/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix044_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 21:19:38,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 21:19:38,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 21:19:38,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 21:19:38,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 21:19:38,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 21:19:38,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 21:19:38,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 21:19:38,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 21:19:38,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 21:19:38,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 21:19:38,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 21:19:38,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 21:19:38,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 21:19:38,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 21:19:38,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 21:19:38,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 21:19:38,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 21:19:38,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 21:19:38,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 21:19:38,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 21:19:38,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 21:19:38,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 21:19:38,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 21:19:38,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 21:19:38,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 21:19:38,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 21:19:38,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 21:19:38,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 21:19:38,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 21:19:38,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 21:19:38,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 21:19:38,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 21:19:38,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 21:19:38,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 21:19:38,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 21:19:38,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 21:19:38,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 21:19:38,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 21:19:38,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 21:19:38,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 21:19:38,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 21:19:39,018 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 21:19:39,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 21:19:39,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 21:19:39,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 21:19:39,023 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 21:19:39,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 21:19:39,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 21:19:39,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 21:19:39,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 21:19:39,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 21:19:39,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 21:19:39,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 21:19:39,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 21:19:39,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 21:19:39,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 21:19:39,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 21:19:39,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 21:19:39,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 21:19:39,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 21:19:39,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 21:19:39,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 21:19:39,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:19:39,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 21:19:39,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 21:19:39,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 21:19:39,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 21:19:39,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 21:19:39,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 21:19:39,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 21:19:39,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 21:19:39,029 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 21:19:39,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 21:19:39,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 21:19:39,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 21:19:39,534 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 21:19:39,535 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 21:19:39,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_tso.opt.i [2021-04-28 21:19:39,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1fed488/3e5782eff5b44ef9aa993fc808dd6063/FLAGd59375719 [2021-04-28 21:19:40,473 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 21:19:40,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_tso.opt.i [2021-04-28 21:19:40,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1fed488/3e5782eff5b44ef9aa993fc808dd6063/FLAGd59375719 [2021-04-28 21:19:40,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1fed488/3e5782eff5b44ef9aa993fc808dd6063 [2021-04-28 21:19:40,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 21:19:40,748 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 21:19:40,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 21:19:40,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 21:19:40,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 21:19:40,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:19:40" (1/1) ... [2021-04-28 21:19:40,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e568b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:40, skipping insertion in model container [2021-04-28 21:19:40,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:19:40" (1/1) ... [2021-04-28 21:19:40,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 21:19:40,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 21:19:41,003 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_tso.opt.i[948,961] [2021-04-28 21:19:41,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:19:41,319 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 21:19:41,336 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_tso.opt.i[948,961] [2021-04-28 21:19:41,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:19:41,540 INFO L208 MainTranslator]: Completed translation [2021-04-28 21:19:41,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41 WrapperNode [2021-04-28 21:19:41,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 21:19:41,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 21:19:41,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 21:19:41,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 21:19:41,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 21:19:41,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 21:19:41,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 21:19:41,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 21:19:41,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... [2021-04-28 21:19:41,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 21:19:41,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 21:19:41,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 21:19:41,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 21:19:41,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:19:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 21:19:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 21:19:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 21:19:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 21:19:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 21:19:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 21:19:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 21:19:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 21:19:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 21:19:41,821 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 21:19:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 21:19:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 21:19:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 21:19:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 21:19:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 21:19:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 21:19:41,825 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 21:19:44,110 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 21:19:44,110 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 21:19:44,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:19:44 BoogieIcfgContainer [2021-04-28 21:19:44,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 21:19:44,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 21:19:44,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 21:19:44,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 21:19:44,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:19:40" (1/3) ... [2021-04-28 21:19:44,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d2811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:19:44, skipping insertion in model container [2021-04-28 21:19:44,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:19:41" (2/3) ... [2021-04-28 21:19:44,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d2811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:19:44, skipping insertion in model container [2021-04-28 21:19:44,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:19:44" (3/3) ... [2021-04-28 21:19:44,122 INFO L111 eAbstractionObserver]: Analyzing ICFG mix044_tso.opt.i [2021-04-28 21:19:44,129 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 21:19:44,135 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 21:19:44,136 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 21:19:44,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,183 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,183 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,184 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,184 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,189 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,189 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,189 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,189 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,189 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,189 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,190 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,190 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,191 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,191 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,195 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,195 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,196 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,196 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,196 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,196 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,199 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,199 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,201 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,202 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,205 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,205 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,208 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,208 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,209 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,209 