/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/safe020_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:16:51,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:16:51,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:16:51,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:16:51,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:16:51,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:16:51,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:16:51,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:16:51,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:16:51,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:16:51,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:16:51,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:16:51,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:16:51,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:16:51,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:16:51,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:16:51,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:16:51,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:16:51,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:16:51,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:16:51,349 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 00:16:51,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:16:51,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:16:51,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:16:51,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:16:51,381 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:16:51,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:16:51,381 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:16:51,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:16:51,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:16:51,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:16:51,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:16:51,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:16:51,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:16:51,383 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:16:51,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:16:51,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:16:51,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:16:51,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:16:51,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:16:51,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:16:51,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:16:51,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:16:51,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:16:51,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:16:51,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:16:51,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:16:51,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:16:51,386 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:16:51,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:16:51,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:16:51,387 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:16:51,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:16:51,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:16:51,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:16:51,861 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:16:51,862 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:16:51,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i [2021-04-29 00:16:51,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6004d13ab/fccce4a8096742c6b8db883476a168b1/FLAG204bfa329 [2021-04-29 00:16:52,738 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:16:52,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i [2021-04-29 00:16:52,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6004d13ab/fccce4a8096742c6b8db883476a168b1/FLAG204bfa329 [2021-04-29 00:16:53,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6004d13ab/fccce4a8096742c6b8db883476a168b1 [2021-04-29 00:16:53,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:16:53,071 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:16:53,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:16:53,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:16:53,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:16:53,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5cbb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53, skipping insertion in model container [2021-04-29 00:16:53,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:16:53,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:16:53,303 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/safe020_tso.opt.i[949,962] [2021-04-29 00:16:53,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:16:53,494 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:16:53,510 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i[949,962] [2021-04-29 00:16:53,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:16:53,661 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:16:53,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53 WrapperNode [2021-04-29 00:16:53,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:16:53,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:16:53,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:16:53,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:16:53,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:16:53,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:16:53,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:16:53,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:16:53,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (1/1) ... [2021-04-29 00:16:53,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:16:53,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:16:53,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:16:53,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:16:53,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (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 00:16:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:16:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:16:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:16:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:16:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:16:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:16:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:16:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:16:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:16:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:16:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:16:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:16:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:16:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:16:53,961 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 00:16:54,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:16:54,443 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:16:54,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:16:54 BoogieIcfgContainer [2021-04-29 00:16:54,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:16:54,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:16:54,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:16:54,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:16:54,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:16:53" (1/3) ... [2021-04-29 00:16:54,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d6d942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:16:54, skipping insertion in model container [2021-04-29 00:16:54,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:53" (2/3) ... [2021-04-29 00:16:54,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14d6d942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:16:54, skipping insertion in model container [2021-04-29 00:16:54,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:16:54" (3/3) ... [2021-04-29 00:16:54,456 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.opt.i [2021-04-29 00:16:54,466 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:16:54,476 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:16:54,477 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:16:54,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,513 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,514 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,514 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,514 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,514 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,514 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,520 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,520 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,520 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,534 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,535 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:54,537 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:16:54,569 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:16:54,597 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:16:54,597 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:16:54,597 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:16:54,597 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:16:54,597 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:16:54,598 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:16:54,598 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:16:54,598 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:16:54,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:16:54,661 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-04-29 00:16:54,662 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:16:54,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-04-29 00:16:54,667 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:16:54,672 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-04-29 00:16:54,674 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:54,693 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:16:54,697 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:16:54,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-04-29 00:16:54,718 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-29 00:16:54,718 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:16:54,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-04-29 00:16:54,722 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-29 00:16:59,295 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:17:00,152 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:17:00,604 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:17:00,789 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:17:00,969 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:17:01,131 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:17:01,311 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:17:01,494 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:17:01,659 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:17:01,833 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:17:02,008 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:17:02,192 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:17:02,378 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:17:02,555 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:17:02,739 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:17:03,001 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:17:03,247 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:17:03,489 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:17:03,716 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:17:04,031 INFO L158 LiptonReduction]: Checked pairs total: 6237 [2021-04-29 00:17:04,032 INFO L160 LiptonReduction]: Total number of compositions: 94 [2021-04-29 00:17:04,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9363 [2021-04-29 00:17:04,057 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-29 00:17:04,057 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:17:04,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:04,058 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:04,059 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:04,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:04,065 INFO L82 PathProgramCache]: Analyzing trace with hash 300360819, now seen corresponding path program 1 times [2021-04-29 00:17:04,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:04,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168647995] [2021-04-29 00:17:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:04,345 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:17:04,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:17:04,361 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 00:17:04,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168647995] [2021-04-29 00:17:04,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:04,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:17:04,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713399594] [2021-04-29 00:17:04,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:17:04,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:04,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:17:04,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:17:04,394 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-29 00:17:04,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 69 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 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 00:17:04,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:04,399 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-29 00:17:04,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:04,538 INFO L129 PetriNetUnfolder]: 84/344 cut-off events. [2021-04-29 00:17:04,539 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:17:04,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 344 events. 84/344 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2561 event pairs, 43 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 492. Up to 127 conditions per place. [2021-04-29 00:17:04,543 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 4 selfloop transitions, 5 changer transitions 38/77 dead transitions. [2021-04-29 00:17:04,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 77 transitions, 227 flow [2021-04-29 00:17:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:17:04,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:17:04,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2021-04-29 00:17:04,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7145708582834331 [2021-04-29 00:17:04,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2021-04-29 00:17:04,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2021-04-29 00:17:04,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:04,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2021-04-29 00:17:04,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 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 00:17:04,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 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 00:17:04,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 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 00:17:04,584 INFO L185 Difference]: Start difference. First operand has 79 places, 69 transitions, 147 flow. Second operand 3 states and 358 transitions. [2021-04-29 00:17:04,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 77 transitions, 227 flow [2021-04-29 00:17:04,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 77 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:17:04,591 INFO L241 Difference]: Finished difference. Result has 79 places, 39 transitions, 107 flow [2021-04-29 00:17:04,593 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=79, PETRI_TRANSITIONS=39} [2021-04-29 00:17:04,595 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2021-04-29 00:17:04,595 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:04,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 39 transitions, 107 flow [2021-04-29 00:17:04,595 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 39 transitions, 107 flow [2021-04-29 00:17:04,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 39 transitions, 107 flow [2021-04-29 00:17:04,607 INFO L129 PetriNetUnfolder]: 11/86 cut-off events. [2021-04-29 00:17:04,607 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:17:04,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 86 events. 11/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 410 event pairs, 7 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 125. Up to 26 conditions per place. [2021-04-29 00:17:04,610 INFO L146 LiptonReduction]: Number of co-enabled transitions 794 [2021-04-29 00:17:04,622 INFO L158 LiptonReduction]: Checked pairs total: 200 [2021-04-29 00:17:04,622 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:04,623 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-04-29 00:17:04,625 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 107 flow [2021-04-29 00:17:04,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 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 00:17:04,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:04,626 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:04,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:17:04,626 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:04,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:04,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1508629814, now seen corresponding path program 1 times [2021-04-29 00:17:04,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:04,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250492624] [2021-04-29 00:17:04,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:04,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:04,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:04,703 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 00:17:04,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250492624] [2021-04-29 00:17:04,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:04,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:17:04,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567688858] [2021-04-29 00:17:04,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:17:04,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:04,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:17:04,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:17:04,708 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 167 [2021-04-29 00:17:04,709 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 107 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 00:17:04,709 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:04,709 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 167 [2021-04-29 00:17:04,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:04,725 INFO L129 PetriNetUnfolder]: 8/78 cut-off events. [2021-04-29 00:17:04,725 INFO L130 PetriNetUnfolder]: For 13/16 co-relation queries the response was YES. [2021-04-29 00:17:04,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 78 events. 8/78 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 357 event pairs, 4 based on Foata normal form. 1/46 useless extension candidates. Maximal degree in co-relation 120. Up to 21 conditions per place. [2021-04-29 00:17:04,728 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 1 selfloop transitions, 3 changer transitions 1/39 dead transitions. [2021-04-29 00:17:04,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 115 flow [2021-04-29 00:17:04,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:17:04,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:17:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2021-04-29 00:17:04,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7445109780439122 [2021-04-29 00:17:04,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2021-04-29 00:17:04,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2021-04-29 00:17:04,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:04,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2021-04-29 00:17:04,762 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 00:17:04,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 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 00:17:04,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 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 00:17:04,766 INFO L185 Difference]: Start difference. First operand has 46 places, 39 transitions, 107 flow. Second operand 3 states and 373 transitions. [2021-04-29 00:17:04,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 115 flow [2021-04-29 00:17:04,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:17:04,768 INFO L241 Difference]: Finished difference. Result has 48 places, 38 transitions, 111 flow [2021-04-29 00:17:04,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2021-04-29 00:17:04,769 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -31 predicate places. [2021-04-29 00:17:04,769 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:04,770 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 38 transitions, 111 flow [2021-04-29 00:17:04,770 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 38 transitions, 111 flow [2021-04-29 00:17:04,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 111 flow [2021-04-29 00:17:04,780 INFO L129 PetriNetUnfolder]: 8/83 cut-off events. [2021-04-29 00:17:04,781 INFO L130 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2021-04-29 00:17:04,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 83 events. 8/83 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 406 event pairs, 4 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 122. Up to 21 conditions per place. [2021-04-29 00:17:04,784 INFO L146 LiptonReduction]: Number of co-enabled transitions 746 [2021-04-29 00:17:04,795 INFO L158 LiptonReduction]: Checked pairs total: 193 [2021-04-29 00:17:04,795 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:04,795 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-29 00:17:04,797 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 111 flow [2021-04-29 00:17:04,798 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 00:17:04,798 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:04,798 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:04,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:17:04,798 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:04,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:04,799 INFO L82 PathProgramCache]: Analyzing trace with hash 721249491, now seen corresponding path program 1 times [2021-04-29 00:17:04,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:04,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184333104] [2021-04-29 00:17:04,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:04,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:04,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:04,860 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 00:17:04,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184333104] [2021-04-29 00:17:04,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:04,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:17:04,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632728690] [2021-04-29 00:17:04,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:17:04,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:04,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:17:04,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:17:04,864 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 167 [2021-04-29 00:17:04,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 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 00:17:04,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:04,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 167 [2021-04-29 00:17:04,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:04,887 INFO L129 PetriNetUnfolder]: 6/70 cut-off events. [2021-04-29 00:17:04,887 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-04-29 00:17:04,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 70 events. 6/70 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 297 event pairs, 3 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 116. Up to 18 conditions per place. [2021-04-29 00:17:04,889 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 3 selfloop transitions, 4 changer transitions 1/40 dead transitions. [2021-04-29 00:17:04,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 133 flow [2021-04-29 00:17:04,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:17:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:17:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2021-04-29 00:17:04,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7864271457085829 [2021-04-29 00:17:04,892 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2021-04-29 00:17:04,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2021-04-29 00:17:04,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:04,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2021-04-29 00:17:04,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 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 00:17:04,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 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 00:17:04,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 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 00:17:04,897 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 111 flow. Second operand 3 states and 394 transitions. [2021-04-29 00:17:04,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 133 flow [2021-04-29 00:17:04,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:17:04,900 INFO L241 Difference]: Finished difference. Result has 48 places, 39 transitions, 129 flow [2021-04-29 00:17:04,900 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2021-04-29 00:17:04,900 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -31 predicate places. [2021-04-29 00:17:04,901 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:04,901 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 39 transitions, 129 flow [2021-04-29 00:17:04,901 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 39 transitions, 129 flow [2021-04-29 00:17:04,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 39 transitions, 129 flow [2021-04-29 00:17:04,911 INFO L129 PetriNetUnfolder]: 6/75 cut-off events. [2021-04-29 00:17:04,911 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-04-29 00:17:04,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 75 events. 6/75 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 338 event pairs, 2 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 121. Up to 18 conditions per place. [2021-04-29 00:17:04,914 INFO L146 LiptonReduction]: Number of co-enabled transitions 760 [2021-04-29 00:17:04,923 INFO L158 LiptonReduction]: Checked pairs total: 200 [2021-04-29 00:17:04,923 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:04,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:17:04,925 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 129 flow [2021-04-29 00:17:04,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 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 00:17:04,926 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:04,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:04,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:17:04,926 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:04,927 INFO L82 PathProgramCache]: Analyzing trace with hash 883887786, now seen corresponding path program 1 times [2021-04-29 00:17:04,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:04,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726309583] [2021-04-29 00:17:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:04,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:04,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:04,996 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:17:04,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:17:05,005 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 00:17:05,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726309583] [2021-04-29 00:17:05,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:05,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:17:05,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116581757] [2021-04-29 00:17:05,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:17:05,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:05,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:17:05,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:17:05,009 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 167 [2021-04-29 00:17:05,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 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 00:17:05,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:05,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 167 [2021-04-29 00:17:05,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:05,069 INFO L129 PetriNetUnfolder]: 33/156 cut-off events. [2021-04-29 00:17:05,070 INFO L130 PetriNetUnfolder]: For 71/102 co-relation queries the response was YES. [2021-04-29 00:17:05,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 156 events. 33/156 cut-off events. For 71/102 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 853 event pairs, 1 based on Foata normal form. 12/112 useless extension candidates. Maximal degree in co-relation 333. Up to 38 conditions per place. [2021-04-29 00:17:05,072 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 11 selfloop transitions, 18 changer transitions 0/56 dead transitions. [2021-04-29 00:17:05,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 56 transitions, 282 flow [2021-04-29 00:17:05,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:17:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:17:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-04-29 00:17:05,075 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6491017964071857 [2021-04-29 00:17:05,075 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-04-29 00:17:05,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-04-29 00:17:05,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:05,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-04-29 00:17:05,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 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 00:17:05,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:17:05,081 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:17:05,081 INFO L185 Difference]: Start difference. First operand has 47 places, 39 transitions, 129 flow. Second operand 5 states and 542 transitions. [2021-04-29 00:17:05,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 56 transitions, 282 flow [2021-04-29 00:17:05,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:17:05,086 INFO L241 Difference]: Finished difference. Result has 54 places, 52 transitions, 283 flow [2021-04-29 00:17:05,086 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=283, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2021-04-29 00:17:05,086 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -25 predicate places. [2021-04-29 00:17:05,086 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:05,087 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 52 transitions, 283 flow [2021-04-29 00:17:05,087 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 52 transitions, 283 flow [2021-04-29 00:17:05,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 52 transitions, 283 flow [2021-04-29 00:17:05,107 INFO L129 PetriNetUnfolder]: 24/144 cut-off events. [2021-04-29 00:17:05,107 INFO L130 PetriNetUnfolder]: For 105/119 co-relation queries the response was YES. [2021-04-29 00:17:05,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 144 events. 24/144 cut-off events. For 105/119 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 830 event pairs, 4 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 357. Up to 39 conditions per place. [2021-04-29 00:17:05,112 INFO L146 LiptonReduction]: Number of co-enabled transitions 1138 [2021-04-29 00:17:05,120 INFO L158 LiptonReduction]: Checked pairs total: 33 [2021-04-29 00:17:05,120 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:05,121 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-29 00:17:05,122 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 283 flow [2021-04-29 00:17:05,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 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 00:17:05,123 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:05,123 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:05,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:17:05,124 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:05,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:05,124 INFO L82 PathProgramCache]: Analyzing trace with hash 882965226, now seen corresponding path program 2 times [2021-04-29 00:17:05,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:05,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93429285] [2021-04-29 00:17:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:05,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:05,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:05,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:05,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:05,173 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:17:05,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:17:05,181 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 00:17:05,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93429285] [2021-04-29 00:17:05,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:05,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:17:05,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158107618] [2021-04-29 00:17:05,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:17:05,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:05,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:17:05,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:17:05,188 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 167 [2021-04-29 00:17:05,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 283 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:17:05,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:05,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 167 [2021-04-29 00:17:05,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:05,240 INFO L129 PetriNetUnfolder]: 23/159 cut-off events. [2021-04-29 00:17:05,240 INFO L130 PetriNetUnfolder]: For 276/335 co-relation queries the response was YES. [2021-04-29 00:17:05,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 159 events. 23/159 cut-off events. For 276/335 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 995 event pairs, 1 based on Foata normal form. 14/109 useless extension candidates. Maximal degree in co-relation 427. Up to 35 conditions per place. [2021-04-29 00:17:05,242 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 7 selfloop transitions, 9 changer transitions 17/59 dead transitions. [2021-04-29 00:17:05,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 409 flow [2021-04-29 00:17:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:17:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:17:05,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2021-04-29 00:17:05,245 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.644311377245509 [2021-04-29 00:17:05,245 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2021-04-29 00:17:05,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2021-04-29 00:17:05,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:05,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2021-04-29 00:17:05,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 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 00:17:05,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:17:05,251 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:17:05,251 INFO L185 Difference]: Start difference. First operand has 54 places, 52 transitions, 283 flow. Second operand 5 states and 538 transitions. [2021-04-29 00:17:05,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 409 flow [2021-04-29 00:17:05,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 407 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-29 00:17:05,257 INFO L241 Difference]: Finished difference. Result has 60 places, 40 transitions, 212 flow [2021-04-29 00:17:05,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2021-04-29 00:17:05,257 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -19 predicate places. [2021-04-29 00:17:05,258 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:05,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 40 transitions, 212 flow [2021-04-29 00:17:05,258 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 40 transitions, 212 flow [2021-04-29 00:17:05,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 40 transitions, 212 flow [2021-04-29 00:17:05,268 INFO L129 PetriNetUnfolder]: 7/73 cut-off events. [2021-04-29 00:17:05,268 INFO L130 PetriNetUnfolder]: For 100/105 co-relation queries the response was YES. [2021-04-29 00:17:05,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 73 events. 7/73 cut-off events. For 100/105 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 323 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 191. Up to 19 conditions per place. [2021-04-29 00:17:05,270 INFO L146 LiptonReduction]: Number of co-enabled transitions 732 [2021-04-29 00:17:05,276 INFO L158 LiptonReduction]: Checked pairs total: 21 [2021-04-29 00:17:05,276 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:05,276 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-29 00:17:05,278 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 212 flow [2021-04-29 00:17:05,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:17:05,278 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:05,279 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:05,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:17:05,279 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:05,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:05,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1905649158, now seen corresponding path program 1 times [2021-04-29 00:17:05,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:05,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735512839] [2021-04-29 00:17:05,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:05,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:05,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:05,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:05,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:17:05,352 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 00:17:05,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735512839] [2021-04-29 00:17:05,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:05,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:17:05,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228068503] [2021-04-29 00:17:05,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:17:05,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:05,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:17:05,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:17:05,355 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:17:05,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 212 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 00:17:05,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:05,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:17:05,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:06,301 INFO L129 PetriNetUnfolder]: 4618/7364 cut-off events. [2021-04-29 00:17:06,302 INFO L130 PetriNetUnfolder]: For 5544/6163 co-relation queries the response was YES. [2021-04-29 00:17:06,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15585 conditions, 7364 events. 4618/7364 cut-off events. For 5544/6163 co-relation queries the response was YES. Maximal size of possible extension queue 1551. Compared 58648 event pairs, 2131 based on Foata normal form. 99/2015 useless extension candidates. Maximal degree in co-relation 15563. Up to 4834 conditions per place. [2021-04-29 00:17:06,356 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 29 selfloop transitions, 27 changer transitions 0/75 dead transitions. [2021-04-29 00:17:06,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 75 transitions, 394 flow [2021-04-29 00:17:06,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:17:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:17:06,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-04-29 00:17:06,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6838323353293413 [2021-04-29 00:17:06,360 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-04-29 00:17:06,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-04-29 00:17:06,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:06,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-04-29 00:17:06,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 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 00:17:06,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:17:06,366 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:17:06,367 INFO L185 Difference]: Start difference. First operand has 59 places, 40 transitions, 212 flow. Second operand 5 states and 571 transitions. [2021-04-29 00:17:06,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 75 transitions, 394 flow [2021-04-29 00:17:06,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 333 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-04-29 00:17:06,374 INFO L241 Difference]: Finished difference. Result has 57 places, 65 transitions, 354 flow [2021-04-29 00:17:06,374 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=57, PETRI_TRANSITIONS=65} [2021-04-29 00:17:06,375 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -22 predicate places. [2021-04-29 00:17:06,375 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:06,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 65 transitions, 354 flow [2021-04-29 00:17:06,375 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 65 transitions, 354 flow [2021-04-29 00:17:06,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 65 transitions, 354 flow [2021-04-29 00:17:07,144 INFO L129 PetriNetUnfolder]: 4020/6549 cut-off events. [2021-04-29 00:17:07,144 INFO L130 PetriNetUnfolder]: For 2181/4722 co-relation queries the response was YES. [2021-04-29 00:17:07,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18714 conditions, 6549 events. 4020/6549 cut-off events. For 2181/4722 co-relation queries the response was YES. Maximal size of possible extension queue 1431. Compared 54481 event pairs, 1980 based on Foata normal form. 2/1815 useless extension candidates. Maximal degree in co-relation 18698. Up to 6197 conditions per place. [2021-04-29 00:17:07,246 INFO L146 LiptonReduction]: Number of co-enabled transitions 876 [2021-04-29 00:17:07,265 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:17:07,265 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:07,266 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 891 [2021-04-29 00:17:07,272 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 65 transitions, 354 flow [2021-04-29 00:17:07,273 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 00:17:07,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:07,273 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:07,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:17:07,273 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:07,274 INFO L82 PathProgramCache]: Analyzing trace with hash -2127930386, now seen corresponding path program 1 times [2021-04-29 00:17:07,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:07,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730999352] [2021-04-29 00:17:07,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:07,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:07,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:07,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:07,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:07,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:07,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:17:07,372 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 00:17:07,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730999352] [2021-04-29 00:17:07,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:07,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:17:07,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786919859] [2021-04-29 00:17:07,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:17:07,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:07,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:17:07,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:17:07,380 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:17:07,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 65 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 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 00:17:07,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:07,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:17:07,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:08,518 INFO L129 PetriNetUnfolder]: 4390/7784 cut-off events. [2021-04-29 00:17:08,518 INFO L130 PetriNetUnfolder]: For 4305/15150 co-relation queries the response was YES. [2021-04-29 00:17:08,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29714 conditions, 7784 events. 4390/7784 cut-off events. For 4305/15150 co-relation queries the response was YES. Maximal size of possible extension queue 2061. Compared 71606 event pairs, 460 based on Foata normal form. 144/2532 useless extension candidates. Maximal degree in co-relation 29696. Up to 7202 conditions per place. [2021-04-29 00:17:08,572 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 21 selfloop transitions, 52 changer transitions 9/101 dead transitions. [2021-04-29 00:17:08,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 101 transitions, 713 flow [2021-04-29 00:17:08,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:17:08,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:17:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2021-04-29 00:17:08,576 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6852010265183918 [2021-04-29 00:17:08,577 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2021-04-29 00:17:08,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2021-04-29 00:17:08,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:08,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2021-04-29 00:17:08,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 0 states have call successors, (0), 0 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 00:17:08,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 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 00:17:08,584 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 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 00:17:08,584 INFO L185 Difference]: Start difference. First operand has 57 places, 65 transitions, 354 flow. Second operand 7 states and 801 transitions. [2021-04-29 00:17:08,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 101 transitions, 713 flow [2021-04-29 00:17:08,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 101 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:17:08,623 INFO L241 Difference]: Finished difference. Result has 66 places, 90 transitions, 693 flow [2021-04-29 00:17:08,623 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=693, PETRI_PLACES=66, PETRI_TRANSITIONS=90} [2021-04-29 00:17:08,624 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -13 predicate places. [2021-04-29 00:17:08,624 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:08,624 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 90 transitions, 693 flow [2021-04-29 00:17:08,624 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 90 transitions, 693 flow [2021-04-29 00:17:08,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 90 transitions, 693 flow [2021-04-29 00:17:09,240 INFO L129 PetriNetUnfolder]: 2602/5199 cut-off events. [2021-04-29 00:17:09,240 INFO L130 PetriNetUnfolder]: For 8637/19689 co-relation queries the response was YES. [2021-04-29 00:17:09,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21930 conditions, 5199 events. 2602/5199 cut-off events. For 8637/19689 co-relation queries the response was YES. Maximal size of possible extension queue 1374. Compared 51997 event pairs, 459 based on Foata normal form. 6/1448 useless extension candidates. Maximal degree in co-relation 21909. Up to 4766 conditions per place. [2021-04-29 00:17:09,315 INFO L146 LiptonReduction]: Number of co-enabled transitions 1022 [2021-04-29 00:17:09,338 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:17:09,339 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:09,339 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 715 [2021-04-29 00:17:09,340 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 90 transitions, 693 flow [2021-04-29 00:17:09,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 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 00:17:09,341 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:09,341 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:09,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:17:09,341 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:09,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:09,342 INFO L82 PathProgramCache]: Analyzing trace with hash -606371153, now seen corresponding path program 1 times [2021-04-29 00:17:09,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:09,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461097733] [2021-04-29 00:17:09,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:09,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:09,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:17:09,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:09,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:09,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:09,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:09,380 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 00:17:09,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461097733] [2021-04-29 00:17:09,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:09,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:17:09,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673713083] [2021-04-29 00:17:09,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:17:09,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:09,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:17:09,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:17:09,383 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 167 [2021-04-29 00:17:09,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 90 transitions, 693 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 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 00:17:09,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:09,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 167 [2021-04-29 00:17:09,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:10,265 INFO L129 PetriNetUnfolder]: 3628/7200 cut-off events. [2021-04-29 00:17:10,265 INFO L130 PetriNetUnfolder]: For 13914/27814 co-relation queries the response was YES. [2021-04-29 00:17:10,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30027 conditions, 7200 events. 3628/7200 cut-off events. For 13914/27814 co-relation queries the response was YES. Maximal size of possible extension queue 2046. Compared 73323 event pairs, 648 based on Foata normal form. 80/2016 useless extension candidates. Maximal degree in co-relation 30004. Up to 6692 conditions per place. [2021-04-29 00:17:10,297 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 5 selfloop transitions, 3 changer transitions 47/92 dead transitions. [2021-04-29 00:17:10,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 723 flow [2021-04-29 00:17:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:17:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:17:10,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2021-04-29 00:17:10,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.688622754491018 [2021-04-29 00:17:10,300 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 460 transitions. [2021-04-29 00:17:10,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 460 transitions. [2021-04-29 00:17:10,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:10,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 460 transitions. [2021-04-29 00:17:10,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 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 00:17:10,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 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 00:17:10,304 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 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 00:17:10,304 INFO L185 Difference]: Start difference. First operand has 66 places, 90 transitions, 693 flow. Second operand 4 states and 460 transitions. [2021-04-29 00:17:10,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 723 flow [2021-04-29 00:17:10,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 92 transitions, 594 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-29 00:17:10,656 INFO L241 Difference]: Finished difference. Result has 68 places, 45 transitions, 276 flow [2021-04-29 00:17:10,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2021-04-29 00:17:10,657 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -11 predicate places. [2021-04-29 00:17:10,657 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:10,657 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 45 transitions, 276 flow [2021-04-29 00:17:10,657 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 45 transitions, 276 flow [2021-04-29 00:17:10,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 45 transitions, 276 flow [2021-04-29 00:17:10,734 INFO L129 PetriNetUnfolder]: 343/851 cut-off events. [2021-04-29 00:17:10,735 INFO L130 PetriNetUnfolder]: For 1306/1448 co-relation queries the response was YES. [2021-04-29 00:17:10,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3075 conditions, 851 events. 343/851 cut-off events. For 1306/1448 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 6989 event pairs, 82 based on Foata normal form. 2/404 useless extension candidates. Maximal degree in co-relation 3053. Up to 592 conditions per place. [2021-04-29 00:17:10,749 INFO L146 LiptonReduction]: Number of co-enabled transitions 414 [2021-04-29 00:17:10,755 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:17:10,756 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:10,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-04-29 00:17:10,757 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 276 flow [2021-04-29 00:17:10,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 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 00:17:10,758 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:17:10,758 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:17:10,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:17:10,758 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:17:10,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:17:10,759 INFO L82 PathProgramCache]: Analyzing trace with hash 983933328, now seen corresponding path program 1 times [2021-04-29 00:17:10,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:17:10,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952278081] [2021-04-29 00:17:10,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:17:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:17:10,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:10,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:10,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:10,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:10,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:10,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:17:10,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:17:10,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:17:10,814 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 00:17:10,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952278081] [2021-04-29 00:17:10,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:17:10,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:17:10,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708123470] [2021-04-29 00:17:10,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:17:10,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:17:10,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:17:10,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:17:10,818 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:17:10,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 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 00:17:10,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:17:10,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:17:10,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:17:11,053 INFO L129 PetriNetUnfolder]: 655/1367 cut-off events. [2021-04-29 00:17:11,053 INFO L130 PetriNetUnfolder]: For 1561/2921 co-relation queries the response was YES. [2021-04-29 00:17:11,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5523 conditions, 1367 events. 655/1367 cut-off events. For 1561/2921 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 10903 event pairs, 1 based on Foata normal form. 44/705 useless extension candidates. Maximal degree in co-relation 5507. Up to 883 conditions per place. [2021-04-29 00:17:11,061 INFO L132 encePairwiseOnDemand]: 155/167 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2021-04-29 00:17:11,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 392 flow [2021-04-29 00:17:11,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:17:11,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:17:11,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 759 transitions. [2021-04-29 00:17:11,065 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.649272882805817 [2021-04-29 00:17:11,065 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 759 transitions. [2021-04-29 00:17:11,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 759 transitions. [2021-04-29 00:17:11,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:17:11,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 759 transitions. [2021-04-29 00:17:11,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 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 00:17:11,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 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 00:17:11,071 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 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 00:17:11,071 INFO L185 Difference]: Start difference. First operand has 56 places, 45 transitions, 276 flow. Second operand 7 states and 759 transitions. [2021-04-29 00:17:11,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 392 flow [2021-04-29 00:17:11,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 356 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-04-29 00:17:11,076 INFO L241 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2021-04-29 00:17:11,076 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2021-04-29 00:17:11,076 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -23 predicate places. [2021-04-29 00:17:11,077 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:17:11,077 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 0 transitions, 0 flow [2021-04-29 00:17:11,077 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 0 transitions, 0 flow [2021-04-29 00:17:11,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:17:11,077 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:17:11,078 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:17:11,078 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 00:17:11,078 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:17:11,078 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:17:11,078 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:17:11,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-29 00:17:11,079 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:17:11,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 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 00:17:11,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:17:11,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:17:11 BasicIcfg [2021-04-29 00:17:11,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:17:11,086 INFO L168 Benchmark]: Toolchain (without parser) took 18060.81 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 277.5 MB in the beginning and 245.5 MB in the end (delta: 32.0 MB). Peak memory consumption was 256.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:17:11,086 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:17:11,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.96 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 243.6 MB in the end (delta: 30.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:17:11,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.49 ms. Allocated memory is still 302.0 MB. Free memory was 243.6 MB in the beginning and 283.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2021-04-29 00:17:11,087 INFO L168 Benchmark]: Boogie Preprocessor took 60.49 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 282.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:17:11,088 INFO L168 Benchmark]: RCFGBuilder took 598.42 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 260.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:17:11,088 INFO L168 Benchmark]: TraceAbstraction took 16637.33 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 259.4 MB in the beginning and 245.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 239.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:17:11,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 588.96 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 243.6 MB in the end (delta: 30.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 116.49 ms. Allocated memory is still 302.0 MB. Free memory was 243.6 MB in the beginning and 283.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.49 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 282.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 598.42 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 260.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 16637.33 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 259.4 MB in the beginning and 245.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 239.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9334.5ms, 67 PlacesBefore, 79 PlacesAfterwards, 58 TransitionsBefore, 69 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 94 TotalNumberOfCompositions, 6237 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2177, positive: 1983, positive conditional: 1983, positive unconditional: 0, negative: 194, negative conditional: 194, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 991, positive: 926, positive conditional: 0, positive unconditional: 926, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 991, positive: 926, positive conditional: 0, positive unconditional: 926, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 991, positive: 901, positive conditional: 0, positive unconditional: 901, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 90, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 462, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 332, negative conditional: 0, negative unconditional: 332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2177, positive: 1057, positive conditional: 1057, positive unconditional: 0, negative: 129, negative conditional: 129, negative unconditional: 0, unknown: 991, unknown conditional: 991, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 972, Positive cache size: 907, Positive conditional cache size: 907, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.1ms, 79 PlacesBefore, 46 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 33, positive conditional: 33, 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: 9, positive: 8, positive conditional: 4, positive unconditional: 4, 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: 9, positive: 8, positive conditional: 4, positive unconditional: 4, 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: 9, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 40, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 981, Positive cache size: 915, Positive conditional cache size: 915, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.3ms, 48 PlacesBefore, 47 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 746 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 193 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 27, positive conditional: 27, 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: 8, positive: 7, positive conditional: 3, positive unconditional: 4, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 3, positive unconditional: 4, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 989, Positive cache size: 922, Positive conditional cache size: 922, Positive unconditional cache size: 0, Negative cache size: 67, Negative conditional cache size: 67, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.9ms, 48 PlacesBefore, 47 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 760 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 9, positive unconditional: 7, 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: 17, positive: 16, positive conditional: 9, positive unconditional: 7, 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: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 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: 50, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1006, Positive cache size: 938, Positive conditional cache size: 938, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.5ms, 54 PlacesBefore, 54 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 1138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 33 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): 1006, Positive cache size: 938, Positive conditional cache size: 938, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.9ms, 60 PlacesBefore, 59 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 21 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 890.1ms, 57 PlacesBefore, 57 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 876 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 714.2ms, 66 PlacesBefore, 66 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 1022 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 98.4ms, 68 PlacesBefore, 56 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 414 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 56 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, 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, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 16489.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4262.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9446.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 64 SDslu, 25 SDs, 0 SdLazy, 308 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 309.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 113.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred in iteration=7, InterpolantAutomatonStates: 42, 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: 29.0ms SsaConstructionTime, 184.8ms SatisfiabilityAnalysisTime, 485.2ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...