/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix044_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 21:16:29,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 21:16:29,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 21:16:29,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 21:16:29,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 21:16:29,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 21:16:29,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 21:16:29,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 21:16:29,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 21:16:29,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 21:16:29,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 21:16:29,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 21:16:29,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 21:16:29,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 21:16:29,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 21:16:29,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 21:16:29,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 21:16:29,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 21:16:29,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 21:16:29,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 21:16:29,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 21:16:29,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 21:16:29,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 21:16:29,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 21:16:29,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 21:16:29,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 21:16:29,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 21:16:29,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 21:16:29,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 21:16:29,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 21:16:29,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 21:16:29,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 21:16:29,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 21:16:29,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 21:16:29,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 21:16:29,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 21:16:29,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 21:16:29,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 21:16:29,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 21:16:29,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 21:16:29,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 21:16:29,459 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 21:16:29,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 21:16:29,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 21:16:29,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 21:16:29,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 21:16:29,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 21:16:29,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 21:16:29,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 21:16:29,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 21:16:29,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 21:16:29,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 21:16:29,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 21:16:29,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 21:16:29,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 21:16:29,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 21:16:29,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 21:16:29,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 21:16:29,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:16:29,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 21:16:29,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 21:16:29,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 21:16:29,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 21:16:29,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 21:16:29,464 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 21:16:29,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 21:16:29,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 21:16:29,465 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 21:16:29,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 21:16:29,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 21:16:29,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 21:16:29,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 21:16:29,939 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 21:16:29,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_rmo.opt.i [2021-04-28 21:16:30,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec37b2873/26a701f3196a4a219e75b4cd34589209/FLAG246c38393 [2021-04-28 21:16:30,854 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 21:16:30,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_rmo.opt.i [2021-04-28 21:16:30,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec37b2873/26a701f3196a4a219e75b4cd34589209/FLAG246c38393 [2021-04-28 21:16:31,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec37b2873/26a701f3196a4a219e75b4cd34589209 [2021-04-28 21:16:31,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 21:16:31,144 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 21:16:31,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 21:16:31,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 21:16:31,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 21:16:31,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:31,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372acf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31, skipping insertion in model container [2021-04-28 21:16:31,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:31,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 21:16:31,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 21:16:31,380 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_rmo.opt.i[948,961] [2021-04-28 21:16:31,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:16:31,627 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 21:16:31,643 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_rmo.opt.i[948,961] [2021-04-28 21:16:31,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:16:31,881 INFO L208 MainTranslator]: Completed translation [2021-04-28 21:16:31,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31 WrapperNode [2021-04-28 21:16:31,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 21:16:31,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 21:16:31,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 21:16:31,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 21:16:31,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:31,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:32,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 21:16:32,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 21:16:32,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 21:16:32,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 21:16:32,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:32,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:32,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:32,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:32,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:32,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:32,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... [2021-04-28 21:16:32,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 21:16:32,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 21:16:32,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 21:16:32,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 21:16:32,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 21:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 21:16:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 21:16:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 21:16:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 21:16:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 21:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 21:16:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 21:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 21:16:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 21:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 21:16:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 21:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 21:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 21:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 21:16:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 21:16:32,241 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 21:16:34,615 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 21:16:34,616 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 21:16:34,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:16:34 BoogieIcfgContainer [2021-04-28 21:16:34,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 21:16:34,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 21:16:34,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 21:16:34,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 21:16:34,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:16:31" (1/3) ... [2021-04-28 21:16:34,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e39e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:16:34, skipping insertion in model container [2021-04-28 21:16:34,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:16:31" (2/3) ... [2021-04-28 21:16:34,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e39e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:16:34, skipping insertion in model container [2021-04-28 21:16:34,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:16:34" (3/3) ... [2021-04-28 21:16:34,629 INFO L111 eAbstractionObserver]: Analyzing ICFG mix044_rmo.opt.i [2021-04-28 21:16:34,637 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 21:16:34,643 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 21:16:34,644 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 21:16:34,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,687 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,687 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,687 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,690 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,690 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,690 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,690 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,690 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,692 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,694 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,699 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,699 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,699 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,699 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,699 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,700 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,700 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,700 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,700 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,700 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,701 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,701 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,701 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,701 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,702 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,702 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,702 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,703 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,704 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,704 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,704 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,705 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,705 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,705 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,705 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,706 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,707 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,709 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,709 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,709 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,710 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,712 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,712 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,713 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,713 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,715 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,715 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,715 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,716 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,716 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,716 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,716 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,716 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,717 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,717 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,719 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,719 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,719 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,720 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,720 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,720 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,720 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,721 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,721 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,721 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,721 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,721 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:16:34,723 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 21:16:34,748 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 21:16:34,776 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 21:16:34,776 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 21:16:34,776 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 21:16:34,777 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 21:16:34,777 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 21:16:34,777 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 21:16:34,777 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 21:16:34,777 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 21:16:34,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 21:16:34,847 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 21:16:34,847 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:16:34,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:16:34,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 21:16:34,860 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-04-28 21:16:34,862 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:16:34,882 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 21:16:34,888 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 21:16:34,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-04-28 21:16:34,949 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 21:16:34,949 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:16:34,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:16:34,957 INFO L146 LiptonReduction]: Number of co-enabled transitions 2598 [2021-04-28 21:16:39,075 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 21:16:39,190 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:16:39,752 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 21:16:39,964 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:16:41,170 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:16:42,277 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 21:16:44,724 WARN L205 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:16:45,809 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:16:49,943 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:16:50,996 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-04-28 21:16:53,527 WARN L205 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:16:54,738 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:16:55,968 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 21:16:56,535 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:16:59,180 WARN L205 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:17:00,362 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:17:01,715 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 21:17:02,319 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 21:17:05,116 WARN L205 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 21:17:06,383 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 21:17:11,289 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:17:11,974 WARN L205 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:17:15,101 WARN L205 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:17:16,483 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:17:18,039 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:17:18,753 WARN L205 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 21:17:21,808 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:17:23,286 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:17:24,992 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:17:26,497 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2021-04-28 21:17:30,035 WARN L205 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:17:31,564 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:17:33,241 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:17:34,029 WARN L205 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:17:37,525 WARN L205 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:17:39,149 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:17:41,066 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:17:41,178 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:17:41,290 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:17:41,403 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:17:41,788 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:17:41,902 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:17:42,018 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:17:42,136 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:17:42,248 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:17:43,391 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:17:43,496 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:17:43,699 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:17:43,802 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:17:44,100 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:17:45,978 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 21:17:46,821 WARN L205 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:17:50,722 WARN L205 SmtUtils]: Spent 3.90 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:17:52,562 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:17:54,583 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:17:55,515 WARN L205 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:17:59,502 WARN L205 SmtUtils]: Spent 3.98 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:18:01,369 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:18:03,455 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:18:04,399 WARN L205 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:18:08,710 WARN L205 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:18:10,670 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:18:10,831 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:18:10,945 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:18:11,059 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:18:11,175 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:18:12,287 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:18:12,409 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:18:12,537 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:18:12,662 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:18:14,506 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:18:14,620 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:18:14,734 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:18:14,849 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:18:15,923 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:18:16,025 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:18:16,127 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:18:16,230 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 21:18:17,039 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:18:17,158 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:18:17,277 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:18:17,397 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:18:18,409 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:18:18,572 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:18:18,732 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:18:18,894 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:18:19,028 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:18:19,169 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:18:19,322 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:18:19,479 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:18:19,646 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:19,811 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:19,966 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:20,139 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:20,335 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:18:20,527 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:18:20,726 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:18:20,917 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:18:21,087 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:21,251 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:21,413 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:21,571 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:21,733 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:21,891 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:22,059 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:22,221 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:22,409 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:18:22,612 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:18:22,808 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:18:23,005 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:18:23,173 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:18:23,343 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:18:23,521 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:18:23,691 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:18:23,865 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:24,016 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:24,165 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:24,316 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:24,554 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:18:24,785 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:18:25,018 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:18:25,265 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:18:25,402 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:18:25,540 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:18:25,678 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:18:25,818 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:18:26,038 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:18:26,261 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:18:26,478 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:18:26,697 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:18:26,848 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:27,011 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:27,163 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:27,315 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:27,467 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:27,619 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:27,770 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:27,921 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:28,049 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:18:28,176 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:18:28,302 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:18:28,428 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:18:28,573 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:28,717 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:28,862 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:29,006 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:29,139 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:18:29,283 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:18:29,413 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:18:29,544 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:18:29,695 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:29,845 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:29,996 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:30,147 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:18:30,293 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:30,438 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:30,582 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:30,725 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:18:30,977 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:18:31,219 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:18:31,476 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:18:31,719 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:18:31,971 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:18:32,231 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:18:32,504 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:18:32,773 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:18:33,012 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:33,252 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:33,482 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:33,723 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:34,020 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:18:34,332 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:18:34,641 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:18:34,959 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:18:35,250 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:18:35,531 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:18:35,827 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:18:36,117 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:18:36,330 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:18:36,556 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:18:36,771 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:18:36,973 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:18:37,235 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:18:37,492 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:18:37,757 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:18:38,034 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:18:38,310 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:18:38,589 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:18:38,858 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:18:39,132 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:18:39,408 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:18:39,671 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:18:39,948 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:18:40,218 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:18:40,455 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:40,682 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:40,910 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:41,143 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:41,350 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:18:41,562 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:18:41,781 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:18:41,991 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:18:42,216 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:18:42,443 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:18:42,665 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:18:42,881 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:18:43,116 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:43,356 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:43,607 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:43,853 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:18:44,090 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:18:44,326 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:18:44,568 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:18:44,802 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:18:45,055 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:18:45,264 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:18:45,464 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:18:45,662 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:18:46,020 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:46,371 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:46,713 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:47,079 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:47,402 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:18:47,721 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:18:48,047 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:18:48,375 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:18:48,730 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:49,099 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:49,474 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:49,852 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:50,185 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:18:50,511 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:18:50,854 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:18:51,205 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:18:52,104 WARN L205 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 21:18:52,549 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 21:18:53,522 WARN L205 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 21:18:53,967 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 21:18:54,319 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:54,666 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:55,039 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:55,401 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:55,753 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:18:56,083 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:18:56,441 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:18:56,799 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:18:57,127 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:18:57,469 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:18:57,780 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:18:58,090 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:18:58,458 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:58,823 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:59,162 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:59,503 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:18:59,829 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:19:00,144 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:19:00,490 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:19:00,829 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:19:01,805 WARN L205 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 21:19:02,251 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 21:19:03,217 WARN L205 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 21:19:03,681 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 21:19:03,739 INFO L158 LiptonReduction]: Checked pairs total: 24899 [2021-04-28 21:19:03,739 INFO L160 LiptonReduction]: Total number of compositions: 262 [2021-04-28 21:19:03,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148884 [2021-04-28 21:19:03,774 INFO L129 PetriNetUnfolder]: 2/102 cut-off events. [2021-04-28 21:19:03,775 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:19:03,775 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:03,776 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:03,776 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:03,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:03,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1988398300, now seen corresponding path program 1 times [2021-04-28 21:19:03,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:03,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023574478] [2021-04-28 21:19:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:04,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:04,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:19:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:04,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023574478] [2021-04-28 21:19:04,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:04,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:19:04,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840947618] [2021-04-28 21:19:04,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:19:04,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:04,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:19:04,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:19:04,221 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 379 [2021-04-28 21:19:04,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:04,228 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:04,228 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 379 [2021-04-28 21:19:04,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:04,808 INFO L129 PetriNetUnfolder]: 212/677 cut-off events. [2021-04-28 21:19:04,809 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:19:04,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 677 events. 212/677 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5244 event pairs, 16 based on Foata normal form. 10/308 useless extension candidates. Maximal degree in co-relation 1006. Up to 333 conditions per place. [2021-04-28 21:19:04,816 INFO L132 encePairwiseOnDemand]: 361/379 looper letters, 7 selfloop transitions, 4 changer transitions 102/154 dead transitions. [2021-04-28 21:19:04,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 154 transitions, 418 flow [2021-04-28 21:19:04,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:19:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:19:04,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2021-04-28 21:19:04,839 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8469656992084432 [2021-04-28 21:19:04,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2021-04-28 21:19:04,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2021-04-28 21:19:04,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:04,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2021-04-28 21:19:04,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:04,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:04,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:04,870 INFO L185 Difference]: Start difference. First operand has 153 places, 142 transitions, 296 flow. Second operand 3 states and 963 transitions. [2021-04-28 21:19:04,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 154 transitions, 418 flow [2021-04-28 21:19:04,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 154 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 21:19:04,878 INFO L241 Difference]: Finished difference. Result has 148 places, 49 transitions, 114 flow [2021-04-28 21:19:04,881 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=148, PETRI_TRANSITIONS=49} [2021-04-28 21:19:04,882 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -5 predicate places. [2021-04-28 21:19:04,882 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:04,882 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:19:04,883 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:19:04,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 49 transitions, 114 flow [2021-04-28 21:19:04,891 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2021-04-28 21:19:04,891 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:19:04,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 172 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:19:04,893 INFO L146 LiptonReduction]: Number of co-enabled transitions 1464 [2021-04-28 21:19:05,315 INFO L158 LiptonReduction]: Checked pairs total: 1426 [2021-04-28 21:19:05,316 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:19:05,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 434 [2021-04-28 21:19:05,318 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 114 flow [2021-04-28 21:19:05,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:05,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:05,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:05,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:19:05,319 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:05,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:05,320 INFO L82 PathProgramCache]: Analyzing trace with hash 409763528, now seen corresponding path program 1 times [2021-04-28 21:19:05,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:05,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369652106] [2021-04-28 21:19:05,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:05,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:05,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:05,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369652106] [2021-04-28 21:19:05,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:05,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:19:05,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608391206] [2021-04-28 21:19:05,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:19:05,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:05,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:19:05,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:19:05,538 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 379 [2021-04-28 21:19:05,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:05,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:05,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 379 [2021-04-28 21:19:05,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:05,566 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:19:05,566 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:19:05,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 228 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-04-28 21:19:05,567 INFO L132 encePairwiseOnDemand]: 375/379 looper letters, 3 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 21:19:05,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 130 flow [2021-04-28 21:19:05,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:19:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:19:05,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 838 transitions. [2021-04-28 21:19:05,574 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7370272647317502 [2021-04-28 21:19:05,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 838 transitions. [2021-04-28 21:19:05,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 838 transitions. [2021-04-28 21:19:05,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:05,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 838 transitions. [2021-04-28 21:19:05,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.3333333333333) internal successors, (838), 3 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:05,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:05,583 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:05,583 INFO L185 Difference]: Start difference. First operand has 60 places, 49 transitions, 114 flow. Second operand 3 states and 838 transitions. [2021-04-28 21:19:05,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 130 flow [2021-04-28 21:19:05,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:19:05,588 INFO L241 Difference]: Finished difference. Result has 61 places, 51 transitions, 125 flow [2021-04-28 21:19:05,589 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2021-04-28 21:19:05,589 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -92 predicate places. [2021-04-28 21:19:05,589 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:05,590 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:19:05,590 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:19:05,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 51 transitions, 125 flow [2021-04-28 21:19:05,600 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:19:05,600 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:19:05,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 247 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 78. Up to 10 conditions per place. [2021-04-28 21:19:05,602 INFO L146 LiptonReduction]: Number of co-enabled transitions 1586 [2021-04-28 21:19:06,485 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:19:06,592 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:19:06,650 INFO L158 LiptonReduction]: Checked pairs total: 2304 [2021-04-28 21:19:06,650 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:19:06,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1061 [2021-04-28 21:19:06,652 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 125 flow [2021-04-28 21:19:06,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:06,654 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:06,654 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:06,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:19:06,654 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:06,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:06,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1422161633, now seen corresponding path program 1 times [2021-04-28 21:19:06,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:06,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476273420] [2021-04-28 21:19:06,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:06,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:06,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:06,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476273420] [2021-04-28 21:19:06,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:06,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:19:06,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525225571] [2021-04-28 21:19:06,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:19:06,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:06,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:19:06,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:19:06,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 380 [2021-04-28 21:19:06,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:06,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:06,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 380 [2021-04-28 21:19:06,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:06,785 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:19:06,786 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 21:19:06,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 63 events. 3/63 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 232 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 82. Up to 10 conditions per place. [2021-04-28 21:19:06,787 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 1 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2021-04-28 21:19:06,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 51 transitions, 131 flow [2021-04-28 21:19:06,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:19:06,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:19:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 799 transitions. [2021-04-28 21:19:06,793 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7008771929824561 [2021-04-28 21:19:06,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 799 transitions. [2021-04-28 21:19:06,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 799 transitions. [2021-04-28 21:19:06,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:06,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 799 transitions. [2021-04-28 21:19:06,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:06,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:06,802 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:06,802 INFO L185 Difference]: Start difference. First operand has 61 places, 51 transitions, 125 flow. Second operand 3 states and 799 transitions. [2021-04-28 21:19:06,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 51 transitions, 131 flow [2021-04-28 21:19:06,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 51 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:19:06,805 INFO L241 Difference]: Finished difference. Result has 63 places, 51 transitions, 130 flow [2021-04-28 21:19:06,805 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2021-04-28 21:19:06,805 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -90 predicate places. [2021-04-28 21:19:06,805 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:06,806 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 51 transitions, 130 flow [2021-04-28 21:19:06,806 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 51 transitions, 130 flow [2021-04-28 21:19:06,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 51 transitions, 130 flow [2021-04-28 21:19:06,816 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:19:06,817 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 21:19:06,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 63 events. 3/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 243 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 81. Up to 10 conditions per place. [2021-04-28 21:19:06,819 INFO L146 LiptonReduction]: Number of co-enabled transitions 1576 [2021-04-28 21:19:06,955 INFO L158 LiptonReduction]: Checked pairs total: 1053 [2021-04-28 21:19:06,956 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:19:06,956 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-04-28 21:19:06,958 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 130 flow [2021-04-28 21:19:06,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:06,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:06,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:06,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:19:06,960 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:06,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:06,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1354327224, now seen corresponding path program 1 times [2021-04-28 21:19:06,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:06,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544244484] [2021-04-28 21:19:06,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:07,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:07,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:19:07,177 INFO L142 QuantifierPusher]: treesize reduction 35, result has 18.6 percent of original size [2021-04-28 21:19:07,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 21:19:07,197 INFO L142 QuantifierPusher]: treesize reduction 35, result has 23.9 percent of original size [2021-04-28 21:19:07,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 21:19:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:07,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544244484] [2021-04-28 21:19:07,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:07,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:19:07,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533151897] [2021-04-28 21:19:07,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:19:07,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:07,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:19:07,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:19:07,226 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 380 [2021-04-28 21:19:07,228 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:07,228 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:07,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 380 [2021-04-28 21:19:07,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:07,470 INFO L129 PetriNetUnfolder]: 52/204 cut-off events. [2021-04-28 21:19:07,471 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-04-28 21:19:07,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 204 events. 52/204 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1036 event pairs, 10 based on Foata normal form. 2/129 useless extension candidates. Maximal degree in co-relation 346. Up to 55 conditions per place. [2021-04-28 21:19:07,474 INFO L132 encePairwiseOnDemand]: 372/380 looper letters, 16 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2021-04-28 21:19:07,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 212 flow [2021-04-28 21:19:07,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:19:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:19:07,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 934 transitions. [2021-04-28 21:19:07,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6144736842105263 [2021-04-28 21:19:07,481 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 934 transitions. [2021-04-28 21:19:07,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 934 transitions. [2021-04-28 21:19:07,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:07,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 934 transitions. [2021-04-28 21:19:07,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 233.5) internal successors, (934), 4 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:07,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:07,491 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:07,491 INFO L185 Difference]: Start difference. First operand has 63 places, 51 transitions, 130 flow. Second operand 4 states and 934 transitions. [2021-04-28 21:19:07,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 212 flow [2021-04-28 21:19:07,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:19:07,494 INFO L241 Difference]: Finished difference. Result has 66 places, 58 transitions, 186 flow [2021-04-28 21:19:07,494 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2021-04-28 21:19:07,494 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -87 predicate places. [2021-04-28 21:19:07,495 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:07,495 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 58 transitions, 186 flow [2021-04-28 21:19:07,495 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 58 transitions, 186 flow [2021-04-28 21:19:07,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 58 transitions, 186 flow [2021-04-28 21:19:07,514 INFO L129 PetriNetUnfolder]: 16/110 cut-off events. [2021-04-28 21:19:07,515 INFO L130 PetriNetUnfolder]: For 41/47 co-relation queries the response was YES. [2021-04-28 21:19:07,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 110 events. 16/110 cut-off events. For 41/47 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 495 event pairs, 5 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 187. Up to 21 conditions per place. [2021-04-28 21:19:07,519 INFO L146 LiptonReduction]: Number of co-enabled transitions 1912 [2021-04-28 21:19:07,649 INFO L158 LiptonReduction]: Checked pairs total: 628 [2021-04-28 21:19:07,649 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:19:07,649 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 154 [2021-04-28 21:19:07,651 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 186 flow [2021-04-28 21:19:07,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:07,653 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:07,653 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:07,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:19:07,653 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:07,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:07,654 INFO L82 PathProgramCache]: Analyzing trace with hash -2075931275, now seen corresponding path program 1 times [2021-04-28 21:19:07,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:07,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508484088] [2021-04-28 21:19:07,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:07,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:07,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:07,745 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:19:07,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:19:07,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:07,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:19:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:07,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508484088] [2021-04-28 21:19:07,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:07,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:19:07,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539998812] [2021-04-28 21:19:07,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:19:07,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:07,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:19:07,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:19:07,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:19:07,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:07,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:07,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:19:07,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:11,951 INFO L129 PetriNetUnfolder]: 17748/25636 cut-off events. [2021-04-28 21:19:11,951 INFO L130 PetriNetUnfolder]: For 2111/2237 co-relation queries the response was YES. [2021-04-28 21:19:12,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52505 conditions, 25636 events. 17748/25636 cut-off events. For 2111/2237 co-relation queries the response was YES. Maximal size of possible extension queue 4632. Compared 216316 event pairs, 10002 based on Foata normal form. 418/7770 useless extension candidates. Maximal degree in co-relation 52491. Up to 15991 conditions per place. [2021-04-28 21:19:12,290 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 34 selfloop transitions, 33 changer transitions 0/102 dead transitions. [2021-04-28 21:19:12,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 102 transitions, 408 flow [2021-04-28 21:19:12,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:19:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:19:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1496 transitions. [2021-04-28 21:19:12,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7873684210526316 [2021-04-28 21:19:12,298 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1496 transitions. [2021-04-28 21:19:12,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1496 transitions. [2021-04-28 21:19:12,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:12,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1496 transitions. [2021-04-28 21:19:12,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 299.2) internal successors, (1496), 5 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:12,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:12,310 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:12,311 INFO L185 Difference]: Start difference. First operand has 66 places, 58 transitions, 186 flow. Second operand 5 states and 1496 transitions. [2021-04-28 21:19:12,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 102 transitions, 408 flow [2021-04-28 21:19:12,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 102 transitions, 405 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:19:12,327 INFO L241 Difference]: Finished difference. Result has 72 places, 89 transitions, 429 flow [2021-04-28 21:19:12,328 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=72, PETRI_TRANSITIONS=89} [2021-04-28 21:19:12,328 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -81 predicate places. [2021-04-28 21:19:12,328 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:12,328 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 89 transitions, 429 flow [2021-04-28 21:19:12,329 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 89 transitions, 429 flow [2021-04-28 21:19:12,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 89 transitions, 429 flow [2021-04-28 21:19:16,000 INFO L129 PetriNetUnfolder]: 19279/28407 cut-off events. [2021-04-28 21:19:16,000 INFO L130 PetriNetUnfolder]: For 5703/15824 co-relation queries the response was YES. [2021-04-28 21:19:16,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81521 conditions, 28407 events. 19279/28407 cut-off events. For 5703/15824 co-relation queries the response was YES. Maximal size of possible extension queue 5711. Compared 243393 event pairs, 11033 based on Foata normal form. 0/7811 useless extension candidates. Maximal degree in co-relation 81505. Up to 26876 conditions per place. [2021-04-28 21:19:16,471 INFO L146 LiptonReduction]: Number of co-enabled transitions 2912 [2021-04-28 21:19:16,593 INFO L158 LiptonReduction]: Checked pairs total: 1027 [2021-04-28 21:19:16,594 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:19:16,594 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4266 [2021-04-28 21:19:16,596 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 89 transitions, 429 flow [2021-04-28 21:19:16,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:16,597 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:16,598 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:16,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:19:16,598 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:16,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:16,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1733932933, now seen corresponding path program 1 times [2021-04-28 21:19:16,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:16,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603766647] [2021-04-28 21:19:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:16,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:16,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:16,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:16,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:16,717 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:19:16,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:19:16,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:16,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:19:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:16,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603766647] [2021-04-28 21:19:16,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:16,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:19:16,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776658056] [2021-04-28 21:19:16,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:19:16,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:16,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:19:16,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:19:16,754 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:19:16,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 89 transitions, 429 flow. Second operand has 5 states, 5 states have (on average 286.8) internal successors, (1434), 5 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:16,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:16,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:19:16,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:20,791 INFO L129 PetriNetUnfolder]: 19848/29926 cut-off events. [2021-04-28 21:19:20,791 INFO L130 PetriNetUnfolder]: For 9154/74584 co-relation queries the response was YES. [2021-04-28 21:19:20,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114914 conditions, 29926 events. 19848/29926 cut-off events. For 9154/74584 co-relation queries the response was YES. Maximal size of possible extension queue 5823. Compared 264579 event pairs, 4212 based on Foata normal form. 456/9897 useless extension candidates. Maximal degree in co-relation 114896. Up to 27680 conditions per place. [2021-04-28 21:19:21,019 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 35 selfloop transitions, 64 changer transitions 0/134 dead transitions. [2021-04-28 21:19:21,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 134 transitions, 876 flow [2021-04-28 21:19:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:19:21,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:19:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2098 transitions. [2021-04-28 21:19:21,029 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7887218045112782 [2021-04-28 21:19:21,029 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2098 transitions. [2021-04-28 21:19:21,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2098 transitions. [2021-04-28 21:19:21,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:21,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2098 transitions. [2021-04-28 21:19:21,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 299.7142857142857) internal successors, (2098), 7 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:21,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 380.0) internal successors, (3040), 8 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:21,044 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 380.0) internal successors, (3040), 8 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:21,044 INFO L185 Difference]: Start difference. First operand has 72 places, 89 transitions, 429 flow. Second operand 7 states and 2098 transitions. [2021-04-28 21:19:21,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 134 transitions, 876 flow [2021-04-28 21:19:21,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 134 transitions, 876 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:19:21,080 INFO L241 Difference]: Finished difference. Result has 81 places, 120 transitions, 871 flow [2021-04-28 21:19:21,081 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=871, PETRI_PLACES=81, PETRI_TRANSITIONS=120} [2021-04-28 21:19:21,081 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -72 predicate places. [2021-04-28 21:19:21,081 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:21,081 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 120 transitions, 871 flow [2021-04-28 21:19:21,082 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 120 transitions, 871 flow [2021-04-28 21:19:21,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 120 transitions, 871 flow [2021-04-28 21:19:24,020 INFO L129 PetriNetUnfolder]: 19880/30669 cut-off events. [2021-04-28 21:19:24,020 INFO L130 PetriNetUnfolder]: For 51919/96733 co-relation queries the response was YES. [2021-04-28 21:19:24,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144812 conditions, 30669 events. 19880/30669 cut-off events. For 51919/96733 co-relation queries the response was YES. Maximal size of possible extension queue 6003. Compared 286282 event pairs, 4479 based on Foata normal form. 3/8991 useless extension candidates. Maximal degree in co-relation 144791. Up to 28991 conditions per place. [2021-04-28 21:19:24,576 INFO L146 LiptonReduction]: Number of co-enabled transitions 4080 [2021-04-28 21:19:24,637 INFO L158 LiptonReduction]: Checked pairs total: 1978 [2021-04-28 21:19:24,637 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:19:24,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3556 [2021-04-28 21:19:24,639 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 120 transitions, 871 flow [2021-04-28 21:19:24,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 286.8) internal successors, (1434), 5 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:24,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:24,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:24,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:19:24,640 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:24,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:24,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1127367257, now seen corresponding path program 1 times [2021-04-28 21:19:24,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:24,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679360323] [2021-04-28 21:19:24,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:24,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:24,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:19:24,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:24,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:24,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:24,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679360323] [2021-04-28 21:19:24,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:24,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:19:24,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167592212] [2021-04-28 21:19:24,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:19:24,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:24,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:19:24,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:19:24,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 380 [2021-04-28 21:19:24,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 120 transitions, 871 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:24,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:24,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 380 [2021-04-28 21:19:24,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:29,587 INFO L129 PetriNetUnfolder]: 31907/47488 cut-off events. [2021-04-28 21:19:29,587 INFO L130 PetriNetUnfolder]: For 119535/250601 co-relation queries the response was YES. [2021-04-28 21:19:29,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226957 conditions, 47488 events. 31907/47488 cut-off events. For 119535/250601 co-relation queries the response was YES. Maximal size of possible extension queue 9252. Compared 423709 event pairs, 7758 based on Foata normal form. 399/14280 useless extension candidates. Maximal degree in co-relation 226934. Up to 45770 conditions per place. [2021-04-28 21:19:29,972 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 3 selfloop transitions, 3 changer transitions 6/120 dead transitions. [2021-04-28 21:19:29,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 120 transitions, 883 flow [2021-04-28 21:19:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:19:29,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:19:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2021-04-28 21:19:29,979 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2021-04-28 21:19:29,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 840 transitions. [2021-04-28 21:19:29,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 840 transitions. [2021-04-28 21:19:29,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:29,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 840 transitions. [2021-04-28 21:19:29,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:29,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:29,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:29,987 INFO L185 Difference]: Start difference. First operand has 81 places, 120 transitions, 871 flow. Second operand 3 states and 840 transitions. [2021-04-28 21:19:29,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 120 transitions, 883 flow [2021-04-28 21:19:30,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 120 transitions, 721 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 21:19:30,885 INFO L241 Difference]: Finished difference. Result has 81 places, 114 transitions, 678 flow [2021-04-28 21:19:30,885 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=81, PETRI_TRANSITIONS=114} [2021-04-28 21:19:30,886 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -72 predicate places. [2021-04-28 21:19:30,886 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:30,886 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 114 transitions, 678 flow [2021-04-28 21:19:30,886 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 114 transitions, 678 flow [2021-04-28 21:19:30,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 114 transitions, 678 flow [2021-04-28 21:19:35,150 INFO L129 PetriNetUnfolder]: 29831/46361 cut-off events. [2021-04-28 21:19:35,150 INFO L130 PetriNetUnfolder]: For 46883/52408 co-relation queries the response was YES. [2021-04-28 21:19:35,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212697 conditions, 46361 events. 29831/46361 cut-off events. For 46883/52408 co-relation queries the response was YES. Maximal size of possible extension queue 8790. Compared 451614 event pairs, 8172 based on Foata normal form. 4/13382 useless extension candidates. Maximal degree in co-relation 212676. Up to 41464 conditions per place. [2021-04-28 21:19:35,803 INFO L146 LiptonReduction]: Number of co-enabled transitions 3898 [2021-04-28 21:19:37,458 INFO L158 LiptonReduction]: Checked pairs total: 1864 [2021-04-28 21:19:37,458 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:19:37,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6572 [2021-04-28 21:19:37,460 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 114 transitions, 678 flow [2021-04-28 21:19:37,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:37,461 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:37,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:37,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:19:37,461 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:37,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1675986307, now seen corresponding path program 1 times [2021-04-28 21:19:37,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:37,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365764211] [2021-04-28 21:19:37,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:37,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:37,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:37,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:37,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:37,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:37,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:37,785 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:19:37,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:19:37,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:37,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:19:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:37,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365764211] [2021-04-28 21:19:37,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:37,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:19:37,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344878478] [2021-04-28 21:19:37,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:19:37,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:37,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:19:37,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:19:37,824 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:19:37,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 114 transitions, 678 flow. Second operand has 6 states, 6 states have (on average 286.8333333333333) internal successors, (1721), 6 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:37,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:37,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:19:37,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:43,498 INFO L129 PetriNetUnfolder]: 30533/48739 cut-off events. [2021-04-28 21:19:43,498 INFO L130 PetriNetUnfolder]: For 51878/157743 co-relation queries the response was YES. [2021-04-28 21:19:43,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269678 conditions, 48739 events. 30533/48739 cut-off events. For 51878/157743 co-relation queries the response was YES. Maximal size of possible extension queue 9945. Compared 481524 event pairs, 1404 based on Foata normal form. 725/15743 useless extension candidates. Maximal degree in co-relation 269655. Up to 42703 conditions per place. [2021-04-28 21:19:43,849 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 24 selfloop transitions, 86 changer transitions 15/160 dead transitions. [2021-04-28 21:19:43,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 160 transitions, 1337 flow [2021-04-28 21:19:43,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 21:19:43,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 21:19:43,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2694 transitions. [2021-04-28 21:19:43,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.787719298245614 [2021-04-28 21:19:43,862 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2694 transitions. [2021-04-28 21:19:43,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2694 transitions. [2021-04-28 21:19:43,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:43,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2694 transitions. [2021-04-28 21:19:43,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 299.3333333333333) internal successors, (2694), 9 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:43,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:43,881 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:43,881 INFO L185 Difference]: Start difference. First operand has 81 places, 114 transitions, 678 flow. Second operand 9 states and 2694 transitions. [2021-04-28 21:19:43,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 160 transitions, 1337 flow [2021-04-28 21:19:44,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 160 transitions, 1332 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 21:19:44,555 INFO L241 Difference]: Finished difference. Result has 91 places, 142 transitions, 1212 flow [2021-04-28 21:19:44,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1212, PETRI_PLACES=91, PETRI_TRANSITIONS=142} [2021-04-28 21:19:44,555 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -62 predicate places. [2021-04-28 21:19:44,556 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:19:44,556 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 142 transitions, 1212 flow [2021-04-28 21:19:44,556 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 142 transitions, 1212 flow [2021-04-28 21:19:44,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 142 transitions, 1212 flow [2021-04-28 21:19:48,463 INFO L129 PetriNetUnfolder]: 16258/33970 cut-off events. [2021-04-28 21:19:48,464 INFO L130 PetriNetUnfolder]: For 77071/91923 co-relation queries the response was YES. [2021-04-28 21:19:48,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204865 conditions, 33970 events. 16258/33970 cut-off events. For 77071/91923 co-relation queries the response was YES. Maximal size of possible extension queue 7031. Compared 445573 event pairs, 1344 based on Foata normal form. 4/10224 useless extension candidates. Maximal degree in co-relation 204840. Up to 29008 conditions per place. [2021-04-28 21:19:48,967 INFO L146 LiptonReduction]: Number of co-enabled transitions 4358 [2021-04-28 21:19:49,662 INFO L158 LiptonReduction]: Checked pairs total: 2761 [2021-04-28 21:19:49,663 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:19:49,663 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5107 [2021-04-28 21:19:49,664 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 142 transitions, 1212 flow [2021-04-28 21:19:49,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 286.8333333333333) internal successors, (1721), 6 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:49,666 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:19:49,666 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:19:49,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:19:49,666 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:19:49,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:19:49,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1410127256, now seen corresponding path program 1 times [2021-04-28 21:19:49,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:19:49,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396613002] [2021-04-28 21:19:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:19:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:19:49,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:49,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:19:49,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:49,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:49,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:19:49,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:19:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:19:49,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396613002] [2021-04-28 21:19:49,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:19:49,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:19:49,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469813041] [2021-04-28 21:19:49,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:19:49,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:19:49,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:19:49,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:19:49,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 380 [2021-04-28 21:19:49,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 142 transitions, 1212 flow. Second operand has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:49,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:19:49,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 380 [2021-04-28 21:19:49,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:19:58,642 INFO L129 PetriNetUnfolder]: 34560/67715 cut-off events. [2021-04-28 21:19:58,643 INFO L130 PetriNetUnfolder]: For 172195/582080 co-relation queries the response was YES. [2021-04-28 21:19:58,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 408640 conditions, 67715 events. 34560/67715 cut-off events. For 172195/582080 co-relation queries the response was YES. Maximal size of possible extension queue 13767. Compared 880853 event pairs, 2700 based on Foata normal form. 272/19633 useless extension candidates. Maximal degree in co-relation 408613. Up to 56869 conditions per place. [2021-04-28 21:19:59,152 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 4 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2021-04-28 21:19:59,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 144 transitions, 1236 flow [2021-04-28 21:19:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:19:59,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:19:59,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1055 transitions. [2021-04-28 21:19:59,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.694078947368421 [2021-04-28 21:19:59,159 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1055 transitions. [2021-04-28 21:19:59,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1055 transitions. [2021-04-28 21:19:59,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:19:59,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1055 transitions. [2021-04-28 21:19:59,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 263.75) internal successors, (1055), 4 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:59,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:59,167 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:19:59,167 INFO L185 Difference]: Start difference. First operand has 91 places, 142 transitions, 1212 flow. Second operand 4 states and 1055 transitions. [2021-04-28 21:19:59,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 144 transitions, 1236 flow [2021-04-28 21:21:47,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 144 transitions, 937 flow, removed 96 selfloop flow, removed 5 redundant places. [2021-04-28 21:21:47,874 INFO L241 Difference]: Finished difference. Result has 91 places, 143 transitions, 926 flow [2021-04-28 21:21:47,874 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=926, PETRI_PLACES=91, PETRI_TRANSITIONS=143} [2021-04-28 21:21:47,875 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -62 predicate places. [2021-04-28 21:21:47,875 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:21:47,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 143 transitions, 926 flow [2021-04-28 21:21:47,875 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 143 transitions, 926 flow [2021-04-28 21:21:47,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 143 transitions, 926 flow [2021-04-28 21:21:53,796 INFO L129 PetriNetUnfolder]: 31795/65524 cut-off events. [2021-04-28 21:21:53,796 INFO L130 PetriNetUnfolder]: For 132599/202694 co-relation queries the response was YES. [2021-04-28 21:21:54,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280629 conditions, 65524 events. 31795/65524 cut-off events. For 132599/202694 co-relation queries the response was YES. Maximal size of possible extension queue 12816. Compared 910100 event pairs, 2621 based on Foata normal form. 5/19828 useless extension candidates. Maximal degree in co-relation 280603. Up to 35128 conditions per place. [2021-04-28 21:21:55,640 INFO L146 LiptonReduction]: Number of co-enabled transitions 4450 [2021-04-28 21:23:05,508 INFO L158 LiptonReduction]: Checked pairs total: 2394 [2021-04-28 21:23:05,508 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:23:05,508 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77633 [2021-04-28 21:23:05,509 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 143 transitions, 926 flow [2021-04-28 21:23:05,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:05,511 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:23:05,511 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:23:05,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:23:05,511 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:23:05,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:23:05,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1105933505, now seen corresponding path program 1 times [2021-04-28 21:23:05,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:23:05,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410193857] [2021-04-28 21:23:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:23:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:23:05,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:05,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:05,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:05,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:05,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:05,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:05,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:05,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:23:05,638 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:23:05,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:23:05,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:23:05,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:23:05,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:23:05,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410193857] [2021-04-28 21:23:05,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:23:05,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 21:23:05,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946541945] [2021-04-28 21:23:05,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:23:05,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:23:05,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:23:05,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:23:05,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:23:05,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 143 transitions, 926 flow. Second operand has 7 states, 7 states have (on average 286.85714285714283) internal successors, (2008), 7 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:05,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:23:05,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:23:05,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:23:14,855 INFO L129 PetriNetUnfolder]: 33855/68519 cut-off events. [2021-04-28 21:23:14,855 INFO L130 PetriNetUnfolder]: For 108321/797122 co-relation queries the response was YES. [2021-04-28 21:23:16,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346823 conditions, 68519 events. 33855/68519 cut-off events. For 108321/797122 co-relation queries the response was YES. Maximal size of possible extension queue 14349. Compared 915427 event pairs, 0 based on Foata normal form. 1164/21036 useless extension candidates. Maximal degree in co-relation 346795. Up to 35965 conditions per place. [2021-04-28 21:23:16,239 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 6 selfloop transitions, 104 changer transitions 20/166 dead transitions. [2021-04-28 21:23:16,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 166 transitions, 1401 flow [2021-04-28 21:23:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 21:23:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 21:23:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3269 transitions. [2021-04-28 21:23:16,251 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7820574162679426 [2021-04-28 21:23:16,251 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3269 transitions. [2021-04-28 21:23:16,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3269 transitions. [2021-04-28 21:23:16,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:23:16,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3269 transitions. [2021-04-28 21:23:16,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 297.1818181818182) internal successors, (3269), 11 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:16,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:16,269 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:23:16,269 INFO L185 Difference]: Start difference. First operand has 91 places, 143 transitions, 926 flow. Second operand 11 states and 3269 transitions. [2021-04-28 21:23:16,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 166 transitions, 1401 flow [2021-04-28 21:24:17,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 166 transitions, 1391 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-04-28 21:24:17,410 INFO L241 Difference]: Finished difference. Result has 102 places, 143 transitions, 1177 flow [2021-04-28 21:24:17,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1177, PETRI_PLACES=102, PETRI_TRANSITIONS=143} [2021-04-28 21:24:17,411 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -51 predicate places. [2021-04-28 21:24:17,411 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:24:17,411 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 143 transitions, 1177 flow [2021-04-28 21:24:17,411 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 143 transitions, 1177 flow [2021-04-28 21:24:17,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 143 transitions, 1177 flow [2021-04-28 21:24:21,650 INFO L129 PetriNetUnfolder]: 21000/44739 cut-off events. [2021-04-28 21:24:21,650 INFO L130 PetriNetUnfolder]: For 64890/116240 co-relation queries the response was YES. [2021-04-28 21:24:22,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203657 conditions, 44739 events. 21000/44739 cut-off events. For 64890/116240 co-relation queries the response was YES. Maximal size of possible extension queue 12654. Compared 620418 event pairs, 0 based on Foata normal form. 1/12916 useless extension candidates. Maximal degree in co-relation 203628. Up to 29862 conditions per place. [2021-04-28 21:24:22,834 INFO L146 LiptonReduction]: Number of co-enabled transitions 4340 [2021-04-28 21:24:52,321 INFO L158 LiptonReduction]: Checked pairs total: 2325 [2021-04-28 21:24:52,321 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:24:52,321 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34910 [2021-04-28 21:24:52,323 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 143 transitions, 1177 flow [2021-04-28 21:24:52,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 286.85714285714283) internal successors, (2008), 7 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:52,323 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:24:52,324 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:24:52,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 21:24:52,324 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:24:52,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:24:52,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1313045275, now seen corresponding path program 1 times [2021-04-28 21:24:52,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:24:52,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345092672] [2021-04-28 21:24:52,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:24:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:24:52,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:24:52,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:24:52,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:24:52,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:24:52,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:24:52,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:24:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:24:52,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345092672] [2021-04-28 21:24:52,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:24:52,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:24:52,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798755360] [2021-04-28 21:24:52,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:24:52,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:24:52,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:24:52,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:24:52,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 380 [2021-04-28 21:24:52,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 143 transitions, 1177 flow. Second operand has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:24:52,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:24:52,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 380 [2021-04-28 21:24:52,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:03,509 INFO L129 PetriNetUnfolder]: 45387/89899 cut-off events. [2021-04-28 21:25:03,509 INFO L130 PetriNetUnfolder]: For 134620/634606 co-relation queries the response was YES. [2021-04-28 21:25:03,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407737 conditions, 89899 events. 45387/89899 cut-off events. For 134620/634606 co-relation queries the response was YES. Maximal size of possible extension queue 25086. Compared 1234104 event pairs, 0 based on Foata normal form. 82/23287 useless extension candidates. Maximal degree in co-relation 407706. Up to 61128 conditions per place. [2021-04-28 21:25:04,070 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 3 selfloop transitions, 2 changer transitions 10/144 dead transitions. [2021-04-28 21:25:04,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 144 transitions, 1189 flow [2021-04-28 21:25:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:25:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:25:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1026 transitions. [2021-04-28 21:25:04,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.675 [2021-04-28 21:25:04,076 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1026 transitions. [2021-04-28 21:25:04,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1026 transitions. [2021-04-28 21:25:04,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:04,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1026 transitions. [2021-04-28 21:25:04,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 256.5) internal successors, (1026), 4 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:04,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:04,083 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:04,083 INFO L185 Difference]: Start difference. First operand has 100 places, 143 transitions, 1177 flow. Second operand 4 states and 1026 transitions. [2021-04-28 21:25:04,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 144 transitions, 1189 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown