/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-nondet/nondet-array-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 01:57:30,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 01:57:30,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 01:57:30,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 01:57:30,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 01:57:30,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 01:57:30,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 01:57:30,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 01:57:30,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 01:57:30,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 01:57:30,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 01:57:30,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 01:57:30,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 01:57:30,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 01:57:30,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 01:57:30,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 01:57:30,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 01:57:30,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 01:57:30,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 01:57:30,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 01:57:30,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 01:57:30,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 01:57:30,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 01:57:30,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 01:57:30,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 01:57:30,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 01:57:30,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 01:57:30,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 01:57:30,372 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 01:57:30,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 01:57:30,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 01:57:30,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 01:57:30,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 01:57:30,411 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 01:57:30,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 01:57:30,412 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 01:57:30,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 01:57:30,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 01:57:30,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 01:57:30,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 01:57:30,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 01:57:30,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 01:57:30,414 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 01:57:30,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 01:57:30,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 01:57:30,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 01:57:30,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 01:57:30,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 01:57:30,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 01:57:30,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 01:57:30,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 01:57:30,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 01:57:30,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 01:57:30,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 01:57:30,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 01:57:30,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 01:57:30,417 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 01:57:30,417 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 01:57:30,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 01:57:30,417 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 01:57:30,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 01:57:31,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 01:57:31,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 01:57:31,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 01:57:31,008 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 01:57:31,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-2.i [2021-04-29 01:57:31,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5d34c78/24dc49a890c3410e91648d72473bebe9/FLAG0e764cf31 [2021-04-29 01:57:32,067 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 01:57:32,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-2.i [2021-04-29 01:57:32,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5d34c78/24dc49a890c3410e91648d72473bebe9/FLAG0e764cf31 [2021-04-29 01:57:32,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5d34c78/24dc49a890c3410e91648d72473bebe9 [2021-04-29 01:57:32,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 01:57:32,343 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 01:57:32,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 01:57:32,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 01:57:32,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 01:57:32,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 01:57:32" (1/1) ... [2021-04-29 01:57:32,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13bf1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:32, skipping insertion in model container [2021-04-29 01:57:32,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 01:57:32" (1/1) ... [2021-04-29 01:57:32,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 01:57:32,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 01:57:33,125 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-nondet/nondet-array-2.i[30035,30048] [2021-04-29 01:57:33,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 01:57:33,217 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 01:57:33,322 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-nondet/nondet-array-2.i[30035,30048] [2021-04-29 01:57:33,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 01:57:33,575 INFO L208 MainTranslator]: Completed translation [2021-04-29 01:57:33,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33 WrapperNode [2021-04-29 01:57:33,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 01:57:33,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 01:57:33,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 01:57:33,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 01:57:33,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 01:57:33,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 01:57:33,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 01:57:33,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 01:57:33,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (1/1) ... [2021-04-29 01:57:33,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 01:57:33,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 01:57:33,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 01:57:33,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 01:57:33,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (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 01:57:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-04-29 01:57:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-29 01:57:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 01:57:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-04-29 01:57:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-04-29 01:57:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 01:57:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 01:57:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 01:57:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 01:57:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 01:57:33,979 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 01:57:34,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 01:57:34,723 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-04-29 01:57:34,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 01:57:34 BoogieIcfgContainer [2021-04-29 01:57:34,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 01:57:34,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 01:57:34,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 01:57:34,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 01:57:34,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 01:57:32" (1/3) ... [2021-04-29 01:57:34,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c837eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 01:57:34, skipping insertion in model container [2021-04-29 01:57:34,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:57:33" (2/3) ... [2021-04-29 01:57:34,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c837eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 01:57:34, skipping insertion in model container [2021-04-29 01:57:34,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 01:57:34" (3/3) ... [2021-04-29 01:57:34,741 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-array-2.i [2021-04-29 01:57:34,750 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 01:57:34,755 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 01:57:34,756 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 01:57:34,795 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,795 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,796 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,796 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,796 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,797 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,797 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,797 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,798 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,798 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,798 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,798 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,799 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,799 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,803 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,803 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,804 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,804 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,804 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:57:34,815 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-04-29 01:57:34,849 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 01:57:34,887 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 01:57:34,888 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 01:57:34,888 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 01:57:34,888 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 01:57:34,889 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 01:57:34,889 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 01:57:34,889 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 01:57:34,889 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 01:57:34,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 76 transitions, 160 flow [2021-04-29 01:57:34,980 INFO L129 PetriNetUnfolder]: 12/109 cut-off events. [2021-04-29 01:57:34,981 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:57:34,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 109 events. 12/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 224 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 60. Up to 4 conditions per place. [2021-04-29 01:57:34,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 76 transitions, 160 flow [2021-04-29 01:57:34,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 68 transitions, 144 flow [2021-04-29 01:57:34,998 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:57:35,024 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 68 transitions, 144 flow [2021-04-29 01:57:35,031 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 68 transitions, 144 flow [2021-04-29 01:57:35,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 68 transitions, 144 flow [2021-04-29 01:57:35,061 INFO L129 PetriNetUnfolder]: 10/93 cut-off events. [2021-04-29 01:57:35,061 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:57:35,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 93 events. 10/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 155 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 52. Up to 4 conditions per place. [2021-04-29 01:57:35,066 INFO L146 LiptonReduction]: Number of co-enabled transitions 300 [2021-04-29 01:57:42,452 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:57:42,709 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:57:42,940 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 01:57:43,180 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 01:57:43,380 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 01:57:43,548 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 01:57:43,759 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:57:44,010 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:57:44,261 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 01:57:44,506 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 01:57:44,801 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 01:57:45,075 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 01:57:45,381 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 01:57:45,736 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 01:57:47,365 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:57:47,523 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:57:47,882 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:57:48,031 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:57:48,141 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:57:48,344 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:57:48,448 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:57:48,956 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:57:49,069 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:57:49,192 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:57:49,296 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:57:49,744 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:57:50,174 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:57:50,372 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:57:52,147 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 01:57:52,637 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:57:53,231 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:57:53,375 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:57:53,739 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:57:53,883 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:57:54,324 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:57:54,509 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:57:54,978 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:57:55,157 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:57:55,598 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:57:55,780 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:57:56,247 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:57:56,430 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:57:56,550 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:57:56,661 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:57:56,786 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:57:56,896 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:57:57,315 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:57:57,484 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:57:57,884 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:57:58,057 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:57:58,567 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:57:58,745 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:57:59,197 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:57:59,408 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:57:59,822 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:57:59,991 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:58:00,403 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:58:00,577 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:58:01,074 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-29 01:58:01,277 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-29 01:58:01,770 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-29 01:58:01,974 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-29 01:58:02,464 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 01:58:02,659 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 01:58:03,157 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 01:58:03,347 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 01:58:03,856 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 01:58:04,055 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:58:04,511 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 01:58:04,712 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:58:05,164 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:58:05,352 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:58:05,863 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:58:06,054 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:58:06,534 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:58:06,785 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:58:07,350 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:58:07,562 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:58:08,044 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:58:08,235 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:58:08,749 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:58:09,009 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:58:09,063 INFO L158 LiptonReduction]: Checked pairs total: 538 [2021-04-29 01:58:09,063 INFO L160 LiptonReduction]: Total number of compositions: 154 [2021-04-29 01:58:09,070 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34075 [2021-04-29 01:58:09,096 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-29 01:58:09,097 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:58:09,097 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:58:09,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 01:58:09,099 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:58:09,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:58:09,112 INFO L82 PathProgramCache]: Analyzing trace with hash 11367431, now seen corresponding path program 1 times [2021-04-29 01:58:09,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:58:09,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461411558] [2021-04-29 01:58:09,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:58:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:58:09,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:09,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:58:09,447 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-04-29 01:58:09,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:58:09,461 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 01:58:09,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461411558] [2021-04-29 01:58:09,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:58:09,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 01:58:09,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193610309] [2021-04-29 01:58:09,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 01:58:09,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:58:09,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 01:58:09,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 01:58:09,524 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 230 [2021-04-29 01:58:09,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 01:58:09,532 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:58:09,532 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 230 [2021-04-29 01:58:09,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:58:09,765 INFO L129 PetriNetUnfolder]: 13/134 cut-off events. [2021-04-29 01:58:09,766 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:58:09,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 134 events. 13/134 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 792 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 118. Up to 54 conditions per place. [2021-04-29 01:58:09,769 INFO L132 encePairwiseOnDemand]: 219/230 looper letters, 3 selfloop transitions, 2 changer transitions 71/90 dead transitions. [2021-04-29 01:58:09,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 270 flow [2021-04-29 01:58:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 01:58:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 01:58:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2021-04-29 01:58:09,798 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7086956521739131 [2021-04-29 01:58:09,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2021-04-29 01:58:09,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2021-04-29 01:58:09,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:58:09,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2021-04-29 01:58:09,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 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 01:58:09,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 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 01:58:09,829 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 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 01:58:09,834 INFO L185 Difference]: Start difference. First operand has 82 places, 81 transitions, 170 flow. Second operand 3 states and 489 transitions. [2021-04-29 01:58:09,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 270 flow [2021-04-29 01:58:09,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 90 transitions, 270 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 01:58:09,848 INFO L241 Difference]: Finished difference. Result has 84 places, 19 transitions, 56 flow [2021-04-29 01:58:09,852 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=84, PETRI_TRANSITIONS=19} [2021-04-29 01:58:09,854 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2021-04-29 01:58:09,855 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:58:09,855 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 19 transitions, 56 flow [2021-04-29 01:58:09,856 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 19 transitions, 56 flow [2021-04-29 01:58:09,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 19 transitions, 56 flow [2021-04-29 01:58:09,862 INFO L129 PetriNetUnfolder]: 3/26 cut-off events. [2021-04-29 01:58:09,863 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 01:58:09,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 68 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 22. Up to 7 conditions per place. [2021-04-29 01:58:09,864 INFO L146 LiptonReduction]: Number of co-enabled transitions 108 [2021-04-29 01:58:09,870 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 01:58:09,871 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:58:09,871 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 01:58:09,873 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 56 flow [2021-04-29 01:58:09,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 01:58:09,875 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:58:09,875 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 01:58:09,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 01:58:09,876 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:58:09,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:58:09,877 INFO L82 PathProgramCache]: Analyzing trace with hash 352390836, now seen corresponding path program 1 times [2021-04-29 01:58:09,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:58:09,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540980037] [2021-04-29 01:58:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:58:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:58:09,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:09,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:58:09,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:09,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:58:09,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:09,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 01:58:09,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:09,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:58:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 01:58:09,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540980037] [2021-04-29 01:58:09,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:58:09,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 01:58:09,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526673896] [2021-04-29 01:58:09,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 01:58:09,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:58:09,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 01:58:09,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 01:58:10,001 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 230 [2021-04-29 01:58:10,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 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 01:58:10,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:58:10,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 230 [2021-04-29 01:58:10,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:58:10,094 INFO L129 PetriNetUnfolder]: 1/24 cut-off events. [2021-04-29 01:58:10,094 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 01:58:10,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 24 events. 1/24 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 30 event pairs, 0 based on Foata normal form. 3/19 useless extension candidates. Maximal degree in co-relation 17. Up to 9 conditions per place. [2021-04-29 01:58:10,095 INFO L132 encePairwiseOnDemand]: 223/230 looper letters, 5 selfloop transitions, 6 changer transitions 5/24 dead transitions. [2021-04-29 01:58:10,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 24 transitions, 104 flow [2021-04-29 01:58:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 01:58:10,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 01:58:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2021-04-29 01:58:10,100 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4282608695652174 [2021-04-29 01:58:10,101 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 394 transitions. [2021-04-29 01:58:10,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 394 transitions. [2021-04-29 01:58:10,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:58:10,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 394 transitions. [2021-04-29 01:58:10,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.5) internal successors, (394), 4 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 01:58:10,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 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 01:58:10,110 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 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 01:58:10,110 INFO L185 Difference]: Start difference. First operand has 22 places, 19 transitions, 56 flow. Second operand 4 states and 394 transitions. [2021-04-29 01:58:10,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 24 transitions, 104 flow [2021-04-29 01:58:10,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 98 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 01:58:10,113 INFO L241 Difference]: Finished difference. Result has 25 places, 19 transitions, 66 flow [2021-04-29 01:58:10,114 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2021-04-29 01:58:10,115 INFO L343 CegarLoopForPetriNet]: 82 programPoint places, -57 predicate places. [2021-04-29 01:58:10,115 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:58:10,115 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 19 transitions, 66 flow [2021-04-29 01:58:10,116 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 19 transitions, 66 flow [2021-04-29 01:58:10,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 66 flow [2021-04-29 01:58:10,122 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-04-29 01:58:10,122 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:58:10,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 21 events. 1/21 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 34 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 19. Up to 4 conditions per place. [2021-04-29 01:58:10,123 INFO L146 LiptonReduction]: Number of co-enabled transitions 60 [2021-04-29 01:58:10,125 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 01:58:10,126 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:58:10,126 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-04-29 01:58:10,128 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 66 flow [2021-04-29 01:58:10,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 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 01:58:10,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:58:10,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 01:58:10,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 01:58:10,129 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:58:10,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:58:10,130 INFO L82 PathProgramCache]: Analyzing trace with hash 352889645, now seen corresponding path program 1 times [2021-04-29 01:58:10,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:58:10,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597928828] [2021-04-29 01:58:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:58:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:58:10,184 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:58:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:58:10,220 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:58:10,261 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 01:58:10,261 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 01:58:10,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 01:58:10,263 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 01:58:10,264 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-04-29 01:58:10,274 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,274 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,274 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,274 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,275 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,275 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,275 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,275 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,275 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,276 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,276 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,276 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,276 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,277 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,277 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,277 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,277 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,277 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,278 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,278 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,278 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,278 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,278 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,278 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,279 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,279 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,279 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,279 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,280 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,280 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,280 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,281 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,281 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,283 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,284 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,284 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,284 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,285 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:10,288 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-04-29 01:58:10,289 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 01:58:10,291 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 01:58:10,291 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 01:58:10,291 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 01:58:10,291 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 01:58:10,292 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 01:58:10,292 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 01:58:10,292 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 01:58:10,292 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 01:58:10,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 83 transitions, 184 flow [2021-04-29 01:58:10,323 INFO L129 PetriNetUnfolder]: 23/191 cut-off events. [2021-04-29 01:58:10,323 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 01:58:10,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 191 events. 23/191 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 504 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2021-04-29 01:58:10,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 83 transitions, 184 flow [2021-04-29 01:58:10,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 75 transitions, 168 flow [2021-04-29 01:58:10,326 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:58:10,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 75 transitions, 168 flow [2021-04-29 01:58:10,327 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 75 transitions, 168 flow [2021-04-29 01:58:10,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 75 transitions, 168 flow [2021-04-29 01:58:10,350 INFO L129 PetriNetUnfolder]: 19/159 cut-off events. [2021-04-29 01:58:10,350 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 01:58:10,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 159 events. 19/159 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 357 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 95. Up to 8 conditions per place. [2021-04-29 01:58:10,353 INFO L146 LiptonReduction]: Number of co-enabled transitions 760 [2021-04-29 01:58:17,818 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 01:58:17,927 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:58:18,170 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 01:58:18,283 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:58:18,489 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 01:58:18,741 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 01:58:19,024 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 01:58:19,303 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 01:58:19,601 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 01:58:19,907 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 01:58:20,123 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 01:58:20,310 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 01:58:20,570 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:58:20,852 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:58:21,133 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:58:21,426 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:58:21,537 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 01:58:22,858 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:58:22,960 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:58:23,078 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:58:23,184 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:58:23,504 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:58:23,637 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:58:23,963 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:58:24,098 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:58:24,577 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:58:24,958 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:58:25,164 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:58:25,268 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:58:27,357 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 01:58:28,395 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:58:28,547 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:58:28,973 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:58:29,132 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:58:29,494 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:58:29,674 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:58:30,138 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:58:30,318 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:58:30,720 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:58:30,870 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:58:31,250 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:58:31,414 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:58:31,734 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:58:31,875 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:58:32,218 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:58:32,483 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:58:32,673 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:58:32,891 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:58:32,997 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:58:33,282 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:58:33,910 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:58:34,087 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:58:34,496 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:58:34,675 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:58:35,144 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-29 01:58:35,324 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-29 01:58:35,852 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-29 01:58:36,055 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-29 01:58:36,539 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:58:36,763 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:58:37,265 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:58:37,463 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:58:37,904 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 01:58:38,098 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 01:58:38,545 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 01:58:38,726 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 01:58:39,126 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:58:39,293 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:58:39,758 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:58:39,931 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:58:40,298 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:58:40,446 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:58:40,823 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:58:40,977 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:58:41,401 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:58:41,579 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:58:42,009 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:58:42,185 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:58:42,636 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 01:58:42,824 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:58:43,268 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 01:58:43,450 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:58:43,474 INFO L158 LiptonReduction]: Checked pairs total: 4341 [2021-04-29 01:58:43,474 INFO L160 LiptonReduction]: Total number of compositions: 150 [2021-04-29 01:58:43,475 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33149 [2021-04-29 01:58:43,484 INFO L129 PetriNetUnfolder]: 1/51 cut-off events. [2021-04-29 01:58:43,484 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:58:43,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:58:43,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 01:58:43,484 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:58:43,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:58:43,485 INFO L82 PathProgramCache]: Analyzing trace with hash 18765323, now seen corresponding path program 1 times [2021-04-29 01:58:43,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:58:43,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685977603] [2021-04-29 01:58:43,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:58:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:58:43,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:43,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:58:43,525 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-04-29 01:58:43,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:58:43,529 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 01:58:43,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685977603] [2021-04-29 01:58:43,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:58:43,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 01:58:43,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424762841] [2021-04-29 01:58:43,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 01:58:43,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:58:43,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 01:58:43,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 01:58:43,533 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 233 [2021-04-29 01:58:43,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 01:58:43,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:58:43,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 233 [2021-04-29 01:58:43,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:58:43,701 INFO L129 PetriNetUnfolder]: 27/229 cut-off events. [2021-04-29 01:58:43,701 INFO L130 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2021-04-29 01:58:43,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 229 events. 27/229 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1291 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 200. Up to 90 conditions per place. [2021-04-29 01:58:43,703 INFO L132 encePairwiseOnDemand]: 222/233 looper letters, 3 selfloop transitions, 2 changer transitions 71/96 dead transitions. [2021-04-29 01:58:43,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 96 transitions, 292 flow [2021-04-29 01:58:43,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 01:58:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 01:58:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2021-04-29 01:58:43,706 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7124463519313304 [2021-04-29 01:58:43,706 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2021-04-29 01:58:43,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2021-04-29 01:58:43,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:58:43,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2021-04-29 01:58:43,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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 01:58:43,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 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 01:58:43,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 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 01:58:43,712 INFO L185 Difference]: Start difference. First operand has 89 places, 87 transitions, 192 flow. Second operand 3 states and 498 transitions. [2021-04-29 01:58:43,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 96 transitions, 292 flow [2021-04-29 01:58:43,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 96 transitions, 292 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 01:58:43,715 INFO L241 Difference]: Finished difference. Result has 91 places, 25 transitions, 78 flow [2021-04-29 01:58:43,716 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=91, PETRI_TRANSITIONS=25} [2021-04-29 01:58:43,716 INFO L343 CegarLoopForPetriNet]: 89 programPoint places, 2 predicate places. [2021-04-29 01:58:43,716 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:58:43,716 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 25 transitions, 78 flow [2021-04-29 01:58:43,717 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 25 transitions, 78 flow [2021-04-29 01:58:43,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 78 flow [2021-04-29 01:58:43,722 INFO L129 PetriNetUnfolder]: 7/49 cut-off events. [2021-04-29 01:58:43,722 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-04-29 01:58:43,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 49 events. 7/49 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 111 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 44. Up to 13 conditions per place. [2021-04-29 01:58:43,723 INFO L146 LiptonReduction]: Number of co-enabled transitions 280 [2021-04-29 01:58:43,763 INFO L158 LiptonReduction]: Checked pairs total: 198 [2021-04-29 01:58:43,764 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:58:43,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-04-29 01:58:43,765 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 78 flow [2021-04-29 01:58:43,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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 01:58:43,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:58:43,766 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 01:58:43,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 01:58:43,766 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:58:43,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:58:43,767 INFO L82 PathProgramCache]: Analyzing trace with hash 581725788, now seen corresponding path program 1 times [2021-04-29 01:58:43,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:58:43,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358286158] [2021-04-29 01:58:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:58:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:58:43,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:43,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:58:43,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:43,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:58:43,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:43,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 01:58:43,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:58:43,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:58:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 01:58:43,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358286158] [2021-04-29 01:58:43,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:58:43,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 01:58:43,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140881650] [2021-04-29 01:58:43,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 01:58:43,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:58:43,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 01:58:43,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 01:58:43,830 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 233 [2021-04-29 01:58:43,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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 01:58:43,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:58:43,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 233 [2021-04-29 01:58:43,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:58:43,895 INFO L129 PetriNetUnfolder]: 5/51 cut-off events. [2021-04-29 01:58:43,895 INFO L130 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2021-04-29 01:58:43,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 51 events. 5/51 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 126 event pairs, 1 based on Foata normal form. 4/45 useless extension candidates. Maximal degree in co-relation 67. Up to 22 conditions per place. [2021-04-29 01:58:43,896 INFO L132 encePairwiseOnDemand]: 226/233 looper letters, 9 selfloop transitions, 6 changer transitions 3/32 dead transitions. [2021-04-29 01:58:43,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 134 flow [2021-04-29 01:58:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 01:58:43,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 01:58:43,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2021-04-29 01:58:43,899 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43776824034334766 [2021-04-29 01:58:43,899 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 408 transitions. [2021-04-29 01:58:43,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 408 transitions. [2021-04-29 01:58:43,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:58:43,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 408 transitions. [2021-04-29 01:58:43,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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 01:58:43,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 233.0) internal successors, (1165), 5 states have internal predecessors, (1165), 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 01:58:43,905 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 233.0) internal successors, (1165), 5 states have internal predecessors, (1165), 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 01:58:43,905 INFO L185 Difference]: Start difference. First operand has 29 places, 25 transitions, 78 flow. Second operand 4 states and 408 transitions. [2021-04-29 01:58:43,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 134 flow [2021-04-29 01:58:43,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 128 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 01:58:43,907 INFO L241 Difference]: Finished difference. Result has 33 places, 27 transitions, 102 flow [2021-04-29 01:58:43,907 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2021-04-29 01:58:43,908 INFO L343 CegarLoopForPetriNet]: 89 programPoint places, -56 predicate places. [2021-04-29 01:58:43,908 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:58:43,908 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 27 transitions, 102 flow [2021-04-29 01:58:43,908 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 27 transitions, 102 flow [2021-04-29 01:58:43,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 102 flow [2021-04-29 01:58:43,914 INFO L129 PetriNetUnfolder]: 5/47 cut-off events. [2021-04-29 01:58:43,914 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 01:58:43,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 47 events. 5/47 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 105 event pairs, 1 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 65. Up to 10 conditions per place. [2021-04-29 01:58:43,915 INFO L146 LiptonReduction]: Number of co-enabled transitions 290 [2021-04-29 01:58:43,918 INFO L158 LiptonReduction]: Checked pairs total: 204 [2021-04-29 01:58:43,919 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:58:43,919 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-04-29 01:58:43,920 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 27 transitions, 102 flow [2021-04-29 01:58:43,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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 01:58:43,921 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:58:43,921 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2021-04-29 01:58:43,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 01:58:43,921 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:58:43,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:58:43,922 INFO L82 PathProgramCache]: Analyzing trace with hash 6306884, now seen corresponding path program 1 times [2021-04-29 01:58:43,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:58:43,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796930522] [2021-04-29 01:58:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:58:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:58:43,945 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:58:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:58:43,967 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:58:43,974 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 01:58:43,975 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 01:58:43,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 01:58:43,975 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 01:58:43,976 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-04-29 01:58:43,985 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,985 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,986 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,986 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,986 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,986 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,986 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,986 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,986 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,987 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,987 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,987 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,987 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,987 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,987 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,987 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,988 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,988 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,988 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,988 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,988 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,988 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,988 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,989 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,989 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,989 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,989 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,989 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,989 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,990 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,990 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,990 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,990 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,990 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,990 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,990 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,990 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,991 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,991 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,991 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,991 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,991 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,992 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,992 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,992 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,992 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,992 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,994 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,994 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,994 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,994 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,995 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,996 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,996 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,996 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,996 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:43,997 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:58:44,000 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-04-29 01:58:44,000 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 01:58:44,002 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 01:58:44,002 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 01:58:44,002 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 01:58:44,002 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 01:58:44,002 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 01:58:44,002 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 01:58:44,002 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 01:58:44,003 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 01:58:44,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 90 transitions, 210 flow [2021-04-29 01:58:44,037 INFO L129 PetriNetUnfolder]: 45/342 cut-off events. [2021-04-29 01:58:44,038 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-04-29 01:58:44,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 342 events. 45/342 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1184 event pairs, 1 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 199. Up to 16 conditions per place. [2021-04-29 01:58:44,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 90 transitions, 210 flow [2021-04-29 01:58:44,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 82 transitions, 194 flow [2021-04-29 01:58:44,040 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:58:44,041 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 82 transitions, 194 flow [2021-04-29 01:58:44,041 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 82 transitions, 194 flow [2021-04-29 01:58:44,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 82 transitions, 194 flow [2021-04-29 01:58:44,067 INFO L129 PetriNetUnfolder]: 37/278 cut-off events. [2021-04-29 01:58:44,067 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-04-29 01:58:44,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 278 events. 37/278 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 801 event pairs, 1 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 167. Up to 16 conditions per place. [2021-04-29 01:58:44,071 INFO L146 LiptonReduction]: Number of co-enabled transitions 1260 [2021-04-29 01:58:50,481 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 01:58:50,757 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 01:58:50,859 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:58:51,044 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:58:51,336 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:58:51,447 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 01:58:51,610 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 01:58:51,829 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 01:58:52,129 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 01:58:52,238 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 01:58:52,499 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 01:58:52,602 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 01:58:52,853 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:58:52,962 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 01:58:53,207 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:58:53,312 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 01:58:53,606 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 01:58:53,727 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:58:54,004 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 01:58:54,129 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:58:54,365 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 01:58:54,691 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 01:58:56,576 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:58:56,733 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:58:56,907 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:58:57,057 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:58:57,180 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:58:57,287 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:58:57,462 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:58:57,597 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:58:57,778 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:58:57,916 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:58:58,043 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:58:58,160 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:58:58,310 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:58:58,449 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:58:58,611 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:58:58,744 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:58:58,915 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:58:59,050 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:58:59,208 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:58:59,340 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:58:59,896 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:59:00,115 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:59:00,681 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:59:00,903 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:59:01,074 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:01,223 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:59:01,381 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:01,523 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:59:03,143 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 01:59:03,384 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 01:59:03,508 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:04,107 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 01:59:04,949 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:59:05,197 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:59:05,839 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:59:06,088 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:59:06,237 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:59:06,357 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:59:06,497 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:59:06,609 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:59:07,218 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:59:07,450 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:59:08,022 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:59:08,297 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:59:08,459 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:08,609 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:59:08,787 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:08,930 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:59:09,509 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:59:09,724 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:59:10,303 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:59:10,517 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:59:11,187 WARN L205 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:59:11,445 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:59:12,066 WARN L205 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:59:12,323 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:59:13,065 WARN L205 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:59:13,323 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:59:14,004 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:59:14,282 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:59:15,014 WARN L205 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 01:59:15,316 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:59:16,109 WARN L205 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 01:59:16,422 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:59:17,172 WARN L205 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-29 01:59:17,500 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-29 01:59:18,354 WARN L205 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-29 01:59:18,703 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-29 01:59:19,498 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 01:59:19,814 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 01:59:20,618 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 01:59:20,945 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 01:59:21,748 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:59:22,057 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:59:22,825 WARN L205 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:59:23,119 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:59:23,844 WARN L205 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:59:24,115 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:59:24,836 WARN L205 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:59:25,130 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:59:25,893 WARN L205 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:59:26,193 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:59:26,968 WARN L205 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 01:59:27,249 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:59:28,011 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:59:28,296 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:59:29,070 WARN L205 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 01:59:29,393 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:59:29,414 INFO L158 LiptonReduction]: Checked pairs total: 7243 [2021-04-29 01:59:29,414 INFO L160 LiptonReduction]: Total number of compositions: 152 [2021-04-29 01:59:29,416 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45376 [2021-04-29 01:59:29,429 INFO L129 PetriNetUnfolder]: 1/64 cut-off events. [2021-04-29 01:59:29,429 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:59:29,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:59:29,429 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 01:59:29,430 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:59:29,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:59:29,430 INFO L82 PathProgramCache]: Analyzing trace with hash 26426666, now seen corresponding path program 1 times [2021-04-29 01:59:29,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:59:29,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779382204] [2021-04-29 01:59:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:59:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:59:29,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:59:29,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:59:29,512 INFO L142 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-04-29 01:59:29,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:59:29,521 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 01:59:29,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779382204] [2021-04-29 01:59:29,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:59:29,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 01:59:29,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354594274] [2021-04-29 01:59:29,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 01:59:29,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:59:29,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 01:59:29,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 01:59:29,525 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 242 [2021-04-29 01:59:29,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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 01:59:29,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:59:29,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 242 [2021-04-29 01:59:29,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:59:29,796 INFO L129 PetriNetUnfolder]: 56/408 cut-off events. [2021-04-29 01:59:29,796 INFO L130 PetriNetUnfolder]: For 19/22 co-relation queries the response was YES. [2021-04-29 01:59:29,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 408 events. 56/408 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2342 event pairs, 1 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 350. Up to 162 conditions per place. [2021-04-29 01:59:29,800 INFO L132 encePairwiseOnDemand]: 231/242 looper letters, 3 selfloop transitions, 2 changer transitions 71/103 dead transitions. [2021-04-29 01:59:29,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 103 transitions, 318 flow [2021-04-29 01:59:29,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 01:59:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 01:59:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2021-04-29 01:59:29,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7231404958677686 [2021-04-29 01:59:29,806 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 525 transitions. [2021-04-29 01:59:29,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 525 transitions. [2021-04-29 01:59:29,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:59:29,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 525 transitions. [2021-04-29 01:59:29,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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 01:59:29,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 01:59:29,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 01:59:29,814 INFO L185 Difference]: Start difference. First operand has 97 places, 94 transitions, 218 flow. Second operand 3 states and 525 transitions. [2021-04-29 01:59:29,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 103 transitions, 318 flow [2021-04-29 01:59:29,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 103 transitions, 318 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 01:59:29,819 INFO L241 Difference]: Finished difference. Result has 99 places, 32 transitions, 104 flow [2021-04-29 01:59:29,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=99, PETRI_TRANSITIONS=32} [2021-04-29 01:59:29,820 INFO L343 CegarLoopForPetriNet]: 97 programPoint places, 2 predicate places. [2021-04-29 01:59:29,820 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:59:29,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 32 transitions, 104 flow [2021-04-29 01:59:29,821 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 32 transitions, 104 flow [2021-04-29 01:59:29,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 104 flow [2021-04-29 01:59:29,834 INFO L129 PetriNetUnfolder]: 16/90 cut-off events. [2021-04-29 01:59:29,835 INFO L130 PetriNetUnfolder]: For 27/28 co-relation queries the response was YES. [2021-04-29 01:59:29,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 90 events. 16/90 cut-off events. For 27/28 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 250 event pairs, 1 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 83. Up to 25 conditions per place. [2021-04-29 01:59:29,838 INFO L146 LiptonReduction]: Number of co-enabled transitions 540 [2021-04-29 01:59:29,946 INFO L158 LiptonReduction]: Checked pairs total: 414 [2021-04-29 01:59:29,947 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:59:29,947 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-04-29 01:59:29,949 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 104 flow [2021-04-29 01:59:29,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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 01:59:29,950 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:59:29,950 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 01:59:29,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 01:59:29,951 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:59:29,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:59:29,951 INFO L82 PathProgramCache]: Analyzing trace with hash 819227610, now seen corresponding path program 1 times [2021-04-29 01:59:29,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:59:29,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657787925] [2021-04-29 01:59:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:59:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:59:29,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:59:29,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:59:29,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:59:29,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:59:30,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:59:30,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 01:59:30,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:59:30,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:59:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 01:59:30,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657787925] [2021-04-29 01:59:30,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:59:30,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 01:59:30,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135487084] [2021-04-29 01:59:30,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 01:59:30,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:59:30,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 01:59:30,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 01:59:30,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 242 [2021-04-29 01:59:30,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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 01:59:30,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:59:30,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 242 [2021-04-29 01:59:30,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:59:30,178 INFO L129 PetriNetUnfolder]: 15/98 cut-off events. [2021-04-29 01:59:30,178 INFO L130 PetriNetUnfolder]: For 33/35 co-relation queries the response was YES. [2021-04-29 01:59:30,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 98 events. 15/98 cut-off events. For 33/35 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 310 event pairs, 4 based on Foata normal form. 5/86 useless extension candidates. Maximal degree in co-relation 126. Up to 46 conditions per place. [2021-04-29 01:59:30,180 INFO L132 encePairwiseOnDemand]: 235/242 looper letters, 9 selfloop transitions, 6 changer transitions 3/39 dead transitions. [2021-04-29 01:59:30,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 39 transitions, 160 flow [2021-04-29 01:59:30,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 01:59:30,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 01:59:30,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 444 transitions. [2021-04-29 01:59:30,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45867768595041325 [2021-04-29 01:59:30,186 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 444 transitions. [2021-04-29 01:59:30,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 444 transitions. [2021-04-29 01:59:30,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:59:30,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 444 transitions. [2021-04-29 01:59:30,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 01:59:30,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 01:59:30,194 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 01:59:30,194 INFO L185 Difference]: Start difference. First operand has 37 places, 32 transitions, 104 flow. Second operand 4 states and 444 transitions. [2021-04-29 01:59:30,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 39 transitions, 160 flow [2021-04-29 01:59:30,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 39 transitions, 154 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 01:59:30,199 INFO L241 Difference]: Finished difference. Result has 41 places, 34 transitions, 128 flow [2021-04-29 01:59:30,199 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2021-04-29 01:59:30,200 INFO L343 CegarLoopForPetriNet]: 97 programPoint places, -56 predicate places. [2021-04-29 01:59:30,200 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:59:30,200 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 34 transitions, 128 flow [2021-04-29 01:59:30,200 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 34 transitions, 128 flow [2021-04-29 01:59:30,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 34 transitions, 128 flow [2021-04-29 01:59:30,214 INFO L129 PetriNetUnfolder]: 15/93 cut-off events. [2021-04-29 01:59:30,215 INFO L130 PetriNetUnfolder]: For 23/25 co-relation queries the response was YES. [2021-04-29 01:59:30,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 93 events. 15/93 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 285 event pairs, 4 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 126. Up to 22 conditions per place. [2021-04-29 01:59:30,217 INFO L146 LiptonReduction]: Number of co-enabled transitions 580 [2021-04-29 01:59:30,341 INFO L158 LiptonReduction]: Checked pairs total: 438 [2021-04-29 01:59:30,341 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:59:30,341 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-04-29 01:59:30,342 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 128 flow [2021-04-29 01:59:30,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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 01:59:30,343 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:59:30,343 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2021-04-29 01:59:30,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 01:59:30,343 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:59:30,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:59:30,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1083956527, now seen corresponding path program 1 times [2021-04-29 01:59:30,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:59:30,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060744837] [2021-04-29 01:59:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:59:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:59:30,372 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:59:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:59:30,397 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:59:30,414 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 01:59:30,414 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 01:59:30,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 01:59:30,415 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 01:59:30,415 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-04-29 01:59:30,436 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,436 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,436 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,436 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,436 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,436 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,436 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,437 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,437 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,437 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,437 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,437 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,437 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,438 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,438 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,438 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,438 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,438 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,439 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,439 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,439 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,439 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,439 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,440 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,440 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,440 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,440 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,440 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,441 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,441 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,442 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,442 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,442 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,442 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,442 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,443 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,443 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,443 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,443 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,444 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,444 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,444 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,445 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,445 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,445 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,445 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,445 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,445 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,446 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,447 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,447 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,447 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,449 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,450 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,450 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,450 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,450 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,452 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,453 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,453 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,453 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,453 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,455 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,456 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,456 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,456 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,456 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:59:30,463 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-29 01:59:30,464 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 01:59:30,465 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 01:59:30,465 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 01:59:30,465 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 01:59:30,465 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 01:59:30,465 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 01:59:30,465 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 01:59:30,466 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 01:59:30,466 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 01:59:30,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 97 transitions, 238 flow [2021-04-29 01:59:30,567 INFO L129 PetriNetUnfolder]: 91/633 cut-off events. [2021-04-29 01:59:30,568 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-04-29 01:59:30,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 633 events. 91/633 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2889 event pairs, 6 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 362. Up to 32 conditions per place. [2021-04-29 01:59:30,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 97 transitions, 238 flow [2021-04-29 01:59:30,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 89 transitions, 222 flow [2021-04-29 01:59:30,576 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:59:30,577 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 89 transitions, 222 flow [2021-04-29 01:59:30,577 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 89 transitions, 222 flow [2021-04-29 01:59:30,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 89 transitions, 222 flow [2021-04-29 01:59:30,659 INFO L129 PetriNetUnfolder]: 75/505 cut-off events. [2021-04-29 01:59:30,660 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-04-29 01:59:30,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 505 events. 75/505 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1965 event pairs, 6 based on Foata normal form. 0/430 useless extension candidates. Maximal degree in co-relation 298. Up to 32 conditions per place. [2021-04-29 01:59:30,679 INFO L146 LiptonReduction]: Number of co-enabled transitions 1840 [2021-04-29 01:59:38,137 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-04-29 01:59:38,784 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-29 01:59:38,982 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-29 01:59:41,864 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:59:42,004 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 01:59:42,324 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:59:42,472 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 01:59:42,753 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 01:59:43,130 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 01:59:43,256 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-29 01:59:43,454 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 01:59:43,746 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 01:59:44,169 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 01:59:44,312 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:59:44,635 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 01:59:44,797 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:59:45,172 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 01:59:45,337 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:45,734 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 01:59:45,904 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:46,188 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 01:59:46,324 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 01:59:46,623 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 01:59:46,750 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 01:59:47,085 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:59:47,221 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 01:59:47,533 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 01:59:47,671 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 01:59:48,652 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 01:59:48,755 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 01:59:48,859 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 01:59:48,965 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 01:59:49,889 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:59:50,041 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:59:50,239 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:59:50,377 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:59:50,602 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:59:50,777 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:50,997 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:59:51,179 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:51,404 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:51,585 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:59:51,817 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:51,995 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:59:52,185 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:59:52,346 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:59:52,542 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 01:59:52,723 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 01:59:52,941 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:59:53,116 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:53,321 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:59:53,507 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:53,756 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:59:53,951 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:54,199 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:59:54,394 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:55,130 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:59:55,407 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:59:56,119 WARN L205 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 01:59:56,433 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 01:59:56,553 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 01:59:56,663 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 01:59:56,767 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 01:59:57,364 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 01:59:57,469 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 01:59:57,771 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 01:59:57,978 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 01:59:58,088 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 01:59:58,210 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:58,351 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:58,471 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:58,594 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 01:59:58,733 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 01:59:58,866 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 01:59:59,136 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 01:59:59,267 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:59:59,414 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 01:59:59,573 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 01:59:59,720 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 01:59:59,848 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 02:00:00,183 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:00,372 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:00:00,597 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:00,791 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:00:00,978 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:00:01,121 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:00:01,330 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:00:01,494 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:00:02,305 WARN L205 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:00:02,616 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:00:03,434 WARN L205 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:00:03,738 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:00:04,517 WARN L205 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:00:04,851 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:00:05,718 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:00:06,039 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:00:06,896 WARN L205 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:00:07,223 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:00:08,189 WARN L205 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:00:08,564 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:00:09,349 WARN L205 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 02:00:09,656 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:00:10,468 WARN L205 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 02:00:10,764 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:00:11,747 WARN L205 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 02:00:12,153 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 02:00:13,103 WARN L205 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 02:00:13,575 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 02:00:14,514 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:00:14,858 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:00:15,708 WARN L205 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:00:16,042 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:00:16,986 WARN L205 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 02:00:17,344 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 02:00:18,382 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 02:00:18,764 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 02:00:19,789 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:00:20,178 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:00:21,191 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:00:21,515 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:00:22,275 WARN L205 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:00:22,489 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:00:23,066 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:00:23,296 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:00:23,944 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-29 02:00:24,193 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-29 02:00:24,887 WARN L205 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-29 02:00:25,150 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-29 02:00:25,754 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:00:25,999 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:00:26,589 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:00:26,830 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:00:27,412 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:00:27,642 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:00:28,224 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:00:28,465 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:00:28,497 INFO L158 LiptonReduction]: Checked pairs total: 11134 [2021-04-29 02:00:28,497 INFO L160 LiptonReduction]: Total number of compositions: 154 [2021-04-29 02:00:28,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57922 [2021-04-29 02:00:28,508 INFO L129 PetriNetUnfolder]: 1/50 cut-off events. [2021-04-29 02:00:28,508 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 02:00:28,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:00:28,509 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 02:00:28,509 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:00:28,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:00:28,509 INFO L82 PathProgramCache]: Analyzing trace with hash 34460232, now seen corresponding path program 1 times [2021-04-29 02:00:28,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:00:28,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477095383] [2021-04-29 02:00:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:00:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:00:28,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:28,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:28,559 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-04-29 02:00:28,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:00:28,565 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 02:00:28,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477095383] [2021-04-29 02:00:28,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 02:00:28,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 02:00:28,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961940478] [2021-04-29 02:00:28,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 02:00:28,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:00:28,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 02:00:28,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 02:00:28,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 251 [2021-04-29 02:00:28,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 101 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 02:00:28,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:00:28,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 251 [2021-04-29 02:00:28,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:00:28,826 INFO L129 PetriNetUnfolder]: 117/755 cut-off events. [2021-04-29 02:00:28,827 INFO L130 PetriNetUnfolder]: For 48/52 co-relation queries the response was YES. [2021-04-29 02:00:28,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1212 conditions, 755 events. 117/755 cut-off events. For 48/52 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5114 event pairs, 6 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 637. Up to 306 conditions per place. [2021-04-29 02:00:28,831 INFO L132 encePairwiseOnDemand]: 240/251 looper letters, 3 selfloop transitions, 2 changer transitions 71/110 dead transitions. [2021-04-29 02:00:28,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 110 transitions, 346 flow [2021-04-29 02:00:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 02:00:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 02:00:28,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2021-04-29 02:00:28,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7330677290836654 [2021-04-29 02:00:28,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2021-04-29 02:00:28,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2021-04-29 02:00:28,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:00:28,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2021-04-29 02:00:28,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 02:00:28,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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 02:00:28,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 251.0) internal successors, (1004), 4 states have internal predecessors, (1004), 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 02:00:28,840 INFO L185 Difference]: Start difference. First operand has 105 places, 101 transitions, 246 flow. Second operand 3 states and 552 transitions. [2021-04-29 02:00:28,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 110 transitions, 346 flow [2021-04-29 02:00:28,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 110 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 02:00:28,844 INFO L241 Difference]: Finished difference. Result has 107 places, 39 transitions, 132 flow [2021-04-29 02:00:28,844 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=107, PETRI_TRANSITIONS=39} [2021-04-29 02:00:28,844 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2021-04-29 02:00:28,844 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:00:28,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 39 transitions, 132 flow [2021-04-29 02:00:28,845 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 39 transitions, 132 flow [2021-04-29 02:00:28,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 39 transitions, 132 flow [2021-04-29 02:00:28,861 INFO L129 PetriNetUnfolder]: 37/167 cut-off events. [2021-04-29 02:00:28,862 INFO L130 PetriNetUnfolder]: For 64/65 co-relation queries the response was YES. [2021-04-29 02:00:28,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 167 events. 37/167 cut-off events. For 64/65 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 593 event pairs, 6 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 158. Up to 49 conditions per place. [2021-04-29 02:00:28,865 INFO L146 LiptonReduction]: Number of co-enabled transitions 880 [2021-04-29 02:00:29,014 INFO L158 LiptonReduction]: Checked pairs total: 708 [2021-04-29 02:00:29,015 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 02:00:29,015 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-04-29 02:00:29,016 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 132 flow [2021-04-29 02:00:29,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 02:00:29,016 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:00:29,017 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 02:00:29,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 02:00:29,017 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:00:29,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:00:29,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1068268475, now seen corresponding path program 1 times [2021-04-29 02:00:29,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:00:29,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83185386] [2021-04-29 02:00:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:00:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:00:29,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:00:29,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:00:29,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:00:29,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 02:00:29,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83185386] [2021-04-29 02:00:29,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 02:00:29,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 02:00:29,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237542814] [2021-04-29 02:00:29,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 02:00:29,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:00:29,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 02:00:29,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 02:00:29,091 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 251 [2021-04-29 02:00:29,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 02:00:29,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:00:29,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 251 [2021-04-29 02:00:29,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:00:29,229 INFO L129 PetriNetUnfolder]: 38/183 cut-off events. [2021-04-29 02:00:29,230 INFO L130 PetriNetUnfolder]: For 74/78 co-relation queries the response was YES. [2021-04-29 02:00:29,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 183 events. 38/183 cut-off events. For 74/78 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 740 event pairs, 12 based on Foata normal form. 6/161 useless extension candidates. Maximal degree in co-relation 235. Up to 91 conditions per place. [2021-04-29 02:00:29,232 INFO L132 encePairwiseOnDemand]: 244/251 looper letters, 9 selfloop transitions, 6 changer transitions 3/46 dead transitions. [2021-04-29 02:00:29,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 46 transitions, 188 flow [2021-04-29 02:00:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 02:00:29,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 02:00:29,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 480 transitions. [2021-04-29 02:00:29,236 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47808764940239046 [2021-04-29 02:00:29,236 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 480 transitions. [2021-04-29 02:00:29,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 480 transitions. [2021-04-29 02:00:29,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:00:29,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 480 transitions. [2021-04-29 02:00:29,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 02:00:29,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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 02:00:29,242 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 251.0) internal successors, (1255), 5 states have internal predecessors, (1255), 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 02:00:29,242 INFO L185 Difference]: Start difference. First operand has 45 places, 39 transitions, 132 flow. Second operand 4 states and 480 transitions. [2021-04-29 02:00:29,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 46 transitions, 188 flow [2021-04-29 02:00:29,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 46 transitions, 182 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 02:00:29,245 INFO L241 Difference]: Finished difference. Result has 49 places, 41 transitions, 156 flow [2021-04-29 02:00:29,246 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2021-04-29 02:00:29,246 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -56 predicate places. [2021-04-29 02:00:29,246 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:00:29,246 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 41 transitions, 156 flow [2021-04-29 02:00:29,246 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 41 transitions, 156 flow [2021-04-29 02:00:29,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 41 transitions, 156 flow [2021-04-29 02:00:29,265 INFO L129 PetriNetUnfolder]: 38/177 cut-off events. [2021-04-29 02:00:29,266 INFO L130 PetriNetUnfolder]: For 59/61 co-relation queries the response was YES. [2021-04-29 02:00:29,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 177 events. 38/177 cut-off events. For 59/61 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 707 event pairs, 12 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 233. Up to 46 conditions per place. [2021-04-29 02:00:29,271 INFO L146 LiptonReduction]: Number of co-enabled transitions 930 [2021-04-29 02:00:29,336 INFO L158 LiptonReduction]: Checked pairs total: 738 [2021-04-29 02:00:29,336 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 02:00:29,336 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-04-29 02:00:29,337 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 156 flow [2021-04-29 02:00:29,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 02:00:29,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:00:29,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 02:00:29,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 02:00:29,338 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:00:29,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:00:29,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1578278831, now seen corresponding path program 1 times [2021-04-29 02:00:29,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:00:29,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046246541] [2021-04-29 02:00:29,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:00:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:00:29,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-29 02:00:29,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:00:29,418 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-04-29 02:00:29,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-29 02:00:29,444 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-04-29 02:00:29,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-29 02:00:29,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:00:29,504 INFO L142 QuantifierPusher]: treesize reduction 30, result has 57.1 percent of original size [2021-04-29 02:00:29,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-29 02:00:29,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-04-29 02:00:29,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:00:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 02:00:29,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046246541] [2021-04-29 02:00:29,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825909389] [2021-04-29 02:00:29,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-29 02:00:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:00:29,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2021-04-29 02:00:29,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-29 02:00:29,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-29 02:00:29,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:00:29,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:00:29,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:00:29,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:00:29,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:00:29,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:00:29,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:00:29,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:29,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:29,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:00:30,018 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-29 02:00:30,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:00:30,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:00:30,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:00:30,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:00:30,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:00:30,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:00:30,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:00:30,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-29 02:00:30,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:00:30,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:00:30,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-29 02:00:30,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-29 02:00:30,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3] total 10 [2021-04-29 02:00:30,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214362957] [2021-04-29 02:00:30,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-29 02:00:30,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:00:30,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-29 02:00:30,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-04-29 02:00:30,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 251 [2021-04-29 02:00:30,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 156 flow. Second operand has 11 states, 11 states have (on average 70.36363636363636) internal successors, (774), 11 states have internal predecessors, (774), 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 02:00:30,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:00:30,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 251 [2021-04-29 02:00:30,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:00:32,355 INFO L129 PetriNetUnfolder]: 2164/4242 cut-off events. [2021-04-29 02:00:32,355 INFO L130 PetriNetUnfolder]: For 1390/1390 co-relation queries the response was YES. [2021-04-29 02:00:32,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9453 conditions, 4242 events. 2164/4242 cut-off events. For 1390/1390 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 30610 event pairs, 300 based on Foata normal form. 5/3495 useless extension candidates. Maximal degree in co-relation 5740. Up to 2408 conditions per place. [2021-04-29 02:00:32,406 INFO L132 encePairwiseOnDemand]: 239/251 looper letters, 69 selfloop transitions, 46 changer transitions 0/135 dead transitions. [2021-04-29 02:00:32,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 135 transitions, 666 flow [2021-04-29 02:00:32,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-29 02:00:32,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-04-29 02:00:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1343 transitions. [2021-04-29 02:00:32,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2972554227534307 [2021-04-29 02:00:32,415 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1343 transitions. [2021-04-29 02:00:32,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1343 transitions. [2021-04-29 02:00:32,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:00:32,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1343 transitions. [2021-04-29 02:00:32,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 74.61111111111111) internal successors, (1343), 18 states have internal predecessors, (1343), 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 02:00:32,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 251.0) internal successors, (4769), 19 states have internal predecessors, (4769), 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 02:00:32,432 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 251.0) internal successors, (4769), 19 states have internal predecessors, (4769), 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 02:00:32,433 INFO L185 Difference]: Start difference. First operand has 48 places, 41 transitions, 156 flow. Second operand 18 states and 1343 transitions. [2021-04-29 02:00:32,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 135 transitions, 666 flow [2021-04-29 02:00:32,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 135 transitions, 642 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-04-29 02:00:32,453 INFO L241 Difference]: Finished difference. Result has 73 places, 89 transitions, 477 flow [2021-04-29 02:00:32,453 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=477, PETRI_PLACES=73, PETRI_TRANSITIONS=89} [2021-04-29 02:00:32,453 INFO L343 CegarLoopForPetriNet]: 105 programPoint places, -32 predicate places. [2021-04-29 02:00:32,453 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:00:32,454 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 89 transitions, 477 flow [2021-04-29 02:00:32,456 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 89 transitions, 477 flow [2021-04-29 02:00:32,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 89 transitions, 477 flow [2021-04-29 02:00:32,612 INFO L129 PetriNetUnfolder]: 393/1159 cut-off events. [2021-04-29 02:00:32,612 INFO L130 PetriNetUnfolder]: For 688/760 co-relation queries the response was YES. [2021-04-29 02:00:32,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2937 conditions, 1159 events. 393/1159 cut-off events. For 688/760 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8403 event pairs, 58 based on Foata normal form. 18/956 useless extension candidates. Maximal degree in co-relation 2362. Up to 241 conditions per place. [2021-04-29 02:00:32,644 INFO L146 LiptonReduction]: Number of co-enabled transitions 1626 [2021-04-29 02:00:32,676 INFO L158 LiptonReduction]: Checked pairs total: 2153 [2021-04-29 02:00:32,676 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 02:00:32,676 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 223 [2021-04-29 02:00:32,677 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 89 transitions, 477 flow [2021-04-29 02:00:32,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 70.36363636363636) internal successors, (774), 11 states have internal predecessors, (774), 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 02:00:32,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:00:32,680 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2021-04-29 02:00:32,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-04-29 02:00:32,895 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:00:32,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:00:32,896 INFO L82 PathProgramCache]: Analyzing trace with hash 414425601, now seen corresponding path program 1 times [2021-04-29 02:00:32,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:00:32,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592768075] [2021-04-29 02:00:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:00:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 02:00:32,928 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 02:00:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 02:00:32,952 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 02:00:32,969 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 02:00:32,970 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 02:00:32,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 02:00:32,971 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 02:00:32,971 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-04-29 02:00:32,995 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,996 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,997 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,997 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,997 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,997 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,997 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,997 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,997 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,997 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,998 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,998 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,998 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,998 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,998 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,998 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,998 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,998 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:32,999 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,000 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,000 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,000 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,000 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,000 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,000 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,000 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,001 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,002 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,002 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,002 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,002 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,002 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,002 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,002 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,002 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,003 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,003 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,003 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,003 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,003 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,003 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,003 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,003 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,004 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,004 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,004 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,005 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,005 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,005 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,005 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,007 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,007 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,007 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,007 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,007 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,009 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,009 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,010 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,010 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,010 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,012 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,012 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,012 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,012 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,012 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,014 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,015 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,015 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,015 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,015 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:00:33,022 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-04-29 02:00:33,023 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 02:00:33,024 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 02:00:33,024 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 02:00:33,024 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 02:00:33,024 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 02:00:33,024 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 02:00:33,025 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 02:00:33,025 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 02:00:33,025 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 02:00:33,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 104 transitions, 268 flow [2021-04-29 02:00:33,149 INFO L129 PetriNetUnfolder]: 189/1208 cut-off events. [2021-04-29 02:00:33,149 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2021-04-29 02:00:33,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 1208 events. 189/1208 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 7006 event pairs, 23 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 678. Up to 80 conditions per place. [2021-04-29 02:00:33,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 104 transitions, 268 flow [2021-04-29 02:00:33,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 96 transitions, 252 flow [2021-04-29 02:00:33,158 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:00:33,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 96 transitions, 252 flow [2021-04-29 02:00:33,159 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 96 transitions, 252 flow [2021-04-29 02:00:33,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 96 transitions, 252 flow [2021-04-29 02:00:33,255 INFO L129 PetriNetUnfolder]: 157/952 cut-off events. [2021-04-29 02:00:33,255 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2021-04-29 02:00:33,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1063 conditions, 952 events. 157/952 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4999 event pairs, 23 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 550. Up to 80 conditions per place. [2021-04-29 02:00:33,276 INFO L146 LiptonReduction]: Number of co-enabled transitions 2500 [2021-04-29 02:00:42,917 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 02:00:43,258 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-29 02:00:43,598 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 02:00:43,703 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 02:00:43,950 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 02:00:44,057 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 02:00:44,324 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 02:00:44,436 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:00:44,693 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-04-29 02:00:44,802 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:00:44,952 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 02:00:45,170 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 02:00:45,551 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 02:00:45,686 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:00:45,965 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 02:00:46,118 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:00:46,506 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 02:00:46,879 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-04-29 02:00:47,005 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 02:00:47,411 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 02:00:47,595 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:00:47,885 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-04-29 02:00:47,998 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:00:49,733 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:00:49,844 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:00:49,979 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:00:50,093 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:00:50,252 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 02:00:50,390 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:00:50,542 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 02:00:50,681 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:00:50,823 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:00:50,929 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:00:51,061 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:00:51,171 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:00:51,687 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 02:00:51,907 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:00:52,454 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 02:00:52,676 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:00:52,926 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 02:00:53,069 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:53,332 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 02:00:53,480 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:53,786 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:54,013 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:00:54,300 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:54,546 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:00:54,789 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 02:00:54,937 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:00:55,100 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 02:00:55,233 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:00:55,707 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 02:00:55,814 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 02:00:56,490 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 02:00:56,596 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 02:00:56,830 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 02:00:56,938 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:57,937 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:00:58,040 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:00:58,235 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:58,399 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:00:58,571 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:00:58,711 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:00:59,305 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:00:59,545 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:01:00,155 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:01:00,397 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:01:01,091 WARN L205 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:01:01,488 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:01:02,359 WARN L205 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:01:02,775 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:01:03,787 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:01:04,166 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:01:04,958 WARN L205 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:01:05,203 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:01:05,767 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 02:01:05,990 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:01:06,542 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-04-29 02:01:06,766 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:01:06,922 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:01:07,040 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:01:07,183 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:01:07,308 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:01:07,985 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 02:01:08,247 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 02:01:08,999 WARN L205 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-29 02:01:09,373 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 02:01:10,188 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 02:01:10,498 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 02:01:11,235 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-04-29 02:01:11,543 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 02:01:12,289 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:01:12,600 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:01:13,295 WARN L205 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:01:13,573 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:01:14,367 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-29 02:01:14,706 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-29 02:01:15,554 WARN L205 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-29 02:01:15,895 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-29 02:01:16,543 WARN L205 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:01:16,797 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:01:17,430 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 02:01:17,681 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:01:18,426 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:01:18,713 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:01:19,413 WARN L205 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:01:19,666 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:01:20,374 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:01:20,662 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:01:21,338 WARN L205 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:01:21,753 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:01:22,668 WARN L205 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:01:23,161 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:01:24,274 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:01:24,609 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:01:24,637 INFO L158 LiptonReduction]: Checked pairs total: 15556 [2021-04-29 02:01:24,638 INFO L160 LiptonReduction]: Total number of compositions: 156 [2021-04-29 02:01:24,638 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51480 [2021-04-29 02:01:24,647 INFO L129 PetriNetUnfolder]: 1/55 cut-off events. [2021-04-29 02:01:24,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 02:01:24,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:01:24,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 02:01:24,648 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:01:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:01:24,649 INFO L82 PathProgramCache]: Analyzing trace with hash 42651722, now seen corresponding path program 1 times [2021-04-29 02:01:24,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:01:24,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077405201] [2021-04-29 02:01:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:01:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:01:24,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:24,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:24,670 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-04-29 02:01:24,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:01:24,679 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 02:01:24,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077405201] [2021-04-29 02:01:24,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 02:01:24,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 02:01:24,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62099796] [2021-04-29 02:01:24,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 02:01:24,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:01:24,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 02:01:24,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 02:01:24,682 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 260 [2021-04-29 02:01:24,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 02:01:24,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:01:24,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 260 [2021-04-29 02:01:24,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:01:25,046 INFO L129 PetriNetUnfolder]: 246/1442 cut-off events. [2021-04-29 02:01:25,046 INFO L130 PetriNetUnfolder]: For 110/115 co-relation queries the response was YES. [2021-04-29 02:01:25,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 1442 events. 246/1442 cut-off events. For 110/115 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 11158 event pairs, 23 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 1201. Up to 594 conditions per place. [2021-04-29 02:01:25,054 INFO L132 encePairwiseOnDemand]: 249/260 looper letters, 3 selfloop transitions, 2 changer transitions 71/117 dead transitions. [2021-04-29 02:01:25,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 117 transitions, 376 flow [2021-04-29 02:01:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 02:01:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 02:01:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions. [2021-04-29 02:01:25,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7423076923076923 [2021-04-29 02:01:25,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions. [2021-04-29 02:01:25,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions. [2021-04-29 02:01:25,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:01:25,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions. [2021-04-29 02:01:25,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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 02:01:25,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 02:01:25,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 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 02:01:25,065 INFO L185 Difference]: Start difference. First operand has 113 places, 108 transitions, 276 flow. Second operand 3 states and 579 transitions. [2021-04-29 02:01:25,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 117 transitions, 376 flow [2021-04-29 02:01:25,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 117 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 02:01:25,068 INFO L241 Difference]: Finished difference. Result has 115 places, 46 transitions, 162 flow [2021-04-29 02:01:25,069 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=115, PETRI_TRANSITIONS=46} [2021-04-29 02:01:25,070 INFO L343 CegarLoopForPetriNet]: 113 programPoint places, 2 predicate places. [2021-04-29 02:01:25,070 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:01:25,071 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 46 transitions, 162 flow [2021-04-29 02:01:25,071 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 46 transitions, 162 flow [2021-04-29 02:01:25,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 46 transitions, 162 flow [2021-04-29 02:01:25,101 INFO L129 PetriNetUnfolder]: 86/320 cut-off events. [2021-04-29 02:01:25,101 INFO L130 PetriNetUnfolder]: For 142/143 co-relation queries the response was YES. [2021-04-29 02:01:25,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 320 events. 86/320 cut-off events. For 142/143 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1331 event pairs, 23 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 302. Up to 97 conditions per place. [2021-04-29 02:01:25,109 INFO L146 LiptonReduction]: Number of co-enabled transitions 1300 [2021-04-29 02:01:25,308 INFO L158 LiptonReduction]: Checked pairs total: 1080 [2021-04-29 02:01:25,309 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 02:01:25,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 239 [2021-04-29 02:01:25,310 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 162 flow [2021-04-29 02:01:25,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 02:01:25,310 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:01:25,311 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 02:01:25,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-29 02:01:25,311 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:01:25,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:01:25,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1322204839, now seen corresponding path program 1 times [2021-04-29 02:01:25,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:01:25,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696546596] [2021-04-29 02:01:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:01:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:01:25,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:01:25,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:01:25,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:01:25,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 02:01:25,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696546596] [2021-04-29 02:01:25,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 02:01:25,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 02:01:25,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710382948] [2021-04-29 02:01:25,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 02:01:25,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:01:25,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 02:01:25,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 02:01:25,399 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 260 [2021-04-29 02:01:25,401 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 02:01:25,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:01:25,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 260 [2021-04-29 02:01:25,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:01:25,535 INFO L129 PetriNetUnfolder]: 90/346 cut-off events. [2021-04-29 02:01:25,535 INFO L130 PetriNetUnfolder]: For 157/161 co-relation queries the response was YES. [2021-04-29 02:01:25,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 346 events. 90/346 cut-off events. For 157/161 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1590 event pairs, 33 based on Foata normal form. 7/306 useless extension candidates. Maximal degree in co-relation 447. Up to 177 conditions per place. [2021-04-29 02:01:25,539 INFO L132 encePairwiseOnDemand]: 253/260 looper letters, 9 selfloop transitions, 6 changer transitions 3/53 dead transitions. [2021-04-29 02:01:25,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 218 flow [2021-04-29 02:01:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 02:01:25,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 02:01:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2021-04-29 02:01:25,544 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49615384615384617 [2021-04-29 02:01:25,544 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2021-04-29 02:01:25,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2021-04-29 02:01:25,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:01:25,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2021-04-29 02:01:25,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 02:01:25,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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 02:01:25,549 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 260.0) internal successors, (1300), 5 states have internal predecessors, (1300), 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 02:01:25,549 INFO L185 Difference]: Start difference. First operand has 53 places, 46 transitions, 162 flow. Second operand 4 states and 516 transitions. [2021-04-29 02:01:25,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 218 flow [2021-04-29 02:01:25,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 212 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 02:01:25,552 INFO L241 Difference]: Finished difference. Result has 57 places, 48 transitions, 186 flow [2021-04-29 02:01:25,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=57, PETRI_TRANSITIONS=48} [2021-04-29 02:01:25,553 INFO L343 CegarLoopForPetriNet]: 113 programPoint places, -56 predicate places. [2021-04-29 02:01:25,554 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:01:25,554 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 48 transitions, 186 flow [2021-04-29 02:01:25,554 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 48 transitions, 186 flow [2021-04-29 02:01:25,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 48 transitions, 186 flow [2021-04-29 02:01:25,585 INFO L129 PetriNetUnfolder]: 90/339 cut-off events. [2021-04-29 02:01:25,585 INFO L130 PetriNetUnfolder]: For 136/136 co-relation queries the response was YES. [2021-04-29 02:01:25,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 339 events. 90/339 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1529 event pairs, 33 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 434. Up to 94 conditions per place. [2021-04-29 02:01:25,592 INFO L146 LiptonReduction]: Number of co-enabled transitions 1360 [2021-04-29 02:01:25,740 INFO L158 LiptonReduction]: Checked pairs total: 1116 [2021-04-29 02:01:25,740 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 02:01:25,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 186 [2021-04-29 02:01:25,742 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 186 flow [2021-04-29 02:01:25,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 02:01:25,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:01:25,742 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 02:01:25,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-29 02:01:25,743 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:01:25,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:01:25,743 INFO L82 PathProgramCache]: Analyzing trace with hash 553704484, now seen corresponding path program 1 times [2021-04-29 02:01:25,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:01:25,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491490685] [2021-04-29 02:01:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:01:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:01:25,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:01:25,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:01:25,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:01:25,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:01:25,833 INFO L142 QuantifierPusher]: treesize reduction 28, result has 34.9 percent of original size [2021-04-29 02:01:25,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:01:25,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:01:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-29 02:01:25,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491490685] [2021-04-29 02:01:25,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907947701] [2021-04-29 02:01:25,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-29 02:01:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:01:25,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2021-04-29 02:01:25,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-29 02:01:25,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-29 02:01:25,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:01:25,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:25,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:25,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:01:26,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:01:26,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:01:26,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:01:26,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:01:26,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:01:26,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:01:26,118 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-29 02:01:26,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:01:26,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:01:26,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:01:26,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:01:26,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:01:26,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:01:26,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:01:26,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-29 02:01:26,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:01:26,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:01:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-29 02:01:26,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-29 02:01:26,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 9 [2021-04-29 02:01:26,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671560956] [2021-04-29 02:01:26,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-29 02:01:26,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:01:26,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-29 02:01:26,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-04-29 02:01:26,204 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 260 [2021-04-29 02:01:26,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 186 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 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 02:01:26,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:01:26,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 260 [2021-04-29 02:01:26,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:02:35,626 INFO L129 PetriNetUnfolder]: 376756/497627 cut-off events. [2021-04-29 02:02:35,626 INFO L130 PetriNetUnfolder]: For 236250/236250 co-relation queries the response was YES. [2021-04-29 02:02:36,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1171160 conditions, 497627 events. 376756/497627 cut-off events. For 236250/236250 co-relation queries the response was YES. Maximal size of possible extension queue 10209. Compared 3430480 event pairs, 102472 based on Foata normal form. 5/385769 useless extension candidates. Maximal degree in co-relation 756710. Up to 158979 conditions per place. [2021-04-29 02:02:39,581 INFO L132 encePairwiseOnDemand]: 240/260 looper letters, 218 selfloop transitions, 74 changer transitions 0/306 dead transitions. [2021-04-29 02:02:39,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 306 transitions, 1431 flow [2021-04-29 02:02:39,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-29 02:02:39,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-04-29 02:02:39,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1616 transitions. [2021-04-29 02:02:39,590 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.295970695970696 [2021-04-29 02:02:39,590 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1616 transitions. [2021-04-29 02:02:39,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1616 transitions. [2021-04-29 02:02:39,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:02:39,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1616 transitions. [2021-04-29 02:02:39,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 76.95238095238095) internal successors, (1616), 21 states have internal predecessors, (1616), 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 02:02:39,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 260.0) internal successors, (5720), 22 states have internal predecessors, (5720), 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 02:02:39,607 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 260.0) internal successors, (5720), 22 states have internal predecessors, (5720), 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 02:02:39,608 INFO L185 Difference]: Start difference. First operand has 56 places, 48 transitions, 186 flow. Second operand 21 states and 1616 transitions. [2021-04-29 02:02:39,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 306 transitions, 1431 flow [2021-04-29 02:03:13,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 306 transitions, 1398 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-04-29 02:03:13,398 INFO L241 Difference]: Finished difference. Result has 87 places, 120 transitions, 759 flow [2021-04-29 02:03:13,398 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=759, PETRI_PLACES=87, PETRI_TRANSITIONS=120} [2021-04-29 02:03:13,398 INFO L343 CegarLoopForPetriNet]: 113 programPoint places, -26 predicate places. [2021-04-29 02:03:13,398 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:03:13,399 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 120 transitions, 759 flow [2021-04-29 02:03:13,399 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 120 transitions, 759 flow [2021-04-29 02:03:13,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 120 transitions, 759 flow [2021-04-29 02:03:19,009 INFO L129 PetriNetUnfolder]: 22043/46613 cut-off events. [2021-04-29 02:03:19,010 INFO L130 PetriNetUnfolder]: For 101192/110201 co-relation queries the response was YES. [2021-04-29 02:03:19,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183027 conditions, 46613 events. 22043/46613 cut-off events. For 101192/110201 co-relation queries the response was YES. Maximal size of possible extension queue 2931. Compared 544246 event pairs, 11651 based on Foata normal form. 233/33942 useless extension candidates. Maximal degree in co-relation 158725. Up to 19334 conditions per place. [2021-04-29 02:03:19,836 INFO L146 LiptonReduction]: Number of co-enabled transitions 2798 [2021-04-29 02:03:20,281 INFO L158 LiptonReduction]: Checked pairs total: 7132 [2021-04-29 02:03:20,282 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-29 02:03:20,282 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6884 [2021-04-29 02:03:20,286 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 121 transitions, 766 flow [2021-04-29 02:03:20,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 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 02:03:20,290 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:03:20,290 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 02:03:20,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-04-29 02:03:20,504 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:03:20,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:03:20,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1587510832, now seen corresponding path program 1 times [2021-04-29 02:03:20,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:03:20,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186976096] [2021-04-29 02:03:20,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:03:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:03:20,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 02:03:20,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:03:20,651 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-29 02:03:20,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186976096] [2021-04-29 02:03:20,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270224806] [2021-04-29 02:03:20,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-29 02:03:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:03:20,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2021-04-29 02:03:20,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-29 02:03:20,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:03:20,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:03:20,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:03:20,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:03:20,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:03:20,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:03:20,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:03:20,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-29 02:03:20,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:03:20,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:20,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:03:20,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:20,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:03:21,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-29 02:03:21,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:03:21,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:03:21,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-29 02:03:21,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:21,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:21,048 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-04-29 02:03:21,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:03:21,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:21,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-29 02:03:21,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:03:21,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:03:21,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:03:21,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-29 02:03:21,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 02:03:21,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:03:21,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:03:21,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:03:21,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:03:21,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:03:21,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:03:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-29 02:03:21,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-29 02:03:21,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-04-29 02:03:21,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681224008] [2021-04-29 02:03:21,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-29 02:03:21,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:03:21,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-29 02:03:21,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-04-29 02:03:21,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 262 [2021-04-29 02:03:21,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 121 transitions, 766 flow. Second operand has 10 states, 10 states have (on average 127.8) internal successors, (1278), 10 states have internal predecessors, (1278), 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 02:03:21,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:03:21,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 262 [2021-04-29 02:03:21,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:03:27,667 INFO L129 PetriNetUnfolder]: 20135/41522 cut-off events. [2021-04-29 02:03:27,668 INFO L130 PetriNetUnfolder]: For 126449/148236 co-relation queries the response was YES. [2021-04-29 02:03:27,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178410 conditions, 41522 events. 20135/41522 cut-off events. For 126449/148236 co-relation queries the response was YES. Maximal size of possible extension queue 2675. Compared 464580 event pairs, 11373 based on Foata normal form. 5207/34020 useless extension candidates. Maximal degree in co-relation 160706. Up to 19061 conditions per place. [2021-04-29 02:03:28,612 INFO L132 encePairwiseOnDemand]: 252/262 looper letters, 8 selfloop transitions, 32 changer transitions 1/127 dead transitions. [2021-04-29 02:03:28,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 127 transitions, 880 flow [2021-04-29 02:03:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 02:03:28,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 02:03:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2021-04-29 02:03:28,623 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.494910941475827 [2021-04-29 02:03:28,623 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2021-04-29 02:03:28,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2021-04-29 02:03:28,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:03:28,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2021-04-29 02:03:28,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 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 02:03:28,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 262.0) internal successors, (1834), 7 states have internal predecessors, (1834), 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 02:03:28,633 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 262.0) internal successors, (1834), 7 states have internal predecessors, (1834), 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 02:03:28,634 INFO L185 Difference]: Start difference. First operand has 88 places, 121 transitions, 766 flow. Second operand 6 states and 778 transitions. [2021-04-29 02:03:28,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 127 transitions, 880 flow [2021-04-29 02:03:30,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 862 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-04-29 02:03:30,114 INFO L241 Difference]: Finished difference. Result has 95 places, 124 transitions, 877 flow [2021-04-29 02:03:30,114 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=877, PETRI_PLACES=95, PETRI_TRANSITIONS=124} [2021-04-29 02:03:30,114 INFO L343 CegarLoopForPetriNet]: 113 programPoint places, -18 predicate places. [2021-04-29 02:03:30,115 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:03:30,115 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 124 transitions, 877 flow [2021-04-29 02:03:30,115 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 124 transitions, 877 flow [2021-04-29 02:03:30,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 124 transitions, 877 flow [2021-04-29 02:03:35,202 INFO L129 PetriNetUnfolder]: 19185/41450 cut-off events. [2021-04-29 02:03:35,203 INFO L130 PetriNetUnfolder]: For 126183/136674 co-relation queries the response was YES. [2021-04-29 02:03:35,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186464 conditions, 41450 events. 19185/41450 cut-off events. For 126183/136674 co-relation queries the response was YES. Maximal size of possible extension queue 2606. Compared 480113 event pairs, 11124 based on Foata normal form. 799/31438 useless extension candidates. Maximal degree in co-relation 166278. Up to 17526 conditions per place. [2021-04-29 02:03:35,894 INFO L146 LiptonReduction]: Number of co-enabled transitions 2956 [2021-04-29 02:03:36,332 INFO L158 LiptonReduction]: Checked pairs total: 3704 [2021-04-29 02:03:36,332 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 02:03:36,332 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6217 [2021-04-29 02:03:36,333 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 124 transitions, 877 flow [2021-04-29 02:03:36,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 127.8) internal successors, (1278), 10 states have internal predecessors, (1278), 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 02:03:36,334 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:03:36,334 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 02:03:36,545 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-04-29 02:03:36,546 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:03:36,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:03:36,547 INFO L82 PathProgramCache]: Analyzing trace with hash 190263926, now seen corresponding path program 1 times [2021-04-29 02:03:36,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:03:36,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088066418] [2021-04-29 02:03:36,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:03:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 02:03:36,584 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 02:03:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 02:03:36,614 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 02:03:36,631 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 02:03:36,631 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 02:03:36,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-29 02:03:36,631 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 02:03:36,632 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-04-29 02:03:36,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,652 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,652 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,653 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,653 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,653 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,653 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,653 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,653 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,654 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,654 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,654 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,654 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,654 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,654 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,654 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,655 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,655 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,655 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,655 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,655 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,655 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,655 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,655 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,656 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,657 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,657 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,657 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,657 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,657 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,657 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,658 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,658 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,658 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,658 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,658 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,658 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,658 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,658 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,659 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,659 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,659 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,659 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,659 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,659 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,659 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,659 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,661 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,661 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,661 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,662 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,662 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,662 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,662 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,663 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,663 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,663 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,663 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,663 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,663 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,663 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,664 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,664 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,664 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,664 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,664 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,664 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,665 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,665 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,667 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,667 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,667 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,667 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,667 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,669 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,670 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,670 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,670 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,670 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,672 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,673 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,673 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,673 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,673 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,676 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,676 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,676 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,676 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,676 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,678 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,679 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,679 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,679 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,679 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 02:03:36,691 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-04-29 02:03:36,691 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-04-29 02:03:36,692 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 02:03:36,693 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 02:03:36,693 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 02:03:36,693 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 02:03:36,693 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 02:03:36,693 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 02:03:36,693 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 02:03:36,693 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 02:03:36,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 111 transitions, 300 flow [2021-04-29 02:03:36,933 INFO L129 PetriNetUnfolder]: 399/2359 cut-off events. [2021-04-29 02:03:36,933 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2021-04-29 02:03:36,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 2359 events. 399/2359 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 16771 event pairs, 72 based on Foata normal form. 0/1960 useless extension candidates. Maximal degree in co-relation 1307. Up to 192 conditions per place. [2021-04-29 02:03:36,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 111 transitions, 300 flow [2021-04-29 02:03:36,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 103 transitions, 284 flow [2021-04-29 02:03:36,946 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:03:36,946 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 103 transitions, 284 flow [2021-04-29 02:03:36,946 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 103 transitions, 284 flow [2021-04-29 02:03:36,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 103 transitions, 284 flow [2021-04-29 02:03:37,116 INFO L129 PetriNetUnfolder]: 335/1847 cut-off events. [2021-04-29 02:03:37,117 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2021-04-29 02:03:37,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2079 conditions, 1847 events. 335/1847 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 12125 event pairs, 72 based on Foata normal form. 0/1576 useless extension candidates. Maximal degree in co-relation 1051. Up to 192 conditions per place. [2021-04-29 02:03:37,140 INFO L146 LiptonReduction]: Number of co-enabled transitions 3240 [2021-04-29 02:03:37,674 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-04-29 02:03:44,164 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-04-29 02:03:44,411 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-04-29 02:03:44,731 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-04-29 02:03:45,061 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-04-29 02:03:49,461 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-29 02:03:49,629 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-29 02:03:49,775 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-29 02:03:49,993 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-29 02:03:50,532 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-04-29 02:03:52,959 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:53,159 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:53,339 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:53,517 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:53,642 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:53,770 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:53,922 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:54,080 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:54,246 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:03:54,405 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:03:54,569 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:03:54,718 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:03:54,875 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:03:55,031 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:03:55,176 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:03:55,324 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:03:55,458 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:55,607 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:55,751 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:55,890 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:56,060 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:56,233 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:56,409 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:56,589 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:56,717 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:56,857 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:57,001 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:57,151 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 02:03:57,322 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:57,497 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:57,670 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:57,853 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-29 02:03:57,997 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 02:03:58,151 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 02:03:58,288 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 02:03:58,426 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-29 02:03:59,655 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-29 02:03:59,773 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-29 02:03:59,881 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-29 02:03:59,986 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-29 02:04:00,099 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:04:00,208 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-29 02:04:00,474 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-04-29 02:04:00,595 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-29 02:04:00,732 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-29 02:04:00,846 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-29 02:04:00,960 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-29 02:04:01,067 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-29 02:04:02,138 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 02:04:02,435 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:04:03,099 WARN L205 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 02:04:03,402 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:04:03,564 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:04:03,709 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:04:03,856 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:04:04,002 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:04:04,236 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:04:04,444 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:04:04,659 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:04:04,864 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 02:04:05,446 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-04-29 02:04:05,753 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:04:06,411 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-04-29 02:04:06,710 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:04:06,897 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:04:07,086 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:04:07,274 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:04:07,469 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:04:08,188 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 02:04:08,517 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:04:09,200 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 02:04:09,518 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:04:10,152 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-04-29 02:04:10,440 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:04:11,092 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-04-29 02:04:11,411 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 02:04:11,570 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:04:11,732 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:04:11,887 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:04:12,047 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-29 02:04:12,254 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:04:12,460 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:04:12,652 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:04:12,849 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 02:04:13,592 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-29 02:04:13,924 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:04:14,677 WARN L205 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-29 02:04:15,007 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:04:15,860 WARN L205 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-04-29 02:04:16,246 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 02:04:17,048 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-04-29 02:04:17,490 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 02:04:18,322 WARN L205 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-29 02:04:18,696 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:04:19,470 WARN L205 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-29 02:04:19,834 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:04:20,742 WARN L205 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2021-04-29 02:04:21,186 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-29 02:04:22,095 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-04-29 02:04:22,536 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-04-29 02:04:23,352 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:04:23,720 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 02:04:24,604 WARN L205 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-04-29 02:04:25,011 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 02:04:25,825 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 02:04:26,196 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:04:26,958 WARN L205 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 02:04:27,311 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 02:04:28,170 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-29 02:04:28,567 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:04:29,373 WARN L205 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-29 02:04:29,764 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 02:04:30,631 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2021-04-29 02:04:31,022 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:04:31,852 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2021-04-29 02:04:32,256 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:04:33,090 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2021-04-29 02:04:33,541 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:04:34,461 WARN L205 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2021-04-29 02:04:34,906 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 02:04:34,933 INFO L158 LiptonReduction]: Checked pairs total: 20607 [2021-04-29 02:04:34,933 INFO L160 LiptonReduction]: Total number of compositions: 165 [2021-04-29 02:04:34,934 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57988 [2021-04-29 02:04:34,940 INFO L129 PetriNetUnfolder]: 1/67 cut-off events. [2021-04-29 02:04:34,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 02:04:34,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:04:34,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 02:04:34,941 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:04:34,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:04:34,941 INFO L82 PathProgramCache]: Analyzing trace with hash 51355344, now seen corresponding path program 1 times [2021-04-29 02:04:34,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:04:34,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765373579] [2021-04-29 02:04:34,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:04:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:04:34,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:34,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:34,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-04-29 02:04:34,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:04:34,972 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 02:04:34,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765373579] [2021-04-29 02:04:34,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 02:04:34,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 02:04:34,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448215954] [2021-04-29 02:04:34,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 02:04:34,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:04:34,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 02:04:34,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 02:04:34,976 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 276 [2021-04-29 02:04:34,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 118 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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 02:04:34,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:04:34,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 276 [2021-04-29 02:04:34,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:04:35,479 INFO L129 PetriNetUnfolder]: 519/2882 cut-off events. [2021-04-29 02:04:35,479 INFO L130 PetriNetUnfolder]: For 242/248 co-relation queries the response was YES. [2021-04-29 02:04:35,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4668 conditions, 2882 events. 519/2882 cut-off events. For 242/248 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 26003 event pairs, 72 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 2359. Up to 1170 conditions per place. [2021-04-29 02:04:35,494 INFO L132 encePairwiseOnDemand]: 265/276 looper letters, 3 selfloop transitions, 2 changer transitions 74/127 dead transitions. [2021-04-29 02:04:35,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 127 transitions, 414 flow [2021-04-29 02:04:35,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 02:04:35,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 02:04:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 624 transitions. [2021-04-29 02:04:35,500 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7536231884057971 [2021-04-29 02:04:35,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 624 transitions. [2021-04-29 02:04:35,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 624 transitions. [2021-04-29 02:04:35,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:04:35,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 624 transitions. [2021-04-29 02:04:35,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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 02:04:35,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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 02:04:35,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 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 02:04:35,507 INFO L185 Difference]: Start difference. First operand has 124 places, 118 transitions, 314 flow. Second operand 3 states and 624 transitions. [2021-04-29 02:04:35,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 127 transitions, 414 flow [2021-04-29 02:04:35,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 127 transitions, 414 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 02:04:35,511 INFO L241 Difference]: Finished difference. Result has 126 places, 53 transitions, 194 flow [2021-04-29 02:04:35,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=126, PETRI_TRANSITIONS=53} [2021-04-29 02:04:35,512 INFO L343 CegarLoopForPetriNet]: 124 programPoint places, 2 predicate places. [2021-04-29 02:04:35,512 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:04:35,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 53 transitions, 194 flow [2021-04-29 02:04:35,513 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 53 transitions, 194 flow [2021-04-29 02:04:35,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 53 transitions, 194 flow [2021-04-29 02:04:35,575 INFO L129 PetriNetUnfolder]: 199/633 cut-off events. [2021-04-29 02:04:35,575 INFO L130 PetriNetUnfolder]: For 306/308 co-relation queries the response was YES. [2021-04-29 02:04:35,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1187 conditions, 633 events. 199/633 cut-off events. For 306/308 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3169 event pairs, 72 based on Foata normal form. 0/550 useless extension candidates. Maximal degree in co-relation 602. Up to 193 conditions per place. [2021-04-29 02:04:35,589 INFO L146 LiptonReduction]: Number of co-enabled transitions 1800 [2021-04-29 02:04:35,594 INFO L158 LiptonReduction]: Checked pairs total: 1530 [2021-04-29 02:04:35,594 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 02:04:35,595 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 83 [2021-04-29 02:04:35,596 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 194 flow [2021-04-29 02:04:35,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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 02:04:35,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:04:35,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 02:04:35,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-04-29 02:04:35,597 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:04:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:04:35,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1592017679, now seen corresponding path program 1 times [2021-04-29 02:04:35,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:04:35,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525718745] [2021-04-29 02:04:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:04:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:04:35,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:35,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:04:35,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:35,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:04:35,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:35,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:04:35,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:35,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 02:04:35,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525718745] [2021-04-29 02:04:35,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 02:04:35,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 02:04:35,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852771948] [2021-04-29 02:04:35,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 02:04:35,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:04:35,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 02:04:35,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 02:04:35,679 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 276 [2021-04-29 02:04:35,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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 02:04:35,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:04:35,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 276 [2021-04-29 02:04:35,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 02:04:35,885 INFO L129 PetriNetUnfolder]: 207/671 cut-off events. [2021-04-29 02:04:35,885 INFO L130 PetriNetUnfolder]: For 327/332 co-relation queries the response was YES. [2021-04-29 02:04:35,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 671 events. 207/671 cut-off events. For 327/332 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3561 event pairs, 87 based on Foata normal form. 8/597 useless extension candidates. Maximal degree in co-relation 856. Up to 344 conditions per place. [2021-04-29 02:04:35,889 INFO L132 encePairwiseOnDemand]: 269/276 looper letters, 9 selfloop transitions, 6 changer transitions 3/60 dead transitions. [2021-04-29 02:04:35,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 60 transitions, 250 flow [2021-04-29 02:04:35,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 02:04:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 02:04:35,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 572 transitions. [2021-04-29 02:04:35,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5181159420289855 [2021-04-29 02:04:35,895 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 572 transitions. [2021-04-29 02:04:35,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 572 transitions. [2021-04-29 02:04:35,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 02:04:35,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 572 transitions. [2021-04-29 02:04:35,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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 02:04:35,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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 02:04:35,901 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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 02:04:35,901 INFO L185 Difference]: Start difference. First operand has 61 places, 53 transitions, 194 flow. Second operand 4 states and 572 transitions. [2021-04-29 02:04:35,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 60 transitions, 250 flow [2021-04-29 02:04:35,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 244 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 02:04:35,907 INFO L241 Difference]: Finished difference. Result has 65 places, 55 transitions, 218 flow [2021-04-29 02:04:35,908 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2021-04-29 02:04:35,908 INFO L343 CegarLoopForPetriNet]: 124 programPoint places, -59 predicate places. [2021-04-29 02:04:35,908 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 02:04:35,908 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 55 transitions, 218 flow [2021-04-29 02:04:35,908 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 55 transitions, 218 flow [2021-04-29 02:04:35,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions, 218 flow [2021-04-29 02:04:35,960 INFO L129 PetriNetUnfolder]: 207/663 cut-off events. [2021-04-29 02:04:35,961 INFO L130 PetriNetUnfolder]: For 299/301 co-relation queries the response was YES. [2021-04-29 02:04:35,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 663 events. 207/663 cut-off events. For 299/301 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3539 event pairs, 87 based on Foata normal form. 0/588 useless extension candidates. Maximal degree in co-relation 833. Up to 207 conditions per place. [2021-04-29 02:04:35,970 INFO L146 LiptonReduction]: Number of co-enabled transitions 1870 [2021-04-29 02:04:36,172 INFO L158 LiptonReduction]: Checked pairs total: 1572 [2021-04-29 02:04:36,172 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 02:04:36,172 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 264 [2021-04-29 02:04:36,173 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 218 flow [2021-04-29 02:04:36,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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 02:04:36,174 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 02:04:36,174 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 02:04:36,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-04-29 02:04:36,174 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 02:04:36,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 02:04:36,175 INFO L82 PathProgramCache]: Analyzing trace with hash -2094528401, now seen corresponding path program 1 times [2021-04-29 02:04:36,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 02:04:36,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293603768] [2021-04-29 02:04:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 02:04:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:04:36,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:04:36,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:04:36,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:04:36,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:04:36,329 INFO L142 QuantifierPusher]: treesize reduction 28, result has 34.9 percent of original size [2021-04-29 02:04:36,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:04:36,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 02:04:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-29 02:04:36,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293603768] [2021-04-29 02:04:36,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112446816] [2021-04-29 02:04:36,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-29 02:04:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 02:04:36,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2021-04-29 02:04:36,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-29 02:04:36,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-29 02:04:36,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:04:36,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:04:36,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:04:36,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:04:36,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:04:36,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 02:04:36,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 02:04:36,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 02:04:36,674 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-29 02:04:36,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:04:36,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:04:36,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:04:36,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:04:36,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-29 02:04:36,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 02:04:36,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 02:04:36,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-29 02:04:36,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 02:04:36,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 02:04:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-29 02:04:36,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-29 02:04:36,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 9 [2021-04-29 02:04:36,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897374187] [2021-04-29 02:04:36,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-29 02:04:36,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 02:04:36,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-29 02:04:36,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-04-29 02:04:36,787 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 276 [2021-04-29 02:04:36,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 218 flow. Second operand has 10 states, 10 states have (on average 70.6) internal successors, (706), 10 states have internal predecessors, (706), 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 02:04:36,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 02:04:36,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 276 [2021-04-29 02:04:36,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-04-29 02:09:11,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. Cannot interrupt operation gracefully because timeout expired. Forcing shutdown