/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/safe029_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:37:17,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:37:17,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:37:17,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:37:17,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:37:17,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:37:17,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:37:17,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:37:17,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:37:17,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:37:17,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:37:17,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:37:17,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:37:17,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:37:17,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:37:17,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:37:17,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:37:17,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:37:17,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:37:17,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:37:17,457 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 00:37:17,488 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:37:17,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:37:17,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:37:17,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:37:17,490 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:37:17,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:37:17,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:37:17,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:37:17,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:37:17,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:37:17,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:37:17,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:37:17,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:37:17,494 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:37:17,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:37:17,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:37:17,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:37:17,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:37:17,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:37:17,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:37:17,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:37:17,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:37:17,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:37:17,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:37:17,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:37:17,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:37:17,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:37:17,498 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:37:17,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:37:17,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:37:17,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:37:17,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:37:17,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:37:17,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:37:17,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:37:17,970 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:37:17,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.oepc.i [2021-04-29 00:37:18,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fe1bf8fa/c0854a37bd9044f79a6306bddb7a3282/FLAGc9c19286e [2021-04-29 00:37:18,693 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:37:18,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.oepc.i [2021-04-29 00:37:18,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fe1bf8fa/c0854a37bd9044f79a6306bddb7a3282/FLAGc9c19286e [2021-04-29 00:37:19,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fe1bf8fa/c0854a37bd9044f79a6306bddb7a3282 [2021-04-29 00:37:19,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:37:19,068 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:37:19,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:37:19,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:37:19,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:37:19,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2576360c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19, skipping insertion in model container [2021-04-29 00:37:19,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:37:19,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:37:19,397 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/safe029_tso.oepc.i[950,963] [2021-04-29 00:37:19,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:37:19,631 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:37:19,646 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/safe029_tso.oepc.i[950,963] [2021-04-29 00:37:19,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:37:19,816 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:37:19,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19 WrapperNode [2021-04-29 00:37:19,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:37:19,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:37:19,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:37:19,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:37:19,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:37:19,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:37:19,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:37:19,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:37:19,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (1/1) ... [2021-04-29 00:37:19,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:37:19,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:37:19,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:37:19,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:37:19,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (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 00:37:20,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:37:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:37:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:37:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:37:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:37:20,054 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:37:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:37:20,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:37:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:37:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:37:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:37:20,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:37:20,057 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 00:37:20,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:37:20,452 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:37:20,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:37:20 BoogieIcfgContainer [2021-04-29 00:37:20,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:37:20,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:37:20,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:37:20,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:37:20,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:37:19" (1/3) ... [2021-04-29 00:37:20,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4c1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:37:20, skipping insertion in model container [2021-04-29 00:37:20,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:19" (2/3) ... [2021-04-29 00:37:20,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4c1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:37:20, skipping insertion in model container [2021-04-29 00:37:20,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:37:20" (3/3) ... [2021-04-29 00:37:20,467 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.oepc.i [2021-04-29 00:37:20,473 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:37:20,479 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:37:20,480 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:37:20,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,534 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,537 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,537 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,544 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,545 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:20,547 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:37:20,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:37:20,601 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:37:20,602 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:37:20,602 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:37:20,602 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:37:20,602 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:37:20,602 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:37:20,602 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:37:20,602 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:37:20,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 59 transitions, 128 flow [2021-04-29 00:37:20,658 INFO L129 PetriNetUnfolder]: 2/57 cut-off events. [2021-04-29 00:37:20,658 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:20,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 57 events. 2/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 00:37:20,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 59 transitions, 128 flow [2021-04-29 00:37:20,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 47 transitions, 100 flow [2021-04-29 00:37:20,670 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:20,687 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 47 transitions, 100 flow [2021-04-29 00:37:20,692 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 47 transitions, 100 flow [2021-04-29 00:37:20,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 47 transitions, 100 flow [2021-04-29 00:37:20,710 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-04-29 00:37:20,711 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:20,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 47 events. 1/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-29 00:37:20,714 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:37:26,953 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:37:27,190 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:37:27,459 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:37:27,721 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:37:27,960 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:28,185 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:28,410 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:28,631 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:30,070 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:37:30,322 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:37:30,565 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:30,782 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:31,081 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:31,404 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:31,718 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:32,037 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:32,346 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:37:32,621 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:37:32,964 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:37:33,234 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:37:33,546 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:33,873 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:34,120 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:34,336 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:34,710 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-04-29 00:37:34,851 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 00:37:35,172 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-04-29 00:37:35,313 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 00:37:35,609 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-04-29 00:37:35,756 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-29 00:37:36,064 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-04-29 00:37:36,188 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-29 00:37:36,219 INFO L158 LiptonReduction]: Checked pairs total: 3760 [2021-04-29 00:37:36,219 INFO L160 LiptonReduction]: Total number of compositions: 88 [2021-04-29 00:37:36,222 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15553 [2021-04-29 00:37:36,241 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-04-29 00:37:36,241 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:36,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:36,242 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:37:36,243 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:36,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:36,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1039653936, now seen corresponding path program 1 times [2021-04-29 00:37:36,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:36,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57998755] [2021-04-29 00:37:36,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:36,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:36,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:36,508 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 00:37:36,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57998755] [2021-04-29 00:37:36,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:36,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:37:36,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518885224] [2021-04-29 00:37:36,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:37:36,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:36,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:37:36,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:37:36,540 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 147 [2021-04-29 00:37:36,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 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 00:37:36,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:36,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 147 [2021-04-29 00:37:36,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:36,635 INFO L129 PetriNetUnfolder]: 25/128 cut-off events. [2021-04-29 00:37:36,636 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:36,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 128 events. 25/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 653 event pairs, 7 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 160. Up to 50 conditions per place. [2021-04-29 00:37:36,638 INFO L132 encePairwiseOnDemand]: 138/147 looper letters, 3 selfloop transitions, 3 changer transitions 35/66 dead transitions. [2021-04-29 00:37:36,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 66 transitions, 180 flow [2021-04-29 00:37:36,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:37:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:37:36,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2021-04-29 00:37:36,656 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7664399092970522 [2021-04-29 00:37:36,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2021-04-29 00:37:36,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2021-04-29 00:37:36,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:36,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2021-04-29 00:37:36,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 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 00:37:36,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 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 00:37:36,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 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 00:37:36,676 INFO L185 Difference]: Start difference. First operand has 66 places, 59 transitions, 124 flow. Second operand 3 states and 338 transitions. [2021-04-29 00:37:36,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 66 transitions, 180 flow [2021-04-29 00:37:36,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:37:36,683 INFO L241 Difference]: Finished difference. Result has 67 places, 31 transitions, 81 flow [2021-04-29 00:37:36,686 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=67, PETRI_TRANSITIONS=31} [2021-04-29 00:37:36,687 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2021-04-29 00:37:36,687 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:36,687 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 31 transitions, 81 flow [2021-04-29 00:37:36,687 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 31 transitions, 81 flow [2021-04-29 00:37:36,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 81 flow [2021-04-29 00:37:36,694 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2021-04-29 00:37:36,694 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:36,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 41 events. 3/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 153 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 52. Up to 10 conditions per place. [2021-04-29 00:37:36,696 INFO L146 LiptonReduction]: Number of co-enabled transitions 450 [2021-04-29 00:37:36,710 INFO L158 LiptonReduction]: Checked pairs total: 178 [2021-04-29 00:37:36,711 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:36,711 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-29 00:37:36,713 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 81 flow [2021-04-29 00:37:36,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 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 00:37:36,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:36,714 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:36,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:37:36,714 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:36,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:36,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2130465066, now seen corresponding path program 1 times [2021-04-29 00:37:36,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:36,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052382928] [2021-04-29 00:37:36,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:36,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:36,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:36,787 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 00:37:36,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052382928] [2021-04-29 00:37:36,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:36,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:37:36,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403005569] [2021-04-29 00:37:36,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:37:36,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:36,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:37:36,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:37:36,792 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 147 [2021-04-29 00:37:36,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 00:37:36,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:36,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 147 [2021-04-29 00:37:36,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:36,811 INFO L129 PetriNetUnfolder]: 7/56 cut-off events. [2021-04-29 00:37:36,811 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 00:37:36,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 56 events. 7/56 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 217 event pairs, 3 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 84. Up to 15 conditions per place. [2021-04-29 00:37:36,812 INFO L132 encePairwiseOnDemand]: 143/147 looper letters, 3 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2021-04-29 00:37:36,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:36,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:37:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:37:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2021-04-29 00:37:36,816 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7097505668934241 [2021-04-29 00:37:36,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2021-04-29 00:37:36,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2021-04-29 00:37:36,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:36,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2021-04-29 00:37:36,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 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 00:37:36,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 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 00:37:36,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 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 00:37:36,822 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 81 flow. Second operand 3 states and 313 transitions. [2021-04-29 00:37:36,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:36,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:37:36,823 INFO L241 Difference]: Finished difference. Result has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:36,824 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2021-04-29 00:37:36,824 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -27 predicate places. [2021-04-29 00:37:36,824 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:36,825 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:36,825 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:36,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:36,833 INFO L129 PetriNetUnfolder]: 8/54 cut-off events. [2021-04-29 00:37:36,834 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 00:37:36,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 54 events. 8/54 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 236 event pairs, 3 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 83. Up to 15 conditions per place. [2021-04-29 00:37:36,835 INFO L146 LiptonReduction]: Number of co-enabled transitions 492 [2021-04-29 00:37:36,839 INFO L158 LiptonReduction]: Checked pairs total: 16 [2021-04-29 00:37:36,840 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:36,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 00:37:36,842 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:36,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 00:37:36,842 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:36,843 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:36,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:37:36,843 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:36,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:36,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1619905514, now seen corresponding path program 1 times [2021-04-29 00:37:36,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:36,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349903437] [2021-04-29 00:37:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:36,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:36,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:37:36,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:36,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:36,928 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 00:37:36,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349903437] [2021-04-29 00:37:36,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:36,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:37:36,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968846980] [2021-04-29 00:37:36,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:37:36,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:36,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:37:36,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:37:36,940 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 147 [2021-04-29 00:37:36,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 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 00:37:36,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:36,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 147 [2021-04-29 00:37:36,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:36,967 INFO L129 PetriNetUnfolder]: 4/58 cut-off events. [2021-04-29 00:37:36,968 INFO L130 PetriNetUnfolder]: For 21/27 co-relation queries the response was YES. [2021-04-29 00:37:36,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 58 events. 4/58 cut-off events. For 21/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 242 event pairs, 2 based on Foata normal form. 4/37 useless extension candidates. Maximal degree in co-relation 95. Up to 14 conditions per place. [2021-04-29 00:37:36,969 INFO L132 encePairwiseOnDemand]: 144/147 looper letters, 3 selfloop transitions, 3 changer transitions 1/33 dead transitions. [2021-04-29 00:37:36,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 109 flow [2021-04-29 00:37:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:37:36,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:37:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2021-04-29 00:37:36,971 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7074829931972789 [2021-04-29 00:37:36,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2021-04-29 00:37:36,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2021-04-29 00:37:36,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:36,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2021-04-29 00:37:36,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 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 00:37:36,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 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 00:37:36,977 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 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 00:37:36,977 INFO L185 Difference]: Start difference. First operand has 39 places, 33 transitions, 97 flow. Second operand 3 states and 312 transitions. [2021-04-29 00:37:36,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 109 flow [2021-04-29 00:37:36,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:37:36,981 INFO L241 Difference]: Finished difference. Result has 41 places, 32 transitions, 103 flow [2021-04-29 00:37:36,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2021-04-29 00:37:36,981 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -25 predicate places. [2021-04-29 00:37:36,982 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:36,982 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 32 transitions, 103 flow [2021-04-29 00:37:36,984 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 32 transitions, 103 flow [2021-04-29 00:37:36,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 32 transitions, 103 flow [2021-04-29 00:37:36,998 INFO L129 PetriNetUnfolder]: 4/61 cut-off events. [2021-04-29 00:37:36,998 INFO L130 PetriNetUnfolder]: For 28/29 co-relation queries the response was YES. [2021-04-29 00:37:37,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 61 events. 4/61 cut-off events. For 28/29 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 274 event pairs, 2 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 98. Up to 14 conditions per place. [2021-04-29 00:37:37,001 INFO L146 LiptonReduction]: Number of co-enabled transitions 454 [2021-04-29 00:37:37,006 INFO L158 LiptonReduction]: Checked pairs total: 15 [2021-04-29 00:37:37,007 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:37,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:37:37,011 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 103 flow [2021-04-29 00:37:37,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 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 00:37:37,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:37,012 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:37,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:37:37,012 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:37,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:37,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1619907281, now seen corresponding path program 1 times [2021-04-29 00:37:37,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:37,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664335079] [2021-04-29 00:37:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:37,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:37,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:37,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:37:37,146 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 00:37:37,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664335079] [2021-04-29 00:37:37,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:37,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:37:37,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311160537] [2021-04-29 00:37:37,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:37:37,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:37,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:37:37,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:37:37,152 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 147 [2021-04-29 00:37:37,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 00:37:37,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:37,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 147 [2021-04-29 00:37:37,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:37,408 INFO L129 PetriNetUnfolder]: 595/1281 cut-off events. [2021-04-29 00:37:37,408 INFO L130 PetriNetUnfolder]: For 341/567 co-relation queries the response was YES. [2021-04-29 00:37:37,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 1281 events. 595/1281 cut-off events. For 341/567 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 10756 event pairs, 174 based on Foata normal form. 32/333 useless extension candidates. Maximal degree in co-relation 2635. Up to 808 conditions per place. [2021-04-29 00:37:37,414 INFO L132 encePairwiseOnDemand]: 132/147 looper letters, 18 selfloop transitions, 19 changer transitions 9/59 dead transitions. [2021-04-29 00:37:37,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 249 flow [2021-04-29 00:37:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:37:37,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:37:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 469 transitions. [2021-04-29 00:37:37,417 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.638095238095238 [2021-04-29 00:37:37,418 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 469 transitions. [2021-04-29 00:37:37,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 469 transitions. [2021-04-29 00:37:37,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:37,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 469 transitions. [2021-04-29 00:37:37,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 0 states have call successors, (0), 0 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 00:37:37,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 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 00:37:37,423 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 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 00:37:37,423 INFO L185 Difference]: Start difference. First operand has 40 places, 32 transitions, 103 flow. Second operand 5 states and 469 transitions. [2021-04-29 00:37:37,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 249 flow [2021-04-29 00:37:37,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 244 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 00:37:37,427 INFO L241 Difference]: Finished difference. Result has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:37,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=46, PETRI_TRANSITIONS=49} [2021-04-29 00:37:37,427 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -20 predicate places. [2021-04-29 00:37:37,428 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:37,428 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:37,428 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:37,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:37,505 INFO L129 PetriNetUnfolder]: 175/764 cut-off events. [2021-04-29 00:37:37,506 INFO L130 PetriNetUnfolder]: For 415/441 co-relation queries the response was YES. [2021-04-29 00:37:37,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 764 events. 175/764 cut-off events. For 415/441 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 8412 event pairs, 139 based on Foata normal form. 4/221 useless extension candidates. Maximal degree in co-relation 2030. Up to 621 conditions per place. [2021-04-29 00:37:37,515 INFO L146 LiptonReduction]: Number of co-enabled transitions 476 [2021-04-29 00:37:37,523 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:37:37,523 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:37,523 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-04-29 00:37:37,525 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:37,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 00:37:37,525 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:37,526 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:37,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:37:37,526 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:37,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:37,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1335132336, now seen corresponding path program 1 times [2021-04-29 00:37:37,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:37,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680093217] [2021-04-29 00:37:37,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:37,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:37,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:37:37,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:37,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:37,566 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 00:37:37,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680093217] [2021-04-29 00:37:37,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:37,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:37:37,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886478791] [2021-04-29 00:37:37,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:37:37,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:37,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:37:37,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:37:37,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 147 [2021-04-29 00:37:37,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 49 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 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 00:37:37,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:37,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 147 [2021-04-29 00:37:37,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:37,697 INFO L129 PetriNetUnfolder]: 63/865 cut-off events. [2021-04-29 00:37:37,698 INFO L130 PetriNetUnfolder]: For 680/1602 co-relation queries the response was YES. [2021-04-29 00:37:37,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 865 events. 63/865 cut-off events. For 680/1602 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 11519 event pairs, 0 based on Foata normal form. 25/248 useless extension candidates. Maximal degree in co-relation 2360. Up to 684 conditions per place. [2021-04-29 00:37:37,701 INFO L132 encePairwiseOnDemand]: 144/147 looper letters, 3 selfloop transitions, 3 changer transitions 23/49 dead transitions. [2021-04-29 00:37:37,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 252 flow [2021-04-29 00:37:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:37:37,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:37:37,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2021-04-29 00:37:37,704 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7278911564625851 [2021-04-29 00:37:37,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 321 transitions. [2021-04-29 00:37:37,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 321 transitions. [2021-04-29 00:37:37,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:37,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 321 transitions. [2021-04-29 00:37:37,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 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 00:37:37,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 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 00:37:37,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 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 00:37:37,708 INFO L185 Difference]: Start difference. First operand has 46 places, 49 transitions, 240 flow. Second operand 3 states and 321 transitions. [2021-04-29 00:37:37,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 252 flow [2021-04-29 00:37:37,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 49 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:37:37,719 INFO L241 Difference]: Finished difference. Result has 49 places, 26 transitions, 142 flow [2021-04-29 00:37:37,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=49, PETRI_TRANSITIONS=26} [2021-04-29 00:37:37,719 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -17 predicate places. [2021-04-29 00:37:37,720 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:37,720 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 26 transitions, 142 flow [2021-04-29 00:37:37,720 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 26 transitions, 142 flow [2021-04-29 00:37:37,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 26 transitions, 142 flow [2021-04-29 00:37:37,737 INFO L129 PetriNetUnfolder]: 48/182 cut-off events. [2021-04-29 00:37:37,737 INFO L130 PetriNetUnfolder]: For 144/147 co-relation queries the response was YES. [2021-04-29 00:37:37,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 182 events. 48/182 cut-off events. For 144/147 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1198 event pairs, 21 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 485. Up to 121 conditions per place. [2021-04-29 00:37:37,739 INFO L146 LiptonReduction]: Number of co-enabled transitions 62 [2021-04-29 00:37:37,742 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:37:37,742 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:37,742 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:37:37,743 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 142 flow [2021-04-29 00:37:37,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 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 00:37:37,744 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:37,744 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:37,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:37:37,745 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:37,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:37,745 INFO L82 PathProgramCache]: Analyzing trace with hash -444964118, now seen corresponding path program 1 times [2021-04-29 00:37:37,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:37,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716228779] [2021-04-29 00:37:37,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:37,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:37,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:37,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:37,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:37,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:37,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:37:37,807 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 00:37:37,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716228779] [2021-04-29 00:37:37,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:37,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:37:37,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85759265] [2021-04-29 00:37:37,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:37:37,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:37,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:37:37,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:37:37,810 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 147 [2021-04-29 00:37:37,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 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 00:37:37,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:37,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 147 [2021-04-29 00:37:37,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:37,928 INFO L129 PetriNetUnfolder]: 54/185 cut-off events. [2021-04-29 00:37:37,928 INFO L130 PetriNetUnfolder]: For 196/262 co-relation queries the response was YES. [2021-04-29 00:37:37,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 185 events. 54/185 cut-off events. For 196/262 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1198 event pairs, 0 based on Foata normal form. 12/105 useless extension candidates. Maximal degree in co-relation 625. Up to 118 conditions per place. [2021-04-29 00:37:37,929 INFO L132 encePairwiseOnDemand]: 138/147 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2021-04-29 00:37:37,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 204 flow [2021-04-29 00:37:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:37:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:37:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2021-04-29 00:37:37,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2021-04-29 00:37:37,933 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2021-04-29 00:37:37,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2021-04-29 00:37:37,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:37,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2021-04-29 00:37:37,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:37,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 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 00:37:37,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 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 00:37:37,940 INFO L185 Difference]: Start difference. First operand has 35 places, 26 transitions, 142 flow. Second operand 6 states and 532 transitions. [2021-04-29 00:37:37,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 204 flow [2021-04-29 00:37:37,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 181 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-04-29 00:37:37,943 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2021-04-29 00:37:37,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2021-04-29 00:37:37,943 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -31 predicate places. [2021-04-29 00:37:37,944 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:37,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 0 transitions, 0 flow [2021-04-29 00:37:37,944 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 0 transitions, 0 flow [2021-04-29 00:37:37,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:37:37,945 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:37:37,945 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:37,945 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 00:37:37,945 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:37:37,946 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:37:37,946 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:37,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:37:37,956 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:37:37,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 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 00:37:37,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:37:37,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:37:37 BasicIcfg [2021-04-29 00:37:37,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:37:37,963 INFO L168 Benchmark]: Toolchain (without parser) took 18941.70 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 275.4 MB in the beginning and 292.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:37,963 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 273.0 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:37:37,967 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.83 ms. Allocated memory is still 302.0 MB. Free memory was 272.2 MB in the beginning and 271.4 MB in the end (delta: 767.6 kB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:37,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.13 ms. Allocated memory is still 302.0 MB. Free memory was 271.4 MB in the beginning and 269.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:37,973 INFO L168 Benchmark]: Boogie Preprocessor took 52.96 ms. Allocated memory is still 302.0 MB. Free memory was 269.3 MB in the beginning and 268.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:37,974 INFO L168 Benchmark]: RCFGBuilder took 503.66 ms. Allocated memory is still 302.0 MB. Free memory was 268.3 MB in the beginning and 247.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:37,975 INFO L168 Benchmark]: TraceAbstraction took 17504.12 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 247.3 MB in the beginning and 292.0 MB in the end (delta: -44.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:37,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 273.0 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 745.83 ms. Allocated memory is still 302.0 MB. Free memory was 272.2 MB in the beginning and 271.4 MB in the end (delta: 767.6 kB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 76.13 ms. Allocated memory is still 302.0 MB. Free memory was 271.4 MB in the beginning and 269.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 52.96 ms. Allocated memory is still 302.0 MB. Free memory was 269.3 MB in the beginning and 268.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 503.66 ms. Allocated memory is still 302.0 MB. Free memory was 268.3 MB in the beginning and 247.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17504.12 ms. Allocated memory was 302.0 MB in the beginning and 371.2 MB in the end (delta: 69.2 MB). Free memory was 247.3 MB in the beginning and 292.0 MB in the end (delta: -44.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15527.6ms, 53 PlacesBefore, 66 PlacesAfterwards, 47 TransitionsBefore, 59 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 3760 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1201, positive: 1041, positive conditional: 1041, positive unconditional: 0, negative: 160, negative conditional: 160, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 563, positive: 518, positive conditional: 0, positive unconditional: 518, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 563, positive: 518, positive conditional: 0, positive unconditional: 518, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 563, positive: 507, positive conditional: 0, positive unconditional: 507, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 432, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 352, negative conditional: 0, negative unconditional: 352, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1201, positive: 523, positive conditional: 523, positive unconditional: 0, negative: 115, negative conditional: 115, negative unconditional: 0, unknown: 563, unknown conditional: 563, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 510, Positive conditional cache size: 510, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.3ms, 67 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 563, Positive cache size: 516, Positive conditional cache size: 516, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.7ms, 39 PlacesBefore, 39 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 564, Positive cache size: 517, Positive conditional cache size: 517, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.0ms, 41 PlacesBefore, 40 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 454 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 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: 5, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 520, Positive conditional cache size: 520, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 94.9ms, 46 PlacesBefore, 46 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 476 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): 567, Positive cache size: 520, Positive conditional cache size: 520, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.7ms, 49 PlacesBefore, 35 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 62 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): 567, Positive cache size: 520, Positive conditional cache size: 520, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6ms, 35 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): 567, Positive cache size: 520, Positive conditional cache size: 520, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, 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 3 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 17364.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 795.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15628.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 35 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 125 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 202.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 87.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=4, InterpolantAutomatonStates: 23, 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: 14.4ms SsaConstructionTime, 151.0ms SatisfiabilityAnalysisTime, 348.9ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...