-29 00:08:44,105 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-04-29 00:08:44,106 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:08:44,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-04-29 00:08:44,110 INFO L146 LiptonReduction]: Number of co-enabled transitions 1250 [2021-04-29 00:08:48,650 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:08:50,682 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:08:51,592 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:08:51,770 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:08:51,932 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:08:52,090 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:08:52,370 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:08:52,524 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:08:52,707 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:08:52,878 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:08:53,048 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:08:53,513 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:08:53,749 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:08:54,004 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:08:54,111 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-29 00:08:54,318 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:08:54,557 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:08:54,769 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:08:55,195 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:08:55,390 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:08:55,492 INFO L158 LiptonReduction]: Checked pairs total: 10580 [2021-04-29 00:08:55,492 INFO L160 LiptonReduction]: Total number of compositions: 117 [2021-04-29 00:08:55,496 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11444 [2021-04-29 00:08:55,521 INFO L129 PetriNetUnfolder]: 0/81 cut-off events. [2021-04-29 00:08:55,521 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:08:55,521 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:55,522 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:55,522 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:55,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:55,529 INFO L82 PathProgramCache]: Analyzing trace with hash -864012930, now seen corresponding path program 1 times [2021-04-29 00:08:55,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:55,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808153558] [2021-04-29 00:08:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:55,853 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:08:55,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:08:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:55,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808153558] [2021-04-29 00:08:55,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:55,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:08:55,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763889313] [2021-04-29 00:08:55,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:08:55,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:55,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:08:55,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:08:55,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:08:55,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 83 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:55,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:55,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:08:55,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:56,131 INFO L129 PetriNetUnfolder]: 264/822 cut-off events. [2021-04-29 00:08:56,131 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:08:56,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 822 events. 264/822 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 7146 event pairs, 147 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 1243. Up to 363 conditions per place. [2021-04-29 00:08:56,140 INFO L132 encePairwiseOnDemand]: 183/203 looper letters, 5 selfloop transitions, 6 changer transitions 43/92 dead transitions. [2021-04-29 00:08:56,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 92 transitions, 264 flow [2021-04-29 00:08:56,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:08:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:08:56,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 417 transitions. [2021-04-29 00:08:56,159 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6847290640394089 [2021-04-29 00:08:56,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 417 transitions. [2021-04-29 00:08:56,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 417 transitions. [2021-04-29 00:08:56,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:56,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 417 transitions. [2021-04-29 00:08:56,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,184 INFO L185 Difference]: Start difference. First operand has 96 places, 83 transitions, 178 flow. Second operand 3 states and 417 transitions. [2021-04-29 00:08:56,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 92 transitions, 264 flow [2021-04-29 00:08:56,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 260 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:08:56,192 INFO L241 Difference]: Finished difference. Result has 95 places, 49 transitions, 134 flow [2021-04-29 00:08:56,194 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=95, PETRI_TRANSITIONS=49} [2021-04-29 00:08:56,195 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -1 predicate places. [2021-04-29 00:08:56,196 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:56,196 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 49 transitions, 134 flow [2021-04-29 00:08:56,196 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 49 transitions, 134 flow [2021-04-29 00:08:56,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 49 transitions, 134 flow [2021-04-29 00:08:56,220 INFO L129 PetriNetUnfolder]: 45/197 cut-off events. [2021-04-29 00:08:56,220 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:08:56,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 197 events. 45/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1184 event pairs, 27 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 307. Up to 78 conditions per place. [2021-04-29 00:08:56,226 INFO L146 LiptonReduction]: Number of co-enabled transitions 1322 [2021-04-29 00:08:56,248 INFO L158 LiptonReduction]: Checked pairs total: 266 [2021-04-29 00:08:56,248 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:56,249 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-04-29 00:08:56,251 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 134 flow [2021-04-29 00:08:56,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:56,252 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:56,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:08:56,253 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:56,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:56,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1014598601, now seen corresponding path program 1 times [2021-04-29 00:08:56,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:56,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213769445] [2021-04-29 00:08:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:56,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:56,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:56,342 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:08:56,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:08:56,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:56,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213769445] [2021-04-29 00:08:56,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:56,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:08:56,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769910873] [2021-04-29 00:08:56,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:56,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:56,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:56,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:56,363 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:08:56,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 134 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:56,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:08:56,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:56,426 INFO L129 PetriNetUnfolder]: 30/159 cut-off events. [2021-04-29 00:08:56,428 INFO L130 PetriNetUnfolder]: For 22/96 co-relation queries the response was YES. [2021-04-29 00:08:56,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 159 events. 30/159 cut-off events. For 22/96 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 907 event pairs, 1 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 307. Up to 58 conditions per place. [2021-04-29 00:08:56,431 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 10 selfloop transitions, 8 changer transitions 0/56 dead transitions. [2021-04-29 00:08:56,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 201 flow [2021-04-29 00:08:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:08:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:08:56,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2021-04-29 00:08:56,439 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.645320197044335 [2021-04-29 00:08:56,439 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2021-04-29 00:08:56,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2021-04-29 00:08:56,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:56,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2021-04-29 00:08:56,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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) [2021-04-29 00:08:56,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,450 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,450 INFO L185 Difference]: Start difference. First operand has 57 places, 49 transitions, 134 flow. Second operand 4 states and 524 transitions. [2021-04-29 00:08:56,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 201 flow [2021-04-29 00:08:56,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:08:56,454 INFO L241 Difference]: Finished difference. Result has 61 places, 53 transitions, 175 flow [2021-04-29 00:08:56,454 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2021-04-29 00:08:56,455 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -35 predicate places. [2021-04-29 00:08:56,455 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:56,455 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 53 transitions, 175 flow [2021-04-29 00:08:56,457 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 53 transitions, 175 flow [2021-04-29 00:08:56,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 53 transitions, 175 flow [2021-04-29 00:08:56,478 INFO L129 PetriNetUnfolder]: 30/159 cut-off events. [2021-04-29 00:08:56,478 INFO L130 PetriNetUnfolder]: For 32/43 co-relation queries the response was YES. [2021-04-29 00:08:56,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 159 events. 30/159 cut-off events. For 32/43 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 920 event pairs, 12 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 287. Up to 58 conditions per place. [2021-04-29 00:08:56,484 INFO L146 LiptonReduction]: Number of co-enabled transitions 1484 [2021-04-29 00:08:56,492 INFO L158 LiptonReduction]: Checked pairs total: 294 [2021-04-29 00:08:56,493 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:56,493 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-29 00:08:56,495 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 175 flow [2021-04-29 00:08:56,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,496 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:56,496 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:56,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:08:56,497 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:56,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:56,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1014648976, now seen corresponding path program 1 times [2021-04-29 00:08:56,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:56,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127345009] [2021-04-29 00:08:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:56,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:56,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:56,567 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:08:56,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:08:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:56,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127345009] [2021-04-29 00:08:56,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:56,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:08:56,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075657833] [2021-04-29 00:08:56,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:56,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:56,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:56,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:56,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:08:56,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:56,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:08:56,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:56,658 INFO L129 PetriNetUnfolder]: 25/141 cut-off events. [2021-04-29 00:08:56,658 INFO L130 PetriNetUnfolder]: For 54/145 co-relation queries the response was YES. [2021-04-29 00:08:56,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 141 events. 25/141 cut-off events. For 54/145 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 772 event pairs, 11 based on Foata normal form. 8/94 useless extension candidates. Maximal degree in co-relation 311. Up to 50 conditions per place. [2021-04-29 00:08:56,661 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 12 selfloop transitions, 8 changer transitions 0/58 dead transitions. [2021-04-29 00:08:56,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 58 transitions, 248 flow [2021-04-29 00:08:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:08:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:08:56,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 521 transitions. [2021-04-29 00:08:56,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6416256157635468 [2021-04-29 00:08:56,664 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 521 transitions. [2021-04-29 00:08:56,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 521 transitions. [2021-04-29 00:08:56,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:56,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 521 transitions. [2021-04-29 00:08:56,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,670 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,670 INFO L185 Difference]: Start difference. First operand has 61 places, 53 transitions, 175 flow. Second operand 4 states and 521 transitions. [2021-04-29 00:08:56,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 58 transitions, 248 flow [2021-04-29 00:08:56,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 58 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:08:56,674 INFO L241 Difference]: Finished difference. Result has 67 places, 56 transitions, 237 flow [2021-04-29 00:08:56,674 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2021-04-29 00:08:56,675 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2021-04-29 00:08:56,675 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:56,675 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 56 transitions, 237 flow [2021-04-29 00:08:56,675 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 56 transitions, 237 flow [2021-04-29 00:08:56,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 56 transitions, 237 flow [2021-04-29 00:08:56,695 INFO L129 PetriNetUnfolder]: 25/141 cut-off events. [2021-04-29 00:08:56,695 INFO L130 PetriNetUnfolder]: For 109/139 co-relation queries the response was YES. [2021-04-29 00:08:56,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 141 events. 25/141 cut-off events. For 109/139 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 767 event pairs, 5 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 301. Up to 50 conditions per place. [2021-04-29 00:08:56,700 INFO L146 LiptonReduction]: Number of co-enabled transitions 1606 [2021-04-29 00:08:56,713 INFO L158 LiptonReduction]: Checked pairs total: 315 [2021-04-29 00:08:56,714 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:56,714 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-04-29 00:08:56,716 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 237 flow [2021-04-29 00:08:56,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,717 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:56,717 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:56,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:08:56,717 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:56,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:56,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1387787261, now seen corresponding path program 1 times [2021-04-29 00:08:56,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:56,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095787524] [2021-04-29 00:08:56,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:56,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:56,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:56,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:56,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:56,782 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:08:56,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:08:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:56,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095787524] [2021-04-29 00:08:56,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:56,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:08:56,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099041985] [2021-04-29 00:08:56,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:08:56,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:56,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:08:56,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:08:56,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:08:56,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:56,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:08:56,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:56,860 INFO L129 PetriNetUnfolder]: 25/174 cut-off events. [2021-04-29 00:08:56,860 INFO L130 PetriNetUnfolder]: For 159/227 co-relation queries the response was YES. [2021-04-29 00:08:56,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 174 events. 25/174 cut-off events. For 159/227 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1085 event pairs, 5 based on Foata normal form. 9/111 useless extension candidates. Maximal degree in co-relation 420. Up to 57 conditions per place. [2021-04-29 00:08:56,863 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 8 selfloop transitions, 8 changer transitions 12/64 dead transitions. [2021-04-29 00:08:56,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 341 flow [2021-04-29 00:08:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:08:56,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:08:56,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2021-04-29 00:08:56,867 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6433497536945813 [2021-04-29 00:08:56,867 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2021-04-29 00:08:56,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2021-04-29 00:08:56,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:56,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2021-04-29 00:08:56,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,874 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,875 INFO L185 Difference]: Start difference. First operand has 67 places, 56 transitions, 237 flow. Second operand 5 states and 653 transitions. [2021-04-29 00:08:56,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 341 flow [2021-04-29 00:08:56,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 336 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:08:56,884 INFO L241 Difference]: Finished difference. Result has 71 places, 51 transitions, 220 flow [2021-04-29 00:08:56,884 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=71, PETRI_TRANSITIONS=51} [2021-04-29 00:08:56,885 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -25 predicate places. [2021-04-29 00:08:56,885 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:56,888 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 51 transitions, 220 flow [2021-04-29 00:08:56,889 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 51 transitions, 220 flow [2021-04-29 00:08:56,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 51 transitions, 220 flow [2021-04-29 00:08:56,906 INFO L129 PetriNetUnfolder]: 16/118 cut-off events. [2021-04-29 00:08:56,906 INFO L130 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2021-04-29 00:08:56,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 118 events. 16/118 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 621 event pairs, 8 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 257. Up to 37 conditions per place. [2021-04-29 00:08:56,913 INFO L146 LiptonReduction]: Number of co-enabled transitions 1318 [2021-04-29 00:08:56,932 INFO L158 LiptonReduction]: Checked pairs total: 282 [2021-04-29 00:08:56,932 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:56,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-04-29 00:08:56,936 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 51 transitions, 220 flow [2021-04-29 00:08:56,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:56,940 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:56,940 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:56,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:08:56,940 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:56,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1389394301, now seen corresponding path program 2 times [2021-04-29 00:08:56,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:56,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318960866] [2021-04-29 00:08:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:57,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:57,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:57,040 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:08:57,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:08:57,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:57,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318960866] [2021-04-29 00:08:57,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:57,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:08:57,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550161263] [2021-04-29 00:08:57,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:57,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:57,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:57,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:57,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:08:57,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 51 transitions, 220 flow. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:57,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:08:57,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:57,088 INFO L129 PetriNetUnfolder]: 13/113 cut-off events. [2021-04-29 00:08:57,088 INFO L130 PetriNetUnfolder]: For 123/125 co-relation queries the response was YES. [2021-04-29 00:08:57,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 113 events. 13/113 cut-off events. For 123/125 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 562 event pairs, 3 based on Foata normal form. 4/71 useless extension candidates. Maximal degree in co-relation 278. Up to 32 conditions per place. [2021-04-29 00:08:57,090 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 8 selfloop transitions, 9 changer transitions 1/53 dead transitions. [2021-04-29 00:08:57,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 53 transitions, 268 flow [2021-04-29 00:08:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:08:57,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:08:57,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2021-04-29 00:08:57,093 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2021-04-29 00:08:57,093 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2021-04-29 00:08:57,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2021-04-29 00:08:57,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:57,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2021-04-29 00:08:57,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,099 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,100 INFO L185 Difference]: Start difference. First operand has 69 places, 51 transitions, 220 flow. Second operand 4 states and 522 transitions. [2021-04-29 00:08:57,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 53 transitions, 268 flow [2021-04-29 00:08:57,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 53 transitions, 236 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-04-29 00:08:57,103 INFO L241 Difference]: Finished difference. Result has 67 places, 50 transitions, 211 flow [2021-04-29 00:08:57,103 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2021-04-29 00:08:57,104 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2021-04-29 00:08:57,104 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:57,104 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 50 transitions, 211 flow [2021-04-29 00:08:57,104 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 50 transitions, 211 flow [2021-04-29 00:08:57,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 50 transitions, 211 flow [2021-04-29 00:08:57,118 INFO L129 PetriNetUnfolder]: 13/112 cut-off events. [2021-04-29 00:08:57,118 INFO L130 PetriNetUnfolder]: For 70/71 co-relation queries the response was YES. [2021-04-29 00:08:57,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 112 events. 13/112 cut-off events. For 70/71 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 599 event pairs, 3 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 234. Up to 32 conditions per place. [2021-04-29 00:08:57,122 INFO L146 LiptonReduction]: Number of co-enabled transitions 1256 [2021-04-29 00:08:57,132 INFO L158 LiptonReduction]: Checked pairs total: 275 [2021-04-29 00:08:57,132 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:57,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-04-29 00:08:57,134 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 50 transitions, 211 flow [2021-04-29 00:08:57,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,135 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:57,135 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:57,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:08:57,136 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:57,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:57,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1632232426, now seen corresponding path program 1 times [2021-04-29 00:08:57,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:57,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375148672] [2021-04-29 00:08:57,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:57,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:57,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:08:57,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:57,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:57,219 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:08:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:08:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:57,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375148672] [2021-04-29 00:08:57,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:57,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:08:57,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357010140] [2021-04-29 00:08:57,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:57,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:57,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:57,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:57,238 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:08:57,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 50 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:57,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:08:57,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:57,274 INFO L129 PetriNetUnfolder]: 8/108 cut-off events. [2021-04-29 00:08:57,274 INFO L130 PetriNetUnfolder]: For 78/80 co-relation queries the response was YES. [2021-04-29 00:08:57,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 108 events. 8/108 cut-off events. For 78/80 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 549 event pairs, 1 based on Foata normal form. 6/68 useless extension candidates. Maximal degree in co-relation 251. Up to 28 conditions per place. [2021-04-29 00:08:57,276 INFO L132 encePairwiseOnDemand]: 198/203 looper letters, 8 selfloop transitions, 7 changer transitions 2/51 dead transitions. [2021-04-29 00:08:57,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 51 transitions, 247 flow [2021-04-29 00:08:57,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:08:57,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:08:57,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 521 transitions. [2021-04-29 00:08:57,279 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6416256157635468 [2021-04-29 00:08:57,279 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 521 transitions. [2021-04-29 00:08:57,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 521 transitions. [2021-04-29 00:08:57,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:57,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 521 transitions. [2021-04-29 00:08:57,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,285 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,285 INFO L185 Difference]: Start difference. First operand has 66 places, 50 transitions, 211 flow. Second operand 4 states and 521 transitions. [2021-04-29 00:08:57,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 51 transitions, 247 flow [2021-04-29 00:08:57,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 51 transitions, 229 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:08:57,288 INFO L241 Difference]: Finished difference. Result has 67 places, 48 transitions, 203 flow [2021-04-29 00:08:57,288 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2021-04-29 00:08:57,289 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2021-04-29 00:08:57,289 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:57,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 48 transitions, 203 flow [2021-04-29 00:08:57,289 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 48 transitions, 203 flow [2021-04-29 00:08:57,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 48 transitions, 203 flow [2021-04-29 00:08:57,302 INFO L129 PetriNetUnfolder]: 7/98 cut-off events. [2021-04-29 00:08:57,302 INFO L130 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2021-04-29 00:08:57,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 98 events. 7/98 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 494 event pairs, 2 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 202. Up to 26 conditions per place. [2021-04-29 00:08:57,305 INFO L146 LiptonReduction]: Number of co-enabled transitions 1150 [2021-04-29 00:08:57,314 INFO L158 LiptonReduction]: Checked pairs total: 261 [2021-04-29 00:08:57,314 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:57,314 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:08:57,316 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 203 flow [2021-04-29 00:08:57,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:57,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:57,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:08:57,317 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:57,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:57,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1252199251, now seen corresponding path program 1 times [2021-04-29 00:08:57,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:57,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522198492] [2021-04-29 00:08:57,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:57,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:57,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:57,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:08:57,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:08:57,367 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:08:57,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:08:57,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:57,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522198492] [2021-04-29 00:08:57,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:57,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:08:57,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950362950] [2021-04-29 00:08:57,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:08:57,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:57,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:08:57,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:08:57,381 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:08:57,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:57,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:08:57,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:08:57,441 INFO L129 PetriNetUnfolder]: 29/230 cut-off events. [2021-04-29 00:08:57,441 INFO L130 PetriNetUnfolder]: For 317/327 co-relation queries the response was YES. [2021-04-29 00:08:57,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 230 events. 29/230 cut-off events. For 317/327 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1643 event pairs, 4 based on Foata normal form. 9/144 useless extension candidates. Maximal degree in co-relation 528. Up to 55 conditions per place. [2021-04-29 00:08:57,444 INFO L132 encePairwiseOnDemand]: 195/203 looper letters, 11 selfloop transitions, 9 changer transitions 17/69 dead transitions. [2021-04-29 00:08:57,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 69 transitions, 457 flow [2021-04-29 00:08:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:08:57,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:08:57,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2021-04-29 00:08:57,447 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6275862068965518 [2021-04-29 00:08:57,447 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2021-04-29 00:08:57,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2021-04-29 00:08:57,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:08:57,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2021-04-29 00:08:57,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,453 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,453 INFO L185 Difference]: Start difference. First operand has 66 places, 48 transitions, 203 flow. Second operand 5 states and 637 transitions. [2021-04-29 00:08:57,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 69 transitions, 457 flow [2021-04-29 00:08:57,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 69 transitions, 383 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-04-29 00:08:57,458 INFO L241 Difference]: Finished difference. Result has 68 places, 47 transitions, 199 flow [2021-04-29 00:08:57,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2021-04-29 00:08:57,458 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2021-04-29 00:08:57,458 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:08:57,459 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 47 transitions, 199 flow [2021-04-29 00:08:57,459 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 47 transitions, 199 flow [2021-04-29 00:08:57,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 47 transitions, 199 flow [2021-04-29 00:08:57,471 INFO L129 PetriNetUnfolder]: 7/97 cut-off events. [2021-04-29 00:08:57,471 INFO L130 PetriNetUnfolder]: For 98/98 co-relation queries the response was YES. [2021-04-29 00:08:57,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 97 events. 7/97 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 502 event pairs, 2 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 206. Up to 26 conditions per place. [2021-04-29 00:08:57,475 INFO L146 LiptonReduction]: Number of co-enabled transitions 1046 [2021-04-29 00:08:57,478 INFO L158 LiptonReduction]: Checked pairs total: 26 [2021-04-29 00:08:57,478 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:08:57,479 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-29 00:08:57,480 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 199 flow [2021-04-29 00:08:57,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:08:57,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:08:57,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:08:57,482 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:08:57,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:08:57,482 INFO L82 PathProgramCache]: Analyzing trace with hash 202921190, now seen corresponding path program 1 times [2021-04-29 00:08:57,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:08:57,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913358307] [2021-04-29 00:08:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:08:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:08:57,532 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:08:57,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:08:57,538 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:08:57,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:08:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:08:57,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913358307] [2021-04-29 00:08:57,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:08:57,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:08:57,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181130756] [2021-04-29 00:08:57,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:08:57,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:08:57,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:08:57,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:08:57,549 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:08:57,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:08:57,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:08:57,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:08:57,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:09:06,955 INFO L129 PetriNetUnfolder]: 40367/56696 cut-off events. [2021-04-29 00:09:06,955 INFO L130 PetriNetUnfolder]: For 23186/28990 co-relation queries the response was YES. [2021-04-29 00:09:07,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116482 conditions, 56696 events. 40367/56696 cut-off events. For 23186/28990 co-relation queries the response was YES. Maximal size of possible extension queue 9129. Compared 461955 event pairs, 22425 based on Foata normal form. 333/16052 useless extension candidates. Maximal degree in co-relation 116463. Up to 35371 conditions per place. [2021-04-29 00:09:07,327 INFO L132 encePairwiseOnDemand]: 182/203 looper letters, 35 selfloop transitions, 33 changer transitions 0/91 dead transitions. [2021-04-29 00:09:07,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 91 transitions, 423 flow [2021-04-29 00:09:07,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:09:07,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:09:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 683 transitions. [2021-04-29 00:09:07,331 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6729064039408867 [2021-04-29 00:09:07,331 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 683 transitions. [2021-04-29 00:09:07,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 683 transitions. [2021-04-29 00:09:07,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:09:07,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 683 transitions. [2021-04-29 00:09:07,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:07,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:07,337 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:07,338 INFO L185 Difference]: Start difference. First operand has 67 places, 47 transitions, 199 flow. Second operand 5 states and 683 transitions. [2021-04-29 00:09:07,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 91 transitions, 423 flow [2021-04-29 00:09:07,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 393 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-04-29 00:09:07,349 INFO L241 Difference]: Finished difference. Result has 68 places, 78 transitions, 417 flow [2021-04-29 00:09:07,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=417, PETRI_PLACES=68, PETRI_TRANSITIONS=78} [2021-04-29 00:09:07,350 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2021-04-29 00:09:07,350 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:09:07,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 78 transitions, 417 flow [2021-04-29 00:09:07,350 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 78 transitions, 417 flow [2021-04-29 00:09:07,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 78 transitions, 417 flow [2021-04-29 00:09:13,083 INFO L129 PetriNetUnfolder]: 39314/55400 cut-off events. [2021-04-29 00:09:13,084 INFO L130 PetriNetUnfolder]: For 18155/140895 co-relation queries the response was YES. [2021-04-29 00:09:13,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159764 conditions, 55400 events. 39314/55400 cut-off events. For 18155/140895 co-relation queries the response was YES. Maximal size of possible extension queue 8233. Compared 453109 event pairs, 22374 based on Foata normal form. 6/16120 useless extension candidates. Maximal degree in co-relation 159747. Up to 51056 conditions per place. [2021-04-29 00:09:13,722 INFO L146 LiptonReduction]: Number of co-enabled transitions 1350 [2021-04-29 00:09:13,907 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:09:13,907 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:09:13,908 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6558 [2021-04-29 00:09:13,916 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 78 transitions, 417 flow [2021-04-29 00:09:13,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:13,917 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:09:13,917 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:09:13,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:09:13,918 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:09:13,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:09:13,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1996273240, now seen corresponding path program 1 times [2021-04-29 00:09:13,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:09:13,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568773959] [2021-04-29 00:09:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:09:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:09:13,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:09:13,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:09:14,004 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:09:14,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:09:14,010 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:09:14,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:09:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:09:14,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568773959] [2021-04-29 00:09:14,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:09:14,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:09:14,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284194824] [2021-04-29 00:09:14,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:09:14,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:09:14,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:09:14,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:09:14,027 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:09:14,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 78 transitions, 417 flow. Second operand has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:14,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:09:14,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:09:14,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:09:21,092 INFO L129 PetriNetUnfolder]: 46598/67595 cut-off events. [2021-04-29 00:09:21,092 INFO L130 PetriNetUnfolder]: For 24717/597640 co-relation queries the response was YES. [2021-04-29 00:09:21,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262320 conditions, 67595 events. 46598/67595 cut-off events. For 24717/597640 co-relation queries the response was YES. Maximal size of possible extension queue 12312. Compared 584614 event pairs, 11106 based on Foata normal form. 428/21457 useless extension candidates. Maximal degree in co-relation 262301. Up to 62603 conditions per place. [2021-04-29 00:09:21,403 INFO L132 encePairwiseOnDemand]: 182/203 looper letters, 36 selfloop transitions, 76 changer transitions 0/135 dead transitions. [2021-04-29 00:09:21,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 135 transitions, 962 flow [2021-04-29 00:09:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:09:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:09:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 959 transitions. [2021-04-29 00:09:21,408 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6748768472906403 [2021-04-29 00:09:21,409 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 959 transitions. [2021-04-29 00:09:21,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 959 transitions. [2021-04-29 00:09:21,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:09:21,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 959 transitions. [2021-04-29 00:09:21,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:21,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 203.0) internal successors, (1624), 8 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:21,418 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 203.0) internal successors, (1624), 8 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:21,418 INFO L185 Difference]: Start difference. First operand has 68 places, 78 transitions, 417 flow. Second operand 7 states and 959 transitions. [2021-04-29 00:09:21,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 135 transitions, 962 flow [2021-04-29 00:09:22,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 135 transitions, 962 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:09:22,065 INFO L241 Difference]: Finished difference. Result has 77 places, 121 transitions, 981 flow [2021-04-29 00:09:22,066 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=981, PETRI_PLACES=77, PETRI_TRANSITIONS=121} [2021-04-29 00:09:22,066 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -19 predicate places. [2021-04-29 00:09:22,066 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:09:22,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 121 transitions, 981 flow [2021-04-29 00:09:22,067 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 121 transitions, 981 flow [2021-04-29 00:09:22,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 121 transitions, 981 flow [2021-04-29 00:09:28,584 INFO L129 PetriNetUnfolder]: 44075/64208 cut-off events. [2021-04-29 00:09:28,585 INFO L130 PetriNetUnfolder]: For 45171/170656 co-relation queries the response was YES. [2021-04-29 00:09:28,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306920 conditions, 64208 events. 44075/64208 cut-off events. For 45171/170656 co-relation queries the response was YES. Maximal size of possible extension queue 11342. Compared 573227 event pairs, 10842 based on Foata normal form. 13/19642 useless extension candidates. Maximal degree in co-relation 306898. Up to 60098 conditions per place. [2021-04-29 00:09:29,481 INFO L146 LiptonReduction]: Number of co-enabled transitions 2032 [2021-04-29 00:09:29,562 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:09:29,562 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:09:29,563 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7497 [2021-04-29 00:09:29,564 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 121 transitions, 981 flow [2021-04-29 00:09:29,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:29,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:09:29,565 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:09:29,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:09:29,565 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:09:29,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:09:29,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1126286506, now seen corresponding path program 1 times [2021-04-29 00:09:29,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:09:29,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092387775] [2021-04-29 00:09:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:09:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:09:29,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:09:29,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:09:29,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:09:29,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:09:29,612 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:09:29,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:09:29,617 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:09:29,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:09:29,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:09:29,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092387775] [2021-04-29 00:09:29,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:09:29,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:09:29,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386209544] [2021-04-29 00:09:29,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:09:29,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:09:29,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:09:29,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:09:29,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:09:29,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 121 transitions, 981 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:29,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:09:29,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:09:29,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:09:37,928 INFO L129 PetriNetUnfolder]: 45644/69593 cut-off events. [2021-04-29 00:09:37,928 INFO L130 PetriNetUnfolder]: For 66597/1785221 co-relation queries the response was YES. [2021-04-29 00:09:38,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 400320 conditions, 69593 events. 45644/69593 cut-off events. For 66597/1785221 co-relation queries the response was YES. Maximal size of possible extension queue 14358. Compared 663532 event pairs, 2052 based on Foata normal form. 553/22367 useless extension candidates. Maximal degree in co-relation 400296. Up to 64799 conditions per place. [2021-04-29 00:09:38,323 INFO L132 encePairwiseOnDemand]: 182/203 looper letters, 25 selfloop transitions, 119 changer transitions 12/179 dead transitions. [2021-04-29 00:09:38,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 179 transitions, 1823 flow [2021-04-29 00:09:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:09:38,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:09:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1235 transitions. [2021-04-29 00:09:38,329 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6759715380405036 [2021-04-29 00:09:38,329 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1235 transitions. [2021-04-29 00:09:38,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1235 transitions. [2021-04-29 00:09:38,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:09:38,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1235 transitions. [2021-04-29 00:09:38,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.22222222222223) internal successors, (1235), 9 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:38,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 203.0) internal successors, (2030), 10 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:38,341 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 203.0) internal successors, (2030), 10 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:38,341 INFO L185 Difference]: Start difference. First operand has 77 places, 121 transitions, 981 flow. Second operand 9 states and 1235 transitions. [2021-04-29 00:09:38,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 179 transitions, 1823 flow [2021-04-29 00:09:43,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 179 transitions, 1703 flow, removed 42 selfloop flow, removed 2 redundant places. [2021-04-29 00:09:43,157 INFO L241 Difference]: Finished difference. Result has 86 places, 164 transitions, 1658 flow [2021-04-29 00:09:43,157 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1658, PETRI_PLACES=86, PETRI_TRANSITIONS=164} [2021-04-29 00:09:43,158 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -10 predicate places. [2021-04-29 00:09:43,158 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:09:43,158 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 164 transitions, 1658 flow [2021-04-29 00:09:43,158 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 164 transitions, 1658 flow [2021-04-29 00:09:43,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 164 transitions, 1658 flow [2021-04-29 00:09:48,051 INFO L129 PetriNetUnfolder]: 29012/47732 cut-off events. [2021-04-29 00:09:48,052 INFO L130 PetriNetUnfolder]: For 189213/388194 co-relation queries the response was YES. [2021-04-29 00:09:48,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 292833 conditions, 47732 events. 29012/47732 cut-off events. For 189213/388194 co-relation queries the response was YES. Maximal size of possible extension queue 10625. Compared 511111 event pairs, 2052 based on Foata normal form. 6/14239 useless extension candidates. Maximal degree in co-relation 292808. Up to 39979 conditions per place. [2021-04-29 00:09:48,607 INFO L146 LiptonReduction]: Number of co-enabled transitions 2442 [2021-04-29 00:09:48,677 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:09:48,677 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:09:48,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5519 [2021-04-29 00:09:48,679 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 164 transitions, 1658 flow [2021-04-29 00:09:48,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:48,679 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:09:48,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:09:48,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 00:09:48,680 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:09:48,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:09:48,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1842632060, now seen corresponding path program 1 times [2021-04-29 00:09:48,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:09:48,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024187430] [2021-04-29 00:09:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:09:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:09:48,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:09:48,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:09:48,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:09:48,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:09:48,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:09:48,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:09:48,739 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:09:48,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:09:48,751 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:09:48,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:09:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:09:48,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024187430] [2021-04-29 00:09:48,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:09:48,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 00:09:48,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293220660] [2021-04-29 00:09:48,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 00:09:48,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:09:48,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 00:09:48,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-29 00:09:48,764 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:09:48,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 164 transitions, 1658 flow. Second operand has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:48,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:09:48,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:09:48,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:09:56,275 INFO L129 PetriNetUnfolder]: 27797/47804 cut-off events. [2021-04-29 00:09:56,275 INFO L130 PetriNetUnfolder]: For 121572/1550722 co-relation queries the response was YES. [2021-04-29 00:09:56,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337897 conditions, 47804 events. 27797/47804 cut-off events. For 121572/1550722 co-relation queries the response was YES. Maximal size of possible extension queue 10065. Compared 518142 event pairs, 0 based on Foata normal form. 495/15181 useless extension candidates. Maximal degree in co-relation 337870. Up to 39574 conditions per place. [2021-04-29 00:09:56,605 INFO L132 encePairwiseOnDemand]: 182/203 looper letters, 6 selfloop transitions, 137 changer transitions 33/199 dead transitions. [2021-04-29 00:09:56,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 199 transitions, 2388 flow [2021-04-29 00:09:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 00:09:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 00:09:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1487 transitions. [2021-04-29 00:09:56,611 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6659202866099417 [2021-04-29 00:09:56,612 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1487 transitions. [2021-04-29 00:09:56,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1487 transitions. [2021-04-29 00:09:56,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:09:56,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1487 transitions. [2021-04-29 00:09:56,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 135.1818181818182) internal successors, (1487), 11 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:56,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:56,624 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:09:56,624 INFO L185 Difference]: Start difference. First operand has 86 places, 164 transitions, 1658 flow. Second operand 11 states and 1487 transitions. [2021-04-29 00:09:56,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 199 transitions, 2388 flow [2021-04-29 00:11:00,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 199 transitions, 2134 flow, removed 84 selfloop flow, removed 4 redundant places. [2021-04-29 00:11:00,047 INFO L241 Difference]: Finished difference. Result has 95 places, 163 transitions, 1739 flow [2021-04-29 00:11:00,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=1405, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1739, PETRI_PLACES=95, PETRI_TRANSITIONS=163} [2021-04-29 00:11:00,048 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -1 predicate places. [2021-04-29 00:11:00,048 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:11:00,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 163 transitions, 1739 flow [2021-04-29 00:11:00,048 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 163 transitions, 1739 flow [2021-04-29 00:11:00,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 163 transitions, 1739 flow [2021-04-29 00:11:03,857 INFO L129 PetriNetUnfolder]: 20156/35663 cut-off events. [2021-04-29 00:11:03,857 INFO L130 PetriNetUnfolder]: For 236712/389412 co-relation queries the response was YES. [2021-04-29 00:11:04,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213087 conditions, 35663 events. 20156/35663 cut-off events. For 236712/389412 co-relation queries the response was YES. Maximal size of possible extension queue 8906. Compared 407050 event pairs, 0 based on Foata normal form. 9/10758 useless extension candidates. Maximal degree in co-relation 213059. Up to 29530 conditions per place. [2021-04-29 00:11:04,311 INFO L146 LiptonReduction]: Number of co-enabled transitions 2414 [2021-04-29 00:11:04,392 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:11:04,392 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:11:04,392 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4344 [2021-04-29 00:11:04,393 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 163 transitions, 1739 flow [2021-04-29 00:11:04,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:04,394 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:11:04,394 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] [2021-04-29 00:11:04,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 00:11:04,395 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:11:04,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:11:04,395 INFO L82 PathProgramCache]: Analyzing trace with hash 306257360, now seen corresponding path program 1 times [2021-04-29 00:11:04,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:11:04,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116328728] [2021-04-29 00:11:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:11:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:11:04,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:11:04,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:11:04,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:11:04,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:11:04,444 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:11:04,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:11:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:11:04,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116328728] [2021-04-29 00:11:04,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:11:04,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:11:04,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323279427] [2021-04-29 00:11:04,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:11:04,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:11:04,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:11:04,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:11:04,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:11:04,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 163 transitions, 1739 flow. Second operand has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:04,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:11:04,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:11:04,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:11:10,313 INFO L129 PetriNetUnfolder]: 27358/48415 cut-off events. [2021-04-29 00:11:10,313 INFO L130 PetriNetUnfolder]: For 470353/1057325 co-relation queries the response was YES. [2021-04-29 00:11:10,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 289125 conditions, 48415 events. 27358/48415 cut-off events. For 470353/1057325 co-relation queries the response was YES. Maximal size of possible extension queue 12636. Compared 551112 event pairs, 0 based on Foata normal form. 92/14230 useless extension candidates. Maximal degree in co-relation 289095. Up to 40075 conditions per place. [2021-04-29 00:11:10,644 INFO L132 encePairwiseOnDemand]: 195/203 looper letters, 3 selfloop transitions, 8 changer transitions 26/170 dead transitions. [2021-04-29 00:11:10,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 170 transitions, 1823 flow [2021-04-29 00:11:10,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:11:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:11:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 633 transitions. [2021-04-29 00:11:10,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6236453201970443 [2021-04-29 00:11:10,647 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 633 transitions. [2021-04-29 00:11:10,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 633 transitions. [2021-04-29 00:11:10,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:11:10,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 633 transitions. [2021-04-29 00:11:10,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:10,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:10,654 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:10,654 INFO L185 Difference]: Start difference. First operand has 92 places, 163 transitions, 1739 flow. Second operand 5 states and 633 transitions. [2021-04-29 00:11:10,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 170 transitions, 1823 flow [2021-04-29 00:13:53,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 170 transitions, 1412 flow, removed 80 selfloop flow, removed 10 redundant places. [2021-04-29 00:13:53,804 INFO L241 Difference]: Finished difference. Result has 87 places, 144 transitions, 1149 flow [2021-04-29 00:13:53,804 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1149, PETRI_PLACES=87, PETRI_TRANSITIONS=144} [2021-04-29 00:13:53,804 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -9 predicate places. [2021-04-29 00:13:53,805 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:53,805 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 144 transitions, 1149 flow [2021-04-29 00:13:53,805 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 144 transitions, 1149 flow [2021-04-29 00:13:53,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 144 transitions, 1149 flow [2021-04-29 00:13:54,871 INFO L129 PetriNetUnfolder]: 7786/16214 cut-off events. [2021-04-29 00:13:54,872 INFO L130 PetriNetUnfolder]: For 64588/132650 co-relation queries the response was YES. [2021-04-29 00:13:54,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83957 conditions, 16214 events. 7786/16214 cut-off events. For 64588/132650 co-relation queries the response was YES. Maximal size of possible extension queue 3918. Compared 195961 event pairs, 0 based on Foata normal form. 3/4762 useless extension candidates. Maximal degree in co-relation 83931. Up to 11725 conditions per place. [2021-04-29 00:13:55,112 INFO L146 LiptonReduction]: Number of co-enabled transitions 1682 [2021-04-29 00:13:55,162 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:13:55,162 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:55,163 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1358 [2021-04-29 00:13:55,164 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 144 transitions, 1149 flow [2021-04-29 00:13:55,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:55,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:55,164 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] [2021-04-29 00:13:55,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 00:13:55,165 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:55,165 INFO L82 PathProgramCache]: Analyzing trace with hash 833956141, now seen corresponding path program 1 times [2021-04-29 00:13:55,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:55,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936280360] [2021-04-29 00:13:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:55,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:55,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:13:55,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:55,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:55,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:55,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:55,214 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:13:55,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:13:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:55,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936280360] [2021-04-29 00:13:55,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:55,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:13:55,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182295813] [2021-04-29 00:13:55,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:13:55,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:55,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:13:55,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:13:55,228 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:13:55,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 144 transitions, 1149 flow. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:55,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:55,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:13:55,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:56,811 INFO L129 PetriNetUnfolder]: 9432/20073 cut-off events. [2021-04-29 00:13:56,811 INFO L130 PetriNetUnfolder]: For 81260/176969 co-relation queries the response was YES. [2021-04-29 00:13:56,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102428 conditions, 20073 events. 9432/20073 cut-off events. For 81260/176969 co-relation queries the response was YES. Maximal size of possible extension queue 5391. Compared 244087 event pairs, 0 based on Foata normal form. 85/6051 useless extension candidates. Maximal degree in co-relation 102400. Up to 14101 conditions per place. [2021-04-29 00:13:56,915 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2021-04-29 00:13:56,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 145 transitions, 1161 flow [2021-04-29 00:13:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:13:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:13:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2021-04-29 00:13:56,918 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6346469622331691 [2021-04-29 00:13:56,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2021-04-29 00:13:56,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2021-04-29 00:13:56,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:56,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2021-04-29 00:13:56,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:56,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:56,925 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:56,925 INFO L185 Difference]: Start difference. First operand has 86 places, 144 transitions, 1149 flow. Second operand 6 states and 773 transitions. [2021-04-29 00:13:56,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 145 transitions, 1161 flow [2021-04-29 00:14:14,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 145 transitions, 1011 flow, removed 0 selfloop flow, removed 13 redundant places. [2021-04-29 00:14:14,286 INFO L241 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2021-04-29 00:14:14,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=977, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2021-04-29 00:14:14,287 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -19 predicate places. [2021-04-29 00:14:14,287 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:14,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 0 transitions, 0 flow [2021-04-29 00:14:14,288 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 0 transitions, 0 flow [2021-04-29 00:14:14,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:14:14,288 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:14:14,288 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:14:14,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:14:14,288 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:14:14,289 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:14:14,289 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:14:14,289 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:14:14,290 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:14:14,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:14,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 00:14:14,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:14:14 BasicIcfg [2021-04-29 00:14:14,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:14:14,296 INFO L168 Benchmark]: Toolchain (without parser) took 331954.73 ms. Allocated memory was 306.2 MB in the beginning and 14.1 GB in the end (delta: 13.8 GB). Free memory was 280.8 MB in the beginning and 9.3 GB in the end (delta: -9.0 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. [2021-04-29 00:14:14,301 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 306.2 MB. Free memory is still 276.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:14:14,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.93 ms. Allocated memory is still 306.2 MB. Free memory was 277.8 MB in the beginning and 273.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:14:14,302 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.48 ms. Allocated memory is still 306.2 MB. Free memory was 273.6 MB in the beginning and 271.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:14:14,303 INFO L168 Benchmark]: Boogie Preprocessor took 32.42 ms. Allocated memory is still 306.2 MB. Free memory was 271.5 MB in the beginning and 270.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:14:14,304 INFO L168 Benchmark]: RCFGBuilder took 561.39 ms. Allocated memory was 306.2 MB in the beginning and 392.2 MB in the end (delta: 86.0 MB). Free memory was 270.2 MB in the beginning and 372.0 MB in the end (delta: -101.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:14:14,304 INFO L168 Benchmark]: TraceAbstraction took 330504.83 ms. Allocated memory was 392.2 MB in the beginning and 14.1 GB in the end (delta: 13.7 GB). Free memory was 372.0 MB in the beginning and 9.3 GB in the end (delta: -8.9 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. [2021-04-29 00:14:14,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 306.2 MB. Free memory is still 276.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 746.93 ms. Allocated memory is still 306.2 MB. Free memory was 277.8 MB in the beginning and 273.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.48 ms. Allocated memory is still 306.2 MB. Free memory was 273.6 MB in the beginning and 271.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.42 ms. Allocated memory is still 306.2 MB. Free memory was 271.5 MB in the beginning and 270.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 561.39 ms. Allocated memory was 306.2 MB in the beginning and 392.2 MB in the end (delta: 86.0 MB). Free memory was 270.2 MB in the beginning and 372.0 MB in the end (delta: -101.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 330504.83 ms. Allocated memory was 392.2 MB in the beginning and 14.1 GB in the end (delta: 13.7 GB). Free memory was 372.0 MB in the beginning and 9.3 GB in the end (delta: -8.9 GB). Peak memory consumption was 4.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11414.6ms, 80 PlacesBefore, 96 PlacesAfterwards, 68 TransitionsBefore, 83 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 8 FixpointIterations, 65 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 10580 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2972, positive: 2708, positive conditional: 2708, positive unconditional: 0, negative: 264, negative conditional: 264, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1352, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1352, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1352, positive: 1218, positive conditional: 0, positive unconditional: 1218, negative: 134, negative conditional: 0, negative unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 134, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 613, positive: 252, positive conditional: 0, positive unconditional: 252, negative: 361, negative conditional: 0, negative unconditional: 361, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2972, positive: 1428, positive conditional: 1428, positive unconditional: 0, negative: 192, negative conditional: 192, negative unconditional: 0, unknown: 1352, unknown conditional: 1352, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1339, Positive cache size: 1267, Positive conditional cache size: 1267, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.9ms, 95 PlacesBefore, 57 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 266 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 4, positive unconditional: 5, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 4, positive unconditional: 5, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 5, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1350, Positive cache size: 1276, Positive conditional cache size: 1276, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.6ms, 61 PlacesBefore, 61 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 294 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1354, Positive cache size: 1280, Positive conditional cache size: 1280, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.4ms, 67 PlacesBefore, 67 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 1606 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 315 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 12, positive unconditional: 0, 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: 13, positive: 12, positive conditional: 12, positive unconditional: 0, 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: 13, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 41, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1367, Positive cache size: 1292, Positive conditional cache size: 1292, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.0ms, 71 PlacesBefore, 69 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1318 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 282 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 7, negative conditional: 7, 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: 29, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1367, Positive cache size: 1292, Positive conditional cache size: 1292, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.1ms, 67 PlacesBefore, 66 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 275 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 21, positive conditional: 18, positive unconditional: 3, 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: 22, positive: 21, positive conditional: 18, positive unconditional: 3, 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: 22, positive: 21, positive conditional: 0, positive unconditional: 21, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1389, Positive cache size: 1313, Positive conditional cache size: 1313, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.7ms, 67 PlacesBefore, 66 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 8, positive unconditional: 8, 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: 17, positive: 16, positive conditional: 8, positive unconditional: 8, 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: 17, positive: 16, positive conditional: 0, positive unconditional: 16, 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: 43, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1406, Positive cache size: 1329, Positive conditional cache size: 1329, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.6ms, 68 PlacesBefore, 67 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6556.9ms, 68 PlacesBefore, 68 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 1350 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): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7495.9ms, 77 PlacesBefore, 77 PlacesAfterwards, 121 TransitionsBefore, 121 TransitionsAfterwards, 2032 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): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5519.1ms, 86 PlacesBefore, 86 PlacesAfterwards, 164 TransitionsBefore, 164 TransitionsAfterwards, 2442 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): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4343.8ms, 95 PlacesBefore, 92 PlacesAfterwards, 163 TransitionsBefore, 163 TransitionsAfterwards, 2414 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): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1357.5ms, 87 PlacesBefore, 86 PlacesAfterwards, 144 TransitionsBefore, 144 TransitionsAfterwards, 1682 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): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 77 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): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, 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, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 15.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 330335.3ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 291828.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11541.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 116 SDtfs, 141 SDslu, 68 SDs, 0 SdLazy, 728 SolverSat, 272 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 690.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 246.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1739occurred in iteration=11, InterpolantAutomatonStates: 72, 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: 37.7ms SsaConstructionTime, 275.4ms SatisfiabilityAnalysisTime, 808.8ms InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 905 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...