/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:46:49,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:46:49,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:46:49,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:46:49,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:46:49,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:46:49,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:46:49,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:46:49,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:46:49,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:46:49,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:46:49,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:46:49,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:46:49,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:46:49,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:46:49,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:46:49,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:46:49,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:46:49,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:46:49,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:46:49,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:46:49,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:46:49,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:46:49,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:46:49,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 10:46:49,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 10:46:49,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 10:46:49,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 10:46:49,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 10:46:49,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 10:46:49,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:46:49,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:46:49,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:46:49,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:46:49,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:46:49,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:46:49,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:46:49,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:46:49,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:46:49,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:46:49,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:46:49,435 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:46:49,461 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:46:49,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:46:49,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:46:49,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:46:49,464 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:46:49,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:46:49,464 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:46:49,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:46:49,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:46:49,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:46:49,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:46:49,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:46:49,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:46:49,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:46:49,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:46:49,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:46:49,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:46:49,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:46:49,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:46:49,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:46:49,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:46:49,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:46:49,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:46:49,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:46:49,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:46:49,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:46:49,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:46:49,467 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:46:49,467 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:46:49,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:46:49,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:46:49,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:46:49,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:46:49,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:46:49,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:46:49,704 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:46:49,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2021-03-26 10:46:49,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce549d3d/19c6ac23970a42639e3145f1b4ba06ee/FLAGeabe31461 [2021-03-26 10:46:50,160 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:46:50,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2021-03-26 10:46:50,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce549d3d/19c6ac23970a42639e3145f1b4ba06ee/FLAGeabe31461 [2021-03-26 10:46:50,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce549d3d/19c6ac23970a42639e3145f1b4ba06ee [2021-03-26 10:46:50,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:46:50,186 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:46:50,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:46:50,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:46:50,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:46:50,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b79772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50, skipping insertion in model container [2021-03-26 10:46:50,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:46:50,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:46:50,473 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-lit/fkp2014.i[30003,30016] [2021-03-26 10:46:50,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:46:50,486 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:46:50,502 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-lit/fkp2014.i[30003,30016] [2021-03-26 10:46:50,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:46:50,565 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:46:50,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50 WrapperNode [2021-03-26 10:46:50,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:46:50,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:46:50,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:46:50,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:46:50,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:46:50,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:46:50,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:46:50,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:46:50,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... [2021-03-26 10:46:50,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:46:50,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:46:50,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:46:50,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:46:50,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:46:50,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:46:50,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:46:50,673 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-03-26 10:46:50,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-03-26 10:46:50,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:46:50,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:46:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:46:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:46:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:46:50,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:46:50,675 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:46:51,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:46:51,010 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-03-26 10:46:51,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:46:51 BoogieIcfgContainer [2021-03-26 10:46:51,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:46:51,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:46:51,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:46:51,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:46:51,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:46:50" (1/3) ... [2021-03-26 10:46:51,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339eb4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:46:51, skipping insertion in model container [2021-03-26 10:46:51,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:50" (2/3) ... [2021-03-26 10:46:51,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339eb4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:46:51, skipping insertion in model container [2021-03-26 10:46:51,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:46:51" (3/3) ... [2021-03-26 10:46:51,016 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2021-03-26 10:46:51,019 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:46:51,022 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:46:51,022 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:46:51,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,035 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,035 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,035 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,035 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,036 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,036 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,036 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,036 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,036 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,036 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,036 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,036 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,037 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,038 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,040 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,040 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,040 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,040 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,040 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,040 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,040 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,040 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:51,042 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:46:51,053 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 10:46:51,065 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:46:51,066 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:46:51,066 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:46:51,066 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:46:51,066 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:46:51,066 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:46:51,066 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:46:51,066 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:46:51,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions, 115 flow [2021-03-26 10:46:51,090 INFO L129 PetriNetUnfolder]: 4/64 cut-off events. [2021-03-26 10:46:51,090 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:51,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 4/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2021-03-26 10:46:51,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 55 transitions, 115 flow [2021-03-26 10:46:51,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 55 transitions, 115 flow [2021-03-26 10:46:51,096 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:51,104 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 55 transitions, 115 flow [2021-03-26 10:46:51,106 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 55 transitions, 115 flow [2021-03-26 10:46:51,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 55 transitions, 115 flow [2021-03-26 10:46:51,125 INFO L129 PetriNetUnfolder]: 4/64 cut-off events. [2021-03-26 10:46:51,125 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:51,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 4/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 34. Up to 4 conditions per place. [2021-03-26 10:46:51,127 INFO L142 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-26 10:46:51,833 INFO L154 LiptonReduction]: Checked pairs total: 195 [2021-03-26 10:46:51,834 INFO L156 LiptonReduction]: Total number of compositions: 38 [2021-03-26 10:46:51,836 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 741 [2021-03-26 10:46:51,847 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-26 10:46:51,847 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:51,848 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:51,848 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:51,848 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:51,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:51,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1975403421, now seen corresponding path program 1 times [2021-03-26 10:46:51,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:51,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649863904] [2021-03-26 10:46:51,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:52,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:52,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:46:52,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:52,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:52,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:52,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:52,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:52,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:52,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:52,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649863904] [2021-03-26 10:46:52,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:52,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:46:52,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006546814] [2021-03-26 10:46:52,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:46:52,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:52,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:46:52,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:46:52,074 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 93 [2021-03-26 10:46:52,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 47 flow. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 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) [2021-03-26 10:46:52,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:52,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 93 [2021-03-26 10:46:52,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:52,104 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 10:46:52,104 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 10:46:52,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:46:52,105 INFO L132 encePairwiseOnDemand]: 87/93 looper letters, 2 selfloop transitions, 5 changer transitions 3/20 dead transitions. [2021-03-26 10:46:52,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 59 flow [2021-03-26 10:46:52,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:46:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:46:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2021-03-26 10:46:52,114 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7347670250896058 [2021-03-26 10:46:52,114 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 410 transitions. [2021-03-26 10:46:52,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 410 transitions. [2021-03-26 10:46:52,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:52,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 410 transitions. [2021-03-26 10:46:52,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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) [2021-03-26 10:46:52,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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) [2021-03-26 10:46:52,123 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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) [2021-03-26 10:46:52,124 INFO L185 Difference]: Start difference. First operand has 24 places, 21 transitions, 47 flow. Second operand 6 states and 410 transitions. [2021-03-26 10:46:52,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 59 flow [2021-03-26 10:46:52,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 59 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:46:52,127 INFO L241 Difference]: Finished difference. Result has 28 places, 17 transitions, 49 flow [2021-03-26 10:46:52,128 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=49, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2021-03-26 10:46:52,128 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2021-03-26 10:46:52,129 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:52,129 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 17 transitions, 49 flow [2021-03-26 10:46:52,129 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 17 transitions, 49 flow [2021-03-26 10:46:52,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 17 transitions, 49 flow [2021-03-26 10:46:52,131 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 10:46:52,131 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:52,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 10:46:52,132 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 10:46:52,676 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:46:52,846 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-03-26 10:46:52,903 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-26 10:46:52,903 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 10:46:52,903 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 774 [2021-03-26 10:46:52,904 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 10 transitions, 35 flow [2021-03-26 10:46:52,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 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) [2021-03-26 10:46:52,904 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:52,904 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:52,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:46:52,904 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:52,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:52,905 INFO L82 PathProgramCache]: Analyzing trace with hash -45927120, now seen corresponding path program 1 times [2021-03-26 10:46:52,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:52,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956909842] [2021-03-26 10:46:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:46:52,925 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:46:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:46:52,943 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:46:52,965 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:46:52,965 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:46:52,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:46:52,966 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 10:46:52,967 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,975 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,976 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,979 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,979 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,979 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,981 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,982 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,982 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,982 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,982 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,982 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,982 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,982 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,982 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,983 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,983 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,984 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,984 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,984 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,984 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,984 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,984 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,985 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,985 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,987 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,987 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,988 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,988 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,992 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,992 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:52,993 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:46:52,993 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:46:52,995 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:46:52,996 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:46:52,996 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:46:52,996 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:46:52,996 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:46:52,996 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:46:52,996 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:46:52,996 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:46:52,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 71 transitions, 154 flow [2021-03-26 10:46:53,010 INFO L129 PetriNetUnfolder]: 6/93 cut-off events. [2021-03-26 10:46:53,011 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 10:46:53,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 6/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 145 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 65. Up to 6 conditions per place. [2021-03-26 10:46:53,016 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 71 transitions, 154 flow [2021-03-26 10:46:53,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 71 transitions, 154 flow [2021-03-26 10:46:53,016 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:53,016 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 71 transitions, 154 flow [2021-03-26 10:46:53,017 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 71 transitions, 154 flow [2021-03-26 10:46:53,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 71 transitions, 154 flow [2021-03-26 10:46:53,025 INFO L129 PetriNetUnfolder]: 6/93 cut-off events. [2021-03-26 10:46:53,025 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 10:46:53,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 6/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 146 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 65. Up to 6 conditions per place. [2021-03-26 10:46:53,027 INFO L142 LiptonReduction]: Number of co-enabled transitions 1320 [2021-03-26 10:46:53,633 INFO L154 LiptonReduction]: Checked pairs total: 947 [2021-03-26 10:46:53,633 INFO L156 LiptonReduction]: Total number of compositions: 46 [2021-03-26 10:46:53,633 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 617 [2021-03-26 10:46:53,636 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 10:46:53,636 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:53,636 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:53,636 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:53,636 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:53,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:53,636 INFO L82 PathProgramCache]: Analyzing trace with hash 311131482, now seen corresponding path program 1 times [2021-03-26 10:46:53,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:53,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400806123] [2021-03-26 10:46:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:53,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:53,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:46:53,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:53,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:53,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:53,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:53,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:53,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:53,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:53,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:53,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400806123] [2021-03-26 10:46:53,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:53,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:46:53,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425268251] [2021-03-26 10:46:53,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:46:53,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:53,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:46:53,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:46:53,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 117 [2021-03-26 10:46:53,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 70 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 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) [2021-03-26 10:46:53,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:53,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 117 [2021-03-26 10:46:53,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:53,714 INFO L129 PetriNetUnfolder]: 12/70 cut-off events. [2021-03-26 10:46:53,714 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 10:46:53,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 70 events. 12/70 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 174 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 79. Up to 11 conditions per place. [2021-03-26 10:46:53,715 INFO L132 encePairwiseOnDemand]: 109/117 looper letters, 16 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2021-03-26 10:46:53,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 144 flow [2021-03-26 10:46:53,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:46:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:46:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 470 transitions. [2021-03-26 10:46:53,717 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6695156695156695 [2021-03-26 10:46:53,717 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 470 transitions. [2021-03-26 10:46:53,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 470 transitions. [2021-03-26 10:46:53,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:53,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 470 transitions. [2021-03-26 10:46:53,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 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) [2021-03-26 10:46:53,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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) [2021-03-26 10:46:53,720 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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) [2021-03-26 10:46:53,720 INFO L185 Difference]: Start difference. First operand has 34 places, 29 transitions, 70 flow. Second operand 6 states and 470 transitions. [2021-03-26 10:46:53,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 144 flow [2021-03-26 10:46:53,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 142 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-26 10:46:53,721 INFO L241 Difference]: Finished difference. Result has 44 places, 36 transitions, 130 flow [2021-03-26 10:46:53,721 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=130, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2021-03-26 10:46:53,721 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2021-03-26 10:46:53,721 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:53,721 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 36 transitions, 130 flow [2021-03-26 10:46:53,722 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 36 transitions, 130 flow [2021-03-26 10:46:53,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 36 transitions, 130 flow [2021-03-26 10:46:53,726 INFO L129 PetriNetUnfolder]: 3/54 cut-off events. [2021-03-26 10:46:53,726 INFO L130 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2021-03-26 10:46:53,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 54 events. 3/54 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2021-03-26 10:46:53,727 INFO L142 LiptonReduction]: Number of co-enabled transitions 382 [2021-03-26 10:46:54,244 INFO L154 LiptonReduction]: Checked pairs total: 191 [2021-03-26 10:46:54,244 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-26 10:46:54,244 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 523 [2021-03-26 10:46:54,245 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 116 flow [2021-03-26 10:46:54,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 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) [2021-03-26 10:46:54,245 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:54,245 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:54,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:46:54,245 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:54,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:54,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1374965555, now seen corresponding path program 1 times [2021-03-26 10:46:54,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:54,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902927714] [2021-03-26 10:46:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:54,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:46:54,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:54,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:46:54,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902927714] [2021-03-26 10:46:54,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:54,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:46:54,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861882000] [2021-03-26 10:46:54,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:46:54,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:54,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:46:54,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:46:54,288 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 128 [2021-03-26 10:46:54,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2021-03-26 10:46:54,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:54,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 128 [2021-03-26 10:46:54,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:54,346 INFO L129 PetriNetUnfolder]: 14/73 cut-off events. [2021-03-26 10:46:54,347 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-03-26 10:46:54,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 73 events. 14/73 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 1 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 120. Up to 11 conditions per place. [2021-03-26 10:46:54,347 INFO L132 encePairwiseOnDemand]: 119/128 looper letters, 16 selfloop transitions, 10 changer transitions 0/38 dead transitions. [2021-03-26 10:46:54,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 210 flow [2021-03-26 10:46:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:46:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:46:54,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2021-03-26 10:46:54,350 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.64453125 [2021-03-26 10:46:54,350 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2021-03-26 10:46:54,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2021-03-26 10:46:54,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:54,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2021-03-26 10:46:54,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:54,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 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) [2021-03-26 10:46:54,353 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 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) [2021-03-26 10:46:54,353 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 116 flow. Second operand 6 states and 495 transitions. [2021-03-26 10:46:54,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 210 flow [2021-03-26 10:46:54,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:46:54,354 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 155 flow [2021-03-26 10:46:54,355 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=155, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-26 10:46:54,355 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2021-03-26 10:46:54,355 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:54,355 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 155 flow [2021-03-26 10:46:54,355 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 155 flow [2021-03-26 10:46:54,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 32 transitions, 155 flow [2021-03-26 10:46:54,358 INFO L129 PetriNetUnfolder]: 4/47 cut-off events. [2021-03-26 10:46:54,359 INFO L130 PetriNetUnfolder]: For 31/34 co-relation queries the response was YES. [2021-03-26 10:46:54,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 47 events. 4/47 cut-off events. For 31/34 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 100 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 83. Up to 9 conditions per place. [2021-03-26 10:46:54,359 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-26 10:46:54,654 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-03-26 10:46:54,703 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-26 10:46:54,703 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:46:54,703 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 348 [2021-03-26 10:46:54,704 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 155 flow [2021-03-26 10:46:54,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2021-03-26 10:46:54,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:54,704 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:54,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:46:54,704 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:54,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:54,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1298036228, now seen corresponding path program 1 times [2021-03-26 10:46:54,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:54,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384662970] [2021-03-26 10:46:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:54,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:54,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:54,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:46:54,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:54,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384662970] [2021-03-26 10:46:54,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312763378] [2021-03-26 10:46:54,747 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 [2021-03-26 10:46:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:54,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 10:46:54,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 10:46:54,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:54,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:54,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:54,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:54,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:54,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:54,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:54,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:54,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:54,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:54,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:54,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:54,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:54,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:54,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:54,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:54,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:54,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:54,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:54,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:54,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:54,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:54,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:54,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:54,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 10:46:54,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-03-26 10:46:54,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166126010] [2021-03-26 10:46:54,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 10:46:54,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:54,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 10:46:54,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-26 10:46:54,978 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 130 [2021-03-26 10:46:54,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 155 flow. Second operand has 12 states, 12 states have (on average 87.16666666666667) internal successors, (1046), 12 states have internal predecessors, (1046), 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) [2021-03-26 10:46:54,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:54,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 130 [2021-03-26 10:46:54,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:55,051 INFO L129 PetriNetUnfolder]: 11/56 cut-off events. [2021-03-26 10:46:55,052 INFO L130 PetriNetUnfolder]: For 61/67 co-relation queries the response was YES. [2021-03-26 10:46:55,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 56 events. 11/56 cut-off events. For 61/67 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 144. Up to 12 conditions per place. [2021-03-26 10:46:55,052 INFO L132 encePairwiseOnDemand]: 121/130 looper letters, 8 selfloop transitions, 16 changer transitions 0/37 dead transitions. [2021-03-26 10:46:55,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 37 transitions, 240 flow [2021-03-26 10:46:55,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 10:46:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 10:46:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 712 transitions. [2021-03-26 10:46:55,056 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6846153846153846 [2021-03-26 10:46:55,056 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 712 transitions. [2021-03-26 10:46:55,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 712 transitions. [2021-03-26 10:46:55,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:55,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 712 transitions. [2021-03-26 10:46:55,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 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) [2021-03-26 10:46:55,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 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) [2021-03-26 10:46:55,060 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 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) [2021-03-26 10:46:55,060 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 155 flow. Second operand 8 states and 712 transitions. [2021-03-26 10:46:55,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 37 transitions, 240 flow [2021-03-26 10:46:55,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 37 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:46:55,063 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 205 flow [2021-03-26 10:46:55,063 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=205, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-26 10:46:55,063 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 13 predicate places. [2021-03-26 10:46:55,064 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:55,064 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 205 flow [2021-03-26 10:46:55,064 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 205 flow [2021-03-26 10:46:55,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 205 flow [2021-03-26 10:46:55,067 INFO L129 PetriNetUnfolder]: 6/48 cut-off events. [2021-03-26 10:46:55,067 INFO L130 PetriNetUnfolder]: For 53/56 co-relation queries the response was YES. [2021-03-26 10:46:55,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 48 events. 6/48 cut-off events. For 53/56 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 114 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 107. Up to 9 conditions per place. [2021-03-26 10:46:55,068 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-26 10:46:55,070 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:46:55,070 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:46:55,070 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 10:46:55,076 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 205 flow [2021-03-26 10:46:55,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 87.16666666666667) internal successors, (1046), 12 states have internal predecessors, (1046), 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) [2021-03-26 10:46:55,076 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:55,077 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:55,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 10:46:55,292 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:55,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:55,292 INFO L82 PathProgramCache]: Analyzing trace with hash 340143734, now seen corresponding path program 1 times [2021-03-26 10:46:55,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:55,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841207743] [2021-03-26 10:46:55,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:55,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:46:55,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:55,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:55,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841207743] [2021-03-26 10:46:55,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269270269] [2021-03-26 10:46:55,351 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 [2021-03-26 10:46:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:55,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-26 10:46:55,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 10:46:55,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:55,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:55,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:55,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:55,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:55,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:55,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:55,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:55,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:55,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:55,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:55,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:55,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:46:55,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 10:46:55,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:46:55,501 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-03-26 10:46:55,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,508 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 10:46:55,511 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:46:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:46:55,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:55,517 INFO L142 QuantifierPusher]: treesize reduction 8, result has 50.0 percent of original size [2021-03-26 10:46:55,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:55,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:55,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:55,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 10:46:55,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 10 [2021-03-26 10:46:55,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981432157] [2021-03-26 10:46:55,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:46:55,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:55,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:46:55,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-03-26 10:46:55,528 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2021-03-26 10:46:55,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 205 flow. Second operand has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-03-26 10:46:55,531 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:55,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2021-03-26 10:46:55,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:55,609 INFO L129 PetriNetUnfolder]: 14/68 cut-off events. [2021-03-26 10:46:55,609 INFO L130 PetriNetUnfolder]: For 96/108 co-relation queries the response was YES. [2021-03-26 10:46:55,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 68 events. 14/68 cut-off events. For 96/108 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 193 event pairs, 0 based on Foata normal form. 9/69 useless extension candidates. Maximal degree in co-relation 212. Up to 13 conditions per place. [2021-03-26 10:46:55,611 INFO L132 encePairwiseOnDemand]: 120/130 looper letters, 20 selfloop transitions, 18 changer transitions 0/47 dead transitions. [2021-03-26 10:46:55,611 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 47 transitions, 349 flow [2021-03-26 10:46:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 10:46:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 10:46:55,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 807 transitions. [2021-03-26 10:46:55,613 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6207692307692307 [2021-03-26 10:46:55,613 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 807 transitions. [2021-03-26 10:46:55,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 807 transitions. [2021-03-26 10:46:55,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:55,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 807 transitions. [2021-03-26 10:46:55,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 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) [2021-03-26 10:46:55,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 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) [2021-03-26 10:46:55,618 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 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) [2021-03-26 10:46:55,618 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 205 flow. Second operand 10 states and 807 transitions. [2021-03-26 10:46:55,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 47 transitions, 349 flow [2021-03-26 10:46:55,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 47 transitions, 332 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-26 10:46:55,621 INFO L241 Difference]: Finished difference. Result has 55 places, 39 transitions, 271 flow [2021-03-26 10:46:55,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=271, PETRI_PLACES=55, PETRI_TRANSITIONS=39} [2021-03-26 10:46:55,621 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 21 predicate places. [2021-03-26 10:46:55,621 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:55,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 39 transitions, 271 flow [2021-03-26 10:46:55,622 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 39 transitions, 271 flow [2021-03-26 10:46:55,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 39 transitions, 271 flow [2021-03-26 10:46:55,626 INFO L129 PetriNetUnfolder]: 6/56 cut-off events. [2021-03-26 10:46:55,626 INFO L130 PetriNetUnfolder]: For 105/107 co-relation queries the response was YES. [2021-03-26 10:46:55,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 56 events. 6/56 cut-off events. For 105/107 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 163 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 151. Up to 10 conditions per place. [2021-03-26 10:46:55,627 INFO L142 LiptonReduction]: Number of co-enabled transitions 472 [2021-03-26 10:46:55,629 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:46:55,629 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:46:55,629 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 10:46:55,630 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 271 flow [2021-03-26 10:46:55,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-03-26 10:46:55,630 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:55,630 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:55,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 10:46:55,846 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:55,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1809462368, now seen corresponding path program 2 times [2021-03-26 10:46:55,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:55,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293057445] [2021-03-26 10:46:55,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:55,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:55,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:55,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:46:55,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:55,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:46:55,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293057445] [2021-03-26 10:46:55,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:55,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:46:55,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066783725] [2021-03-26 10:46:55,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:46:55,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:55,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:46:55,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:46:55,898 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2021-03-26 10:46:55,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 39 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-03-26 10:46:55,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:55,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2021-03-26 10:46:55,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:55,982 INFO L129 PetriNetUnfolder]: 13/67 cut-off events. [2021-03-26 10:46:55,983 INFO L130 PetriNetUnfolder]: For 159/176 co-relation queries the response was YES. [2021-03-26 10:46:55,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 67 events. 13/67 cut-off events. For 159/176 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 196 event pairs, 3 based on Foata normal form. 13/72 useless extension candidates. Maximal degree in co-relation 229. Up to 14 conditions per place. [2021-03-26 10:46:55,983 INFO L132 encePairwiseOnDemand]: 119/130 looper letters, 15 selfloop transitions, 19 changer transitions 0/43 dead transitions. [2021-03-26 10:46:55,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 43 transitions, 355 flow [2021-03-26 10:46:55,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 10:46:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 10:46:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 801 transitions. [2021-03-26 10:46:55,985 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6161538461538462 [2021-03-26 10:46:55,985 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 801 transitions. [2021-03-26 10:46:55,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 801 transitions. [2021-03-26 10:46:55,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:55,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 801 transitions. [2021-03-26 10:46:55,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.1) internal successors, (801), 10 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:55,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 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) [2021-03-26 10:46:55,989 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 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) [2021-03-26 10:46:55,989 INFO L185 Difference]: Start difference. First operand has 55 places, 39 transitions, 271 flow. Second operand 10 states and 801 transitions. [2021-03-26 10:46:55,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 43 transitions, 355 flow [2021-03-26 10:46:55,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 43 transitions, 306 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-03-26 10:46:55,991 INFO L241 Difference]: Finished difference. Result has 56 places, 39 transitions, 264 flow [2021-03-26 10:46:55,991 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=264, PETRI_PLACES=56, PETRI_TRANSITIONS=39} [2021-03-26 10:46:55,991 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 22 predicate places. [2021-03-26 10:46:55,991 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:55,991 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 39 transitions, 264 flow [2021-03-26 10:46:55,991 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 39 transitions, 264 flow [2021-03-26 10:46:55,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 39 transitions, 264 flow [2021-03-26 10:46:55,995 INFO L129 PetriNetUnfolder]: 5/53 cut-off events. [2021-03-26 10:46:55,995 INFO L130 PetriNetUnfolder]: For 68/72 co-relation queries the response was YES. [2021-03-26 10:46:55,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 53 events. 5/53 cut-off events. For 68/72 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 152 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 145. Up to 10 conditions per place. [2021-03-26 10:46:56,005 INFO L142 LiptonReduction]: Number of co-enabled transitions 472 [2021-03-26 10:46:56,033 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-26 10:46:56,033 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:46:56,033 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-26 10:46:56,034 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 260 flow [2021-03-26 10:46:56,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2021-03-26 10:46:56,034 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:56,034 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-03-26 10:46:56,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:46:56,034 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:56,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1046527514, now seen corresponding path program 1 times [2021-03-26 10:46:56,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:56,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485223645] [2021-03-26 10:46:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:46:56,049 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:46:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:46:56,067 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:46:56,069 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:46:56,070 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:46:56,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:46:56,070 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 10:46:56,070 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-26 10:46:56,076 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,076 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,076 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,076 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,076 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,076 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,076 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,077 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,078 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,079 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,080 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,081 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,082 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,082 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,082 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,083 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,084 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,084 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:56,084 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:46:56,084 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 10:46:56,085 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:46:56,085 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:46:56,085 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:46:56,085 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:46:56,085 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:46:56,085 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:46:56,085 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:46:56,085 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:46:56,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 195 flow [2021-03-26 10:46:56,099 INFO L129 PetriNetUnfolder]: 8/122 cut-off events. [2021-03-26 10:46:56,099 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-26 10:46:56,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 122 events. 8/122 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 225 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2021-03-26 10:46:56,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 87 transitions, 195 flow [2021-03-26 10:46:56,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 87 transitions, 195 flow [2021-03-26 10:46:56,100 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:56,101 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 87 transitions, 195 flow [2021-03-26 10:46:56,101 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 87 transitions, 195 flow [2021-03-26 10:46:56,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 195 flow [2021-03-26 10:46:56,108 INFO L129 PetriNetUnfolder]: 8/122 cut-off events. [2021-03-26 10:46:56,108 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-26 10:46:56,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 122 events. 8/122 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 233 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2021-03-26 10:46:56,110 INFO L142 LiptonReduction]: Number of co-enabled transitions 2700 [2021-03-26 10:46:56,989 INFO L154 LiptonReduction]: Checked pairs total: 2418 [2021-03-26 10:46:56,989 INFO L156 LiptonReduction]: Total number of compositions: 63 [2021-03-26 10:46:56,989 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 889 [2021-03-26 10:46:56,990 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-26 10:46:56,991 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:56,991 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:56,991 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:56,991 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:56,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:56,991 INFO L82 PathProgramCache]: Analyzing trace with hash -118506731, now seen corresponding path program 1 times [2021-03-26 10:46:56,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:56,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721736472] [2021-03-26 10:46:56,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:57,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:46:57,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:57,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:57,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:57,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:57,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:57,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721736472] [2021-03-26 10:46:57,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:57,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:46:57,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411768948] [2021-03-26 10:46:57,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:46:57,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:57,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:46:57,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:46:57,032 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 150 [2021-03-26 10:46:57,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 101 flow. Second operand has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2021-03-26 10:46:57,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:57,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 150 [2021-03-26 10:46:57,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:57,114 INFO L129 PetriNetUnfolder]: 190/440 cut-off events. [2021-03-26 10:46:57,114 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-26 10:46:57,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 440 events. 190/440 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2327 event pairs, 20 based on Foata normal form. 81/403 useless extension candidates. Maximal degree in co-relation 757. Up to 110 conditions per place. [2021-03-26 10:46:57,117 INFO L132 encePairwiseOnDemand]: 138/150 looper letters, 37 selfloop transitions, 11 changer transitions 0/69 dead transitions. [2021-03-26 10:46:57,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 69 transitions, 255 flow [2021-03-26 10:46:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:46:57,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:46:57,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 634 transitions. [2021-03-26 10:46:57,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7044444444444444 [2021-03-26 10:46:57,118 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 634 transitions. [2021-03-26 10:46:57,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 634 transitions. [2021-03-26 10:46:57,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:57,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 634 transitions. [2021-03-26 10:46:57,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.66666666666667) internal successors, (634), 6 states have internal predecessors, (634), 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) [2021-03-26 10:46:57,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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) [2021-03-26 10:46:57,121 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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) [2021-03-26 10:46:57,121 INFO L185 Difference]: Start difference. First operand has 45 places, 40 transitions, 101 flow. Second operand 6 states and 634 transitions. [2021-03-26 10:46:57,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 69 transitions, 255 flow [2021-03-26 10:46:57,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 69 transitions, 249 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-26 10:46:57,122 INFO L241 Difference]: Finished difference. Result has 53 places, 47 transitions, 174 flow [2021-03-26 10:46:57,122 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2021-03-26 10:46:57,123 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2021-03-26 10:46:57,123 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:57,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 47 transitions, 174 flow [2021-03-26 10:46:57,123 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 47 transitions, 174 flow [2021-03-26 10:46:57,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 47 transitions, 174 flow [2021-03-26 10:46:57,130 INFO L129 PetriNetUnfolder]: 22/143 cut-off events. [2021-03-26 10:46:57,131 INFO L130 PetriNetUnfolder]: For 46/59 co-relation queries the response was YES. [2021-03-26 10:46:57,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 143 events. 22/143 cut-off events. For 46/59 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 568 event pairs, 6 based on Foata normal form. 1/123 useless extension candidates. Maximal degree in co-relation 256. Up to 48 conditions per place. [2021-03-26 10:46:57,132 INFO L142 LiptonReduction]: Number of co-enabled transitions 908 [2021-03-26 10:46:57,877 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-03-26 10:46:57,940 INFO L154 LiptonReduction]: Checked pairs total: 666 [2021-03-26 10:46:57,940 INFO L156 LiptonReduction]: Total number of compositions: 14 [2021-03-26 10:46:57,940 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 817 [2021-03-26 10:46:57,940 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 150 flow [2021-03-26 10:46:57,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2021-03-26 10:46:57,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:57,941 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:57,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:46:57,941 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:57,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:57,941 INFO L82 PathProgramCache]: Analyzing trace with hash -883129095, now seen corresponding path program 1 times [2021-03-26 10:46:57,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:57,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067155868] [2021-03-26 10:46:57,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:57,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:46:57,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:57,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:57,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:57,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:57,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:57,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:46:57,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067155868] [2021-03-26 10:46:57,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:57,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:46:57,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106623388] [2021-03-26 10:46:57,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:46:57,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:57,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:46:57,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:46:57,971 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 163 [2021-03-26 10:46:57,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2021-03-26 10:46:57,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:57,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 163 [2021-03-26 10:46:57,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:58,046 INFO L129 PetriNetUnfolder]: 131/338 cut-off events. [2021-03-26 10:46:58,046 INFO L130 PetriNetUnfolder]: For 248/430 co-relation queries the response was YES. [2021-03-26 10:46:58,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 338 events. 131/338 cut-off events. For 248/430 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1657 event pairs, 51 based on Foata normal form. 4/270 useless extension candidates. Maximal degree in co-relation 738. Up to 125 conditions per place. [2021-03-26 10:46:58,048 INFO L132 encePairwiseOnDemand]: 152/163 looper letters, 34 selfloop transitions, 13 changer transitions 0/59 dead transitions. [2021-03-26 10:46:58,048 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 345 flow [2021-03-26 10:46:58,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:46:58,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:46:58,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2021-03-26 10:46:58,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.656441717791411 [2021-03-26 10:46:58,050 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 642 transitions. [2021-03-26 10:46:58,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 642 transitions. [2021-03-26 10:46:58,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:58,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 642 transitions. [2021-03-26 10:46:58,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:58,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 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) [2021-03-26 10:46:58,053 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 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) [2021-03-26 10:46:58,053 INFO L185 Difference]: Start difference. First operand has 43 places, 36 transitions, 150 flow. Second operand 6 states and 642 transitions. [2021-03-26 10:46:58,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 345 flow [2021-03-26 10:46:58,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 59 transitions, 330 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 10:46:58,055 INFO L241 Difference]: Finished difference. Result has 48 places, 40 transitions, 205 flow [2021-03-26 10:46:58,055 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2021-03-26 10:46:58,055 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 3 predicate places. [2021-03-26 10:46:58,055 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:58,055 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 40 transitions, 205 flow [2021-03-26 10:46:58,055 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 40 transitions, 205 flow [2021-03-26 10:46:58,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 40 transitions, 205 flow [2021-03-26 10:46:58,065 INFO L129 PetriNetUnfolder]: 31/157 cut-off events. [2021-03-26 10:46:58,065 INFO L130 PetriNetUnfolder]: For 70/90 co-relation queries the response was YES. [2021-03-26 10:46:58,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 157 events. 31/157 cut-off events. For 70/90 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 756 event pairs, 14 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 358. Up to 59 conditions per place. [2021-03-26 10:46:58,067 INFO L142 LiptonReduction]: Number of co-enabled transitions 652 [2021-03-26 10:46:58,140 INFO L154 LiptonReduction]: Checked pairs total: 218 [2021-03-26 10:46:58,140 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:46:58,140 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85 [2021-03-26 10:46:58,141 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 209 flow [2021-03-26 10:46:58,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2021-03-26 10:46:58,141 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:58,142 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:58,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 10:46:58,142 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:58,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:58,142 INFO L82 PathProgramCache]: Analyzing trace with hash 158144893, now seen corresponding path program 1 times [2021-03-26 10:46:58,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:58,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076185949] [2021-03-26 10:46:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:58,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:58,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:46:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:58,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076185949] [2021-03-26 10:46:58,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742117425] [2021-03-26 10:46:58,184 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 [2021-03-26 10:46:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:58,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-26 10:46:58,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 10:46:58,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:58,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 10:46:58,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-03-26 10:46:58,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999804323] [2021-03-26 10:46:58,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 10:46:58,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:58,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 10:46:58,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-26 10:46:58,308 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-03-26 10:46:58,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 209 flow. Second operand has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 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) [2021-03-26 10:46:58,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:58,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-03-26 10:46:58,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:58,431 INFO L129 PetriNetUnfolder]: 97/275 cut-off events. [2021-03-26 10:46:58,431 INFO L130 PetriNetUnfolder]: For 287/417 co-relation queries the response was YES. [2021-03-26 10:46:58,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 275 events. 97/275 cut-off events. For 287/417 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1291 event pairs, 14 based on Foata normal form. 21/260 useless extension candidates. Maximal degree in co-relation 853. Up to 93 conditions per place. [2021-03-26 10:46:58,433 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 26 selfloop transitions, 34 changer transitions 0/73 dead transitions. [2021-03-26 10:46:58,433 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 73 transitions, 477 flow [2021-03-26 10:46:58,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 10:46:58,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 10:46:58,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 989 transitions. [2021-03-26 10:46:58,435 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.665993265993266 [2021-03-26 10:46:58,435 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 989 transitions. [2021-03-26 10:46:58,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 989 transitions. [2021-03-26 10:46:58,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:58,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 989 transitions. [2021-03-26 10:46:58,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 109.88888888888889) internal successors, (989), 9 states have internal predecessors, (989), 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) [2021-03-26 10:46:58,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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) [2021-03-26 10:46:58,439 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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) [2021-03-26 10:46:58,439 INFO L185 Difference]: Start difference. First operand has 48 places, 40 transitions, 209 flow. Second operand 9 states and 989 transitions. [2021-03-26 10:46:58,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 73 transitions, 477 flow [2021-03-26 10:46:58,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 461 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 10:46:58,442 INFO L241 Difference]: Finished difference. Result has 57 places, 62 transitions, 427 flow [2021-03-26 10:46:58,442 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=427, PETRI_PLACES=57, PETRI_TRANSITIONS=62} [2021-03-26 10:46:58,442 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places. [2021-03-26 10:46:58,442 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:58,442 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 62 transitions, 427 flow [2021-03-26 10:46:58,442 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 62 transitions, 427 flow [2021-03-26 10:46:58,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 62 transitions, 427 flow [2021-03-26 10:46:58,458 INFO L129 PetriNetUnfolder]: 52/199 cut-off events. [2021-03-26 10:46:58,458 INFO L130 PetriNetUnfolder]: For 386/476 co-relation queries the response was YES. [2021-03-26 10:46:58,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 199 events. 52/199 cut-off events. For 386/476 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1020 event pairs, 6 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 644. Up to 73 conditions per place. [2021-03-26 10:46:58,461 INFO L142 LiptonReduction]: Number of co-enabled transitions 936 [2021-03-26 10:46:58,464 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:46:58,464 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:46:58,465 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 10:46:58,466 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 427 flow [2021-03-26 10:46:58,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 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) [2021-03-26 10:46:58,466 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:58,466 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:58,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-03-26 10:46:58,680 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:58,680 INFO L82 PathProgramCache]: Analyzing trace with hash 538907815, now seen corresponding path program 1 times [2021-03-26 10:46:58,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:58,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018095046] [2021-03-26 10:46:58,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:58,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:46:58,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:58,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018095046] [2021-03-26 10:46:58,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042855298] [2021-03-26 10:46:58,730 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 [2021-03-26 10:46:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:58,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 10:46:58,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 10:46:58,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:46:58,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:46:58,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:58,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 10:46:58,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 10:46:58,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:46:58,846 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-03-26 10:46:58,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,847 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 10:46:58,849 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:46:58,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 10:46:58,853 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 10:46:58,854 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:46:58,854 INFO L142 QuantifierPusher]: treesize reduction 12, result has 40.0 percent of original size [2021-03-26 10:46:58,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:58,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:58,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:58,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:58,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 10:46:58,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 10 [2021-03-26 10:46:58,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996276258] [2021-03-26 10:46:58,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:46:58,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:58,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:46:58,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-03-26 10:46:58,863 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 165 [2021-03-26 10:46:58,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 427 flow. Second operand has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2021-03-26 10:46:58,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:58,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 165 [2021-03-26 10:46:58,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:58,994 INFO L129 PetriNetUnfolder]: 124/357 cut-off events. [2021-03-26 10:46:58,994 INFO L130 PetriNetUnfolder]: For 880/1658 co-relation queries the response was YES. [2021-03-26 10:46:58,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1464 conditions, 357 events. 124/357 cut-off events. For 880/1658 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1938 event pairs, 22 based on Foata normal form. 58/375 useless extension candidates. Maximal degree in co-relation 1428. Up to 122 conditions per place. [2021-03-26 10:46:58,997 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 67 selfloop transitions, 29 changer transitions 0/107 dead transitions. [2021-03-26 10:46:58,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 107 transitions, 922 flow [2021-03-26 10:46:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 10:46:58,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 10:46:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1063 transitions. [2021-03-26 10:46:58,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6442424242424243 [2021-03-26 10:46:58,999 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1063 transitions. [2021-03-26 10:46:58,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1063 transitions. [2021-03-26 10:46:58,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:59,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1063 transitions. [2021-03-26 10:46:59,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 106.3) internal successors, (1063), 10 states have internal predecessors, (1063), 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) [2021-03-26 10:46:59,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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) [2021-03-26 10:46:59,003 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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) [2021-03-26 10:46:59,003 INFO L185 Difference]: Start difference. First operand has 57 places, 62 transitions, 427 flow. Second operand 10 states and 1063 transitions. [2021-03-26 10:46:59,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 107 transitions, 922 flow [2021-03-26 10:46:59,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 107 transitions, 847 flow, removed 30 selfloop flow, removed 3 redundant places. [2021-03-26 10:46:59,006 INFO L241 Difference]: Finished difference. Result has 66 places, 72 transitions, 552 flow [2021-03-26 10:46:59,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=552, PETRI_PLACES=66, PETRI_TRANSITIONS=72} [2021-03-26 10:46:59,007 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 21 predicate places. [2021-03-26 10:46:59,007 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:59,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 72 transitions, 552 flow [2021-03-26 10:46:59,007 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 72 transitions, 552 flow [2021-03-26 10:46:59,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 72 transitions, 552 flow [2021-03-26 10:46:59,024 INFO L129 PetriNetUnfolder]: 62/253 cut-off events. [2021-03-26 10:46:59,025 INFO L130 PetriNetUnfolder]: For 1000/1091 co-relation queries the response was YES. [2021-03-26 10:46:59,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 253 events. 62/253 cut-off events. For 1000/1091 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1486 event pairs, 0 based on Foata normal form. 3/214 useless extension candidates. Maximal degree in co-relation 953. Up to 95 conditions per place. [2021-03-26 10:46:59,027 INFO L142 LiptonReduction]: Number of co-enabled transitions 1128 [2021-03-26 10:46:59,068 INFO L154 LiptonReduction]: Checked pairs total: 30 [2021-03-26 10:46:59,068 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:46:59,069 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-26 10:46:59,069 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 71 transitions, 544 flow [2021-03-26 10:46:59,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2021-03-26 10:46:59,069 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:59,069 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:59,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 10:46:59,286 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:59,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:59,287 INFO L82 PathProgramCache]: Analyzing trace with hash -578903415, now seen corresponding path program 2 times [2021-03-26 10:46:59,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:59,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761721336] [2021-03-26 10:46:59,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:59,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:59,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:59,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:59,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:46:59,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:59,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:59,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:59,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:46:59,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:59,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:46:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:46:59,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761721336] [2021-03-26 10:46:59,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:59,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:46:59,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906528185] [2021-03-26 10:46:59,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:46:59,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:59,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:46:59,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:46:59,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 166 [2021-03-26 10:46:59,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 544 flow. Second operand has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2021-03-26 10:46:59,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:59,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 166 [2021-03-26 10:46:59,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:59,450 INFO L129 PetriNetUnfolder]: 123/400 cut-off events. [2021-03-26 10:46:59,450 INFO L130 PetriNetUnfolder]: For 1570/2221 co-relation queries the response was YES. [2021-03-26 10:46:59,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1835 conditions, 400 events. 123/400 cut-off events. For 1570/2221 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2419 event pairs, 9 based on Foata normal form. 65/429 useless extension candidates. Maximal degree in co-relation 1797. Up to 142 conditions per place. [2021-03-26 10:46:59,453 INFO L132 encePairwiseOnDemand]: 150/166 looper letters, 48 selfloop transitions, 61 changer transitions 0/120 dead transitions. [2021-03-26 10:46:59,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 120 transitions, 1090 flow [2021-03-26 10:46:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 10:46:59,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 10:46:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1066 transitions. [2021-03-26 10:46:59,455 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6421686746987951 [2021-03-26 10:46:59,455 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1066 transitions. [2021-03-26 10:46:59,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1066 transitions. [2021-03-26 10:46:59,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:59,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1066 transitions. [2021-03-26 10:46:59,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 106.6) internal successors, (1066), 10 states have internal predecessors, (1066), 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) [2021-03-26 10:46:59,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 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) [2021-03-26 10:46:59,459 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 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) [2021-03-26 10:46:59,459 INFO L185 Difference]: Start difference. First operand has 66 places, 71 transitions, 544 flow. Second operand 10 states and 1066 transitions. [2021-03-26 10:46:59,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 120 transitions, 1090 flow [2021-03-26 10:46:59,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 120 transitions, 989 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-03-26 10:46:59,466 INFO L241 Difference]: Finished difference. Result has 74 places, 101 transitions, 931 flow [2021-03-26 10:46:59,466 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=931, PETRI_PLACES=74, PETRI_TRANSITIONS=101} [2021-03-26 10:46:59,466 INFO L343 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2021-03-26 10:46:59,466 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:59,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 101 transitions, 931 flow [2021-03-26 10:46:59,466 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 101 transitions, 931 flow [2021-03-26 10:46:59,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 101 transitions, 931 flow [2021-03-26 10:46:59,491 INFO L129 PetriNetUnfolder]: 79/334 cut-off events. [2021-03-26 10:46:59,491 INFO L130 PetriNetUnfolder]: For 1535/1809 co-relation queries the response was YES. [2021-03-26 10:46:59,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1601 conditions, 334 events. 79/334 cut-off events. For 1535/1809 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2210 event pairs, 3 based on Foata normal form. 4/302 useless extension candidates. Maximal degree in co-relation 1562. Up to 97 conditions per place. [2021-03-26 10:46:59,495 INFO L142 LiptonReduction]: Number of co-enabled transitions 1566 [2021-03-26 10:46:59,584 INFO L154 LiptonReduction]: Checked pairs total: 51 [2021-03-26 10:46:59,584 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 10:46:59,584 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-03-26 10:46:59,584 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 98 transitions, 917 flow [2021-03-26 10:46:59,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2021-03-26 10:46:59,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:59,585 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2021-03-26 10:46:59,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 10:46:59,585 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:46:59,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:59,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1443590097, now seen corresponding path program 1 times [2021-03-26 10:46:59,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:59,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813482140] [2021-03-26 10:46:59,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:46:59,600 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:46:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:46:59,609 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:46:59,615 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:46:59,615 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:46:59,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 10:46:59,616 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 10:46:59,616 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-26 10:46:59,625 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,626 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,626 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,626 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,626 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,626 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,626 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,626 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,627 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,630 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,634 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,635 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,636 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,636 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,636 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,636 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,637 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,637 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,637 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,637 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,638 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,638 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,638 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,638 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:59,639 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:46:59,639 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 10:46:59,641 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:46:59,641 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:46:59,641 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:46:59,641 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:46:59,641 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:46:59,641 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:46:59,641 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:46:59,641 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:46:59,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 103 transitions, 238 flow [2021-03-26 10:46:59,649 INFO L129 PetriNetUnfolder]: 10/151 cut-off events. [2021-03-26 10:46:59,649 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-26 10:46:59,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 151 events. 10/151 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 314 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2021-03-26 10:46:59,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 103 transitions, 238 flow [2021-03-26 10:46:59,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 103 transitions, 238 flow [2021-03-26 10:46:59,651 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:59,651 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 103 transitions, 238 flow [2021-03-26 10:46:59,651 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 103 transitions, 238 flow [2021-03-26 10:46:59,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 103 transitions, 238 flow [2021-03-26 10:46:59,658 INFO L129 PetriNetUnfolder]: 10/151 cut-off events. [2021-03-26 10:46:59,658 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-26 10:46:59,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 151 events. 10/151 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 305 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2021-03-26 10:46:59,661 INFO L142 LiptonReduction]: Number of co-enabled transitions 4560 [2021-03-26 10:47:00,381 INFO L154 LiptonReduction]: Checked pairs total: 3627 [2021-03-26 10:47:00,381 INFO L156 LiptonReduction]: Total number of compositions: 77 [2021-03-26 10:47:00,381 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 730 [2021-03-26 10:47:00,382 INFO L129 PetriNetUnfolder]: 1/20 cut-off events. [2021-03-26 10:47:00,382 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:47:00,383 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:00,383 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:00,383 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:47:00,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:00,383 INFO L82 PathProgramCache]: Analyzing trace with hash 580356661, now seen corresponding path program 1 times [2021-03-26 10:47:00,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:00,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228943526] [2021-03-26 10:47:00,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:00,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:00,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:47:00,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:00,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:47:00,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:47:00,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228943526] [2021-03-26 10:47:00,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:47:00,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:47:00,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028646819] [2021-03-26 10:47:00,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-26 10:47:00,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:00,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-26 10:47:00,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-26 10:47:00,391 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 180 [2021-03-26 10:47:00,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 130 flow. Second operand has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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) [2021-03-26 10:47:00,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:00,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 180 [2021-03-26 10:47:00,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:00,395 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-03-26 10:47:00,395 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-26 10:47:00,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 72 events. 0/72 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 3/65 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 10:47:00,395 INFO L132 encePairwiseOnDemand]: 177/180 looper letters, 0 selfloop transitions, 0 changer transitions 1/44 dead transitions. [2021-03-26 10:47:00,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 44 transitions, 120 flow [2021-03-26 10:47:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-26 10:47:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-26 10:47:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 307 transitions. [2021-03-26 10:47:00,396 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8527777777777777 [2021-03-26 10:47:00,396 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 307 transitions. [2021-03-26 10:47:00,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 307 transitions. [2021-03-26 10:47:00,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:00,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 307 transitions. [2021-03-26 10:47:00,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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) [2021-03-26 10:47:00,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 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) [2021-03-26 10:47:00,397 INFO L81 ComplementDD]: Finished complementDD. Result 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) [2021-03-26 10:47:00,397 INFO L185 Difference]: Start difference. First operand has 55 places, 49 transitions, 130 flow. Second operand 2 states and 307 transitions. [2021-03-26 10:47:00,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 44 transitions, 120 flow [2021-03-26 10:47:00,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 44 transitions, 108 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-26 10:47:00,398 INFO L241 Difference]: Finished difference. Result has 54 places, 43 transitions, 106 flow [2021-03-26 10:47:00,398 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=106, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2021-03-26 10:47:00,398 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, -1 predicate places. [2021-03-26 10:47:00,398 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:00,398 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 43 transitions, 106 flow [2021-03-26 10:47:00,398 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 43 transitions, 106 flow [2021-03-26 10:47:00,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 43 transitions, 106 flow [2021-03-26 10:47:00,401 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-03-26 10:47:00,401 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 10:47:00,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 71 events. 0/71 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 10:47:00,402 INFO L142 LiptonReduction]: Number of co-enabled transitions 824 [2021-03-26 10:47:01,001 INFO L154 LiptonReduction]: Checked pairs total: 1790 [2021-03-26 10:47:01,002 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-26 10:47:01,002 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 604 [2021-03-26 10:47:01,002 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 82 flow [2021-03-26 10:47:01,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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) [2021-03-26 10:47:01,002 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:01,002 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:01,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 10:47:01,002 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:47:01,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:01,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1165324394, now seen corresponding path program 1 times [2021-03-26 10:47:01,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:01,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193059342] [2021-03-26 10:47:01,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:01,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:47:01,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:01,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:01,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:01,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:47:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:47:01,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193059342] [2021-03-26 10:47:01,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:47:01,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:47:01,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094546390] [2021-03-26 10:47:01,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:47:01,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:01,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:47:01,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:47:01,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 193 [2021-03-26 10:47:01,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2021-03-26 10:47:01,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:01,058 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 193 [2021-03-26 10:47:01,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:01,194 INFO L129 PetriNetUnfolder]: 1006/1616 cut-off events. [2021-03-26 10:47:01,194 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 10:47:01,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3214 conditions, 1616 events. 1006/1616 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 8133 event pairs, 382 based on Foata normal form. 0/1231 useless extension candidates. Maximal degree in co-relation 3185. Up to 839 conditions per place. [2021-03-26 10:47:01,206 INFO L132 encePairwiseOnDemand]: 179/193 looper letters, 44 selfloop transitions, 13 changer transitions 0/69 dead transitions. [2021-03-26 10:47:01,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 69 transitions, 272 flow [2021-03-26 10:47:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:47:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:47:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2021-03-26 10:47:01,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6303972366148531 [2021-03-26 10:47:01,208 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 730 transitions. [2021-03-26 10:47:01,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 730 transitions. [2021-03-26 10:47:01,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:01,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 730 transitions. [2021-03-26 10:47:01,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.66666666666667) internal successors, (730), 6 states have internal predecessors, (730), 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) [2021-03-26 10:47:01,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2021-03-26 10:47:01,212 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2021-03-26 10:47:01,212 INFO L185 Difference]: Start difference. First operand has 40 places, 31 transitions, 82 flow. Second operand 6 states and 730 transitions. [2021-03-26 10:47:01,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 69 transitions, 272 flow [2021-03-26 10:47:01,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 69 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 10:47:01,213 INFO L241 Difference]: Finished difference. Result has 48 places, 43 transitions, 188 flow [2021-03-26 10:47:01,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2021-03-26 10:47:01,214 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, -7 predicate places. [2021-03-26 10:47:01,214 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:01,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 43 transitions, 188 flow [2021-03-26 10:47:01,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 43 transitions, 188 flow [2021-03-26 10:47:01,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 43 transitions, 188 flow [2021-03-26 10:47:01,243 INFO L129 PetriNetUnfolder]: 253/560 cut-off events. [2021-03-26 10:47:01,243 INFO L130 PetriNetUnfolder]: For 197/231 co-relation queries the response was YES. [2021-03-26 10:47:01,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 560 events. 253/560 cut-off events. For 197/231 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3063 event pairs, 156 based on Foata normal form. 0/504 useless extension candidates. Maximal degree in co-relation 1402. Up to 393 conditions per place. [2021-03-26 10:47:01,250 INFO L142 LiptonReduction]: Number of co-enabled transitions 722 [2021-03-26 10:47:01,627 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:47:01,682 INFO L154 LiptonReduction]: Checked pairs total: 573 [2021-03-26 10:47:01,682 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:47:01,682 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 468 [2021-03-26 10:47:01,683 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 186 flow [2021-03-26 10:47:01,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2021-03-26 10:47:01,683 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:01,683 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:01,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 10:47:01,683 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:47:01,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:01,683 INFO L82 PathProgramCache]: Analyzing trace with hash -243908345, now seen corresponding path program 1 times [2021-03-26 10:47:01,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:01,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038481348] [2021-03-26 10:47:01,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:01,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:01,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:01,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:01,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:01,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:01,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:47:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:47:01,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038481348] [2021-03-26 10:47:01,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:47:01,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:47:01,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182920003] [2021-03-26 10:47:01,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:47:01,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:01,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:47:01,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:47:01,714 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 196 [2021-03-26 10:47:01,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 186 flow. Second operand has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2021-03-26 10:47:01,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:01,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 196 [2021-03-26 10:47:01,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:01,921 INFO L129 PetriNetUnfolder]: 1110/1797 cut-off events. [2021-03-26 10:47:01,921 INFO L130 PetriNetUnfolder]: For 1283/8703 co-relation queries the response was YES. [2021-03-26 10:47:01,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5619 conditions, 1797 events. 1110/1797 cut-off events. For 1283/8703 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9386 event pairs, 367 based on Foata normal form. 120/1717 useless extension candidates. Maximal degree in co-relation 5589. Up to 1108 conditions per place. [2021-03-26 10:47:01,938 INFO L132 encePairwiseOnDemand]: 181/196 looper letters, 35 selfloop transitions, 25 changer transitions 0/72 dead transitions. [2021-03-26 10:47:01,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 72 transitions, 426 flow [2021-03-26 10:47:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:47:01,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:47:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2021-03-26 10:47:01,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6335034013605442 [2021-03-26 10:47:01,940 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2021-03-26 10:47:01,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2021-03-26 10:47:01,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:01,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2021-03-26 10:47:01,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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) [2021-03-26 10:47:01,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 196.0) internal successors, (1372), 7 states have internal predecessors, (1372), 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) [2021-03-26 10:47:01,944 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 196.0) internal successors, (1372), 7 states have internal predecessors, (1372), 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) [2021-03-26 10:47:01,944 INFO L185 Difference]: Start difference. First operand has 46 places, 41 transitions, 186 flow. Second operand 6 states and 745 transitions. [2021-03-26 10:47:01,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 72 transitions, 426 flow [2021-03-26 10:47:01,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 72 transitions, 415 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 10:47:01,947 INFO L241 Difference]: Finished difference. Result has 53 places, 54 transitions, 347 flow [2021-03-26 10:47:01,947 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2021-03-26 10:47:01,948 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2021-03-26 10:47:01,948 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:01,948 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 54 transitions, 347 flow [2021-03-26 10:47:01,948 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 54 transitions, 347 flow [2021-03-26 10:47:01,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 54 transitions, 347 flow [2021-03-26 10:47:01,993 INFO L129 PetriNetUnfolder]: 371/762 cut-off events. [2021-03-26 10:47:01,994 INFO L130 PetriNetUnfolder]: For 1148/2646 co-relation queries the response was YES. [2021-03-26 10:47:01,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2703 conditions, 762 events. 371/762 cut-off events. For 1148/2646 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4535 event pairs, 104 based on Foata normal form. 12/675 useless extension candidates. Maximal degree in co-relation 2671. Up to 505 conditions per place. [2021-03-26 10:47:02,004 INFO L142 LiptonReduction]: Number of co-enabled transitions 1020 [2021-03-26 10:47:02,017 INFO L154 LiptonReduction]: Checked pairs total: 207 [2021-03-26 10:47:02,017 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:47:02,017 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-26 10:47:02,017 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 347 flow [2021-03-26 10:47:02,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2021-03-26 10:47:02,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:02,018 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:02,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 10:47:02,018 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:47:02,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:02,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1650575552, now seen corresponding path program 1 times [2021-03-26 10:47:02,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:02,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153216595] [2021-03-26 10:47:02,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:02,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:02,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:47:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:47:02,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153216595] [2021-03-26 10:47:02,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951075703] [2021-03-26 10:47:02,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 10:47:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:02,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-26 10:47:02,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 10:47:02,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:47:02,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 10:47:02,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2021-03-26 10:47:02,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625655947] [2021-03-26 10:47:02,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:47:02,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:02,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:47:02,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-26 10:47:02,154 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 196 [2021-03-26 10:47:02,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 114.83333333333333) internal successors, (689), 6 states have internal predecessors, (689), 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) [2021-03-26 10:47:02,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:02,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 196 [2021-03-26 10:47:02,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:02,304 INFO L129 PetriNetUnfolder]: 838/1377 cut-off events. [2021-03-26 10:47:02,305 INFO L130 PetriNetUnfolder]: For 3571/15224 co-relation queries the response was YES. [2021-03-26 10:47:02,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5453 conditions, 1377 events. 838/1377 cut-off events. For 3571/15224 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6600 event pairs, 178 based on Foata normal form. 120/1396 useless extension candidates. Maximal degree in co-relation 5419. Up to 597 conditions per place. [2021-03-26 10:47:02,318 INFO L132 encePairwiseOnDemand]: 182/196 looper letters, 41 selfloop transitions, 31 changer transitions 0/84 dead transitions. [2021-03-26 10:47:02,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 84 transitions, 659 flow [2021-03-26 10:47:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:47:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:47:02,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 863 transitions. [2021-03-26 10:47:02,321 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6290087463556852 [2021-03-26 10:47:02,321 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 863 transitions. [2021-03-26 10:47:02,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 863 transitions. [2021-03-26 10:47:02,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:02,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 863 transitions. [2021-03-26 10:47:02,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 123.28571428571429) internal successors, (863), 7 states have internal predecessors, (863), 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) [2021-03-26 10:47:02,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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) [2021-03-26 10:47:02,324 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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) [2021-03-26 10:47:02,325 INFO L185 Difference]: Start difference. First operand has 53 places, 54 transitions, 347 flow. Second operand 7 states and 863 transitions. [2021-03-26 10:47:02,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 84 transitions, 659 flow [2021-03-26 10:47:02,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 84 transitions, 630 flow, removed 12 selfloop flow, removed 1 redundant places. [2021-03-26 10:47:02,329 INFO L241 Difference]: Finished difference. Result has 60 places, 65 transitions, 520 flow [2021-03-26 10:47:02,329 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=520, PETRI_PLACES=60, PETRI_TRANSITIONS=65} [2021-03-26 10:47:02,329 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 5 predicate places. [2021-03-26 10:47:02,329 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:02,329 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 65 transitions, 520 flow [2021-03-26 10:47:02,330 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 65 transitions, 520 flow [2021-03-26 10:47:02,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 65 transitions, 520 flow [2021-03-26 10:47:02,361 INFO L129 PetriNetUnfolder]: 260/577 cut-off events. [2021-03-26 10:47:02,361 INFO L130 PetriNetUnfolder]: For 1294/2416 co-relation queries the response was YES. [2021-03-26 10:47:02,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2476 conditions, 577 events. 260/577 cut-off events. For 1294/2416 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3084 event pairs, 34 based on Foata normal form. 25/549 useless extension candidates. Maximal degree in co-relation 2441. Up to 340 conditions per place. [2021-03-26 10:47:02,368 INFO L142 LiptonReduction]: Number of co-enabled transitions 1240 [2021-03-26 10:47:02,380 INFO L154 LiptonReduction]: Checked pairs total: 263 [2021-03-26 10:47:02,380 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:47:02,380 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-26 10:47:02,381 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 65 transitions, 520 flow [2021-03-26 10:47:02,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 114.83333333333333) internal successors, (689), 6 states have internal predecessors, (689), 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) [2021-03-26 10:47:02,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:02,381 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:02,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-03-26 10:47:02,596 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:47:02,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:02,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1212792392, now seen corresponding path program 1 times [2021-03-26 10:47:02,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:02,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310171719] [2021-03-26 10:47:02,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:02,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:02,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:47:02,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:02,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:47:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-03-26 10:47:02,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310171719] [2021-03-26 10:47:02,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759155814] [2021-03-26 10:47:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 10:47:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:02,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 10:47:02,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 10:47:02,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:02,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:02,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:02,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:02,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:47:02,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 10:47:02,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 10 [2021-03-26 10:47:02,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550178294] [2021-03-26 10:47:02,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 10:47:02,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:02,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 10:47:02,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-03-26 10:47:02,785 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 196 [2021-03-26 10:47:02,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 65 transitions, 520 flow. Second operand has 12 states, 12 states have (on average 115.33333333333333) internal successors, (1384), 12 states have internal predecessors, (1384), 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) [2021-03-26 10:47:02,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:02,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 196 [2021-03-26 10:47:02,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:03,062 INFO L129 PetriNetUnfolder]: 770/1252 cut-off events. [2021-03-26 10:47:03,063 INFO L130 PetriNetUnfolder]: For 5145/19307 co-relation queries the response was YES. [2021-03-26 10:47:03,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5710 conditions, 1252 events. 770/1252 cut-off events. For 5145/19307 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5665 event pairs, 36 based on Foata normal form. 118/1272 useless extension candidates. Maximal degree in co-relation 5673. Up to 464 conditions per place. [2021-03-26 10:47:03,073 INFO L132 encePairwiseOnDemand]: 181/196 looper letters, 49 selfloop transitions, 78 changer transitions 0/139 dead transitions. [2021-03-26 10:47:03,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 139 transitions, 1283 flow [2021-03-26 10:47:03,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 10:47:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 10:47:03,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1599 transitions. [2021-03-26 10:47:03,075 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6275510204081632 [2021-03-26 10:47:03,075 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1599 transitions. [2021-03-26 10:47:03,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1599 transitions. [2021-03-26 10:47:03,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:03,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1599 transitions. [2021-03-26 10:47:03,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 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) [2021-03-26 10:47:03,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 196.0) internal successors, (2744), 14 states have internal predecessors, (2744), 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) [2021-03-26 10:47:03,080 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 196.0) internal successors, (2744), 14 states have internal predecessors, (2744), 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) [2021-03-26 10:47:03,080 INFO L185 Difference]: Start difference. First operand has 60 places, 65 transitions, 520 flow. Second operand 13 states and 1599 transitions. [2021-03-26 10:47:03,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 139 transitions, 1283 flow [2021-03-26 10:47:03,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 139 transitions, 1205 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-26 10:47:03,086 INFO L241 Difference]: Finished difference. Result has 71 places, 112 transitions, 1108 flow [2021-03-26 10:47:03,086 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1108, PETRI_PLACES=71, PETRI_TRANSITIONS=112} [2021-03-26 10:47:03,086 INFO L343 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2021-03-26 10:47:03,087 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:03,087 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 112 transitions, 1108 flow [2021-03-26 10:47:03,087 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 112 transitions, 1108 flow [2021-03-26 10:47:03,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 112 transitions, 1108 flow [2021-03-26 10:47:03,124 INFO L129 PetriNetUnfolder]: 326/637 cut-off events. [2021-03-26 10:47:03,124 INFO L130 PetriNetUnfolder]: For 3696/6057 co-relation queries the response was YES. [2021-03-26 10:47:03,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3041 conditions, 637 events. 326/637 cut-off events. For 3696/6057 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3192 event pairs, 2 based on Foata normal form. 5/559 useless extension candidates. Maximal degree in co-relation 3003. Up to 280 conditions per place. [2021-03-26 10:47:03,132 INFO L142 LiptonReduction]: Number of co-enabled transitions 1990 [2021-03-26 10:47:03,176 INFO L154 LiptonReduction]: Checked pairs total: 742 [2021-03-26 10:47:03,176 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:47:03,176 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-26 10:47:03,177 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 112 transitions, 1108 flow [2021-03-26 10:47:03,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 115.33333333333333) internal successors, (1384), 12 states have internal predecessors, (1384), 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) [2021-03-26 10:47:03,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:03,183 INFO L263 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:03,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 10:47:03,399 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 10:47:03,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:03,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1031034037, now seen corresponding path program 1 times [2021-03-26 10:47:03,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:03,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101399879] [2021-03-26 10:47:03,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:47:03,408 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:47:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:47:03,422 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:47:03,428 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:47:03,428 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:47:03,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 10:47:03,428 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 10:47:03,428 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-26 10:47:03,439 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,440 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,441 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,442 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,443 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,444 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,445 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,446 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,447 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,447 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,447 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,447 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,447 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,447 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,447 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,448 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,449 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,449 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,449 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,449 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,449 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,449 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,450 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:47:03,451 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:47:03,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-26 10:47:03,452 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:47:03,452 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:47:03,452 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:47:03,452 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:47:03,452 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:47:03,452 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:47:03,452 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:47:03,452 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:47:03,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 119 transitions, 283 flow [2021-03-26 10:47:03,463 INFO L129 PetriNetUnfolder]: 12/180 cut-off events. [2021-03-26 10:47:03,463 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-26 10:47:03,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 180 events. 12/180 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 388 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 164. Up to 12 conditions per place. [2021-03-26 10:47:03,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 119 transitions, 283 flow [2021-03-26 10:47:03,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 119 transitions, 283 flow [2021-03-26 10:47:03,464 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:03,465 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 119 transitions, 283 flow [2021-03-26 10:47:03,465 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 119 transitions, 283 flow [2021-03-26 10:47:03,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 119 transitions, 283 flow [2021-03-26 10:47:03,476 INFO L129 PetriNetUnfolder]: 12/180 cut-off events. [2021-03-26 10:47:03,476 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-26 10:47:03,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 180 events. 12/180 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 384 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 164. Up to 12 conditions per place. [2021-03-26 10:47:03,479 INFO L142 LiptonReduction]: Number of co-enabled transitions 6900 [2021-03-26 10:47:04,516 INFO L154 LiptonReduction]: Checked pairs total: 7127 [2021-03-26 10:47:04,516 INFO L156 LiptonReduction]: Total number of compositions: 98 [2021-03-26 10:47:04,517 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1053 [2021-03-26 10:47:04,518 INFO L129 PetriNetUnfolder]: 2/24 cut-off events. [2021-03-26 10:47:04,518 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:47:04,518 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:04,518 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:04,518 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:47:04,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:04,519 INFO L82 PathProgramCache]: Analyzing trace with hash -884936876, now seen corresponding path program 1 times [2021-03-26 10:47:04,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:04,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274794734] [2021-03-26 10:47:04,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:04,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:04,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:47:04,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:04,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:04,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:04,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:04,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:04,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:04,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:04,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:47:04,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:47:04,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274794734] [2021-03-26 10:47:04,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:47:04,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:47:04,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299805579] [2021-03-26 10:47:04,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:47:04,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:04,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:47:04,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:47:04,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 217 [2021-03-26 10:47:04,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 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) [2021-03-26 10:47:04,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:04,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 217 [2021-03-26 10:47:04,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:05,820 INFO L129 PetriNetUnfolder]: 12542/17913 cut-off events. [2021-03-26 10:47:05,820 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2021-03-26 10:47:05,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35090 conditions, 17913 events. 12542/17913 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 114118 event pairs, 1672 based on Foata normal form. 1483/14746 useless extension candidates. Maximal degree in co-relation 35004. Up to 8214 conditions per place. [2021-03-26 10:47:05,934 INFO L132 encePairwiseOnDemand]: 200/217 looper letters, 65 selfloop transitions, 17 changer transitions 1/108 dead transitions. [2021-03-26 10:47:05,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 108 transitions, 425 flow [2021-03-26 10:47:05,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:47:05,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:47:05,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 848 transitions. [2021-03-26 10:47:05,935 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6513056835637481 [2021-03-26 10:47:05,935 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 848 transitions. [2021-03-26 10:47:05,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 848 transitions. [2021-03-26 10:47:05,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:05,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 848 transitions. [2021-03-26 10:47:05,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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) [2021-03-26 10:47:05,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 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) [2021-03-26 10:47:05,938 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 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) [2021-03-26 10:47:05,938 INFO L185 Difference]: Start difference. First operand has 62 places, 54 transitions, 153 flow. Second operand 6 states and 848 transitions. [2021-03-26 10:47:05,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 108 transitions, 425 flow [2021-03-26 10:47:05,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 108 transitions, 405 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-26 10:47:05,939 INFO L241 Difference]: Finished difference. Result has 70 places, 65 transitions, 254 flow [2021-03-26 10:47:05,939 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2021-03-26 10:47:05,939 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2021-03-26 10:47:05,939 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:05,939 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 65 transitions, 254 flow [2021-03-26 10:47:05,940 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 65 transitions, 254 flow [2021-03-26 10:47:05,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 254 flow [2021-03-26 10:47:05,997 INFO L129 PetriNetUnfolder]: 495/1107 cut-off events. [2021-03-26 10:47:05,998 INFO L130 PetriNetUnfolder]: For 457/628 co-relation queries the response was YES. [2021-03-26 10:47:06,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2677 conditions, 1107 events. 495/1107 cut-off events. For 457/628 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7087 event pairs, 229 based on Foata normal form. 0/925 useless extension candidates. Maximal degree in co-relation 2638. Up to 698 conditions per place. [2021-03-26 10:47:06,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 1770 [2021-03-26 10:47:06,617 INFO L154 LiptonReduction]: Checked pairs total: 1492 [2021-03-26 10:47:06,617 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-26 10:47:06,617 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 678 [2021-03-26 10:47:06,617 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 234 flow [2021-03-26 10:47:06,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 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) [2021-03-26 10:47:06,618 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:06,618 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:06,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 10:47:06,618 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:47:06,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:06,618 INFO L82 PathProgramCache]: Analyzing trace with hash 911935029, now seen corresponding path program 1 times [2021-03-26 10:47:06,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:06,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010612433] [2021-03-26 10:47:06,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:06,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:06,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:47:06,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:06,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:06,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:06,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:06,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:06,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:06,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:06,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:47:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:47:06,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010612433] [2021-03-26 10:47:06,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:47:06,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:47:06,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013657184] [2021-03-26 10:47:06,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:47:06,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:06,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:47:06,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:47:06,643 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 228 [2021-03-26 10:47:06,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 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) [2021-03-26 10:47:06,644 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:06,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 228 [2021-03-26 10:47:06,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:08,097 INFO L129 PetriNetUnfolder]: 13250/19371 cut-off events. [2021-03-26 10:47:08,097 INFO L130 PetriNetUnfolder]: For 13042/22831 co-relation queries the response was YES. [2021-03-26 10:47:08,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54866 conditions, 19371 events. 13250/19371 cut-off events. For 13042/22831 co-relation queries the response was YES. Maximal size of possible extension queue 1257. Compared 130306 event pairs, 4916 based on Foata normal form. 14/14199 useless extension candidates. Maximal degree in co-relation 47729. Up to 11108 conditions per place. [2021-03-26 10:47:08,348 INFO L132 encePairwiseOnDemand]: 211/228 looper letters, 62 selfloop transitions, 23 changer transitions 0/100 dead transitions. [2021-03-26 10:47:08,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 100 transitions, 585 flow [2021-03-26 10:47:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:47:08,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:47:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2021-03-26 10:47:08,364 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-03-26 10:47:08,364 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 855 transitions. [2021-03-26 10:47:08,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 855 transitions. [2021-03-26 10:47:08,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:08,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 855 transitions. [2021-03-26 10:47:08,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 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) [2021-03-26 10:47:08,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 228.0) internal successors, (1596), 7 states have internal predecessors, (1596), 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) [2021-03-26 10:47:08,368 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 228.0) internal successors, (1596), 7 states have internal predecessors, (1596), 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) [2021-03-26 10:47:08,368 INFO L185 Difference]: Start difference. First operand has 59 places, 55 transitions, 234 flow. Second operand 6 states and 855 transitions. [2021-03-26 10:47:08,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 100 transitions, 585 flow [2021-03-26 10:47:08,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 100 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:47:08,379 INFO L241 Difference]: Finished difference. Result has 65 places, 63 transitions, 356 flow [2021-03-26 10:47:08,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2021-03-26 10:47:08,380 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places. [2021-03-26 10:47:08,380 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:08,380 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 63 transitions, 356 flow [2021-03-26 10:47:08,380 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 63 transitions, 356 flow [2021-03-26 10:47:08,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 63 transitions, 356 flow [2021-03-26 10:47:08,550 INFO L129 PetriNetUnfolder]: 1394/3068 cut-off events. [2021-03-26 10:47:08,550 INFO L130 PetriNetUnfolder]: For 1520/1969 co-relation queries the response was YES. [2021-03-26 10:47:08,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8351 conditions, 3068 events. 1394/3068 cut-off events. For 1520/1969 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 26741 event pairs, 956 based on Foata normal form. 4/2326 useless extension candidates. Maximal degree in co-relation 8316. Up to 1541 conditions per place. [2021-03-26 10:47:08,600 INFO L142 LiptonReduction]: Number of co-enabled transitions 1478 [2021-03-26 10:47:09,643 INFO L154 LiptonReduction]: Checked pairs total: 1463 [2021-03-26 10:47:09,644 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:47:09,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1264 [2021-03-26 10:47:09,644 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 61 transitions, 356 flow [2021-03-26 10:47:09,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 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) [2021-03-26 10:47:09,645 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:09,645 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:09,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-26 10:47:09,645 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:47:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:09,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1139856592, now seen corresponding path program 1 times [2021-03-26 10:47:09,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:09,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485403169] [2021-03-26 10:47:09,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:09,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:09,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:47:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:47:09,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485403169] [2021-03-26 10:47:09,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61908963] [2021-03-26 10:47:09,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 10:47:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:09,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 10:47:09,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 10:47:09,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:09,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:09,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:09,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:09,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:09,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:09,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:09,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:09,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:09,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:09,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:09,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:09,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:09,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:09,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:09,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:09,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:09,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:09,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:09,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:47:09,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:47:09,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:47:09,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:09,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:47:09,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 10:47:09,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 10 [2021-03-26 10:47:09,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732871144] [2021-03-26 10:47:09,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:47:09,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:09,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:47:09,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-03-26 10:47:09,782 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 233 [2021-03-26 10:47:09,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 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) [2021-03-26 10:47:09,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:09,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 233 [2021-03-26 10:47:09,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:11,349 INFO L129 PetriNetUnfolder]: 13468/19429 cut-off events. [2021-03-26 10:47:11,349 INFO L130 PetriNetUnfolder]: For 20188/54697 co-relation queries the response was YES. [2021-03-26 10:47:11,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63526 conditions, 19429 events. 13468/19429 cut-off events. For 20188/54697 co-relation queries the response was YES. Maximal size of possible extension queue 1190. Compared 126777 event pairs, 5710 based on Foata normal form. 720/17416 useless extension candidates. Maximal degree in co-relation 63491. Up to 15264 conditions per place. [2021-03-26 10:47:11,492 INFO L132 encePairwiseOnDemand]: 214/233 looper letters, 49 selfloop transitions, 37 changer transitions 0/101 dead transitions. [2021-03-26 10:47:11,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 101 transitions, 703 flow [2021-03-26 10:47:11,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:47:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:47:11,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1006 transitions. [2021-03-26 10:47:11,494 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6167995095033721 [2021-03-26 10:47:11,494 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1006 transitions. [2021-03-26 10:47:11,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1006 transitions. [2021-03-26 10:47:11,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:11,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1006 transitions. [2021-03-26 10:47:11,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.71428571428572) internal successors, (1006), 7 states have internal predecessors, (1006), 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) [2021-03-26 10:47:11,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 233.0) internal successors, (1864), 8 states have internal predecessors, (1864), 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) [2021-03-26 10:47:11,496 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 233.0) internal successors, (1864), 8 states have internal predecessors, (1864), 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) [2021-03-26 10:47:11,496 INFO L185 Difference]: Start difference. First operand has 63 places, 61 transitions, 356 flow. Second operand 7 states and 1006 transitions. [2021-03-26 10:47:11,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 101 transitions, 703 flow [2021-03-26 10:47:11,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 101 transitions, 679 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 10:47:11,509 INFO L241 Difference]: Finished difference. Result has 69 places, 76 transitions, 559 flow [2021-03-26 10:47:11,509 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=559, PETRI_PLACES=69, PETRI_TRANSITIONS=76} [2021-03-26 10:47:11,509 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2021-03-26 10:47:11,509 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:11,509 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 76 transitions, 559 flow [2021-03-26 10:47:11,509 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 76 transitions, 559 flow [2021-03-26 10:47:11,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 76 transitions, 559 flow [2021-03-26 10:47:11,913 INFO L129 PetriNetUnfolder]: 3028/5454 cut-off events. [2021-03-26 10:47:11,914 INFO L130 PetriNetUnfolder]: For 8912/13550 co-relation queries the response was YES. [2021-03-26 10:47:11,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19907 conditions, 5454 events. 3028/5454 cut-off events. For 8912/13550 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 41924 event pairs, 1160 based on Foata normal form. 33/4321 useless extension candidates. Maximal degree in co-relation 19872. Up to 4307 conditions per place. [2021-03-26 10:47:11,988 INFO L142 LiptonReduction]: Number of co-enabled transitions 1860 [2021-03-26 10:47:20,402 INFO L154 LiptonReduction]: Checked pairs total: 1491 [2021-03-26 10:47:20,402 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:47:20,402 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8893 [2021-03-26 10:47:20,403 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 76 transitions, 559 flow [2021-03-26 10:47:20,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 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) [2021-03-26 10:47:20,403 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:47:20,403 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:47:20,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-03-26 10:47:20,604 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:47:20,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:47:20,604 INFO L82 PathProgramCache]: Analyzing trace with hash 2044396780, now seen corresponding path program 1 times [2021-03-26 10:47:20,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:47:20,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529371865] [2021-03-26 10:47:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:47:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:47:20,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:20,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:20,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:20,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:47:20,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:20,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:47:20,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:47:20,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:47:20,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:47:20,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529371865] [2021-03-26 10:47:20,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:47:20,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:47:20,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189119838] [2021-03-26 10:47:20,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:47:20,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:47:20,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:47:20,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:47:20,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 234 [2021-03-26 10:47:20,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 76 transitions, 559 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2021-03-26 10:47:20,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:47:20,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 234 [2021-03-26 10:47:20,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:47:23,457 INFO L129 PetriNetUnfolder]: 21427/33257 cut-off events. [2021-03-26 10:47:23,458 INFO L130 PetriNetUnfolder]: For 74712/297552 co-relation queries the response was YES. [2021-03-26 10:47:23,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131724 conditions, 33257 events. 21427/33257 cut-off events. For 74712/297552 co-relation queries the response was YES. Maximal size of possible extension queue 2357. Compared 266795 event pairs, 5109 based on Foata normal form. 2060/32271 useless extension candidates. Maximal degree in co-relation 131687. Up to 14425 conditions per place. [2021-03-26 10:47:23,849 INFO L132 encePairwiseOnDemand]: 214/234 looper letters, 59 selfloop transitions, 52 changer transitions 0/126 dead transitions. [2021-03-26 10:47:23,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 126 transitions, 1070 flow [2021-03-26 10:47:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:47:23,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:47:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 880 transitions. [2021-03-26 10:47:23,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6267806267806267 [2021-03-26 10:47:23,850 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 880 transitions. [2021-03-26 10:47:23,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 880 transitions. [2021-03-26 10:47:23,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:47:23,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 880 transitions. [2021-03-26 10:47:23,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.66666666666666) internal successors, (880), 6 states have internal predecessors, (880), 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) [2021-03-26 10:47:23,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 234.0) internal successors, (1638), 7 states have internal predecessors, (1638), 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) [2021-03-26 10:47:23,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 234.0) internal successors, (1638), 7 states have internal predecessors, (1638), 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) [2021-03-26 10:47:23,853 INFO L185 Difference]: Start difference. First operand has 69 places, 76 transitions, 559 flow. Second operand 6 states and 880 transitions. [2021-03-26 10:47:23,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 126 transitions, 1070 flow [2021-03-26 10:47:23,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 126 transitions, 1053 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-26 10:47:23,882 INFO L241 Difference]: Finished difference. Result has 74 places, 96 transitions, 886 flow [2021-03-26 10:47:23,882 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=886, PETRI_PLACES=74, PETRI_TRANSITIONS=96} [2021-03-26 10:47:23,882 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2021-03-26 10:47:23,882 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:47:23,883 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 96 transitions, 886 flow [2021-03-26 10:47:23,883 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 96 transitions, 886 flow [2021-03-26 10:47:23,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 96 transitions, 886 flow [2021-03-26 10:47:24,985 INFO L129 PetriNetUnfolder]: 7740/14294 cut-off events. [2021-03-26 10:47:24,985 INFO L130 PetriNetUnfolder]: For 49897/128425 co-relation queries the response was YES. [2021-03-26 10:47:25,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66120 conditions, 14294 events. 7740/14294 cut-off events. For 49897/128425 co-relation queries the response was YES. Maximal size of possible extension queue 1450. Compared 134207 event pairs, 2403 based on Foata normal form. 13/12280 useless extension candidates. Maximal degree in co-relation 66083. Up to 8594 conditions per place. [2021-03-26 10:47:25,285 INFO L142 LiptonReduction]: Number of co-enabled transitions 2278 [2021-03-26 10:50:18,803 INFO L154 LiptonReduction]: Checked pairs total: 2103 [2021-03-26 10:50:18,803 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:50:18,804 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 174922 [2021-03-26 10:50:18,804 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 96 transitions, 886 flow [2021-03-26 10:50:18,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2021-03-26 10:50:18,804 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:50:18,805 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:50:18,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-26 10:50:18,805 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:50:18,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:50:18,805 INFO L82 PathProgramCache]: Analyzing trace with hash 2044151751, now seen corresponding path program 1 times [2021-03-26 10:50:18,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:50:18,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204568257] [2021-03-26 10:50:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:50:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:50:18,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:50:18,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:50:18,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:50:18,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:50:18,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:50:18,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:50:18,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:50:18,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:50:18,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:50:18,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:50:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:50:18,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204568257] [2021-03-26 10:50:18,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:50:18,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:50:18,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21059882] [2021-03-26 10:50:18,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:50:18,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:50:18,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:50:18,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:50:18,841 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 235 [2021-03-26 10:50:18,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 96 transitions, 886 flow. Second operand has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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) [2021-03-26 10:50:18,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:50:18,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 235 [2021-03-26 10:50:18,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:50:22,641 INFO L129 PetriNetUnfolder]: 25155/39793 cut-off events. [2021-03-26 10:50:22,641 INFO L130 PetriNetUnfolder]: For 160901/553218 co-relation queries the response was YES. [2021-03-26 10:50:22,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196225 conditions, 39793 events. 25155/39793 cut-off events. For 160901/553218 co-relation queries the response was YES. Maximal size of possible extension queue 3033. Compared 337998 event pairs, 8006 based on Foata normal form. 1037/37996 useless extension candidates. Maximal degree in co-relation 196185. Up to 17613 conditions per place. [2021-03-26 10:50:23,071 INFO L132 encePairwiseOnDemand]: 217/235 looper letters, 117 selfloop transitions, 60 changer transitions 0/190 dead transitions. [2021-03-26 10:50:23,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 190 transitions, 1953 flow [2021-03-26 10:50:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 10:50:23,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 10:50:23,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1409 transitions. [2021-03-26 10:50:23,073 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5995744680851064 [2021-03-26 10:50:23,073 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1409 transitions. [2021-03-26 10:50:23,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1409 transitions. [2021-03-26 10:50:23,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:50:23,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1409 transitions. [2021-03-26 10:50:23,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.9) internal successors, (1409), 10 states have internal predecessors, (1409), 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) [2021-03-26 10:50:23,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 235.0) internal successors, (2585), 11 states have internal predecessors, (2585), 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) [2021-03-26 10:50:23,076 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 235.0) internal successors, (2585), 11 states have internal predecessors, (2585), 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) [2021-03-26 10:50:23,076 INFO L185 Difference]: Start difference. First operand has 74 places, 96 transitions, 886 flow. Second operand 10 states and 1409 transitions. [2021-03-26 10:50:23,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 190 transitions, 1953 flow [2021-03-26 10:50:23,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 190 transitions, 1813 flow, removed 54 selfloop flow, removed 2 redundant places. [2021-03-26 10:50:23,214 INFO L241 Difference]: Finished difference. Result has 84 places, 112 transitions, 1115 flow [2021-03-26 10:50:23,215 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1115, PETRI_PLACES=84, PETRI_TRANSITIONS=112} [2021-03-26 10:50:23,215 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2021-03-26 10:50:23,215 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:50:23,215 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 112 transitions, 1115 flow [2021-03-26 10:50:23,215 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 112 transitions, 1115 flow [2021-03-26 10:50:23,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 112 transitions, 1115 flow [2021-03-26 10:50:24,735 INFO L129 PetriNetUnfolder]: 9037/17176 cut-off events. [2021-03-26 10:50:24,736 INFO L130 PetriNetUnfolder]: For 59352/87106 co-relation queries the response was YES. [2021-03-26 10:50:24,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78660 conditions, 17176 events. 9037/17176 cut-off events. For 59352/87106 co-relation queries the response was YES. Maximal size of possible extension queue 1905. Compared 169634 event pairs, 2732 based on Foata normal form. 65/15156 useless extension candidates. Maximal degree in co-relation 78619. Up to 10585 conditions per place. [2021-03-26 10:50:24,966 INFO L142 LiptonReduction]: Number of co-enabled transitions 2686 [2021-03-26 10:52:31,929 INFO L154 LiptonReduction]: Checked pairs total: 2244 [2021-03-26 10:52:31,929 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:52:31,929 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128714 [2021-03-26 10:52:31,930 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 111 transitions, 1107 flow [2021-03-26 10:52:31,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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) [2021-03-26 10:52:31,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:52:31,930 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:52:31,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-26 10:52:31,930 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:52:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:52:31,930 INFO L82 PathProgramCache]: Analyzing trace with hash 2049773601, now seen corresponding path program 2 times [2021-03-26 10:52:31,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:52:31,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919706599] [2021-03-26 10:52:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:52:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:52:31,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:52:31,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:52:31,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:52:31,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:52:31,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:52:31,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:52:31,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:52:31,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:52:31,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:52:31,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:52:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-26 10:52:31,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919706599] [2021-03-26 10:52:31,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:52:31,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:52:31,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433876140] [2021-03-26 10:52:31,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:52:31,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:52:31,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:52:31,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:52:31,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 235 [2021-03-26 10:52:31,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 111 transitions, 1107 flow. Second operand has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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) [2021-03-26 10:52:31,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:52:31,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 235 [2021-03-26 10:52:31,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:52:36,330 INFO L129 PetriNetUnfolder]: 27379/44213 cut-off events. [2021-03-26 10:52:36,330 INFO L130 PetriNetUnfolder]: For 174485/439292 co-relation queries the response was YES. [2021-03-26 10:52:36,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219704 conditions, 44213 events. 27379/44213 cut-off events. For 174485/439292 co-relation queries the response was YES. Maximal size of possible extension queue 3575. Compared 397164 event pairs, 5933 based on Foata normal form. 734/42221 useless extension candidates. Maximal degree in co-relation 219660. Up to 20513 conditions per place. [2021-03-26 10:52:36,823 INFO L132 encePairwiseOnDemand]: 217/235 looper letters, 107 selfloop transitions, 91 changer transitions 0/211 dead transitions. [2021-03-26 10:52:36,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 211 transitions, 2267 flow [2021-03-26 10:52:36,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 10:52:36,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 10:52:36,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1430 transitions. [2021-03-26 10:52:36,825 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6085106382978723 [2021-03-26 10:52:36,825 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1430 transitions. [2021-03-26 10:52:36,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1430 transitions. [2021-03-26 10:52:36,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:52:36,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1430 transitions. [2021-03-26 10:52:36,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 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) [2021-03-26 10:52:36,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 235.0) internal successors, (2585), 11 states have internal predecessors, (2585), 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) [2021-03-26 10:52:36,829 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 235.0) internal successors, (2585), 11 states have internal predecessors, (2585), 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) [2021-03-26 10:52:36,829 INFO L185 Difference]: Start difference. First operand has 84 places, 111 transitions, 1107 flow. Second operand 10 states and 1430 transitions. [2021-03-26 10:52:36,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 211 transitions, 2267 flow [2021-03-26 10:52:37,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 211 transitions, 2074 flow, removed 26 selfloop flow, removed 7 redundant places. [2021-03-26 10:52:37,248 INFO L241 Difference]: Finished difference. Result has 90 places, 138 transitions, 1487 flow [2021-03-26 10:52:37,248 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1487, PETRI_PLACES=90, PETRI_TRANSITIONS=138} [2021-03-26 10:52:37,248 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 28 predicate places. [2021-03-26 10:52:37,248 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:52:37,249 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 138 transitions, 1487 flow [2021-03-26 10:52:37,249 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 138 transitions, 1487 flow [2021-03-26 10:52:37,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 138 transitions, 1487 flow [2021-03-26 10:52:39,163 INFO L129 PetriNetUnfolder]: 10674/20426 cut-off events. [2021-03-26 10:52:39,163 INFO L130 PetriNetUnfolder]: For 104348/174870 co-relation queries the response was YES. [2021-03-26 10:52:39,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108587 conditions, 20426 events. 10674/20426 cut-off events. For 104348/174870 co-relation queries the response was YES. Maximal size of possible extension queue 2370. Compared 209103 event pairs, 3010 based on Foata normal form. 72/18172 useless extension candidates. Maximal degree in co-relation 108542. Up to 12793 conditions per place. [2021-03-26 10:52:39,612 INFO L142 LiptonReduction]: Number of co-enabled transitions 3358 [2021-03-26 10:59:14,001 INFO L154 LiptonReduction]: Checked pairs total: 3109 [2021-03-26 10:59:14,002 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:59:14,002 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 396754 [2021-03-26 10:59:14,002 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 138 transitions, 1487 flow [2021-03-26 10:59:14,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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) [2021-03-26 10:59:14,002 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:59:14,002 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:59:14,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-26 10:59:14,003 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:59:14,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:59:14,003 INFO L82 PathProgramCache]: Analyzing trace with hash -135828840, now seen corresponding path program 1 times [2021-03-26 10:59:14,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:59:14,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126432598] [2021-03-26 10:59:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:59:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:59:14,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:59:14,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:59:14,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 10:59:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:59:14,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126432598] [2021-03-26 10:59:14,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096775186] [2021-03-26 10:59:14,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 10:59:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:59:14,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-26 10:59:14,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 10:59:14,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 10:59:14,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:59:14,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:59:14,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:59:14,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:59:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:59:14,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 10:59:14,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2021-03-26 10:59:14,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782601181] [2021-03-26 10:59:14,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 10:59:14,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:59:14,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 10:59:14,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-03-26 10:59:14,176 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 237 [2021-03-26 10:59:14,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 138 transitions, 1487 flow. Second operand has 13 states, 13 states have (on average 133.23076923076923) internal successors, (1732), 13 states have internal predecessors, (1732), 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) [2021-03-26 10:59:14,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:59:14,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 237 [2021-03-26 10:59:14,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:59:19,022 INFO L129 PetriNetUnfolder]: 25039/41433 cut-off events. [2021-03-26 10:59:19,023 INFO L130 PetriNetUnfolder]: For 227726/662547 co-relation queries the response was YES. [2021-03-26 10:59:19,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229576 conditions, 41433 events. 25039/41433 cut-off events. For 227726/662547 co-relation queries the response was YES. Maximal size of possible extension queue 3059. Compared 376279 event pairs, 3579 based on Foata normal form. 2471/41300 useless extension candidates. Maximal degree in co-relation 229529. Up to 17708 conditions per place. [2021-03-26 10:59:19,509 INFO L132 encePairwiseOnDemand]: 214/237 looper letters, 115 selfloop transitions, 175 changer transitions 0/305 dead transitions. [2021-03-26 10:59:19,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 305 transitions, 3578 flow [2021-03-26 10:59:19,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 10:59:19,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 10:59:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1767 transitions. [2021-03-26 10:59:19,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6213080168776371 [2021-03-26 10:59:19,511 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1767 transitions. [2021-03-26 10:59:19,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1767 transitions. [2021-03-26 10:59:19,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:59:19,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1767 transitions. [2021-03-26 10:59:19,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 147.25) internal successors, (1767), 12 states have internal predecessors, (1767), 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) [2021-03-26 10:59:19,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 237.0) internal successors, (3081), 13 states have internal predecessors, (3081), 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) [2021-03-26 10:59:19,515 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 237.0) internal successors, (3081), 13 states have internal predecessors, (3081), 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) [2021-03-26 10:59:19,515 INFO L185 Difference]: Start difference. First operand has 90 places, 138 transitions, 1487 flow. Second operand 12 states and 1767 transitions. [2021-03-26 10:59:19,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 305 transitions, 3578 flow [2021-03-26 10:59:21,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 305 transitions, 3182 flow, removed 48 selfloop flow, removed 6 redundant places. [2021-03-26 10:59:21,494 INFO L241 Difference]: Finished difference. Result has 101 places, 229 transitions, 2844 flow [2021-03-26 10:59:21,494 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1273, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2844, PETRI_PLACES=101, PETRI_TRANSITIONS=229} [2021-03-26 10:59:21,494 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 39 predicate places. [2021-03-26 10:59:21,494 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:59:21,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 229 transitions, 2844 flow [2021-03-26 10:59:21,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 229 transitions, 2844 flow [2021-03-26 10:59:21,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 229 transitions, 2844 flow [2021-03-26 10:59:23,477 INFO L129 PetriNetUnfolder]: 9878/19852 cut-off events. [2021-03-26 10:59:23,478 INFO L130 PetriNetUnfolder]: For 147609/305548 co-relation queries the response was YES. [2021-03-26 10:59:23,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120944 conditions, 19852 events. 9878/19852 cut-off events. For 147609/305548 co-relation queries the response was YES. Maximal size of possible extension queue 2186. Compared 211251 event pairs, 1824 based on Foata normal form. 226/17966 useless extension candidates. Maximal degree in co-relation 120893. Up to 11147 conditions per place. [2021-03-26 10:59:23,795 INFO L142 LiptonReduction]: Number of co-enabled transitions 5580 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown