/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/mix057_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:48:45,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:48:45,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:48:46,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:48:46,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:48:46,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:48:46,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:48:46,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:48:46,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:48:46,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:48:46,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:48:46,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:48:46,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:48:46,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:48:46,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:48:46,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:48:46,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:48:46,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:48:46,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:48:46,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:48:46,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:48:46,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:48:46,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:48:46,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:48:46,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 22:48:46,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 22:48:46,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 22:48:46,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 22:48:46,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 22:48:46,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 22:48:46,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 22:48:46,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 22:48:46,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 22:48:46,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 22:48:46,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 22:48:46,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 22:48:46,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 22:48:46,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 22:48:46,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:48:46,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:48:46,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:48:46,098 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 22:48:46,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:48:46,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:48:46,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:48:46,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:48:46,158 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:48:46,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:48:46,158 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:48:46,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:48:46,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:48:46,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:48:46,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:48:46,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:48:46,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:48:46,161 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:48:46,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:48:46,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:48:46,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:48:46,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:48:46,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:48:46,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:48:46,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:48:46,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:48:46,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:48:46,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:48:46,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:48:46,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:48:46,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:48:46,165 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:48:46,165 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:48:46,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:48:46,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:48:46,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:48:46,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:48:46,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:48:46,653 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:48:46,654 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:48:46,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_tso.opt.i [2021-04-28 22:48:46,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec9ae06b/ef9d56fdab774212a6abed85195306ec/FLAG82ca7a54e [2021-04-28 22:48:47,518 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:48:47,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_tso.opt.i [2021-04-28 22:48:47,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec9ae06b/ef9d56fdab774212a6abed85195306ec/FLAG82ca7a54e [2021-04-28 22:48:47,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec9ae06b/ef9d56fdab774212a6abed85195306ec [2021-04-28 22:48:47,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:48:47,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:48:47,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:48:47,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:48:47,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:48:47,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:48:47" (1/1) ... [2021-04-28 22:48:47,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b17dcc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:47, skipping insertion in model container [2021-04-28 22:48:47,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:48:47" (1/1) ... [2021-04-28 22:48:47,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:48:47,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:48:47,871 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/mix057_tso.opt.i[948,961] [2021-04-28 22:48:48,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:48:48,110 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:48:48,127 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/mix057_tso.opt.i[948,961] [2021-04-28 22:48:48,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:48:48,414 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:48:48,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48 WrapperNode [2021-04-28 22:48:48,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:48:48,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:48:48,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:48:48,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:48:48,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:48:48,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:48:48,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:48:48,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:48:48,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (1/1) ... [2021-04-28 22:48:48,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:48:48,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:48:48,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:48:48,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:48:48,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (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 22:48:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:48:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:48:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:48:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:48:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:48:48,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:48:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:48:48,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:48:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:48:48,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:48:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:48:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:48:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:48:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:48:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:48:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:48:48,739 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 22:48:51,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:48:51,393 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:48:51,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:48:51 BoogieIcfgContainer [2021-04-28 22:48:51,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:48:51,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:48:51,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:48:51,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:48:51,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:48:47" (1/3) ... [2021-04-28 22:48:51,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4512e186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:48:51, skipping insertion in model container [2021-04-28 22:48:51,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:48:48" (2/3) ... [2021-04-28 22:48:51,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4512e186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:48:51, skipping insertion in model container [2021-04-28 22:48:51,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:48:51" (3/3) ... [2021-04-28 22:48:51,406 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_tso.opt.i [2021-04-28 22:48:51,414 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:48:51,420 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:48:51,421 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:48:51,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,464 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,464 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,465 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,465 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,471 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,471 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,471 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,471 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,471 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,473 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,475 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,476 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,476 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,476 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,476 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,476 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,476 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,477 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,477 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,478 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,478 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,478 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,479 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,479 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,481 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,482 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,482 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,482 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,483 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,483 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,483 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,483 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,486 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,486 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,490 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,490 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,493 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,493 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,493 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,494 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,494 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,494 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,494 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,494 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,495 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,495 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,495 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,495 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,497 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,498 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:48:51,499 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:48:51,525 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:48:51,556 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:48:51,556 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:48:51,556 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:48:51,556 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:48:51,556 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:48:51,556 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:48:51,556 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:48:51,557 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:48:51,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:48:51,625 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:48:51,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:48:51,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:48:51,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:48:51,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-04-28 22:48:51,639 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:48:51,656 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:48:51,660 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:48:51,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-04-28 22:48:51,708 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:48:51,708 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:48:51,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:48:51,717 INFO L146 LiptonReduction]: Number of co-enabled transitions 2406 [2021-04-28 22:48:53,426 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:48:53,933 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:48:56,298 WARN L205 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:48:57,317 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:49:00,829 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:49:00,968 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:49:01,551 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:49:01,750 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:49:02,195 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 22:49:05,248 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 22:49:05,800 WARN L205 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:49:06,862 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:49:07,986 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:49:09,122 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:49:09,656 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:49:10,807 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:49:11,972 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:49:13,134 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-04-28 22:49:13,710 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:49:14,871 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:49:16,038 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:49:19,235 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:49:19,851 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:49:21,077 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:49:22,445 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:49:23,080 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:49:23,694 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:49:24,915 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:49:26,150 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:49:26,798 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:49:27,454 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:49:28,715 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:49:30,005 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:49:31,281 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2021-04-28 22:49:31,903 WARN L205 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:49:33,197 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:49:34,506 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:49:38,336 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:49:41,809 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:49:42,497 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:49:43,994 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:49:45,483 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:49:46,233 WARN L205 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:49:46,990 WARN L205 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:49:48,542 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:49:50,106 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:49:50,870 WARN L205 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:49:51,686 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:49:54,743 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2021-04-28 22:49:56,357 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:49:58,481 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:49:58,615 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:49:58,735 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:49:58,858 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:49:58,972 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:49:59,086 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:49:59,204 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:49:59,318 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:50:00,548 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:50:00,661 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:50:00,767 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:50:00,875 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:50:00,988 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:01,101 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:01,213 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:01,327 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:01,440 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:01,553 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:01,665 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:01,779 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:01,893 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:02,007 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:02,132 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:02,242 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:02,669 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:50:02,776 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:50:02,884 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:50:02,992 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:50:03,469 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:50:03,642 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:50:03,810 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:50:03,984 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:50:04,167 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:50:04,350 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:50:04,540 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:50:04,728 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:50:04,841 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:04,955 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:05,069 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:05,183 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:50:06,718 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:50:06,874 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:50:07,030 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:50:07,184 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:50:07,326 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:50:07,468 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:50:07,607 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:50:07,751 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:50:08,221 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:50:08,366 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:50:08,520 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:50:08,675 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:50:08,857 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:50:09,032 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:50:09,203 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:50:09,393 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:50:09,540 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:50:09,685 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:50:09,825 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:50:09,967 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:50:10,100 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:50:10,233 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:50:10,374 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:50:10,515 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:50:10,688 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:50:10,856 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:50:11,023 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:50:11,187 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:50:11,363 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:50:11,555 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:50:11,735 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:50:11,912 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:50:12,064 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:50:12,216 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:50:12,372 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:50:12,524 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:50:12,810 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:13,064 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:13,364 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:13,637 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:13,904 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:14,182 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:14,466 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:14,738 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:14,997 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:15,262 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:15,540 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:15,817 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:16,014 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:50:16,216 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:50:16,416 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:50:16,619 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:50:16,847 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:50:17,074 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:50:17,283 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:50:17,496 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:50:17,718 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:50:17,933 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:50:18,147 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:50:18,358 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:50:18,590 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:50:18,830 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:50:19,081 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:50:19,327 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:50:19,581 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:50:19,835 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:50:20,098 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:50:20,359 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:50:20,597 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:50:20,839 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:50:21,082 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:50:21,334 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:50:21,593 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:50:21,844 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:50:22,107 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:50:22,370 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:50:23,098 WARN L205 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-28 22:50:23,440 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-04-28 22:50:24,171 WARN L205 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-28 22:50:24,525 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-04-28 22:50:25,306 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-04-28 22:50:25,652 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 22:50:26,416 WARN L205 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-04-28 22:50:26,772 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 22:50:27,046 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:27,319 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:27,586 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:27,845 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:50:28,081 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:50:28,316 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:50:28,571 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:50:28,822 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:50:29,018 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:50:29,222 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:50:29,442 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:50:29,646 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:50:29,843 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:50:30,041 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:50:30,223 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:50:30,411 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:50:30,474 INFO L158 LiptonReduction]: Checked pairs total: 22454 [2021-04-28 22:50:30,474 INFO L160 LiptonReduction]: Total number of compositions: 247 [2021-04-28 22:50:30,479 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98841 [2021-04-28 22:50:30,506 INFO L129 PetriNetUnfolder]: 1/92 cut-off events. [2021-04-28 22:50:30,506 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:50:30,507 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:30,508 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:30,508 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:30,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:30,515 INFO L82 PathProgramCache]: Analyzing trace with hash 50815099, now seen corresponding path program 1 times [2021-04-28 22:50:30,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:30,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432145610] [2021-04-28 22:50:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:30,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:30,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:50:30,842 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 22:50:30,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432145610] [2021-04-28 22:50:30,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:30,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:50:30,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145845968] [2021-04-28 22:50:30,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:50:30,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:30,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:50:30,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:50:30,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 359 [2021-04-28 22:50:30,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 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 22:50:30,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:30,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 359 [2021-04-28 22:50:30,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:31,300 INFO L129 PetriNetUnfolder]: 107/453 cut-off events. [2021-04-28 22:50:31,301 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:50:31,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 453 events. 107/453 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3341 event pairs, 15 based on Foata normal form. 6/217 useless extension candidates. Maximal degree in co-relation 606. Up to 157 conditions per place. [2021-04-28 22:50:31,306 INFO L132 encePairwiseOnDemand]: 343/359 looper letters, 7 selfloop transitions, 2 changer transitions 97/146 dead transitions. [2021-04-28 22:50:31,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 146 transitions, 392 flow [2021-04-28 22:50:31,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:50:31,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:50:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 904 transitions. [2021-04-28 22:50:31,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8393686165273909 [2021-04-28 22:50:31,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 904 transitions. [2021-04-28 22:50:31,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 904 transitions. [2021-04-28 22:50:31,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:31,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 904 transitions. [2021-04-28 22:50:31,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 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 22:50:31,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:31,355 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:31,358 INFO L185 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 904 transitions. [2021-04-28 22:50:31,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 146 transitions, 392 flow [2021-04-28 22:50:31,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 146 transitions, 388 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:50:31,367 INFO L241 Difference]: Finished difference. Result has 141 places, 46 transitions, 104 flow [2021-04-28 22:50:31,369 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=141, PETRI_TRANSITIONS=46} [2021-04-28 22:50:31,370 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2021-04-28 22:50:31,370 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:31,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 46 transitions, 104 flow [2021-04-28 22:50:31,371 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 46 transitions, 104 flow [2021-04-28 22:50:31,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 104 flow [2021-04-28 22:50:31,378 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-04-28 22:50:31,379 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:50:31,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 139 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:50:31,380 INFO L146 LiptonReduction]: Number of co-enabled transitions 1278 [2021-04-28 22:50:31,457 INFO L158 LiptonReduction]: Checked pairs total: 1274 [2021-04-28 22:50:31,457 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:31,457 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-04-28 22:50:31,460 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 104 flow [2021-04-28 22:50:31,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 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 22:50:31,461 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:31,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:31,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:50:31,462 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:31,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:31,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1588779353, now seen corresponding path program 1 times [2021-04-28 22:50:31,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:31,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548749140] [2021-04-28 22:50:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:31,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:31,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:50:31,622 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 22:50:31,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548749140] [2021-04-28 22:50:31,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:31,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:50:31,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839366847] [2021-04-28 22:50:31,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:50:31,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:31,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:50:31,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:50:31,628 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 359 [2021-04-28 22:50:31,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 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 22:50:31,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:31,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 359 [2021-04-28 22:50:31,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:31,651 INFO L129 PetriNetUnfolder]: 3/60 cut-off events. [2021-04-28 22:50:31,651 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:50:31,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 60 events. 3/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 207 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-04-28 22:50:31,653 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2021-04-28 22:50:31,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 48 transitions, 120 flow [2021-04-28 22:50:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:50:31,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:50:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 745 transitions. [2021-04-28 22:50:31,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.691736304549675 [2021-04-28 22:50:31,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 745 transitions. [2021-04-28 22:50:31,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 745 transitions. [2021-04-28 22:50:31,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:31,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 745 transitions. [2021-04-28 22:50:31,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:50:31,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:31,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:31,667 INFO L185 Difference]: Start difference. First operand has 57 places, 46 transitions, 104 flow. Second operand 3 states and 745 transitions. [2021-04-28 22:50:31,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 48 transitions, 120 flow [2021-04-28 22:50:31,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:50:31,669 INFO L241 Difference]: Finished difference. Result has 58 places, 48 transitions, 119 flow [2021-04-28 22:50:31,669 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2021-04-28 22:50:31,670 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -88 predicate places. [2021-04-28 22:50:31,670 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:31,670 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:50:31,671 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:50:31,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 119 flow [2021-04-28 22:50:31,680 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2021-04-28 22:50:31,680 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:50:31,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 58 events. 3/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 199 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-04-28 22:50:31,682 INFO L146 LiptonReduction]: Number of co-enabled transitions 1388 [2021-04-28 22:50:32,125 INFO L158 LiptonReduction]: Checked pairs total: 1056 [2021-04-28 22:50:32,125 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:32,125 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 455 [2021-04-28 22:50:32,128 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 119 flow [2021-04-28 22:50:32,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 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 22:50:32,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:32,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:32,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:50:32,129 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:32,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:32,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1370520947, now seen corresponding path program 1 times [2021-04-28 22:50:32,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:32,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123526800] [2021-04-28 22:50:32,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:32,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:32,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:50:32,258 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 22:50:32,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123526800] [2021-04-28 22:50:32,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:32,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:50:32,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86657656] [2021-04-28 22:50:32,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:50:32,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:32,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:50:32,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:50:32,262 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2021-04-28 22:50:32,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 0 states have call successors, (0), 0 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 22:50:32,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:32,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2021-04-28 22:50:32,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:32,328 INFO L129 PetriNetUnfolder]: 10/89 cut-off events. [2021-04-28 22:50:32,328 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-04-28 22:50:32,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 89 events. 10/89 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 360 event pairs, 3 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 127. Up to 19 conditions per place. [2021-04-28 22:50:32,330 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2021-04-28 22:50:32,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:50:32,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:50:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:50:32,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2021-04-28 22:50:32,336 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7000928505106778 [2021-04-28 22:50:32,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2021-04-28 22:50:32,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2021-04-28 22:50:32,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:32,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2021-04-28 22:50:32,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 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 22:50:32,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:32,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:32,344 INFO L185 Difference]: Start difference. First operand has 58 places, 48 transitions, 119 flow. Second operand 3 states and 754 transitions. [2021-04-28 22:50:32,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:50:32,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 50 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:50:32,346 INFO L241 Difference]: Finished difference. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:50:32,346 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2021-04-28 22:50:32,347 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -86 predicate places. [2021-04-28 22:50:32,347 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:32,347 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:50:32,347 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:50:32,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:50:32,360 INFO L129 PetriNetUnfolder]: 7/76 cut-off events. [2021-04-28 22:50:32,360 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-04-28 22:50:32,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 76 events. 7/76 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 318 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 109. Up to 15 conditions per place. [2021-04-28 22:50:32,363 INFO L146 LiptonReduction]: Number of co-enabled transitions 1486 [2021-04-28 22:50:32,523 INFO L158 LiptonReduction]: Checked pairs total: 800 [2021-04-28 22:50:32,523 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:32,523 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 176 [2021-04-28 22:50:32,525 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 135 flow [2021-04-28 22:50:32,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 0 states have call successors, (0), 0 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 22:50:32,526 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:32,526 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:32,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:50:32,527 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:32,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:32,527 INFO L82 PathProgramCache]: Analyzing trace with hash 463518869, now seen corresponding path program 1 times [2021-04-28 22:50:32,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:32,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494368864] [2021-04-28 22:50:32,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:32,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:32,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:50:32,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:32,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:50:32,600 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 22:50:32,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494368864] [2021-04-28 22:50:32,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:32,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:50:32,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329205858] [2021-04-28 22:50:32,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:50:32,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:32,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:50:32,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:50:32,604 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2021-04-28 22:50:32,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 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 22:50:32,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:32,606 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2021-04-28 22:50:32,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:32,639 INFO L129 PetriNetUnfolder]: 4/87 cut-off events. [2021-04-28 22:50:32,640 INFO L130 PetriNetUnfolder]: For 26/61 co-relation queries the response was YES. [2021-04-28 22:50:32,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 87 events. 4/87 cut-off events. For 26/61 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 413 event pairs, 1 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 134. Up to 15 conditions per place. [2021-04-28 22:50:32,641 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2021-04-28 22:50:32,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 147 flow [2021-04-28 22:50:32,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:50:32,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:50:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2021-04-28 22:50:32,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6991643454038997 [2021-04-28 22:50:32,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2021-04-28 22:50:32,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2021-04-28 22:50:32,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:32,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2021-04-28 22:50:32,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 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 22:50:32,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:32,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:32,656 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 135 flow. Second operand 3 states and 753 transitions. [2021-04-28 22:50:32,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 147 flow [2021-04-28 22:50:32,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 50 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:50:32,659 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 143 flow [2021-04-28 22:50:32,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 22:50:32,659 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -84 predicate places. [2021-04-28 22:50:32,659 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:32,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 143 flow [2021-04-28 22:50:32,660 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 143 flow [2021-04-28 22:50:32,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 143 flow [2021-04-28 22:50:32,673 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 22:50:32,674 INFO L130 PetriNetUnfolder]: For 20/27 co-relation queries the response was YES. [2021-04-28 22:50:32,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 78 events. 4/78 cut-off events. For 20/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 334 event pairs, 2 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 114. Up to 13 conditions per place. [2021-04-28 22:50:32,677 INFO L146 LiptonReduction]: Number of co-enabled transitions 1484 [2021-04-28 22:50:32,922 INFO L158 LiptonReduction]: Checked pairs total: 800 [2021-04-28 22:50:32,922 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:32,922 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 263 [2021-04-28 22:50:32,925 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 143 flow [2021-04-28 22:50:32,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 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 22:50:32,926 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:32,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:32,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:50:32,926 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:32,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:32,927 INFO L82 PathProgramCache]: Analyzing trace with hash 463520822, now seen corresponding path program 1 times [2021-04-28 22:50:32,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:32,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794139044] [2021-04-28 22:50:32,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:33,015 INFO L142 QuantifierPusher]: treesize reduction 10, result has 52.4 percent of original size [2021-04-28 22:50:33,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:50:33,033 INFO L142 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size [2021-04-28 22:50:33,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 22:50:33,047 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 22:50:33,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794139044] [2021-04-28 22:50:33,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:33,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:50:33,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556156420] [2021-04-28 22:50:33,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:50:33,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:33,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:50:33,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:50:33,051 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 359 [2021-04-28 22:50:33,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 228.75) internal successors, (915), 4 states have internal predecessors, (915), 0 states have call successors, (0), 0 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 22:50:33,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:33,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 359 [2021-04-28 22:50:33,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:33,191 INFO L129 PetriNetUnfolder]: 91/332 cut-off events. [2021-04-28 22:50:33,191 INFO L130 PetriNetUnfolder]: For 242/310 co-relation queries the response was YES. [2021-04-28 22:50:33,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 332 events. 91/332 cut-off events. For 242/310 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2103 event pairs, 24 based on Foata normal form. 9/230 useless extension candidates. Maximal degree in co-relation 630. Up to 125 conditions per place. [2021-04-28 22:50:33,197 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 8 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2021-04-28 22:50:33,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 53 transitions, 169 flow [2021-04-28 22:50:33,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:50:33,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:50:33,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 695 transitions. [2021-04-28 22:50:33,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6453110492107706 [2021-04-28 22:50:33,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 695 transitions. [2021-04-28 22:50:33,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 695 transitions. [2021-04-28 22:50:33,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:33,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 695 transitions. [2021-04-28 22:50:33,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:50:33,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:33,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:50:33,210 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 143 flow. Second operand 3 states and 695 transitions. [2021-04-28 22:50:33,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 53 transitions, 169 flow [2021-04-28 22:50:33,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 164 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:50:33,214 INFO L241 Difference]: Finished difference. Result has 64 places, 50 transitions, 146 flow [2021-04-28 22:50:33,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2021-04-28 22:50:33,214 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -82 predicate places. [2021-04-28 22:50:33,215 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:33,215 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 50 transitions, 146 flow [2021-04-28 22:50:33,215 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 50 transitions, 146 flow [2021-04-28 22:50:33,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 50 transitions, 146 flow [2021-04-28 22:50:33,228 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 22:50:33,228 INFO L130 PetriNetUnfolder]: For 23/28 co-relation queries the response was YES. [2021-04-28 22:50:33,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 78 events. 4/78 cut-off events. For 23/28 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 336 event pairs, 2 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 119. Up to 13 conditions per place. [2021-04-28 22:50:33,231 INFO L146 LiptonReduction]: Number of co-enabled transitions 1480 [2021-04-28 22:50:33,565 INFO L158 LiptonReduction]: Checked pairs total: 730 [2021-04-28 22:50:33,566 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:33,566 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 351 [2021-04-28 22:50:33,568 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 146 flow [2021-04-28 22:50:33,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 228.75) internal successors, (915), 4 states have internal predecessors, (915), 0 states have call successors, (0), 0 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 22:50:33,569 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:33,569 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:33,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:50:33,570 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:33,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:33,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1484232164, now seen corresponding path program 1 times [2021-04-28 22:50:33,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:33,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995581367] [2021-04-28 22:50:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:33,658 INFO L142 QuantifierPusher]: treesize reduction 15, result has 53.1 percent of original size [2021-04-28 22:50:33,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:50:33,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-04-28 22:50:33,694 INFO L147 QuantifierPusher]: treesize reduction 8, result has 57.9 percent of original size 11 [2021-04-28 22:50:33,724 INFO L142 QuantifierPusher]: treesize reduction 16, result has 48.4 percent of original size [2021-04-28 22:50:33,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 22:50:33,746 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 22:50:33,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995581367] [2021-04-28 22:50:33,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:33,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:50:33,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385292333] [2021-04-28 22:50:33,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:50:33,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:33,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:50:33,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:50:33,750 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 359 [2021-04-28 22:50:33,752 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 0 states have call successors, (0), 0 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 22:50:33,752 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:33,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 359 [2021-04-28 22:50:33,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:33,909 INFO L129 PetriNetUnfolder]: 72/311 cut-off events. [2021-04-28 22:50:33,910 INFO L130 PetriNetUnfolder]: For 247/292 co-relation queries the response was YES. [2021-04-28 22:50:33,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 311 events. 72/311 cut-off events. For 247/292 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2046 event pairs, 10 based on Foata normal form. 9/211 useless extension candidates. Maximal degree in co-relation 592. Up to 81 conditions per place. [2021-04-28 22:50:33,915 INFO L132 encePairwiseOnDemand]: 354/359 looper letters, 10 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2021-04-28 22:50:33,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 57 transitions, 188 flow [2021-04-28 22:50:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:50:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:50:33,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 915 transitions. [2021-04-28 22:50:33,920 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6371866295264624 [2021-04-28 22:50:33,921 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 915 transitions. [2021-04-28 22:50:33,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 915 transitions. [2021-04-28 22:50:33,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:33,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 915 transitions. [2021-04-28 22:50:33,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 228.75) internal successors, (915), 4 states have internal predecessors, (915), 0 states have call successors, (0), 0 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 22:50:33,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 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 22:50:33,929 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 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 22:50:33,930 INFO L185 Difference]: Start difference. First operand has 64 places, 50 transitions, 146 flow. Second operand 4 states and 915 transitions. [2021-04-28 22:50:33,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 57 transitions, 188 flow [2021-04-28 22:50:33,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 57 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:50:33,933 INFO L241 Difference]: Finished difference. Result has 66 places, 52 transitions, 163 flow [2021-04-28 22:50:33,933 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2021-04-28 22:50:33,933 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -80 predicate places. [2021-04-28 22:50:33,933 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:33,933 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 52 transitions, 163 flow [2021-04-28 22:50:33,934 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 52 transitions, 163 flow [2021-04-28 22:50:33,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 52 transitions, 163 flow [2021-04-28 22:50:33,958 INFO L129 PetriNetUnfolder]: 20/144 cut-off events. [2021-04-28 22:50:33,959 INFO L130 PetriNetUnfolder]: For 106/117 co-relation queries the response was YES. [2021-04-28 22:50:33,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 144 events. 20/144 cut-off events. For 106/117 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 763 event pairs, 11 based on Foata normal form. 1/84 useless extension candidates. Maximal degree in co-relation 276. Up to 33 conditions per place. [2021-04-28 22:50:33,963 INFO L146 LiptonReduction]: Number of co-enabled transitions 1578 [2021-04-28 22:50:34,099 INFO L158 LiptonReduction]: Checked pairs total: 320 [2021-04-28 22:50:34,100 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:34,100 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-04-28 22:50:34,102 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 163 flow [2021-04-28 22:50:34,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 0 states have call successors, (0), 0 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 22:50:34,102 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:34,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:34,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:50:34,103 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:34,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:34,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1119152133, now seen corresponding path program 1 times [2021-04-28 22:50:34,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:34,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842573605] [2021-04-28 22:50:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:34,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:34,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:50:34,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:34,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:50:34,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:34,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:50:34,255 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-04-28 22:50:34,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 22:50:34,304 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-04-28 22:50:34,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 22:50:34,347 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 22:50:34,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842573605] [2021-04-28 22:50:34,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:34,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:50:34,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096870692] [2021-04-28 22:50:34,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:50:34,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:34,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:50:34,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:50:34,351 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 359 [2021-04-28 22:50:34,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 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 22:50:34,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:34,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 359 [2021-04-28 22:50:34,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:34,557 INFO L129 PetriNetUnfolder]: 87/362 cut-off events. [2021-04-28 22:50:34,557 INFO L130 PetriNetUnfolder]: For 261/288 co-relation queries the response was YES. [2021-04-28 22:50:34,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 362 events. 87/362 cut-off events. For 261/288 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2515 event pairs, 10 based on Foata normal form. 5/247 useless extension candidates. Maximal degree in co-relation 798. Up to 117 conditions per place. [2021-04-28 22:50:34,563 INFO L132 encePairwiseOnDemand]: 352/359 looper letters, 11 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2021-04-28 22:50:34,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 62 transitions, 237 flow [2021-04-28 22:50:34,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:50:34,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:50:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1097 transitions. [2021-04-28 22:50:34,569 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6111420612813371 [2021-04-28 22:50:34,570 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1097 transitions. [2021-04-28 22:50:34,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1097 transitions. [2021-04-28 22:50:34,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:34,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1097 transitions. [2021-04-28 22:50:34,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 219.4) internal successors, (1097), 5 states have internal predecessors, (1097), 0 states have call successors, (0), 0 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 22:50:34,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 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 22:50:34,578 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 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 22:50:34,578 INFO L185 Difference]: Start difference. First operand has 66 places, 52 transitions, 163 flow. Second operand 5 states and 1097 transitions. [2021-04-28 22:50:34,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 62 transitions, 237 flow [2021-04-28 22:50:34,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 229 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:50:34,582 INFO L241 Difference]: Finished difference. Result has 71 places, 58 transitions, 219 flow [2021-04-28 22:50:34,583 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=71, PETRI_TRANSITIONS=58} [2021-04-28 22:50:34,583 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -75 predicate places. [2021-04-28 22:50:34,583 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:34,583 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 58 transitions, 219 flow [2021-04-28 22:50:34,583 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 58 transitions, 219 flow [2021-04-28 22:50:34,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 58 transitions, 219 flow [2021-04-28 22:50:34,638 INFO L129 PetriNetUnfolder]: 53/273 cut-off events. [2021-04-28 22:50:34,638 INFO L130 PetriNetUnfolder]: For 281/294 co-relation queries the response was YES. [2021-04-28 22:50:34,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 273 events. 53/273 cut-off events. For 281/294 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1812 event pairs, 11 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 651. Up to 81 conditions per place. [2021-04-28 22:50:34,648 INFO L146 LiptonReduction]: Number of co-enabled transitions 1856 [2021-04-28 22:50:34,653 INFO L158 LiptonReduction]: Checked pairs total: 310 [2021-04-28 22:50:34,654 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:34,654 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-04-28 22:50:34,656 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 58 transitions, 219 flow [2021-04-28 22:50:34,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 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 22:50:34,657 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:34,657 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:34,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:50:34,657 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:34,658 INFO L82 PathProgramCache]: Analyzing trace with hash -75668667, now seen corresponding path program 2 times [2021-04-28 22:50:34,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:34,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376616334] [2021-04-28 22:50:34,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:34,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:34,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:50:34,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:34,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:50:34,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:34,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:50:34,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:34,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:50:34,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:34,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:50:34,960 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 22:50:34,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376616334] [2021-04-28 22:50:34,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:34,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:50:34,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632321373] [2021-04-28 22:50:34,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:50:34,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:34,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:50:34,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:50:34,965 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 359 [2021-04-28 22:50:34,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 58 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 217.85714285714286) internal successors, (1525), 7 states have internal predecessors, (1525), 0 states have call successors, (0), 0 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 22:50:34,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:34,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 359 [2021-04-28 22:50:34,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:35,277 INFO L129 PetriNetUnfolder]: 80/342 cut-off events. [2021-04-28 22:50:35,277 INFO L130 PetriNetUnfolder]: For 338/370 co-relation queries the response was YES. [2021-04-28 22:50:35,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 342 events. 80/342 cut-off events. For 338/370 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2335 event pairs, 6 based on Foata normal form. 9/237 useless extension candidates. Maximal degree in co-relation 880. Up to 79 conditions per place. [2021-04-28 22:50:35,283 INFO L132 encePairwiseOnDemand]: 352/359 looper letters, 9 selfloop transitions, 10 changer transitions 0/62 dead transitions. [2021-04-28 22:50:35,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 62 transitions, 275 flow [2021-04-28 22:50:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:50:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:50:35,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1102 transitions. [2021-04-28 22:50:35,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6139275766016713 [2021-04-28 22:50:35,290 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1102 transitions. [2021-04-28 22:50:35,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1102 transitions. [2021-04-28 22:50:35,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:35,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1102 transitions. [2021-04-28 22:50:35,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 220.4) internal successors, (1102), 5 states have internal predecessors, (1102), 0 states have call successors, (0), 0 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 22:50:35,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 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 22:50:35,300 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 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 22:50:35,300 INFO L185 Difference]: Start difference. First operand has 71 places, 58 transitions, 219 flow. Second operand 5 states and 1102 transitions. [2021-04-28 22:50:35,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 62 transitions, 275 flow [2021-04-28 22:50:35,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 62 transitions, 269 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:50:35,305 INFO L241 Difference]: Finished difference. Result has 75 places, 58 transitions, 241 flow [2021-04-28 22:50:35,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=241, PETRI_PLACES=75, PETRI_TRANSITIONS=58} [2021-04-28 22:50:35,305 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -71 predicate places. [2021-04-28 22:50:35,306 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:35,306 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 58 transitions, 241 flow [2021-04-28 22:50:35,306 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 58 transitions, 241 flow [2021-04-28 22:50:35,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 58 transitions, 241 flow [2021-04-28 22:50:35,347 INFO L129 PetriNetUnfolder]: 40/242 cut-off events. [2021-04-28 22:50:35,347 INFO L130 PetriNetUnfolder]: For 242/252 co-relation queries the response was YES. [2021-04-28 22:50:35,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 242 events. 40/242 cut-off events. For 242/252 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1538 event pairs, 10 based on Foata normal form. 1/150 useless extension candidates. Maximal degree in co-relation 577. Up to 59 conditions per place. [2021-04-28 22:50:35,356 INFO L146 LiptonReduction]: Number of co-enabled transitions 1854 [2021-04-28 22:50:35,361 INFO L158 LiptonReduction]: Checked pairs total: 306 [2021-04-28 22:50:35,361 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:35,361 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-04-28 22:50:35,363 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 58 transitions, 241 flow [2021-04-28 22:50:35,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 217.85714285714286) internal successors, (1525), 7 states have internal predecessors, (1525), 0 states have call successors, (0), 0 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 22:50:35,364 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:35,365 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:35,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:50:35,365 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:35,365 INFO L82 PathProgramCache]: Analyzing trace with hash 867729919, now seen corresponding path program 1 times [2021-04-28 22:50:35,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:35,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396861482] [2021-04-28 22:50:35,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:35,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:35,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:50:35,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:35,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:50:35,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:35,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:50:35,451 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 22:50:35,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396861482] [2021-04-28 22:50:35,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:35,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:50:35,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069776951] [2021-04-28 22:50:35,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:50:35,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:35,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:50:35,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:50:35,455 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:50:35,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 58 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 267.75) internal successors, (1071), 4 states have internal predecessors, (1071), 0 states have call successors, (0), 0 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 22:50:35,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:35,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:50:35,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:43,677 INFO L129 PetriNetUnfolder]: 38095/55599 cut-off events. [2021-04-28 22:50:43,677 INFO L130 PetriNetUnfolder]: For 7305/9587 co-relation queries the response was YES. [2021-04-28 22:50:43,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115390 conditions, 55599 events. 38095/55599 cut-off events. For 7305/9587 co-relation queries the response was YES. Maximal size of possible extension queue 10344. Compared 502261 event pairs, 18714 based on Foata normal form. 1139/15806 useless extension candidates. Maximal degree in co-relation 115369. Up to 35803 conditions per place. [2021-04-28 22:50:44,273 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 34 selfloop transitions, 32 changer transitions 0/101 dead transitions. [2021-04-28 22:50:44,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 101 transitions, 459 flow [2021-04-28 22:50:44,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:50:44,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:50:44,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1401 transitions. [2021-04-28 22:50:44,281 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7805013927576602 [2021-04-28 22:50:44,281 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1401 transitions. [2021-04-28 22:50:44,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1401 transitions. [2021-04-28 22:50:44,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:44,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1401 transitions. [2021-04-28 22:50:44,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 280.2) internal successors, (1401), 5 states have internal predecessors, (1401), 0 states have call successors, (0), 0 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 22:50:44,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 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 22:50:44,292 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 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 22:50:44,292 INFO L185 Difference]: Start difference. First operand has 75 places, 58 transitions, 241 flow. Second operand 5 states and 1401 transitions. [2021-04-28 22:50:44,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 101 transitions, 459 flow [2021-04-28 22:50:44,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 101 transitions, 437 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-04-28 22:50:44,313 INFO L241 Difference]: Finished difference. Result has 78 places, 88 transitions, 461 flow [2021-04-28 22:50:44,313 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=461, PETRI_PLACES=78, PETRI_TRANSITIONS=88} [2021-04-28 22:50:44,313 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -68 predicate places. [2021-04-28 22:50:44,314 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:44,314 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 88 transitions, 461 flow [2021-04-28 22:50:44,314 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 88 transitions, 461 flow [2021-04-28 22:50:44,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 88 transitions, 461 flow [2021-04-28 22:50:48,768 INFO L129 PetriNetUnfolder]: 32122/46840 cut-off events. [2021-04-28 22:50:48,768 INFO L130 PetriNetUnfolder]: For 12155/80279 co-relation queries the response was YES. [2021-04-28 22:50:48,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136627 conditions, 46840 events. 32122/46840 cut-off events. For 12155/80279 co-relation queries the response was YES. Maximal size of possible extension queue 8162. Compared 422325 event pairs, 17834 based on Foata normal form. 28/13258 useless extension candidates. Maximal degree in co-relation 136605. Up to 44467 conditions per place. [2021-04-28 22:50:49,675 INFO L146 LiptonReduction]: Number of co-enabled transitions 2786 [2021-04-28 22:50:49,721 INFO L158 LiptonReduction]: Checked pairs total: 376 [2021-04-28 22:50:49,721 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:50:49,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5407 [2021-04-28 22:50:49,723 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 88 transitions, 461 flow [2021-04-28 22:50:49,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 267.75) internal successors, (1071), 4 states have internal predecessors, (1071), 0 states have call successors, (0), 0 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 22:50:49,724 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:50:49,724 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:50:49,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:50:49,725 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:50:49,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:50:49,725 INFO L82 PathProgramCache]: Analyzing trace with hash -871324659, now seen corresponding path program 1 times [2021-04-28 22:50:49,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:50:49,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246258794] [2021-04-28 22:50:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:50:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:50:49,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:49,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:50:49,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:49,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:50:49,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:49,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:50:49,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:50:49,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:50:49,912 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 22:50:49,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246258794] [2021-04-28 22:50:49,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:50:49,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:50:49,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131967328] [2021-04-28 22:50:49,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:50:49,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:50:49,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:50:49,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:50:49,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:50:49,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 88 transitions, 461 flow. Second operand has 5 states, 5 states have (on average 267.8) internal successors, (1339), 5 states have internal predecessors, (1339), 0 states have call successors, (0), 0 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 22:50:49,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:50:49,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:50:49,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:50:56,943 INFO L129 PetriNetUnfolder]: 41377/63504 cut-off events. [2021-04-28 22:50:56,944 INFO L130 PetriNetUnfolder]: For 33488/1155675 co-relation queries the response was YES. [2021-04-28 22:50:57,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245705 conditions, 63504 events. 41377/63504 cut-off events. For 33488/1155675 co-relation queries the response was YES. Maximal size of possible extension queue 13299. Compared 613803 event pairs, 7695 based on Foata normal form. 1296/20375 useless extension candidates. Maximal degree in co-relation 245681. Up to 58597 conditions per place. [2021-04-28 22:50:57,558 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 35 selfloop transitions, 62 changer transitions 0/132 dead transitions. [2021-04-28 22:50:57,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 132 transitions, 900 flow [2021-04-28 22:50:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:50:57,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:50:57,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1965 transitions. [2021-04-28 22:50:57,569 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.781933943493832 [2021-04-28 22:50:57,569 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1965 transitions. [2021-04-28 22:50:57,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1965 transitions. [2021-04-28 22:50:57,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:50:57,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1965 transitions. [2021-04-28 22:50:57,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 280.7142857142857) internal successors, (1965), 7 states have internal predecessors, (1965), 0 states have call successors, (0), 0 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 22:50:57,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 0 states have call successors, (0), 0 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 22:50:57,584 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 0 states have call successors, (0), 0 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 22:50:57,584 INFO L185 Difference]: Start difference. First operand has 78 places, 88 transitions, 461 flow. Second operand 7 states and 1965 transitions. [2021-04-28 22:50:57,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 132 transitions, 900 flow [2021-04-28 22:50:57,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 132 transitions, 900 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:50:57,979 INFO L241 Difference]: Finished difference. Result has 87 places, 118 transitions, 895 flow [2021-04-28 22:50:57,979 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=895, PETRI_PLACES=87, PETRI_TRANSITIONS=118} [2021-04-28 22:50:57,979 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -59 predicate places. [2021-04-28 22:50:57,979 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:50:57,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 118 transitions, 895 flow [2021-04-28 22:50:57,980 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 118 transitions, 895 flow [2021-04-28 22:50:57,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 118 transitions, 895 flow [2021-04-28 22:51:03,665 INFO L129 PetriNetUnfolder]: 35945/55074 cut-off events. [2021-04-28 22:51:03,666 INFO L130 PetriNetUnfolder]: For 131893/414950 co-relation queries the response was YES. [2021-04-28 22:51:03,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263376 conditions, 55074 events. 35945/55074 cut-off events. For 131893/414950 co-relation queries the response was YES. Maximal size of possible extension queue 10155. Compared 538142 event pairs, 7869 based on Foata normal form. 56/16167 useless extension candidates. Maximal degree in co-relation 263349. Up to 52195 conditions per place. [2021-04-28 22:51:04,697 INFO L146 LiptonReduction]: Number of co-enabled transitions 3866 [2021-04-28 22:51:04,735 INFO L158 LiptonReduction]: Checked pairs total: 518 [2021-04-28 22:51:04,735 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:51:04,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6756 [2021-04-28 22:51:04,737 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 118 transitions, 895 flow [2021-04-28 22:51:04,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 267.8) internal successors, (1339), 5 states have internal predecessors, (1339), 0 states have call successors, (0), 0 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 22:51:04,738 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:51:04,738 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:51:04,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 22:51:04,738 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:51:04,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:51:04,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1893338349, now seen corresponding path program 1 times [2021-04-28 22:51:04,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:51:04,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156077684] [2021-04-28 22:51:04,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:51:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:51:04,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:51:04,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:51:04,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:51:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:51:04,802 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 22:51:04,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156077684] [2021-04-28 22:51:04,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:51:04,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:51:04,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185989216] [2021-04-28 22:51:04,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:51:04,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:51:04,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:51:04,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:51:04,809 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 359 [2021-04-28 22:51:04,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 118 transitions, 895 flow. Second operand has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 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 22:51:04,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:51:04,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 359 [2021-04-28 22:51:04,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:51:16,580 INFO L129 PetriNetUnfolder]: 66552/100695 cut-off events. [2021-04-28 22:51:16,580 INFO L130 PetriNetUnfolder]: For 454410/2360747 co-relation queries the response was YES. [2021-04-28 22:51:17,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 482038 conditions, 100695 events. 66552/100695 cut-off events. For 454410/2360747 co-relation queries the response was YES. Maximal size of possible extension queue 21048. Compared 993012 event pairs, 14571 based on Foata normal form. 329/28807 useless extension candidates. Maximal degree in co-relation 482009. Up to 96388 conditions per place. [2021-04-28 22:51:17,381 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/118 dead transitions. [2021-04-28 22:51:17,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 118 transitions, 907 flow [2021-04-28 22:51:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:51:17,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:51:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2021-04-28 22:51:17,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6908077994428969 [2021-04-28 22:51:17,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2021-04-28 22:51:17,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2021-04-28 22:51:17,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:51:17,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2021-04-28 22:51:17,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 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 22:51:17,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:51:17,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 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 22:51:17,395 INFO L185 Difference]: Start difference. First operand has 87 places, 118 transitions, 895 flow. Second operand 3 states and 744 transitions. [2021-04-28 22:51:17,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 118 transitions, 907 flow [2021-04-28 22:51:22,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 118 transitions, 749 flow, removed 53 selfloop flow, removed 3 redundant places. [2021-04-28 22:51:22,373 INFO L241 Difference]: Finished difference. Result has 87 places, 118 transitions, 748 flow [2021-04-28 22:51:22,373 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=87, PETRI_TRANSITIONS=118} [2021-04-28 22:51:22,373 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -59 predicate places. [2021-04-28 22:51:22,373 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:51:22,373 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 118 transitions, 748 flow [2021-04-28 22:51:22,374 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 118 transitions, 748 flow [2021-04-28 22:51:22,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 118 transitions, 748 flow [2021-04-28 22:51:32,680 INFO L129 PetriNetUnfolder]: 66637/100814 cut-off events. [2021-04-28 22:51:32,681 INFO L130 PetriNetUnfolder]: For 140266/302670 co-relation queries the response was YES. [2021-04-28 22:51:33,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 459555 conditions, 100814 events. 66637/100814 cut-off events. For 140266/302670 co-relation queries the response was YES. Maximal size of possible extension queue 17868. Compared 1010124 event pairs, 15126 based on Foata normal form. 57/29007 useless extension candidates. Maximal degree in co-relation 459528. Up to 87097 conditions per place. [2021-04-28 22:51:34,492 INFO L146 LiptonReduction]: Number of co-enabled transitions 3864 [2021-04-28 22:51:34,555 INFO L158 LiptonReduction]: Checked pairs total: 518 [2021-04-28 22:51:34,555 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:51:34,556 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12183 [2021-04-28 22:51:34,557 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 118 transitions, 748 flow [2021-04-28 22:51:34,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 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 22:51:34,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:51:34,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:51:34,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 22:51:34,558 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:51:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:51:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash 618030152, now seen corresponding path program 1 times [2021-04-28 22:51:34,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:51:34,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756995289] [2021-04-28 22:51:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:51:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:51:34,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:51:34,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:51:34,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:51:34,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:51:34,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:51:34,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:51:34,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:51:34,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:51:34,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:51:34,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:51:34,673 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 22:51:34,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756995289] [2021-04-28 22:51:34,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:51:34,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:51:34,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343785505] [2021-04-28 22:51:34,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:51:34,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:51:34,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:51:34,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:51:34,678 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:51:34,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 118 transitions, 748 flow. Second operand has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 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 22:51:34,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:51:34,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:51:34,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:51:47,873 INFO L129 PetriNetUnfolder]: 67617/107343 cut-off events. [2021-04-28 22:51:47,874 INFO L130 PetriNetUnfolder]: For 151433/2204424 co-relation queries the response was YES. [2021-04-28 22:51:48,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 589160 conditions, 107343 events. 67617/107343 cut-off events. For 151433/2204424 co-relation queries the response was YES. Maximal size of possible extension queue 23949. Compared 1140846 event pairs, 2268 based on Foata normal form. 2075/33822 useless extension candidates. Maximal degree in co-relation 589131. Up to 91036 conditions per place. [2021-04-28 22:51:49,098 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 23 selfloop transitions, 92 changer transitions 12/162 dead transitions. [2021-04-28 22:51:49,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 162 transitions, 1391 flow [2021-04-28 22:51:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:51:49,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:51:49,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2529 transitions. [2021-04-28 22:51:49,112 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7827298050139275 [2021-04-28 22:51:49,113 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2529 transitions. [2021-04-28 22:51:49,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2529 transitions. [2021-04-28 22:51:49,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:51:49,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2529 transitions. [2021-04-28 22:51:49,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 281.0) internal successors, (2529), 9 states have internal predecessors, (2529), 0 states have call successors, (0), 0 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 22:51:49,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 359.0) internal successors, (3590), 10 states have internal predecessors, (3590), 0 states have call successors, (0), 0 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 22:51:49,130 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 359.0) internal successors, (3590), 10 states have internal predecessors, (3590), 0 states have call successors, (0), 0 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 22:51:49,130 INFO L185 Difference]: Start difference. First operand has 87 places, 118 transitions, 748 flow. Second operand 9 states and 2529 transitions. [2021-04-28 22:51:49,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 162 transitions, 1391 flow [2021-04-28 22:51:54,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 162 transitions, 1386 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:51:54,095 INFO L241 Difference]: Finished difference. Result has 97 places, 147 transitions, 1303 flow [2021-04-28 22:51:54,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1303, PETRI_PLACES=97, PETRI_TRANSITIONS=147} [2021-04-28 22:51:54,096 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -49 predicate places. [2021-04-28 22:51:54,096 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:51:54,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 147 transitions, 1303 flow [2021-04-28 22:51:54,097 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 147 transitions, 1303 flow [2021-04-28 22:51:54,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 147 transitions, 1303 flow [2021-04-28 22:52:03,726 INFO L129 PetriNetUnfolder]: 46860/80103 cut-off events. [2021-04-28 22:52:03,726 INFO L130 PetriNetUnfolder]: For 241298/579271 co-relation queries the response was YES. [2021-04-28 22:52:04,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 482905 conditions, 80103 events. 46860/80103 cut-off events. For 241298/579271 co-relation queries the response was YES. Maximal size of possible extension queue 17327. Compared 944875 event pairs, 2403 based on Foata normal form. 36/22520 useless extension candidates. Maximal degree in co-relation 482874. Up to 66466 conditions per place. [2021-04-28 22:52:05,286 INFO L146 LiptonReduction]: Number of co-enabled transitions 4358 [2021-04-28 22:52:05,389 INFO L158 LiptonReduction]: Checked pairs total: 608 [2021-04-28 22:52:05,390 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:52:05,390 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11294 [2021-04-28 22:52:05,391 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 147 transitions, 1303 flow [2021-04-28 22:52:05,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 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 22:52:05,392 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:52:05,392 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] [2021-04-28 22:52:05,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 22:52:05,392 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:52:05,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:52:05,393 INFO L82 PathProgramCache]: Analyzing trace with hash 376973752, now seen corresponding path program 1 times [2021-04-28 22:52:05,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:52:05,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415924892] [2021-04-28 22:52:05,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:52:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:52:05,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:05,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:52:05,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:05,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:05,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:52:05,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:52:05,477 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 22:52:05,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415924892] [2021-04-28 22:52:05,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:52:05,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:52:05,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757172793] [2021-04-28 22:52:05,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:52:05,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:52:05,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:52:05,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:52:05,482 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 359 [2021-04-28 22:52:05,483 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 147 transitions, 1303 flow. Second operand has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 0 states have call successors, (0), 0 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 22:52:05,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:52:05,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 359 [2021-04-28 22:52:05,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:52:26,883 INFO L129 PetriNetUnfolder]: 90036/152815 cut-off events. [2021-04-28 22:52:26,884 INFO L130 PetriNetUnfolder]: For 572381/2307960 co-relation queries the response was YES. [2021-04-28 22:52:28,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 921425 conditions, 152815 events. 90036/152815 cut-off events. For 572381/2307960 co-relation queries the response was YES. Maximal size of possible extension queue 35862. Compared 1873026 event pairs, 4590 based on Foata normal form. 332/42927 useless extension candidates. Maximal degree in co-relation 921392. Up to 127018 conditions per place. [2021-04-28 22:52:28,689 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 4 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2021-04-28 22:52:28,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 149 transitions, 1333 flow [2021-04-28 22:52:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:52:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:52:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 999 transitions. [2021-04-28 22:52:28,699 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6956824512534819 [2021-04-28 22:52:28,699 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 999 transitions. [2021-04-28 22:52:28,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 999 transitions. [2021-04-28 22:52:28,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:52:28,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 999 transitions. [2021-04-28 22:52:28,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 249.75) internal successors, (999), 4 states have internal predecessors, (999), 0 states have call successors, (0), 0 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 22:52:28,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 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 22:52:28,706 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 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 22:52:28,706 INFO L185 Difference]: Start difference. First operand has 97 places, 147 transitions, 1303 flow. Second operand 4 states and 999 transitions. [2021-04-28 22:52:28,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 149 transitions, 1333 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown