/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/safe023_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:23:48,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:23:48,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:23:48,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:23:48,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:23:48,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:23:48,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:23:48,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:23:48,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:23:48,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:23:48,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:23:48,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:23:48,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:23:48,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:23:48,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:23:48,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:23:48,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:23:48,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:23:48,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:23:48,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:23:48,660 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 00:23:48,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:23:48,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:23:48,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:23:48,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:23:48,717 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:23:48,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:23:48,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:23:48,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:23:48,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:23:48,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:23:48,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:23:48,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:23:48,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:23:48,720 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:23:48,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:23:48,720 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:23:48,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:23:48,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:23:48,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:23:48,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:23:48,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:23:48,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:23:48,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:23:48,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:23:48,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:23:48,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:23:48,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:23:48,723 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:23:48,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:23:48,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:23:48,724 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:23:49,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:23:49,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:23:49,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:23:49,163 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:23:49,163 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:23:49,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2021-04-29 00:23:49,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14151322/007ac21f7e8c44a19e270d95d6522701/FLAGbd556cc9b [2021-04-29 00:23:50,012 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:23:50,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2021-04-29 00:23:50,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14151322/007ac21f7e8c44a19e270d95d6522701/FLAGbd556cc9b [2021-04-29 00:23:50,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14151322/007ac21f7e8c44a19e270d95d6522701 [2021-04-29 00:23:50,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:23:50,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:23:50,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:23:50,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:23:50,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:23:50,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d9000c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50, skipping insertion in model container [2021-04-29 00:23:50,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:23:50,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:23:50,551 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/safe023_tso.opt.i[949,962] [2021-04-29 00:23:50,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:23:50,705 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:23:50,719 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/safe023_tso.opt.i[949,962] [2021-04-29 00:23:50,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:23:50,851 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:23:50,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50 WrapperNode [2021-04-29 00:23:50,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:23:50,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:23:50,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:23:50,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:23:50,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:23:50,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:23:50,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:23:50,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:23:50,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (1/1) ... [2021-04-29 00:23:50,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:23:50,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:23:50,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:23:50,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:23:50,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (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 00:23:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:23:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:23:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:23:51,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:23:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:23:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:23:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:23:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:23:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:23:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:23:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:23:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:23:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:23:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:23:51,037 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 00:23:51,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:23:51,409 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:23:51,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:23:51 BoogieIcfgContainer [2021-04-29 00:23:51,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:23:51,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:23:51,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:23:51,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:23:51,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:23:50" (1/3) ... [2021-04-29 00:23:51,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302f692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:23:51, skipping insertion in model container [2021-04-29 00:23:51,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:23:50" (2/3) ... [2021-04-29 00:23:51,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302f692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:23:51, skipping insertion in model container [2021-04-29 00:23:51,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:23:51" (3/3) ... [2021-04-29 00:23:51,421 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2021-04-29 00:23:51,429 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:23:51,434 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:23:51,435 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:23:51,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,478 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,478 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,481 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,481 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,523 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,523 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:23:51,526 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:23:51,551 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:23:51,577 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:23:51,577 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:23:51,577 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:23:51,577 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:23:51,578 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:23:51,578 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:23:51,578 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:23:51,578 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:23:51,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-29 00:23:51,639 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-29 00:23:51,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:23:51,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:23:51,645 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-29 00:23:51,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-29 00:23:51,652 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:23:51,669 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-29 00:23:51,673 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-29 00:23:51,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-29 00:23:51,697 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-29 00:23:51,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:23:51,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:23:51,706 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:23:55,948 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:23:56,103 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:23:56,397 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:23:56,555 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:23:56,714 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:23:56,896 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:23:57,065 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:23:57,278 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:23:57,493 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:23:57,678 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:23:57,856 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:23:58,819 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-29 00:23:59,146 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-29 00:24:00,276 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-29 00:24:00,569 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-29 00:24:00,985 INFO L158 LiptonReduction]: Checked pairs total: 5474 [2021-04-29 00:24:00,985 INFO L160 LiptonReduction]: Total number of compositions: 87 [2021-04-29 00:24:00,988 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9338 [2021-04-29 00:24:01,011 INFO L129 PetriNetUnfolder]: 0/64 cut-off events. [2021-04-29 00:24:01,012 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:24:01,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:24:01,013 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:24:01,013 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:24:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:24:01,019 INFO L82 PathProgramCache]: Analyzing trace with hash 180717998, now seen corresponding path program 1 times [2021-04-29 00:24:01,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:24:01,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177489168] [2021-04-29 00:24:01,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:24:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:24:01,323 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:24:01,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:24:01,350 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 00:24:01,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177489168] [2021-04-29 00:24:01,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:24:01,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:24:01,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868766128] [2021-04-29 00:24:01,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:24:01,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:24:01,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:24:01,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:24:01,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 162 [2021-04-29 00:24:01,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 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 00:24:01,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:24:01,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 162 [2021-04-29 00:24:01,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:24:01,607 INFO L129 PetriNetUnfolder]: 302/851 cut-off events. [2021-04-29 00:24:01,608 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:24:01,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 851 events. 302/851 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 6973 event pairs, 84 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 1343. Up to 300 conditions per place. [2021-04-29 00:24:01,618 INFO L132 encePairwiseOnDemand]: 142/162 looper letters, 6 selfloop transitions, 6 changer transitions 34/78 dead transitions. [2021-04-29 00:24:01,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 78 transitions, 235 flow [2021-04-29 00:24:01,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:24:01,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:24:01,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2021-04-29 00:24:01,643 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7242798353909465 [2021-04-29 00:24:01,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 352 transitions. [2021-04-29 00:24:01,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions. [2021-04-29 00:24:01,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:24:01,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions. [2021-04-29 00:24:01,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 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 00:24:01,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 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 00:24:01,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 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 00:24:01,678 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 352 transitions. [2021-04-29 00:24:01,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 78 transitions, 235 flow [2021-04-29 00:24:01,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 232 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:24:01,688 INFO L241 Difference]: Finished difference. Result has 79 places, 44 transitions, 130 flow [2021-04-29 00:24:01,690 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=79, PETRI_TRANSITIONS=44} [2021-04-29 00:24:01,691 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-29 00:24:01,691 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:24:01,691 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 44 transitions, 130 flow [2021-04-29 00:24:01,692 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 44 transitions, 130 flow [2021-04-29 00:24:01,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 130 flow [2021-04-29 00:24:01,721 INFO L129 PetriNetUnfolder]: 46/212 cut-off events. [2021-04-29 00:24:01,721 INFO L130 PetriNetUnfolder]: For 28/32 co-relation queries the response was YES. [2021-04-29 00:24:01,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 212 events. 46/212 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1330 event pairs, 14 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 358. Up to 53 conditions per place. [2021-04-29 00:24:01,730 INFO L146 LiptonReduction]: Number of co-enabled transitions 990 [2021-04-29 00:24:01,741 INFO L158 LiptonReduction]: Checked pairs total: 221 [2021-04-29 00:24:01,742 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:24:01,742 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-04-29 00:24:01,744 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 130 flow [2021-04-29 00:24:01,745 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 00:24:01,745 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:24:01,745 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:24:01,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:24:01,745 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:24:01,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:24:01,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1307288752, now seen corresponding path program 1 times [2021-04-29 00:24:01,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:24:01,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019100824] [2021-04-29 00:24:01,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:24:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:24:01,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:01,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:01,889 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:24:01,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:24:01,901 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 00:24:01,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019100824] [2021-04-29 00:24:01,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:24:01,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:24:01,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735461345] [2021-04-29 00:24:01,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:24:01,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:24:01,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:24:01,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:24:01,907 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 162 [2021-04-29 00:24:01,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:01,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:24:01,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 162 [2021-04-29 00:24:01,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:24:01,952 INFO L129 PetriNetUnfolder]: 40/186 cut-off events. [2021-04-29 00:24:01,952 INFO L130 PetriNetUnfolder]: For 39/97 co-relation queries the response was YES. [2021-04-29 00:24:01,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 186 events. 40/186 cut-off events. For 39/97 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1079 event pairs, 3 based on Foata normal form. 1/121 useless extension candidates. Maximal degree in co-relation 402. Up to 50 conditions per place. [2021-04-29 00:24:01,955 INFO L132 encePairwiseOnDemand]: 155/162 looper letters, 10 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2021-04-29 00:24:01,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 49 transitions, 190 flow [2021-04-29 00:24:01,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:24:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:24:01,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 435 transitions. [2021-04-29 00:24:01,958 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6712962962962963 [2021-04-29 00:24:01,958 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 435 transitions. [2021-04-29 00:24:01,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 435 transitions. [2021-04-29 00:24:01,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:24:01,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 435 transitions. [2021-04-29 00:24:01,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:01,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:01,964 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:01,964 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 130 flow. Second operand 4 states and 435 transitions. [2021-04-29 00:24:01,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 49 transitions, 190 flow [2021-04-29 00:24:01,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 49 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:24:01,968 INFO L241 Difference]: Finished difference. Result has 54 places, 47 transitions, 166 flow [2021-04-29 00:24:01,968 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2021-04-29 00:24:01,969 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -24 predicate places. [2021-04-29 00:24:01,969 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:24:01,969 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 47 transitions, 166 flow [2021-04-29 00:24:01,969 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 47 transitions, 166 flow [2021-04-29 00:24:01,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 47 transitions, 166 flow [2021-04-29 00:24:01,992 INFO L129 PetriNetUnfolder]: 40/216 cut-off events. [2021-04-29 00:24:01,992 INFO L130 PetriNetUnfolder]: For 81/84 co-relation queries the response was YES. [2021-04-29 00:24:01,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 216 events. 40/216 cut-off events. For 81/84 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1407 event pairs, 14 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 401. Up to 50 conditions per place. [2021-04-29 00:24:01,998 INFO L146 LiptonReduction]: Number of co-enabled transitions 1084 [2021-04-29 00:24:02,012 INFO L158 LiptonReduction]: Checked pairs total: 236 [2021-04-29 00:24:02,012 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:24:02,012 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 00:24:02,014 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 166 flow [2021-04-29 00:24:02,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:02,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:24:02,015 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:24:02,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:24:02,015 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:24:02,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:24:02,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1307289186, now seen corresponding path program 1 times [2021-04-29 00:24:02,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:24:02,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804684302] [2021-04-29 00:24:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:24:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:24:02,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:02,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:02,070 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:24:02,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:24:02,079 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 00:24:02,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804684302] [2021-04-29 00:24:02,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:24:02,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:24:02,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561917870] [2021-04-29 00:24:02,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:24:02,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:24:02,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:24:02,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:24:02,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 162 [2021-04-29 00:24:02,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:24:02,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:24:02,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 162 [2021-04-29 00:24:02,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:24:02,170 INFO L129 PetriNetUnfolder]: 72/264 cut-off events. [2021-04-29 00:24:02,170 INFO L130 PetriNetUnfolder]: For 233/328 co-relation queries the response was YES. [2021-04-29 00:24:02,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 264 events. 72/264 cut-off events. For 233/328 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1554 event pairs, 6 based on Foata normal form. 15/194 useless extension candidates. Maximal degree in co-relation 661. Up to 77 conditions per place. [2021-04-29 00:24:02,173 INFO L132 encePairwiseOnDemand]: 154/162 looper letters, 13 selfloop transitions, 17 changer transitions 4/65 dead transitions. [2021-04-29 00:24:02,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 354 flow [2021-04-29 00:24:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:24:02,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:24:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 539 transitions. [2021-04-29 00:24:02,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6654320987654321 [2021-04-29 00:24:02,176 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 539 transitions. [2021-04-29 00:24:02,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 539 transitions. [2021-04-29 00:24:02,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:24:02,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 539 transitions. [2021-04-29 00:24:02,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:02,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 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 00:24:02,182 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 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 00:24:02,182 INFO L185 Difference]: Start difference. First operand has 54 places, 47 transitions, 166 flow. Second operand 5 states and 539 transitions. [2021-04-29 00:24:02,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 354 flow [2021-04-29 00:24:02,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:24:02,186 INFO L241 Difference]: Finished difference. Result has 60 places, 57 transitions, 306 flow [2021-04-29 00:24:02,187 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2021-04-29 00:24:02,187 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -18 predicate places. [2021-04-29 00:24:02,187 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:24:02,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 57 transitions, 306 flow [2021-04-29 00:24:02,188 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 57 transitions, 306 flow [2021-04-29 00:24:02,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 57 transitions, 306 flow [2021-04-29 00:24:02,214 INFO L129 PetriNetUnfolder]: 57/227 cut-off events. [2021-04-29 00:24:02,215 INFO L130 PetriNetUnfolder]: For 291/294 co-relation queries the response was YES. [2021-04-29 00:24:02,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 227 events. 57/227 cut-off events. For 291/294 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1346 event pairs, 2 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 592. Up to 70 conditions per place. [2021-04-29 00:24:02,222 INFO L146 LiptonReduction]: Number of co-enabled transitions 1386 [2021-04-29 00:24:02,231 INFO L158 LiptonReduction]: Checked pairs total: 36 [2021-04-29 00:24:02,231 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:24:02,231 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-04-29 00:24:02,233 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 306 flow [2021-04-29 00:24:02,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:24:02,234 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:24:02,234 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:24:02,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:24:02,234 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:24:02,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:24:02,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1870678752, now seen corresponding path program 1 times [2021-04-29 00:24:02,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:24:02,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359540946] [2021-04-29 00:24:02,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:24:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:24:02,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:02,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:02,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:02,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:02,285 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 00:24:02,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359540946] [2021-04-29 00:24:02,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:24:02,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:24:02,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890481783] [2021-04-29 00:24:02,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:24:02,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:24:02,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:24:02,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:24:02,289 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 162 [2021-04-29 00:24:02,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 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 00:24:02,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:24:02,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 162 [2021-04-29 00:24:02,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:24:02,342 INFO L129 PetriNetUnfolder]: 42/217 cut-off events. [2021-04-29 00:24:02,342 INFO L130 PetriNetUnfolder]: For 392/413 co-relation queries the response was YES. [2021-04-29 00:24:02,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 217 events. 42/217 cut-off events. For 392/413 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1385 event pairs, 10 based on Foata normal form. 15/155 useless extension candidates. Maximal degree in co-relation 557. Up to 65 conditions per place. [2021-04-29 00:24:02,345 INFO L132 encePairwiseOnDemand]: 158/162 looper letters, 1 selfloop transitions, 5 changer transitions 10/57 dead transitions. [2021-04-29 00:24:02,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 57 transitions, 320 flow [2021-04-29 00:24:02,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:24:02,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:24:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 471 transitions. [2021-04-29 00:24:02,348 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7268518518518519 [2021-04-29 00:24:02,348 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 471 transitions. [2021-04-29 00:24:02,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 471 transitions. [2021-04-29 00:24:02,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:24:02,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 471 transitions. [2021-04-29 00:24:02,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 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 00:24:02,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:02,353 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:02,353 INFO L185 Difference]: Start difference. First operand has 60 places, 57 transitions, 306 flow. Second operand 4 states and 471 transitions. [2021-04-29 00:24:02,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 57 transitions, 320 flow [2021-04-29 00:24:02,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 57 transitions, 320 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:24:02,359 INFO L241 Difference]: Finished difference. Result has 65 places, 47 transitions, 230 flow [2021-04-29 00:24:02,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2021-04-29 00:24:02,359 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -13 predicate places. [2021-04-29 00:24:02,359 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:24:02,360 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 47 transitions, 230 flow [2021-04-29 00:24:02,360 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 47 transitions, 230 flow [2021-04-29 00:24:02,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 47 transitions, 230 flow [2021-04-29 00:24:02,373 INFO L129 PetriNetUnfolder]: 15/107 cut-off events. [2021-04-29 00:24:02,374 INFO L130 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2021-04-29 00:24:02,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 107 events. 15/107 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 509 event pairs, 2 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 255. Up to 29 conditions per place. [2021-04-29 00:24:02,377 INFO L146 LiptonReduction]: Number of co-enabled transitions 1012 [2021-04-29 00:24:02,384 INFO L158 LiptonReduction]: Checked pairs total: 26 [2021-04-29 00:24:02,384 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:24:02,384 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:24:02,386 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 47 transitions, 230 flow [2021-04-29 00:24:02,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 116.75) internal successors, (467), 4 states have internal predecessors, (467), 0 states have call successors, (0), 0 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 00:24:02,387 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:24:02,387 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:24:02,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:24:02,387 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:24:02,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:24:02,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2121002478, now seen corresponding path program 1 times [2021-04-29 00:24:02,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:24:02,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665399040] [2021-04-29 00:24:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:24:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:24:02,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:02,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:02,429 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 00:24:02,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665399040] [2021-04-29 00:24:02,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:24:02,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:24:02,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116385464] [2021-04-29 00:24:02,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:24:02,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:24:02,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:24:02,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:24:02,432 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 162 [2021-04-29 00:24:02,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 47 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 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 00:24:02,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:24:02,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 162 [2021-04-29 00:24:02,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:24:02,451 INFO L129 PetriNetUnfolder]: 11/85 cut-off events. [2021-04-29 00:24:02,451 INFO L130 PetriNetUnfolder]: For 125/125 co-relation queries the response was YES. [2021-04-29 00:24:02,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 85 events. 11/85 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 370 event pairs, 2 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 213. Up to 20 conditions per place. [2021-04-29 00:24:02,452 INFO L132 encePairwiseOnDemand]: 159/162 looper letters, 1 selfloop transitions, 4 changer transitions 4/47 dead transitions. [2021-04-29 00:24:02,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 47 transitions, 242 flow [2021-04-29 00:24:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:24:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:24:02,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2021-04-29 00:24:02,455 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7674897119341564 [2021-04-29 00:24:02,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2021-04-29 00:24:02,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2021-04-29 00:24:02,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:24:02,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2021-04-29 00:24:02,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 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 00:24:02,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 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 00:24:02,459 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 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 00:24:02,459 INFO L185 Difference]: Start difference. First operand has 64 places, 47 transitions, 230 flow. Second operand 3 states and 373 transitions. [2021-04-29 00:24:02,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 47 transitions, 242 flow [2021-04-29 00:24:02,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 47 transitions, 194 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-04-29 00:24:02,465 INFO L241 Difference]: Finished difference. Result has 59 places, 43 transitions, 172 flow [2021-04-29 00:24:02,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2021-04-29 00:24:02,465 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -19 predicate places. [2021-04-29 00:24:02,465 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:24:02,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 43 transitions, 172 flow [2021-04-29 00:24:02,466 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 43 transitions, 172 flow [2021-04-29 00:24:02,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 43 transitions, 172 flow [2021-04-29 00:24:02,477 INFO L129 PetriNetUnfolder]: 7/78 cut-off events. [2021-04-29 00:24:02,477 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2021-04-29 00:24:02,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 78 events. 7/78 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 338 event pairs, 1 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 158. Up to 15 conditions per place. [2021-04-29 00:24:02,480 INFO L146 LiptonReduction]: Number of co-enabled transitions 856 [2021-04-29 00:24:02,487 INFO L158 LiptonReduction]: Checked pairs total: 22 [2021-04-29 00:24:02,487 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:24:02,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:24:02,491 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 172 flow [2021-04-29 00:24:02,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 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 00:24:02,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:24:02,491 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:24:02,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:24:02,492 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:24:02,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:24:02,492 INFO L82 PathProgramCache]: Analyzing trace with hash -115451308, now seen corresponding path program 1 times [2021-04-29 00:24:02,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:24:02,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905127069] [2021-04-29 00:24:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:24:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:24:02,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:02,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:02,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:02,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:02,657 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 00:24:02,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905127069] [2021-04-29 00:24:02,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:24:02,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:24:02,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865824131] [2021-04-29 00:24:02,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:24:02,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:24:02,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:24:02,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:24:02,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 162 [2021-04-29 00:24:02,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 43 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:02,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:24:02,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 162 [2021-04-29 00:24:02,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:24:03,257 INFO L129 PetriNetUnfolder]: 2801/4737 cut-off events. [2021-04-29 00:24:03,257 INFO L130 PetriNetUnfolder]: For 261/607 co-relation queries the response was YES. [2021-04-29 00:24:03,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9620 conditions, 4737 events. 2801/4737 cut-off events. For 261/607 co-relation queries the response was YES. Maximal size of possible extension queue 924. Compared 39171 event pairs, 1244 based on Foata normal form. 21/1211 useless extension candidates. Maximal degree in co-relation 9603. Up to 3022 conditions per place. [2021-04-29 00:24:03,289 INFO L132 encePairwiseOnDemand]: 144/162 looper letters, 27 selfloop transitions, 22 changer transitions 9/79 dead transitions. [2021-04-29 00:24:03,289 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 79 transitions, 360 flow [2021-04-29 00:24:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:24:03,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:24:03,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 581 transitions. [2021-04-29 00:24:03,292 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.717283950617284 [2021-04-29 00:24:03,292 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 581 transitions. [2021-04-29 00:24:03,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 581 transitions. [2021-04-29 00:24:03,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:24:03,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 581 transitions. [2021-04-29 00:24:03,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 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 00:24:03,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 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 00:24:03,298 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 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 00:24:03,298 INFO L185 Difference]: Start difference. First operand has 58 places, 43 transitions, 172 flow. Second operand 5 states and 581 transitions. [2021-04-29 00:24:03,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 79 transitions, 360 flow [2021-04-29 00:24:03,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 79 transitions, 348 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:24:03,302 INFO L241 Difference]: Finished difference. Result has 62 places, 63 transitions, 338 flow [2021-04-29 00:24:03,302 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=338, PETRI_PLACES=62, PETRI_TRANSITIONS=63} [2021-04-29 00:24:03,303 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -16 predicate places. [2021-04-29 00:24:03,303 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:24:03,303 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 63 transitions, 338 flow [2021-04-29 00:24:03,303 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 63 transitions, 338 flow [2021-04-29 00:24:03,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 63 transitions, 338 flow [2021-04-29 00:24:03,727 INFO L129 PetriNetUnfolder]: 2269/4214 cut-off events. [2021-04-29 00:24:03,727 INFO L130 PetriNetUnfolder]: For 991/3359 co-relation queries the response was YES. [2021-04-29 00:24:03,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11785 conditions, 4214 events. 2269/4214 cut-off events. For 991/3359 co-relation queries the response was YES. Maximal size of possible extension queue 893. Compared 37043 event pairs, 1252 based on Foata normal form. 5/1069 useless extension candidates. Maximal degree in co-relation 11768. Up to 3960 conditions per place. [2021-04-29 00:24:03,837 INFO L146 LiptonReduction]: Number of co-enabled transitions 1006 [2021-04-29 00:24:03,852 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:24:03,852 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:24:03,852 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 549 [2021-04-29 00:24:03,854 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 63 transitions, 338 flow [2021-04-29 00:24:03,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:03,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:24:03,855 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:24:03,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:24:03,855 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:24:03,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:24:03,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1097625827, now seen corresponding path program 1 times [2021-04-29 00:24:03,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:24:03,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315474896] [2021-04-29 00:24:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:24:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:24:03,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:03,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:03,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:03,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:03,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:03,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:03,915 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 00:24:03,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315474896] [2021-04-29 00:24:03,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:24:03,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:24:03,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372477099] [2021-04-29 00:24:03,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:24:03,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:24:03,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:24:03,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:24:03,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 162 [2021-04-29 00:24:03,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 63 transitions, 338 flow. Second operand has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:03,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:24:03,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 162 [2021-04-29 00:24:03,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:24:04,711 INFO L129 PetriNetUnfolder]: 2300/4611 cut-off events. [2021-04-29 00:24:04,712 INFO L130 PetriNetUnfolder]: For 1803/9131 co-relation queries the response was YES. [2021-04-29 00:24:04,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17379 conditions, 4611 events. 2300/4611 cut-off events. For 1803/9131 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 44950 event pairs, 245 based on Foata normal form. 45/1436 useless extension candidates. Maximal degree in co-relation 17360. Up to 4203 conditions per place. [2021-04-29 00:24:04,751 INFO L132 encePairwiseOnDemand]: 144/162 looper letters, 16 selfloop transitions, 42 changer transitions 21/100 dead transitions. [2021-04-29 00:24:04,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 695 flow [2021-04-29 00:24:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:24:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:24:04,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 809 transitions. [2021-04-29 00:24:04,754 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7134038800705468 [2021-04-29 00:24:04,755 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 809 transitions. [2021-04-29 00:24:04,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 809 transitions. [2021-04-29 00:24:04,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:24:04,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 809 transitions. [2021-04-29 00:24:04,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.57142857142857) internal successors, (809), 7 states have internal predecessors, (809), 0 states have call successors, (0), 0 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 00:24:04,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 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 00:24:04,762 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 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 00:24:04,762 INFO L185 Difference]: Start difference. First operand has 62 places, 63 transitions, 338 flow. Second operand 7 states and 809 transitions. [2021-04-29 00:24:04,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 695 flow [2021-04-29 00:24:04,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 100 transitions, 695 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:24:04,786 INFO L241 Difference]: Finished difference. Result has 71 places, 77 transitions, 572 flow [2021-04-29 00:24:04,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=572, PETRI_PLACES=71, PETRI_TRANSITIONS=77} [2021-04-29 00:24:04,787 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -7 predicate places. [2021-04-29 00:24:04,787 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:24:04,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 77 transitions, 572 flow [2021-04-29 00:24:04,788 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 77 transitions, 572 flow [2021-04-29 00:24:04,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 77 transitions, 572 flow [2021-04-29 00:24:05,145 INFO L129 PetriNetUnfolder]: 730/2492 cut-off events. [2021-04-29 00:24:05,146 INFO L130 PetriNetUnfolder]: For 3499/8789 co-relation queries the response was YES. [2021-04-29 00:24:05,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11036 conditions, 2492 events. 730/2492 cut-off events. For 3499/8789 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 29235 event pairs, 244 based on Foata normal form. 4/672 useless extension candidates. Maximal degree in co-relation 11014. Up to 2223 conditions per place. [2021-04-29 00:24:05,200 INFO L146 LiptonReduction]: Number of co-enabled transitions 1066 [2021-04-29 00:24:05,219 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:24:05,219 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:24:05,219 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 432 [2021-04-29 00:24:05,221 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 77 transitions, 572 flow [2021-04-29 00:24:05,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:24:05,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:24:05,221 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:24:05,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:24:05,222 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:24:05,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:24:05,222 INFO L82 PathProgramCache]: Analyzing trace with hash 291653811, now seen corresponding path program 1 times [2021-04-29 00:24:05,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:24:05,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480086950] [2021-04-29 00:24:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:24:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:24:05,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:05,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:05,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:05,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:05,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:05,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:05,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:24:05,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:24:05,283 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 00:24:05,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480086950] [2021-04-29 00:24:05,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:24:05,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:24:05,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356249023] [2021-04-29 00:24:05,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:24:05,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:24:05,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:24:05,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:24:05,287 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 162 [2021-04-29 00:24:05,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 77 transitions, 572 flow. Second operand has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 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 00:24:05,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:24:05,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 162 [2021-04-29 00:24:05,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:24:05,932 INFO L129 PetriNetUnfolder]: 617/2550 cut-off events. [2021-04-29 00:24:05,932 INFO L130 PetriNetUnfolder]: For 3525/18113 co-relation queries the response was YES. [2021-04-29 00:24:05,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13546 conditions, 2550 events. 617/2550 cut-off events. For 3525/18113 co-relation queries the response was YES. Maximal size of possible extension queue 864. Compared 32470 event pairs, 2 based on Foata normal form. 47/797 useless extension candidates. Maximal degree in co-relation 13522. Up to 2196 conditions per place. [2021-04-29 00:24:05,953 INFO L132 encePairwiseOnDemand]: 144/162 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2021-04-29 00:24:05,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 90 transitions, 780 flow [2021-04-29 00:24:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:24:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:24:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1005 transitions. [2021-04-29 00:24:05,957 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6893004115226338 [2021-04-29 00:24:05,957 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1005 transitions. [2021-04-29 00:24:05,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1005 transitions. [2021-04-29 00:24:05,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:24:05,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1005 transitions. [2021-04-29 00:24:05,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 111.66666666666667) internal successors, (1005), 9 states have internal predecessors, (1005), 0 states have call successors, (0), 0 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 00:24:05,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 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 00:24:05,965 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 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 00:24:05,965 INFO L185 Difference]: Start difference. First operand has 71 places, 77 transitions, 572 flow. Second operand 9 states and 1005 transitions. [2021-04-29 00:24:05,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 90 transitions, 780 flow [2021-04-29 00:24:06,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 90 transitions, 655 flow, removed 31 selfloop flow, removed 7 redundant places. [2021-04-29 00:24:06,209 INFO L241 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2021-04-29 00:24:06,209 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2021-04-29 00:24:06,210 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -7 predicate places. [2021-04-29 00:24:06,210 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:24:06,210 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 0 transitions, 0 flow [2021-04-29 00:24:06,210 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 0 transitions, 0 flow [2021-04-29 00:24:06,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:24:06,211 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:24:06,211 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:24:06,211 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 00:24:06,211 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:24:06,211 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:24:06,212 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:24:06,212 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:24:06,213 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:24:06,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 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 00:24:06,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:24:06,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:24:06 BasicIcfg [2021-04-29 00:24:06,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:24:06,219 INFO L168 Benchmark]: Toolchain (without parser) took 15969.71 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 275.5 MB in the beginning and 362.4 MB in the end (delta: -86.9 MB). Peak memory consumption was 49.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:24:06,220 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:24:06,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.21 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 269.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:24:06,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.71 ms. Allocated memory is still 302.0 MB. Free memory was 269.2 MB in the beginning and 267.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:24:06,221 INFO L168 Benchmark]: Boogie Preprocessor took 30.78 ms. Allocated memory is still 302.0 MB. Free memory was 267.1 MB in the beginning and 265.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:24:06,222 INFO L168 Benchmark]: RCFGBuilder took 479.38 ms. Allocated memory is still 302.0 MB. Free memory was 265.9 MB in the beginning and 243.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:24:06,223 INFO L168 Benchmark]: TraceAbstraction took 14805.29 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 243.3 MB in the beginning and 362.4 MB in the end (delta: -119.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:24:06,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 548.21 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 269.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.71 ms. Allocated memory is still 302.0 MB. Free memory was 269.2 MB in the beginning and 267.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.78 ms. Allocated memory is still 302.0 MB. Free memory was 267.1 MB in the beginning and 265.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 479.38 ms. Allocated memory is still 302.0 MB. Free memory was 265.9 MB in the beginning and 243.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14805.29 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 243.3 MB in the beginning and 362.4 MB in the end (delta: -119.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9311.7ms, 69 PlacesBefore, 78 PlacesAfterwards, 60 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 5474 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1771, positive: 1609, positive conditional: 1609, positive unconditional: 0, negative: 162, negative conditional: 162, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 898, positive: 837, positive conditional: 0, positive unconditional: 837, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 898, positive: 837, positive conditional: 0, positive unconditional: 837, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 898, positive: 806, positive conditional: 0, positive unconditional: 806, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 92, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 487, positive: 168, positive conditional: 0, positive unconditional: 168, negative: 319, negative conditional: 0, negative unconditional: 319, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1771, positive: 772, positive conditional: 772, positive unconditional: 0, negative: 101, negative conditional: 101, negative unconditional: 0, unknown: 898, unknown conditional: 898, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 895, Positive cache size: 834, Positive conditional cache size: 834, Positive unconditional cache size: 0, Negative cache size: 61, Negative conditional cache size: 61, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.3ms, 79 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 990 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 221 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 905, Positive cache size: 843, Positive conditional cache size: 843, Positive unconditional cache size: 0, Negative cache size: 62, Negative conditional cache size: 62, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.7ms, 54 PlacesBefore, 54 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 1084 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 236 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 909, Positive cache size: 846, Positive conditional cache size: 846, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.4ms, 60 PlacesBefore, 60 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 909, Positive cache size: 846, Positive conditional cache size: 846, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.1ms, 65 PlacesBefore, 64 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 1012 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 909, Positive cache size: 846, Positive conditional cache size: 846, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.8ms, 59 PlacesBefore, 58 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 856 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 909, Positive cache size: 846, Positive conditional cache size: 846, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 548.9ms, 62 PlacesBefore, 62 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 1006 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): 909, Positive cache size: 846, Positive conditional cache size: 846, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 431.4ms, 71 PlacesBefore, 71 PlacesAfterwards, 77 TransitionsBefore, 77 TransitionsAfterwards, 1066 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): 909, Positive cache size: 846, Positive conditional cache size: 846, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 71 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): 909, Positive cache size: 846, Positive conditional cache size: 846, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, 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 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14642.8ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3030.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9418.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 67 SDtfs, 71 SDslu, 23 SDs, 0 SdLazy, 328 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 365.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 133.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=572occurred in iteration=7, InterpolantAutomatonStates: 40, 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: 24.2ms SsaConstructionTime, 200.3ms SatisfiabilityAnalysisTime, 543.5ms InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...