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,210 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,210 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,210 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,210 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,210 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,211 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:19:44,212 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 21:19:44,237 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 21:19:44,264 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 21:19:44,265 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 21:19:44,265 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 21:19:44,265 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 21:19:44,265 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 21:19:44,265 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 21:19:44,265 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 21:19:44,265 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 21:19:44,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 21:19:44,340 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 21:19:44,341 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:19:44,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:19:44,347 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 21:19:44,354 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-04-28 21:19:44,356 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:44,372 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 21:19:44,377 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 21:19:44,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-04-28 21:19:44,412 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 21:19:44,412 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:19:44,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:19:44,418 INFO L146 LiptonReduction]: Number of co-enabled transitions 2598 [2021-04-28 21:19:48,528 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 21:19:48,652 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:19:49,221 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 21:19:49,409 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:19:50,623 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:19:51,655 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 21:19:54,143 WARN L205 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:19:55,238 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:19:59,221 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:20:00,283 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-04-28 21:20:02,783 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:20:04,039 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:20:05,297 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 21:20:05,851 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:20:08,560 WARN L205 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:20:09,725 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:20:11,001 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 21:20:11,620 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 21:20:14,391 WARN L205 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 21:20:15,693 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 21:20:20,437 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:20:21,105 WARN L205 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:20:24,244 WARN L205 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:20:25,567 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:20:27,021 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:20:27,670 WARN L205 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 21:20:30,685 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:20:32,060 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:20:33,563 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:20:34,950 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2021-04-28 21:20:38,193 WARN L205 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:20:39,600 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:20:41,288 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:20:42,066 WARN L205 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:20:45,550 WARN L205 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:20:47,137 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:20:48,994 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:20:49,098 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:20:49,201 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:20:49,312 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:20:49,786 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:20:49,897 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:20:50,009 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:20:50,123 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:20:51,245 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:20:51,556 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:20:51,761 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:20:53,815 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 21:20:54,666 WARN L205 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:20:58,483 WARN L205 SmtUtils]: Spent 3.81 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:21:00,266 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:21:02,244 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:21:03,156 WARN L205 SmtUtils]: Spent 909.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:21:07,139 WARN L205 SmtUtils]: Spent 3.98 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:21:08,911 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:21:10,954 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:21:11,909 WARN L205 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:21:16,221 WARN L205 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:21:18,160 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:21:18,309 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:21:18,423 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:21:18,536 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:21:18,651 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:21:19,749 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:21:19,871 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:21:19,998 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:21:20,119 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:21:21,959 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:21:22,072 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:21:22,186 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:21:22,300 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:21:23,461 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:21:23,563 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:21:23,666 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:21:24,462 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:21:24,581 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:21:24,710 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:21:24,830 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:21:25,834 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:21:25,996 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:21:26,161 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:21:26,321 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:21:26,462 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:21:26,600 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:21:26,749 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:21:26,902 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:21:27,061 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:27,221 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:27,381 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:27,545 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:27,741 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:21:27,943 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:21:28,141 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:21:28,338 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:21:28,504 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:28,669 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:28,828 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:28,986 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:29,140 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:29,299 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:29,468 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:29,643 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:29,833 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:21:30,020 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:21:30,216 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:21:30,415 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:21:30,606 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:21:30,778 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:21:30,951 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:21:31,142 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:21:31,320 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:31,472 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:31,626 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:31,780 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:32,016 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:21:32,255 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:21:32,487 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:21:32,727 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:21:32,865 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:21:33,004 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:21:33,143 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:21:33,283 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:21:33,502 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:21:33,721 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:21:33,943 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:21:34,161 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:21:34,311 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:34,462 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:34,612 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:34,762 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:34,925 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:35,075 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:35,223 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:35,374 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:35,500 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:21:35,624 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:21:35,750 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:21:35,875 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:21:36,013 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:36,156 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:36,300 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:36,446 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:36,578 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:21:36,710 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:21:36,842 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:21:36,974 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:21:37,130 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:37,280 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:37,431 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:37,581 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:21:37,726 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:37,870 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:38,014 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:38,158 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:21:38,406 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:21:38,647 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:21:38,894 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:21:39,157 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:21:39,411 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:21:39,659 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:21:39,944 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:21:40,223 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:21:40,461 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:40,693 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:40,935 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:41,176 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:41,481 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:21:41,778 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:21:42,093 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:21:42,407 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:21:42,703 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:21:43,001 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:21:43,296 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:21:43,591 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:21:43,804 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:21:44,015 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:21:44,229 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:21:44,443 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:21:44,714 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:21:44,968 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:21:45,242 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:21:45,514 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:21:45,782 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:21:46,051 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:21:46,329 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:21:46,606 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:21:46,873 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:21:47,140 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:21:47,411 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:21:47,675 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:21:47,910 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:48,141 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:48,382 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:48,626 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:48,837 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:21:49,039 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:21:49,242 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:21:49,451 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:21:49,678 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:21:49,911 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:21:50,142 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:21:50,365 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:21:50,603 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:50,842 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:51,081 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:51,326 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:21:51,558 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:21:51,799 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:21:52,050 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:21:52,290 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:21:52,528 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:21:52,726 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:21:52,920 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:21:53,119 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:21:53,459 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:21:53,803 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:21:54,164 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:21:54,518 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:21:54,842 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:21:55,155 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:21:55,490 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:21:55,819 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:21:56,172 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:21:56,515 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:21:56,882 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:21:57,246 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:21:57,587 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:21:57,919 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:21:58,261 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:21:58,596 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:21:59,534 WARN L205 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 21:21:59,950 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 21:22:00,856 WARN L205 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 21:22:01,304 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 21:22:01,648 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:22:01,989 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:22:02,359 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:22:02,716 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:22:03,045 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:22:03,371 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:22:03,722 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:22:04,075 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:22:04,410 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:04,742 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:05,073 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:05,400 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:22:05,768 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:22:06,142 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:22:06,468 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:22:06,801 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:22:07,130 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:22:07,445 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:22:07,791 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:22:08,137 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:22:09,111 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 21:22:09,566 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 21:22:10,492 WARN L205 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 21:22:10,947 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 21:22:11,008 INFO L158 LiptonReduction]: Checked pairs total: 24899 [2021-04-28 21:22:11,008 INFO L160 LiptonReduction]: Total number of compositions: 262 [2021-04-28 21:22:11,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146660 [2021-04-28 21:22:11,047 INFO L129 PetriNetUnfolder]: 2/102 cut-off events. [2021-04-28 21:22:11,047 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:22:11,047 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:22:11,048 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:22:11,049 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:22:11,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:22:11,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1988398300, now seen corresponding path program 1 times [2021-04-28 21:22:11,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:22:11,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2204254] [2021-04-28 21:22:11,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:22:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:22:11,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:11,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:22:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:22:11,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2204254] [2021-04-28 21:22:11,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:22:11,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:22:11,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832149690] [2021-04-28 21:22:11,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:22:11,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:22:11,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:22:11,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:22:11,457 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 379 [2021-04-28 21:22:11,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:11,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:22:11,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 379 [2021-04-28 21:22:11,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:22:12,028 INFO L129 PetriNetUnfolder]: 212/677 cut-off events. [2021-04-28 21:22:12,028 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:22:12,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 677 events. 212/677 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5244 event pairs, 16 based on Foata normal form. 10/308 useless extension candidates. Maximal degree in co-relation 1006. Up to 333 conditions per place. [2021-04-28 21:22:12,035 INFO L132 encePairwiseOnDemand]: 361/379 looper letters, 7 selfloop transitions, 4 changer transitions 102/154 dead transitions. [2021-04-28 21:22:12,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 154 transitions, 418 flow [2021-04-28 21:22:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:22:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:22:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2021-04-28 21:22:12,061 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8469656992084432 [2021-04-28 21:22:12,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2021-04-28 21:22:12,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2021-04-28 21:22:12,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:22:12,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2021-04-28 21:22:12,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:12,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:12,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:12,095 INFO L185 Difference]: Start difference. First operand has 153 places, 142 transitions, 296 flow. Second operand 3 states and 963 transitions. [2021-04-28 21:22:12,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 154 transitions, 418 flow [2021-04-28 21:22:12,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 154 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 21:22:12,104 INFO L241 Difference]: Finished difference. Result has 148 places, 49 transitions, 114 flow [2021-04-28 21:22:12,106 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=148, PETRI_TRANSITIONS=49} [2021-04-28 21:22:12,107 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -5 predicate places. [2021-04-28 21:22:12,107 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:22:12,108 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:22:12,108 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:22:12,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 49 transitions, 114 flow [2021-04-28 21:22:12,116 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2021-04-28 21:22:12,116 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:22:12,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 172 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:22:12,118 INFO L146 LiptonReduction]: Number of co-enabled transitions 1464 [2021-04-28 21:22:12,552 INFO L158 LiptonReduction]: Checked pairs total: 1426 [2021-04-28 21:22:12,552 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:22:12,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 445 [2021-04-28 21:22:12,554 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 114 flow [2021-04-28 21:22:12,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:12,555 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:22:12,556 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:22:12,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:22:12,556 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:22:12,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:22:12,557 INFO L82 PathProgramCache]: Analyzing trace with hash 409763528, now seen corresponding path program 1 times [2021-04-28 21:22:12,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:22:12,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243529013] [2021-04-28 21:22:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:22:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:22:12,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:12,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:22:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:22:12,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243529013] [2021-04-28 21:22:12,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:22:12,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:22:12,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444072760] [2021-04-28 21:22:12,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:22:12,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:22:12,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:22:12,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:22:12,736 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 379 [2021-04-28 21:22:12,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:12,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:22:12,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 379 [2021-04-28 21:22:12,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:22:12,761 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:22:12,762 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:22:12,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 228 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-04-28 21:22:12,763 INFO L132 encePairwiseOnDemand]: 375/379 looper letters, 3 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 21:22:12,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 130 flow [2021-04-28 21:22:12,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:22:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:22:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 838 transitions. [2021-04-28 21:22:12,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7370272647317502 [2021-04-28 21:22:12,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 838 transitions. [2021-04-28 21:22:12,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 838 transitions. [2021-04-28 21:22:12,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:22:12,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 838 transitions. [2021-04-28 21:22:12,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.3333333333333) internal successors, (838), 3 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:12,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:12,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:12,779 INFO L185 Difference]: Start difference. First operand has 60 places, 49 transitions, 114 flow. Second operand 3 states and 838 transitions. [2021-04-28 21:22:12,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 130 flow [2021-04-28 21:22:12,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:22:12,781 INFO L241 Difference]: Finished difference. Result has 61 places, 51 transitions, 125 flow [2021-04-28 21:22:12,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2021-04-28 21:22:12,782 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -92 predicate places. [2021-04-28 21:22:12,782 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:22:12,782 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:22:12,783 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:22:12,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 51 transitions, 125 flow [2021-04-28 21:22:12,792 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:22:12,793 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:22:12,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 247 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 78. Up to 10 conditions per place. [2021-04-28 21:22:12,795 INFO L146 LiptonReduction]: Number of co-enabled transitions 1586 [2021-04-28 21:22:13,774 INFO L158 LiptonReduction]: Checked pairs total: 2304 [2021-04-28 21:22:13,775 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:22:13,775 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 993 [2021-04-28 21:22:13,777 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 125 flow [2021-04-28 21:22:13,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:13,778 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:22:13,778 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:22:13,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:22:13,779 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:22:13,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:22:13,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1422161633, now seen corresponding path program 1 times [2021-04-28 21:22:13,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:22:13,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523222902] [2021-04-28 21:22:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:22:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:22:13,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:13,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:22:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:22:13,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523222902] [2021-04-28 21:22:13,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:22:13,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:22:13,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395411286] [2021-04-28 21:22:13,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:22:13,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:22:13,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:22:13,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:22:13,961 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 380 [2021-04-28 21:22:13,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:13,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:22:13,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 380 [2021-04-28 21:22:13,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:22:13,987 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:22:13,987 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 21:22:13,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 63 events. 3/63 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 232 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 82. Up to 10 conditions per place. [2021-04-28 21:22:13,989 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 1 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2021-04-28 21:22:13,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 51 transitions, 131 flow [2021-04-28 21:22:13,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:22:13,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:22:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 799 transitions. [2021-04-28 21:22:13,994 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7008771929824561 [2021-04-28 21:22:13,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 799 transitions. [2021-04-28 21:22:13,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 799 transitions. [2021-04-28 21:22:13,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:22:13,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 799 transitions. [2021-04-28 21:22:13,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,003 INFO L185 Difference]: Start difference. First operand has 61 places, 51 transitions, 125 flow. Second operand 3 states and 799 transitions. [2021-04-28 21:22:14,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 51 transitions, 131 flow [2021-04-28 21:22:14,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 51 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:22:14,006 INFO L241 Difference]: Finished difference. Result has 63 places, 51 transitions, 130 flow [2021-04-28 21:22:14,006 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2021-04-28 21:22:14,006 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -90 predicate places. [2021-04-28 21:22:14,006 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:22:14,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 51 transitions, 130 flow [2021-04-28 21:22:14,007 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 51 transitions, 130 flow [2021-04-28 21:22:14,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 51 transitions, 130 flow [2021-04-28 21:22:14,017 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:22:14,018 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 21:22:14,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 63 events. 3/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 243 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 81. Up to 10 conditions per place. [2021-04-28 21:22:14,020 INFO L146 LiptonReduction]: Number of co-enabled transitions 1576 [2021-04-28 21:22:14,136 INFO L158 LiptonReduction]: Checked pairs total: 1053 [2021-04-28 21:22:14,136 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:22:14,136 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-04-28 21:22:14,138 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 130 flow [2021-04-28 21:22:14,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,139 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:22:14,139 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:22:14,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:22:14,140 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:22:14,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:22:14,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1354327224, now seen corresponding path program 1 times [2021-04-28 21:22:14,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:22:14,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807800442] [2021-04-28 21:22:14,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:22:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:22:14,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:14,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:22:14,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:14,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:22:14,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:14,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:22:14,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:22:14,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807800442] [2021-04-28 21:22:14,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:22:14,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:22:14,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420502949] [2021-04-28 21:22:14,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:22:14,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:22:14,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:22:14,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:22:14,281 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 380 [2021-04-28 21:22:14,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 238.8) internal successors, (1194), 5 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:22:14,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 380 [2021-04-28 21:22:14,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:22:14,443 INFO L129 PetriNetUnfolder]: 58/193 cut-off events. [2021-04-28 21:22:14,443 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-04-28 21:22:14,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 193 events. 58/193 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 885 event pairs, 34 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 350. Up to 85 conditions per place. [2021-04-28 21:22:14,446 INFO L132 encePairwiseOnDemand]: 373/380 looper letters, 11 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2021-04-28 21:22:14,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 60 transitions, 189 flow [2021-04-28 21:22:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:22:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:22:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 970 transitions. [2021-04-28 21:22:14,453 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6381578947368421 [2021-04-28 21:22:14,454 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 970 transitions. [2021-04-28 21:22:14,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 970 transitions. [2021-04-28 21:22:14,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:22:14,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 970 transitions. [2021-04-28 21:22:14,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 242.5) internal successors, (970), 4 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,500 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,500 INFO L185 Difference]: Start difference. First operand has 63 places, 51 transitions, 130 flow. Second operand 4 states and 970 transitions. [2021-04-28 21:22:14,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 60 transitions, 189 flow [2021-04-28 21:22:14,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 60 transitions, 183 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:22:14,504 INFO L241 Difference]: Finished difference. Result has 66 places, 58 transitions, 183 flow [2021-04-28 21:22:14,505 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2021-04-28 21:22:14,505 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -87 predicate places. [2021-04-28 21:22:14,505 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:22:14,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 58 transitions, 183 flow [2021-04-28 21:22:14,506 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 58 transitions, 183 flow [2021-04-28 21:22:14,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 58 transitions, 183 flow [2021-04-28 21:22:14,525 INFO L129 PetriNetUnfolder]: 10/110 cut-off events. [2021-04-28 21:22:14,525 INFO L130 PetriNetUnfolder]: For 25/28 co-relation queries the response was YES. [2021-04-28 21:22:14,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 110 events. 10/110 cut-off events. For 25/28 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 555 event pairs, 2 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 170. Up to 15 conditions per place. [2021-04-28 21:22:14,529 INFO L146 LiptonReduction]: Number of co-enabled transitions 1914 [2021-04-28 21:22:14,637 INFO L158 LiptonReduction]: Checked pairs total: 894 [2021-04-28 21:22:14,637 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:22:14,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 132 [2021-04-28 21:22:14,639 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 183 flow [2021-04-28 21:22:14,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 238.8) internal successors, (1194), 5 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:14,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:22:14,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:22:14,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:22:14,640 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:22:14,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:22:14,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1826837998, now seen corresponding path program 1 times [2021-04-28 21:22:14,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:22:14,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422900185] [2021-04-28 21:22:14,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:22:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:22:14,728 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 21:22:14,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 21:22:14,802 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-04-28 21:22:14,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-28 21:22:14,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:14,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 21:22:14,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:14,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 21:22:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:22:15,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422900185] [2021-04-28 21:22:15,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:22:15,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:22:15,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383812314] [2021-04-28 21:22:15,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:22:15,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:22:15,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:22:15,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:22:15,010 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 380 [2021-04-28 21:22:15,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:15,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:22:15,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 380 [2021-04-28 21:22:15,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:22:15,333 INFO L129 PetriNetUnfolder]: 54/218 cut-off events. [2021-04-28 21:22:15,334 INFO L130 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2021-04-28 21:22:15,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 218 events. 54/218 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1170 event pairs, 5 based on Foata normal form. 2/134 useless extension candidates. Maximal degree in co-relation 450. Up to 48 conditions per place. [2021-04-28 21:22:15,338 INFO L132 encePairwiseOnDemand]: 371/380 looper letters, 9 selfloop transitions, 19 changer transitions 0/69 dead transitions. [2021-04-28 21:22:15,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 69 transitions, 272 flow [2021-04-28 21:22:15,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:22:15,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:22:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1207 transitions. [2021-04-28 21:22:15,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6352631578947369 [2021-04-28 21:22:15,347 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1207 transitions. [2021-04-28 21:22:15,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1207 transitions. [2021-04-28 21:22:15,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:22:15,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1207 transitions. [2021-04-28 21:22:15,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 241.4) internal successors, (1207), 5 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:15,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:15,360 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:15,361 INFO L185 Difference]: Start difference. First operand has 66 places, 58 transitions, 183 flow. Second operand 5 states and 1207 transitions. [2021-04-28 21:22:15,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 69 transitions, 272 flow [2021-04-28 21:22:15,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 69 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:22:15,364 INFO L241 Difference]: Finished difference. Result has 72 places, 66 transitions, 280 flow [2021-04-28 21:22:15,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=280, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2021-04-28 21:22:15,365 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -81 predicate places. [2021-04-28 21:22:15,365 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:22:15,365 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 66 transitions, 280 flow [2021-04-28 21:22:15,365 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 66 transitions, 280 flow [2021-04-28 21:22:15,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 66 transitions, 280 flow [2021-04-28 21:22:15,405 INFO L129 PetriNetUnfolder]: 37/188 cut-off events. [2021-04-28 21:22:15,405 INFO L130 PetriNetUnfolder]: For 116/119 co-relation queries the response was YES. [2021-04-28 21:22:15,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 188 events. 37/188 cut-off events. For 116/119 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1035 event pairs, 6 based on Foata normal form. 1/105 useless extension candidates. Maximal degree in co-relation 421. Up to 44 conditions per place. [2021-04-28 21:22:15,413 INFO L146 LiptonReduction]: Number of co-enabled transitions 2276 [2021-04-28 21:22:15,455 INFO L158 LiptonReduction]: Checked pairs total: 739 [2021-04-28 21:22:15,455 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:22:15,456 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-04-28 21:22:15,457 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 280 flow [2021-04-28 21:22:15,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:15,458 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:22:15,458 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:22:15,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:22:15,459 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:22:15,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:22:15,459 INFO L82 PathProgramCache]: Analyzing trace with hash 65163209, now seen corresponding path program 1 times [2021-04-28 21:22:15,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:22:15,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813892627] [2021-04-28 21:22:15,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:22:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:22:15,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:15,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:22:15,538 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:22:15,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:22:15,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:15,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:22:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:22:15,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813892627] [2021-04-28 21:22:15,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:22:15,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:22:15,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523901417] [2021-04-28 21:22:15,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:22:15,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:22:15,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:22:15,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:22:15,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:22:15,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:15,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:22:15,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:22:15,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:22:21,869 INFO L129 PetriNetUnfolder]: 25370/37245 cut-off events. [2021-04-28 21:22:21,869 INFO L130 PetriNetUnfolder]: For 2540/2712 co-relation queries the response was YES. [2021-04-28 21:22:22,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76509 conditions, 37245 events. 25370/37245 cut-off events. For 2540/2712 co-relation queries the response was YES. Maximal size of possible extension queue 7830. Compared 336509 event pairs, 13383 based on Foata normal form. 683/10008 useless extension candidates. Maximal degree in co-relation 76491. Up to 23692 conditions per place. [2021-04-28 21:22:22,261 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 35 selfloop transitions, 33 changer transitions 0/110 dead transitions. [2021-04-28 21:22:22,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 110 transitions, 504 flow [2021-04-28 21:22:22,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:22:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:22:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1496 transitions. [2021-04-28 21:22:22,270 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7873684210526316 [2021-04-28 21:22:22,270 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1496 transitions. [2021-04-28 21:22:22,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1496 transitions. [2021-04-28 21:22:22,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:22:22,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1496 transitions. [2021-04-28 21:22:22,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 299.2) internal successors, (1496), 5 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:22,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:22,282 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:22,282 INFO L185 Difference]: Start difference. First operand has 72 places, 66 transitions, 280 flow. Second operand 5 states and 1496 transitions. [2021-04-28 21:22:22,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 110 transitions, 504 flow [2021-04-28 21:22:22,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 110 transitions, 488 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-04-28 21:22:22,305 INFO L241 Difference]: Finished difference. Result has 78 places, 97 transitions, 514 flow [2021-04-28 21:22:22,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=514, PETRI_PLACES=78, PETRI_TRANSITIONS=97} [2021-04-28 21:22:22,305 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -75 predicate places. [2021-04-28 21:22:22,305 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:22:22,306 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 97 transitions, 514 flow [2021-04-28 21:22:22,306 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 97 transitions, 514 flow [2021-04-28 21:22:22,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 97 transitions, 514 flow [2021-04-28 21:22:26,553 INFO L129 PetriNetUnfolder]: 22912/34175 cut-off events. [2021-04-28 21:22:26,554 INFO L130 PetriNetUnfolder]: For 9587/24046 co-relation queries the response was YES. [2021-04-28 21:22:26,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98839 conditions, 34175 events. 22912/34175 cut-off events. For 9587/24046 co-relation queries the response was YES. Maximal size of possible extension queue 7100. Compared 312577 event pairs, 12863 based on Foata normal form. 37/9436 useless extension candidates. Maximal degree in co-relation 98819. Up to 31706 conditions per place. [2021-04-28 21:22:27,220 INFO L146 LiptonReduction]: Number of co-enabled transitions 3538 [2021-04-28 21:22:27,274 INFO L158 LiptonReduction]: Checked pairs total: 1236 [2021-04-28 21:22:27,274 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:22:27,274 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4969 [2021-04-28 21:22:27,277 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 97 transitions, 514 flow [2021-04-28 21:22:27,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:27,278 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:22:27,278 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:22:27,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:22:27,278 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:22:27,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:22:27,279 INFO L82 PathProgramCache]: Analyzing trace with hash -547042687, now seen corresponding path program 1 times [2021-04-28 21:22:27,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:22:27,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189883746] [2021-04-28 21:22:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:22:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:22:27,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:22:27,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:27,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:22:27,455 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:22:27,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:22:27,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:27,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:22:27,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:22:27,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189883746] [2021-04-28 21:22:27,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:22:27,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:22:27,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622799044] [2021-04-28 21:22:27,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:22:27,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:22:27,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:22:27,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:22:27,493 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:22:27,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 97 transitions, 514 flow. Second operand has 5 states, 5 states have (on average 286.8) internal successors, (1434), 5 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:27,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:22:27,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:22:27,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:22:32,577 INFO L129 PetriNetUnfolder]: 27668/43110 cut-off events. [2021-04-28 21:22:32,577 INFO L130 PetriNetUnfolder]: For 16197/133464 co-relation queries the response was YES. [2021-04-28 21:22:32,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165657 conditions, 43110 events. 27668/43110 cut-off events. For 16197/133464 co-relation queries the response was YES. Maximal size of possible extension queue 9573. Compared 414693 event pairs, 5013 based on Foata normal form. 761/13281 useless extension candidates. Maximal degree in co-relation 165635. Up to 39926 conditions per place. [2021-04-28 21:22:32,990 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 36 selfloop transitions, 64 changer transitions 0/142 dead transitions. [2021-04-28 21:22:32,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 142 transitions, 963 flow [2021-04-28 21:22:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:22:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:22:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2098 transitions. [2021-04-28 21:22:33,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7887218045112782 [2021-04-28 21:22:33,010 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2098 transitions. [2021-04-28 21:22:33,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2098 transitions. [2021-04-28 21:22:33,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:22:33,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2098 transitions. [2021-04-28 21:22:33,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 299.7142857142857) internal successors, (2098), 7 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:33,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 380.0) internal successors, (3040), 8 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:33,030 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 380.0) internal successors, (3040), 8 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:33,030 INFO L185 Difference]: Start difference. First operand has 78 places, 97 transitions, 514 flow. Second operand 7 states and 2098 transitions. [2021-04-28 21:22:33,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 142 transitions, 963 flow [2021-04-28 21:22:33,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 142 transitions, 963 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:22:33,133 INFO L241 Difference]: Finished difference. Result has 87 places, 128 transitions, 960 flow [2021-04-28 21:22:33,133 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=960, PETRI_PLACES=87, PETRI_TRANSITIONS=128} [2021-04-28 21:22:33,134 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -66 predicate places. [2021-04-28 21:22:33,134 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:22:33,134 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 128 transitions, 960 flow [2021-04-28 21:22:33,135 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 128 transitions, 960 flow [2021-04-28 21:22:33,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 128 transitions, 960 flow [2021-04-28 21:22:37,460 INFO L129 PetriNetUnfolder]: 25720/40523 cut-off events. [2021-04-28 21:22:37,460 INFO L130 PetriNetUnfolder]: For 68879/128945 co-relation queries the response was YES. [2021-04-28 21:22:37,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191798 conditions, 40523 events. 25720/40523 cut-off events. For 68879/128945 co-relation queries the response was YES. Maximal size of possible extension queue 9164. Compared 401579 event pairs, 5126 based on Foata normal form. 55/11277 useless extension candidates. Maximal degree in co-relation 191773. Up to 38282 conditions per place. [2021-04-28 21:22:38,053 INFO L146 LiptonReduction]: Number of co-enabled transitions 4900 [2021-04-28 21:22:38,144 INFO L158 LiptonReduction]: Checked pairs total: 2268 [2021-04-28 21:22:38,145 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:22:38,145 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5011 [2021-04-28 21:22:38,146 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 128 transitions, 960 flow [2021-04-28 21:22:38,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 286.8) internal successors, (1434), 5 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:38,147 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:22:38,147 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:22:38,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:22:38,147 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:22:38,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:22:38,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1130048447, now seen corresponding path program 1 times [2021-04-28 21:22:38,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:22:38,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913674524] [2021-04-28 21:22:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:22:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:22:38,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:38,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:22:38,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:38,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:22:38,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:22:38,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:22:38,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:22:38,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913674524] [2021-04-28 21:22:38,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:22:38,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:22:38,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908242695] [2021-04-28 21:22:38,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:22:38,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:22:38,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:22:38,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:22:38,238 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 380 [2021-04-28 21:22:38,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 128 transitions, 960 flow. Second operand has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:38,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:22:38,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 380 [2021-04-28 21:22:38,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:22:46,465 INFO L129 PetriNetUnfolder]: 45461/71022 cut-off events. [2021-04-28 21:22:46,465 INFO L130 PetriNetUnfolder]: For 218363/639964 co-relation queries the response was YES. [2021-04-28 21:22:46,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337072 conditions, 71022 events. 45461/71022 cut-off events. For 218363/639964 co-relation queries the response was YES. Maximal size of possible extension queue 13794. Compared 721254 event pairs, 9270 based on Foata normal form. 330/20850 useless extension candidates. Maximal degree in co-relation 337045. Up to 67352 conditions per place. [2021-04-28 21:22:47,144 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 4 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2021-04-28 21:22:47,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 130 transitions, 982 flow [2021-04-28 21:22:47,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:22:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:22:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1055 transitions. [2021-04-28 21:22:47,152 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.694078947368421 [2021-04-28 21:22:47,153 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1055 transitions. [2021-04-28 21:22:47,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1055 transitions. [2021-04-28 21:22:47,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:22:47,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1055 transitions. [2021-04-28 21:22:47,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 263.75) internal successors, (1055), 4 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:47,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:47,163 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:22:47,163 INFO L185 Difference]: Start difference. First operand has 87 places, 128 transitions, 960 flow. Second operand 4 states and 1055 transitions. [2021-04-28 21:22:47,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 130 transitions, 982 flow [2021-04-28 21:22:52,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 130 transitions, 820 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 21:22:52,153 INFO L241 Difference]: Finished difference. Result has 89 places, 129 transitions, 811 flow [2021-04-28 21:22:52,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=811, PETRI_PLACES=89, PETRI_TRANSITIONS=129} [2021-04-28 21:22:52,154 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -64 predicate places. [2021-04-28 21:22:52,154 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:22:52,154 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 129 transitions, 811 flow [2021-04-28 21:22:52,155 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 129 transitions, 811 flow [2021-04-28 21:22:52,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 129 transitions, 811 flow [2021-04-28 21:22:59,389 INFO L129 PetriNetUnfolder]: 45089/70564 cut-off events. [2021-04-28 21:22:59,390 INFO L130 PetriNetUnfolder]: For 79706/88644 co-relation queries the response was YES. [2021-04-28 21:23:00,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313363 conditions, 70564 events. 45089/70564 cut-off events. For 79706/88644 co-relation queries the response was YES. Maximal size of possible extension queue 13424. Compared 732856 event pairs, 9504 based on Foata normal form. 71/20179 useless extension candidates. Maximal degree in co-relation 313337. Up to 59782 conditions per place. [2021-04-28 21:23:00,791 INFO L146 LiptonReduction]: Number of co-enabled transitions 5010 [2021-04-28 21:23:00,914 INFO L158 LiptonReduction]: Checked pairs total: 1827 [2021-04-28 21:23:00,914 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:00,915 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8761 [2021-04-28 21:23:00,916 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 129 transitions, 811 flow [2021-04-28 21:23:00,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:00,917 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:00,917 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:00,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:23:00,917 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:00,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:00,918 INFO L82 PathProgramCache]: Analyzing trace with hash -846086085, now seen corresponding path program 2 times [2021-04-28 21:23:00,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:00,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650266464] [2021-04-28 21:23:00,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:00,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:00,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:23:00,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:00,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:23:00,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650266464] [2021-04-28 21:23:00,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:00,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:23:00,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127588232] [2021-04-28 21:23:00,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:23:00,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:00,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:23:00,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:23:00,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 380 [2021-04-28 21:23:00,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 129 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:00,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:00,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 380 [2021-04-28 21:23:00,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:15,814 INFO L129 PetriNetUnfolder]: 80398/122313 cut-off events. [2021-04-28 21:23:15,814 INFO L130 PetriNetUnfolder]: For 170090/344147 co-relation queries the response was YES. [2021-04-28 21:23:16,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554081 conditions, 122313 events. 80398/122313 cut-off events. For 170090/344147 co-relation queries the response was YES. Maximal size of possible extension queue 23271. Compared 1260382 event pairs, 17397 based on Foata normal form. 577/34785 useless extension candidates. Maximal degree in co-relation 554053. Up to 105652 conditions per place. [2021-04-28 21:23:16,672 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 3 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2021-04-28 21:23:16,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 129 transitions, 823 flow [2021-04-28 21:23:16,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:23:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:23:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2021-04-28 21:23:16,680 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2021-04-28 21:23:16,680 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 840 transitions. [2021-04-28 21:23:16,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 840 transitions. [2021-04-28 21:23:16,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:16,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 840 transitions. [2021-04-28 21:23:16,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:16,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:16,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:16,688 INFO L185 Difference]: Start difference. First operand has 89 places, 129 transitions, 811 flow. Second operand 3 states and 840 transitions. [2021-04-28 21:23:16,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 129 transitions, 823 flow [2021-04-28 21:23:23,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 129 transitions, 822 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:23:23,722 INFO L241 Difference]: Finished difference. Result has 91 places, 129 transitions, 821 flow [2021-04-28 21:23:23,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=91, PETRI_TRANSITIONS=129} [2021-04-28 21:23:23,723 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -62 predicate places. [2021-04-28 21:23:23,723 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:23:23,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 129 transitions, 821 flow [2021-04-28 21:23:23,724 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 129 transitions, 821 flow [2021-04-28 21:23:23,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 129 transitions, 821 flow [2021-04-28 21:23:37,956 INFO L129 PetriNetUnfolder]: 80296/122262 cut-off events. [2021-04-28 21:23:37,957 INFO L130 PetriNetUnfolder]: For 143441/174989 co-relation queries the response was YES. [2021-04-28 21:23:39,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 553887 conditions, 122262 events. 80296/122262 cut-off events. For 143441/174989 co-relation queries the response was YES. Maximal size of possible extension queue 23068. Compared 1285772 event pairs, 17710 based on Foata normal form. 84/34046 useless extension candidates. Maximal degree in co-relation 553860. Up to 105724 conditions per place. [2021-04-28 21:23:40,399 INFO L146 LiptonReduction]: Number of co-enabled transitions 5008 [2021-04-28 21:23:40,598 INFO L158 LiptonReduction]: Checked pairs total: 1827 [2021-04-28 21:23:40,598 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:40,598 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16875 [2021-04-28 21:23:40,599 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 129 transitions, 821 flow [2021-04-28 21:23:40,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:40,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:40,600 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:40,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:23:40,601 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:40,601 INFO L82 PathProgramCache]: Analyzing trace with hash -2138394434, now seen corresponding path program 1 times [2021-04-28 21:23:40,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:40,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213983176] [2021-04-28 21:23:40,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:40,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:40,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:40,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:40,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:40,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:40,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:40,991 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:23:40,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:41,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:41,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:23:41,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:23:41,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213983176] [2021-04-28 21:23:41,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:41,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:23:41,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421777525] [2021-04-28 21:23:41,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:23:41,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:41,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:23:41,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:23:41,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:23:41,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 129 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 286.8333333333333) internal successors, (1721), 6 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:41,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:41,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:23:41,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:59,089 INFO L129 PetriNetUnfolder]: 81316/130395 cut-off events. [2021-04-28 21:23:59,089 INFO L130 PetriNetUnfolder]: For 163262/973505 co-relation queries the response was YES. [2021-04-28 21:23:59,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713600 conditions, 130395 events. 81316/130395 cut-off events. For 163262/973505 co-relation queries the response was YES. Maximal size of possible extension queue 24711. Compared 1447886 event pairs, 2592 based on Foata normal form. 2186/40545 useless extension candidates. Maximal degree in co-relation 713571. Up to 110863 conditions per place. [2021-04-28 21:24:00,142 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 24 selfloop transitions, 95 changer transitions 12/174 dead transitions. [2021-04-28 21:24:00,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 174 transitions, 1479 flow [2021-04-28 21:24:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 21:24:00,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 21:24:00,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2700 transitions. [2021-04-28 21:24:00,154 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7894736842105263 [2021-04-28 21:24:00,154 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2700 transitions. [2021-04-28 21:24:00,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2700 transitions. [2021-04-28 21:24:00,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:24:00,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2700 transitions. [2021-04-28 21:24:00,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 300.0) internal successors, (2700), 9 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:00,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:00,173 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:00,173 INFO L185 Difference]: Start difference. First operand has 91 places, 129 transitions, 821 flow. Second operand 9 states and 2700 transitions. [2021-04-28 21:24:00,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 174 transitions, 1479 flow [2021-04-28 21:24:08,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 174 transitions, 1474 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 21:24:08,870 INFO L241 Difference]: Finished difference. Result has 101 places, 159 transitions, 1393 flow [2021-04-28 21:24:08,871 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1393, PETRI_PLACES=101, PETRI_TRANSITIONS=159} [2021-04-28 21:24:08,871 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -52 predicate places. [2021-04-28 21:24:08,871 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:24:08,871 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 159 transitions, 1393 flow [2021-04-28 21:24:08,872 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 159 transitions, 1393 flow [2021-04-28 21:24:08,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 159 transitions, 1393 flow [2021-04-28 21:24:22,158 INFO L129 PetriNetUnfolder]: 57367/98868 cut-off events. [2021-04-28 21:24:22,158 INFO L130 PetriNetUnfolder]: For 267963/473570 co-relation queries the response was YES. [2021-04-28 21:24:22,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594469 conditions, 98868 events. 57367/98868 cut-off events. For 267963/473570 co-relation queries the response was YES. Maximal size of possible extension queue 22408. Compared 1197079 event pairs, 2727 based on Foata normal form. 34/26768 useless extension candidates. Maximal degree in co-relation 594438. Up to 82378 conditions per place. [2021-04-28 21:24:24,054 INFO L146 LiptonReduction]: Number of co-enabled transitions 5550 [2021-04-28 21:24:24,202 INFO L158 LiptonReduction]: Checked pairs total: 2835 [2021-04-28 21:24:24,203 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:24:24,203 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15332 [2021-04-28 21:24:24,204 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 159 transitions, 1393 flow [2021-04-28 21:24:24,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 286.8333333333333) internal successors, (1721), 6 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:24,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:24:24,205 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:24:24,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 21:24:24,205 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:24:24,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:24:24,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1079246645, now seen corresponding path program 1 times [2021-04-28 21:24:24,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:24:24,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812237658] [2021-04-28 21:24:24,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:24:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:24:24,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:24:24,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:24:24,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:24:24,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:24:24,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:24:24,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:24:24,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:24:24,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:24:24,326 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:24:24,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:24:24,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:24:24,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:24:24,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:24:24,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812237658] [2021-04-28 21:24:24,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:24:24,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 21:24:24,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983413464] [2021-04-28 21:24:24,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:24:24,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:24:24,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:24:24,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:24:24,362 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:24:24,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 159 transitions, 1393 flow. Second operand has 7 states, 7 states have (on average 286.85714285714283) internal successors, (2008), 7 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:24,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:24:24,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:24:24,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:24:40,931 INFO L129 PetriNetUnfolder]: 57826/100695 cut-off events. [2021-04-28 21:24:40,931 INFO L130 PetriNetUnfolder]: For 263564/1570097 co-relation queries the response was YES. [2021-04-28 21:24:41,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 697718 conditions, 100695 events. 57826/100695 cut-off events. For 263564/1570097 co-relation queries the response was YES. Maximal size of possible extension queue 23451. Compared 1214261 event pairs, 0 based on Foata normal form. 1570/29399 useless extension candidates. Maximal degree in co-relation 697685. Up to 82567 conditions per place. [2021-04-28 21:24:42,123 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 6 selfloop transitions, 113 changer transitions 20/182 dead transitions. [2021-04-28 21:24:42,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 182 transitions, 1881 flow [2021-04-28 21:24:42,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 21:24:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 21:24:42,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3278 transitions. [2021-04-28 21:24:42,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7842105263157895 [2021-04-28 21:24:42,136 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3278 transitions. [2021-04-28 21:24:42,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3278 transitions. [2021-04-28 21:24:42,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:24:42,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3278 transitions. [2021-04-28 21:24:42,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 298.0) internal successors, (3278), 11 states have internal predecessors, (3278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:42,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:42,154 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:42,155 INFO L185 Difference]: Start difference. First operand has 101 places, 159 transitions, 1393 flow. Second operand 11 states and 3278 transitions. [2021-04-28 21:24:42,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 182 transitions, 1881 flow [2021-04-28 21:31:14,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 182 transitions, 1538 flow, removed 111 selfloop flow, removed 6 redundant places. [2021-04-28 21:31:14,941 INFO L241 Difference]: Finished difference. Result has 108 places, 159 transitions, 1333 flow [2021-04-28 21:31:14,941 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=1051, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1333, PETRI_PLACES=108, PETRI_TRANSITIONS=159} [2021-04-28 21:31:14,942 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -45 predicate places. [2021-04-28 21:31:14,942 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:31:14,942 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 159 transitions, 1333 flow [2021-04-28 21:31:14,942 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 159 transitions, 1333 flow [2021-04-28 21:31:14,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 159 transitions, 1333 flow [2021-04-28 21:31:21,599 INFO L129 PetriNetUnfolder]: 41278/73749 cut-off events. [2021-04-28 21:31:21,599 INFO L130 PetriNetUnfolder]: For 96871/205951 co-relation queries the response was YES. [2021-04-28 21:31:22,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327246 conditions, 73749 events. 41278/73749 cut-off events. For 96871/205951 co-relation queries the response was YES. Maximal size of possible extension queue 20510. Compared 913274 event pairs, 0 based on Foata normal form. 7/19410 useless extension candidates. Maximal degree in co-relation 327213. Up to 51840 conditions per place. [2021-04-28 21:31:23,235 INFO L146 LiptonReduction]: Number of co-enabled transitions 5444 [2021-04-28 21:31:23,344 INFO L158 LiptonReduction]: Checked pairs total: 2763 [2021-04-28 21:31:23,344 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:31:23,344 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8402 [2021-04-28 21:31:23,345 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 159 transitions, 1333 flow [2021-04-28 21:31:23,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 286.85714285714283) internal successors, (2008), 7 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:31:23,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:31:23,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:31:23,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 21:31:23,346 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:31:23,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:31:23,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1883670465, now seen corresponding path program 1 times [2021-04-28 21:31:23,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:31:23,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195729332] [2021-04-28 21:31:23,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:31:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:31:23,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:31:23,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:31:23,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:31:23,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:31:23,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:31:23,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:31:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:31:23,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195729332] [2021-04-28 21:31:23,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:31:23,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:31:23,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641177874] [2021-04-28 21:31:23,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:31:23,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:31:23,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:31:23,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:31:23,447 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 380 [2021-04-28 21:31:23,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 159 transitions, 1333 flow. Second operand has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:31:23,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:31:23,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 380 [2021-04-28 21:31:23,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand