/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:42:24,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:42:24,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:42:24,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:42:24,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:42:24,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:42:24,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:42:24,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:42:24,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:42:24,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:42:24,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:42:24,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:42:24,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:42:24,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:42:24,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:42:24,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:42:24,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:42:24,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:42:24,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:42:24,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:42:24,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:42:24,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:42:24,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:42:24,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:42:24,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:42:24,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:42:24,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:42:24,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:42:24,438 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 22:42:24,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:42:24,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:42:24,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:42:24,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:42:24,468 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:42:24,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:42:24,469 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:42:24,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:42:24,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:42:24,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:42:24,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:42:24,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:42:24,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:42:24,471 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:42:24,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:42:24,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:42:24,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:42:24,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:42:24,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:42:24,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:42:24,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:42:24,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:42:24,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:42:24,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:42:24,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:42:24,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:42:24,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:42:24,475 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:42:24,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:42:24,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:42:24,475 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:42:24,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:42:24,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:42:24,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:42:24,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:42:24,897 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:42:24,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i [2021-04-28 22:42:24,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001886d15/310fe9a2454540f0bfd095af12a4b89e/FLAG2b922c679 [2021-04-28 22:42:25,812 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:42:25,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i [2021-04-28 22:42:25,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001886d15/310fe9a2454540f0bfd095af12a4b89e/FLAG2b922c679 [2021-04-28 22:42:26,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001886d15/310fe9a2454540f0bfd095af12a4b89e [2021-04-28 22:42:26,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:42:26,067 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:42:26,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:42:26,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:42:26,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:42:26,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f563b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26, skipping insertion in model container [2021-04-28 22:42:26,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:42:26,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:42:26,331 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i[948,961] [2021-04-28 22:42:26,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:42:26,604 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:42:26,619 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i[948,961] [2021-04-28 22:42:26,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:42:26,786 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:42:26,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26 WrapperNode [2021-04-28 22:42:26,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:42:26,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:42:26,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:42:26,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:42:26,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:42:26,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:42:26,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:42:26,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:42:26,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... [2021-04-28 22:42:26,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:42:26,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:42:26,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:42:26,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:42:27,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:42:27,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:42:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:42:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:42:27,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:42:27,129 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:42:27,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:42:27,130 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:42:27,131 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:42:27,131 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:42:27,131 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:42:27,131 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:42:27,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:42:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:42:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:42:27,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:42:27,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:42:27,134 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 22:42:29,314 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:42:29,315 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:42:29,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:42:29 BoogieIcfgContainer [2021-04-28 22:42:29,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:42:29,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:42:29,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:42:29,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:42:29,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:42:26" (1/3) ... [2021-04-28 22:42:29,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ccffc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:42:29, skipping insertion in model container [2021-04-28 22:42:29,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:42:26" (2/3) ... [2021-04-28 22:42:29,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ccffc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:42:29, skipping insertion in model container [2021-04-28 22:42:29,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:42:29" (3/3) ... [2021-04-28 22:42:29,326 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_rmo.opt.i [2021-04-28 22:42:29,335 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:42:29,340 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:42:29,341 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:42:29,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,382 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,382 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,385 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,385 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,386 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,386 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,388 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,390 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,391 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,391 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,391 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,392 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,392 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,392 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,393 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,393 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,393 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,393 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,393 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,393 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,394 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,394 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,394 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,394 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,395 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,395 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,395 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,395 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,395 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,396 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,396 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,396 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,396 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,397 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,397 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,397 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,397 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,398 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,398 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,398 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,398 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,398 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,398 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,399 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,399 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,400 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,400 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,403 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,403 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,403 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,406 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,406 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,409 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,409 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,410 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,410 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,410 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,410 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,410 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,410 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,411 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,411 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,413 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:42:29,414 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:42:29,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:42:29,463 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:42:29,463 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:42:29,464 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:42:29,464 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:42:29,464 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:42:29,464 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:42:29,464 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:42:29,464 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:42:29,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:42:29,538 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:42:29,538 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:42:29,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:42:29,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:42:29,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-04-28 22:42:29,553 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:42:29,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:42:29,574 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:42:29,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-04-28 22:42:29,605 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:42:29,605 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:42:29,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:42:29,611 INFO L146 LiptonReduction]: Number of co-enabled transitions 2406 [2021-04-28 22:42:31,452 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:42:31,961 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:42:34,277 WARN L205 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:42:35,355 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:42:36,001 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-28 22:42:38,740 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:42:38,879 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:42:39,444 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:42:39,660 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:42:43,212 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 22:42:43,762 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:42:45,914 WARN L205 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 267 DAG size of output: 266 [2021-04-28 22:42:47,137 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 22:42:48,259 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:42:48,806 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:42:49,955 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:42:51,098 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:42:52,242 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-04-28 22:42:52,841 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:42:54,020 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:42:55,207 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:42:58,387 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:42:58,987 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:43:00,273 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:43:01,565 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:43:02,186 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:43:02,827 WARN L205 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:43:04,117 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:43:05,444 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:43:06,104 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:43:06,779 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:43:08,135 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:43:09,533 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:43:10,215 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:43:10,886 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:43:12,251 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:43:13,621 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:43:17,288 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:43:18,307 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:20,919 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:43:21,644 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:43:23,131 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:43:24,616 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:43:25,341 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:43:26,076 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:43:27,545 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:43:29,013 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:43:29,753 WARN L205 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:43:30,494 WARN L205 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:43:32,063 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:43:33,630 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:43:35,663 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:43:35,778 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:43:35,892 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:43:36,011 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:43:36,130 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:43:36,239 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:43:36,349 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:43:36,462 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:43:37,648 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:43:37,753 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:43:37,859 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:43:37,965 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:43:38,076 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:38,188 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:38,299 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:38,409 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:38,520 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:38,631 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:38,742 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:38,855 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:38,968 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:39,079 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:39,191 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:39,302 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:40,035 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:43:40,486 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:43:40,655 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:43:40,822 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:43:40,989 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:43:41,168 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:43:41,347 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:43:41,524 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:43:41,702 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:43:41,813 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:41,923 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:42,032 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:42,145 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:43:43,187 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:43:43,622 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:43:43,779 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:43:43,934 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:43:44,086 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:43:44,225 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:43:44,356 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:43:44,496 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:43:44,639 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:43:45,117 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:43:45,266 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:43:45,406 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:43:45,548 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:43:45,714 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:43:45,882 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:43:46,053 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:43:46,223 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:43:46,366 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:43:46,508 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:43:46,646 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:43:46,781 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:43:46,913 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:43:47,042 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:43:47,174 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:43:47,314 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:43:47,473 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:43:47,637 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:43:47,808 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:43:47,977 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:43:48,161 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:43:48,328 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:43:48,495 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:43:48,657 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:43:48,800 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:43:48,944 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:43:49,095 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:43:49,244 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:43:49,528 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:49,775 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:50,046 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:50,319 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:50,582 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:50,855 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:51,136 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:51,403 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:51,658 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:51,909 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:52,176 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:52,449 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:43:52,646 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:43:52,839 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:43:53,030 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:43:53,215 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:43:53,433 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:43:53,650 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:43:53,865 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:43:54,071 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:43:54,288 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:43:54,505 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:43:54,713 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:43:54,936 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:43:55,167 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:43:55,398 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:43:55,641 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:43:55,880 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:43:56,130 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:43:56,375 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:43:56,641 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:43:56,906 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:43:57,147 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:43:57,366 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:43:57,595 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:43:57,820 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:43:58,067 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:43:58,318 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:43:58,582 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:43:58,836 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:43:59,520 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-28 22:43:59,847 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-04-28 22:44:00,523 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-28 22:44:00,848 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-04-28 22:44:01,545 WARN L205 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-04-28 22:44:01,886 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 22:44:02,596 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-04-28 22:44:02,933 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 22:44:03,208 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:44:03,470 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:44:03,728 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:44:03,982 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:44:04,212 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:44:04,436 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:44:04,658 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:44:04,881 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:44:05,072 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:44:05,271 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:44:05,484 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:44:05,690 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:44:05,891 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:44:06,094 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:44:06,283 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:44:06,462 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:44:06,526 INFO L158 LiptonReduction]: Checked pairs total: 22454 [2021-04-28 22:44:06,526 INFO L160 LiptonReduction]: Total number of compositions: 247 [2021-04-28 22:44:06,532 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96981 [2021-04-28 22:44:06,559 INFO L129 PetriNetUnfolder]: 1/92 cut-off events. [2021-04-28 22:44:06,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:44:06,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:06,561 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:06,561 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:06,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:06,568 INFO L82 PathProgramCache]: Analyzing trace with hash 50815099, now seen corresponding path program 1 times [2021-04-28 22:44:06,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:06,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824123512] [2021-04-28 22:44:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:06,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:06,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:44:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:06,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824123512] [2021-04-28 22:44:06,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:06,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:44:06,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125227962] [2021-04-28 22:44:06,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:44:06,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:06,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:44:06,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:44:06,939 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 359 [2021-04-28 22:44:06,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:06,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:06,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 359 [2021-04-28 22:44:06,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:07,358 INFO L129 PetriNetUnfolder]: 107/453 cut-off events. [2021-04-28 22:44:07,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:44:07,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 453 events. 107/453 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3341 event pairs, 15 based on Foata normal form. 6/217 useless extension candidates. Maximal degree in co-relation 606. Up to 157 conditions per place. [2021-04-28 22:44:07,364 INFO L132 encePairwiseOnDemand]: 343/359 looper letters, 7 selfloop transitions, 2 changer transitions 97/146 dead transitions. [2021-04-28 22:44:07,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 146 transitions, 392 flow [2021-04-28 22:44:07,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:44:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:44:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 904 transitions. [2021-04-28 22:44:07,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8393686165273909 [2021-04-28 22:44:07,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 904 transitions. [2021-04-28 22:44:07,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 904 transitions. [2021-04-28 22:44:07,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:07,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 904 transitions. [2021-04-28 22:44:07,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:07,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:07,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:07,417 INFO L185 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 904 transitions. [2021-04-28 22:44:07,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 146 transitions, 392 flow [2021-04-28 22:44:07,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 146 transitions, 388 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:44:07,427 INFO L241 Difference]: Finished difference. Result has 141 places, 46 transitions, 104 flow [2021-04-28 22:44:07,429 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=141, PETRI_TRANSITIONS=46} [2021-04-28 22:44:07,430 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2021-04-28 22:44:07,430 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:07,431 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 46 transitions, 104 flow [2021-04-28 22:44:07,431 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 46 transitions, 104 flow [2021-04-28 22:44:07,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 104 flow [2021-04-28 22:44:07,439 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-04-28 22:44:07,439 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:44:07,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 139 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:44:07,440 INFO L146 LiptonReduction]: Number of co-enabled transitions 1278 [2021-04-28 22:44:07,524 INFO L158 LiptonReduction]: Checked pairs total: 1274 [2021-04-28 22:44:07,524 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:07,524 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-04-28 22:44:07,526 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 104 flow [2021-04-28 22:44:07,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:07,527 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:07,527 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:07,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:44:07,528 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:07,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:07,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1588779353, now seen corresponding path program 1 times [2021-04-28 22:44:07,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:07,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704736859] [2021-04-28 22:44:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:07,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:07,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:44:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:07,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704736859] [2021-04-28 22:44:07,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:07,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:44:07,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15114297] [2021-04-28 22:44:07,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:44:07,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:07,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:44:07,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:44:07,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 359 [2021-04-28 22:44:07,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:07,651 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:07,651 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 359 [2021-04-28 22:44:07,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:07,674 INFO L129 PetriNetUnfolder]: 3/60 cut-off events. [2021-04-28 22:44:07,674 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:44:07,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 60 events. 3/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 207 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-04-28 22:44:07,675 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2021-04-28 22:44:07,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 48 transitions, 120 flow [2021-04-28 22:44:07,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:44:07,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:44:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 745 transitions. [2021-04-28 22:44:07,681 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.691736304549675 [2021-04-28 22:44:07,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 745 transitions. [2021-04-28 22:44:07,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 745 transitions. [2021-04-28 22:44:07,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:07,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 745 transitions. [2021-04-28 22:44:07,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:07,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:07,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:07,690 INFO L185 Difference]: Start difference. First operand has 57 places, 46 transitions, 104 flow. Second operand 3 states and 745 transitions. [2021-04-28 22:44:07,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 48 transitions, 120 flow [2021-04-28 22:44:07,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:44:07,692 INFO L241 Difference]: Finished difference. Result has 58 places, 48 transitions, 119 flow [2021-04-28 22:44:07,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2021-04-28 22:44:07,693 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -88 predicate places. [2021-04-28 22:44:07,693 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:07,693 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:44:07,694 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:44:07,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 119 flow [2021-04-28 22:44:07,703 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2021-04-28 22:44:07,703 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:44:07,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 58 events. 3/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 199 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-04-28 22:44:07,706 INFO L146 LiptonReduction]: Number of co-enabled transitions 1388 [2021-04-28 22:44:08,114 INFO L158 LiptonReduction]: Checked pairs total: 1056 [2021-04-28 22:44:08,114 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:08,115 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 422 [2021-04-28 22:44:08,117 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 119 flow [2021-04-28 22:44:08,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:08,118 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:08,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:44:08,118 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:08,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:08,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1370520947, now seen corresponding path program 1 times [2021-04-28 22:44:08,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:08,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214406413] [2021-04-28 22:44:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:08,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:08,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:44:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:08,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214406413] [2021-04-28 22:44:08,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:08,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:44:08,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16617193] [2021-04-28 22:44:08,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:44:08,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:08,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:44:08,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:44:08,209 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2021-04-28 22:44:08,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:08,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2021-04-28 22:44:08,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:08,241 INFO L129 PetriNetUnfolder]: 10/89 cut-off events. [2021-04-28 22:44:08,241 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-04-28 22:44:08,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 89 events. 10/89 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 360 event pairs, 3 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 127. Up to 19 conditions per place. [2021-04-28 22:44:08,243 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2021-04-28 22:44:08,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:44:08,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:44:08,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:44:08,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2021-04-28 22:44:08,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7000928505106778 [2021-04-28 22:44:08,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2021-04-28 22:44:08,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2021-04-28 22:44:08,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:08,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2021-04-28 22:44:08,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,257 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,257 INFO L185 Difference]: Start difference. First operand has 58 places, 48 transitions, 119 flow. Second operand 3 states and 754 transitions. [2021-04-28 22:44:08,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:44:08,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 50 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:44:08,260 INFO L241 Difference]: Finished difference. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:44:08,260 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2021-04-28 22:44:08,260 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -86 predicate places. [2021-04-28 22:44:08,260 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:08,261 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:44:08,261 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:44:08,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:44:08,274 INFO L129 PetriNetUnfolder]: 7/76 cut-off events. [2021-04-28 22:44:08,274 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-04-28 22:44:08,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 76 events. 7/76 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 318 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 109. Up to 15 conditions per place. [2021-04-28 22:44:08,277 INFO L146 LiptonReduction]: Number of co-enabled transitions 1486 [2021-04-28 22:44:08,431 INFO L158 LiptonReduction]: Checked pairs total: 800 [2021-04-28 22:44:08,431 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:08,432 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-04-28 22:44:08,434 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 135 flow [2021-04-28 22:44:08,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,435 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:08,435 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:08,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:44:08,435 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:08,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:08,436 INFO L82 PathProgramCache]: Analyzing trace with hash 463518869, now seen corresponding path program 1 times [2021-04-28 22:44:08,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:08,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127711388] [2021-04-28 22:44:08,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:08,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:08,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:44:08,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:08,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:44:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:08,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127711388] [2021-04-28 22:44:08,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:08,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:44:08,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209725836] [2021-04-28 22:44:08,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:44:08,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:08,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:44:08,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:44:08,563 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2021-04-28 22:44:08,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:08,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2021-04-28 22:44:08,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:08,598 INFO L129 PetriNetUnfolder]: 4/87 cut-off events. [2021-04-28 22:44:08,598 INFO L130 PetriNetUnfolder]: For 26/61 co-relation queries the response was YES. [2021-04-28 22:44:08,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 87 events. 4/87 cut-off events. For 26/61 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 413 event pairs, 1 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 134. Up to 15 conditions per place. [2021-04-28 22:44:08,600 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2021-04-28 22:44:08,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 147 flow [2021-04-28 22:44:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:44:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:44:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2021-04-28 22:44:08,605 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6991643454038997 [2021-04-28 22:44:08,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2021-04-28 22:44:08,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2021-04-28 22:44:08,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:08,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2021-04-28 22:44:08,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,614 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 135 flow. Second operand 3 states and 753 transitions. [2021-04-28 22:44:08,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 147 flow [2021-04-28 22:44:08,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 50 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:44:08,617 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 143 flow [2021-04-28 22:44:08,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 22:44:08,618 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -84 predicate places. [2021-04-28 22:44:08,618 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:08,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 143 flow [2021-04-28 22:44:08,618 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 143 flow [2021-04-28 22:44:08,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 143 flow [2021-04-28 22:44:08,632 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 22:44:08,632 INFO L130 PetriNetUnfolder]: For 20/27 co-relation queries the response was YES. [2021-04-28 22:44:08,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 78 events. 4/78 cut-off events. For 20/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 334 event pairs, 2 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 114. Up to 13 conditions per place. [2021-04-28 22:44:08,635 INFO L146 LiptonReduction]: Number of co-enabled transitions 1484 [2021-04-28 22:44:08,815 INFO L158 LiptonReduction]: Checked pairs total: 800 [2021-04-28 22:44:08,815 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:08,815 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 197 [2021-04-28 22:44:08,816 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 143 flow [2021-04-28 22:44:08,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:08,818 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:08,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:44:08,818 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:08,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:08,818 INFO L82 PathProgramCache]: Analyzing trace with hash 463520822, now seen corresponding path program 1 times [2021-04-28 22:44:08,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:08,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427981522] [2021-04-28 22:44:08,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:08,913 INFO L142 QuantifierPusher]: treesize reduction 20, result has 41.2 percent of original size [2021-04-28 22:44:08,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:44:08,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:44:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:08,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427981522] [2021-04-28 22:44:08,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:08,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:44:08,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675491642] [2021-04-28 22:44:08,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:44:08,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:08,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:44:08,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:44:08,950 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 359 [2021-04-28 22:44:08,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 216.75) internal successors, (867), 4 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:08,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:08,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 359 [2021-04-28 22:44:08,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:09,097 INFO L129 PetriNetUnfolder]: 91/332 cut-off events. [2021-04-28 22:44:09,097 INFO L130 PetriNetUnfolder]: For 242/310 co-relation queries the response was YES. [2021-04-28 22:44:09,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 332 events. 91/332 cut-off events. For 242/310 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2103 event pairs, 24 based on Foata normal form. 9/230 useless extension candidates. Maximal degree in co-relation 630. Up to 125 conditions per place. [2021-04-28 22:44:09,139 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 8 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2021-04-28 22:44:09,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 53 transitions, 169 flow [2021-04-28 22:44:09,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:44:09,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:44:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 659 transitions. [2021-04-28 22:44:09,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6118848653667596 [2021-04-28 22:44:09,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 659 transitions. [2021-04-28 22:44:09,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 659 transitions. [2021-04-28 22:44:09,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:09,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 659 transitions. [2021-04-28 22:44:09,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.66666666666666) internal successors, (659), 3 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,154 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,155 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 143 flow. Second operand 3 states and 659 transitions. [2021-04-28 22:44:09,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 53 transitions, 169 flow [2021-04-28 22:44:09,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 164 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:44:09,158 INFO L241 Difference]: Finished difference. Result has 64 places, 50 transitions, 146 flow [2021-04-28 22:44:09,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2021-04-28 22:44:09,158 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -82 predicate places. [2021-04-28 22:44:09,158 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:09,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 50 transitions, 146 flow [2021-04-28 22:44:09,159 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 50 transitions, 146 flow [2021-04-28 22:44:09,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 50 transitions, 146 flow [2021-04-28 22:44:09,171 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 22:44:09,172 INFO L130 PetriNetUnfolder]: For 23/28 co-relation queries the response was YES. [2021-04-28 22:44:09,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 78 events. 4/78 cut-off events. For 23/28 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 336 event pairs, 2 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 119. Up to 13 conditions per place. [2021-04-28 22:44:09,174 INFO L146 LiptonReduction]: Number of co-enabled transitions 1480 [2021-04-28 22:44:09,506 INFO L158 LiptonReduction]: Checked pairs total: 730 [2021-04-28 22:44:09,506 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:09,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 349 [2021-04-28 22:44:09,508 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 146 flow [2021-04-28 22:44:09,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 216.75) internal successors, (867), 4 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:09,509 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:09,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:44:09,510 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:09,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:09,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1484232164, now seen corresponding path program 1 times [2021-04-28 22:44:09,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:09,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088826602] [2021-04-28 22:44:09,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:09,599 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-04-28 22:44:09,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:44:09,616 INFO L142 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size [2021-04-28 22:44:09,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 22:44:09,630 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 22:44:09,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:44:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:09,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088826602] [2021-04-28 22:44:09,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:09,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:44:09,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512975499] [2021-04-28 22:44:09,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:44:09,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:09,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:44:09,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:44:09,651 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 359 [2021-04-28 22:44:09,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 215.8) internal successors, (1079), 5 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:09,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 359 [2021-04-28 22:44:09,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:09,814 INFO L129 PetriNetUnfolder]: 72/311 cut-off events. [2021-04-28 22:44:09,814 INFO L130 PetriNetUnfolder]: For 247/292 co-relation queries the response was YES. [2021-04-28 22:44:09,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 311 events. 72/311 cut-off events. For 247/292 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2050 event pairs, 10 based on Foata normal form. 9/211 useless extension candidates. Maximal degree in co-relation 592. Up to 81 conditions per place. [2021-04-28 22:44:09,819 INFO L132 encePairwiseOnDemand]: 354/359 looper letters, 10 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2021-04-28 22:44:09,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 57 transitions, 188 flow [2021-04-28 22:44:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:44:09,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:44:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 875 transitions. [2021-04-28 22:44:09,825 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6093314763231198 [2021-04-28 22:44:09,825 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 875 transitions. [2021-04-28 22:44:09,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 875 transitions. [2021-04-28 22:44:09,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:09,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 875 transitions. [2021-04-28 22:44:09,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 218.75) internal successors, (875), 4 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,834 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,834 INFO L185 Difference]: Start difference. First operand has 64 places, 50 transitions, 146 flow. Second operand 4 states and 875 transitions. [2021-04-28 22:44:09,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 57 transitions, 188 flow [2021-04-28 22:44:09,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 57 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:44:09,838 INFO L241 Difference]: Finished difference. Result has 66 places, 52 transitions, 163 flow [2021-04-28 22:44:09,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2021-04-28 22:44:09,838 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -80 predicate places. [2021-04-28 22:44:09,838 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:09,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 52 transitions, 163 flow [2021-04-28 22:44:09,839 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 52 transitions, 163 flow [2021-04-28 22:44:09,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 52 transitions, 163 flow [2021-04-28 22:44:09,865 INFO L129 PetriNetUnfolder]: 20/144 cut-off events. [2021-04-28 22:44:09,865 INFO L130 PetriNetUnfolder]: For 106/117 co-relation queries the response was YES. [2021-04-28 22:44:09,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 144 events. 20/144 cut-off events. For 106/117 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 763 event pairs, 11 based on Foata normal form. 1/84 useless extension candidates. Maximal degree in co-relation 276. Up to 33 conditions per place. [2021-04-28 22:44:09,870 INFO L146 LiptonReduction]: Number of co-enabled transitions 1578 [2021-04-28 22:44:09,968 INFO L158 LiptonReduction]: Checked pairs total: 320 [2021-04-28 22:44:09,968 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:09,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-04-28 22:44:09,970 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 163 flow [2021-04-28 22:44:09,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 215.8) internal successors, (1079), 5 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:09,970 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:09,970 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:09,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:44:09,971 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:09,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:09,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1119152133, now seen corresponding path program 1 times [2021-04-28 22:44:09,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:09,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278616969] [2021-04-28 22:44:09,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:10,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:10,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:44:10,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:10,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:44:10,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:10,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:44:10,099 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-04-28 22:44:10,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 22:44:10,152 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-04-28 22:44:10,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 22:44:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:10,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278616969] [2021-04-28 22:44:10,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:10,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:44:10,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140884166] [2021-04-28 22:44:10,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:44:10,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:10,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:44:10,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:44:10,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 359 [2021-04-28 22:44:10,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:10,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:10,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 359 [2021-04-28 22:44:10,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:10,436 INFO L129 PetriNetUnfolder]: 87/346 cut-off events. [2021-04-28 22:44:10,437 INFO L130 PetriNetUnfolder]: For 261/288 co-relation queries the response was YES. [2021-04-28 22:44:10,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 346 events. 87/346 cut-off events. For 261/288 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2308 event pairs, 17 based on Foata normal form. 5/239 useless extension candidates. Maximal degree in co-relation 782. Up to 117 conditions per place. [2021-04-28 22:44:10,444 INFO L132 encePairwiseOnDemand]: 352/359 looper letters, 11 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2021-04-28 22:44:10,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 62 transitions, 237 flow [2021-04-28 22:44:10,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:44:10,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:44:10,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1097 transitions. [2021-04-28 22:44:10,451 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6111420612813371 [2021-04-28 22:44:10,451 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1097 transitions. [2021-04-28 22:44:10,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1097 transitions. [2021-04-28 22:44:10,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:10,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1097 transitions. [2021-04-28 22:44:10,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 219.4) internal successors, (1097), 5 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:10,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:10,460 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:10,460 INFO L185 Difference]: Start difference. First operand has 66 places, 52 transitions, 163 flow. Second operand 5 states and 1097 transitions. [2021-04-28 22:44:10,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 62 transitions, 237 flow [2021-04-28 22:44:10,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 229 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:44:10,466 INFO L241 Difference]: Finished difference. Result has 71 places, 58 transitions, 219 flow [2021-04-28 22:44:10,466 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=71, PETRI_TRANSITIONS=58} [2021-04-28 22:44:10,466 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -75 predicate places. [2021-04-28 22:44:10,466 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:10,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 58 transitions, 219 flow [2021-04-28 22:44:10,467 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 58 transitions, 219 flow [2021-04-28 22:44:10,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 58 transitions, 219 flow [2021-04-28 22:44:10,521 INFO L129 PetriNetUnfolder]: 53/273 cut-off events. [2021-04-28 22:44:10,521 INFO L130 PetriNetUnfolder]: For 281/293 co-relation queries the response was YES. [2021-04-28 22:44:10,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 273 events. 53/273 cut-off events. For 281/293 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1796 event pairs, 11 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 651. Up to 81 conditions per place. [2021-04-28 22:44:10,532 INFO L146 LiptonReduction]: Number of co-enabled transitions 1856 [2021-04-28 22:44:10,537 INFO L158 LiptonReduction]: Checked pairs total: 310 [2021-04-28 22:44:10,538 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:10,538 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-04-28 22:44:10,539 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 58 transitions, 219 flow [2021-04-28 22:44:10,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:10,540 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:10,541 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:10,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:44:10,542 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:10,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1472046139, now seen corresponding path program 2 times [2021-04-28 22:44:10,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:10,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157442433] [2021-04-28 22:44:10,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:10,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:10,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:44:10,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:10,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:44:10,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:10,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 22:44:10,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:10,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 22:44:10,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:10,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 22:44:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:10,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157442433] [2021-04-28 22:44:10,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:10,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:44:10,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765420591] [2021-04-28 22:44:10,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:44:10,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:10,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:44:10,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:44:10,828 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 359 [2021-04-28 22:44:10,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 58 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 208.85714285714286) internal successors, (1462), 7 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:10,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:10,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 359 [2021-04-28 22:44:10,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:11,106 INFO L129 PetriNetUnfolder]: 90/380 cut-off events. [2021-04-28 22:44:11,107 INFO L130 PetriNetUnfolder]: For 406/440 co-relation queries the response was YES. [2021-04-28 22:44:11,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 380 events. 90/380 cut-off events. For 406/440 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2689 event pairs, 7 based on Foata normal form. 9/263 useless extension candidates. Maximal degree in co-relation 996. Up to 111 conditions per place. [2021-04-28 22:44:11,115 INFO L132 encePairwiseOnDemand]: 354/359 looper letters, 14 selfloop transitions, 9 changer transitions 0/66 dead transitions. [2021-04-28 22:44:11,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 66 transitions, 307 flow [2021-04-28 22:44:11,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:44:11,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:44:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1056 transitions. [2021-04-28 22:44:11,123 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5883008356545961 [2021-04-28 22:44:11,123 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1056 transitions. [2021-04-28 22:44:11,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1056 transitions. [2021-04-28 22:44:11,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:11,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1056 transitions. [2021-04-28 22:44:11,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 211.2) internal successors, (1056), 5 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,135 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,135 INFO L185 Difference]: Start difference. First operand has 71 places, 58 transitions, 219 flow. Second operand 5 states and 1056 transitions. [2021-04-28 22:44:11,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 66 transitions, 307 flow [2021-04-28 22:44:11,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 66 transitions, 300 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:44:11,140 INFO L241 Difference]: Finished difference. Result has 75 places, 61 transitions, 262 flow [2021-04-28 22:44:11,140 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=75, PETRI_TRANSITIONS=61} [2021-04-28 22:44:11,140 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -71 predicate places. [2021-04-28 22:44:11,140 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:11,140 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 61 transitions, 262 flow [2021-04-28 22:44:11,141 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 61 transitions, 262 flow [2021-04-28 22:44:11,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 61 transitions, 262 flow [2021-04-28 22:44:11,197 INFO L129 PetriNetUnfolder]: 48/259 cut-off events. [2021-04-28 22:44:11,197 INFO L130 PetriNetUnfolder]: For 342/354 co-relation queries the response was YES. [2021-04-28 22:44:11,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 259 events. 48/259 cut-off events. For 342/354 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1627 event pairs, 15 based on Foata normal form. 2/163 useless extension candidates. Maximal degree in co-relation 636. Up to 67 conditions per place. [2021-04-28 22:44:11,207 INFO L146 LiptonReduction]: Number of co-enabled transitions 1990 [2021-04-28 22:44:11,213 INFO L158 LiptonReduction]: Checked pairs total: 390 [2021-04-28 22:44:11,213 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:11,213 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-04-28 22:44:11,215 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 61 transitions, 262 flow [2021-04-28 22:44:11,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 208.85714285714286) internal successors, (1462), 7 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:11,216 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:11,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:44:11,217 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:11,217 INFO L82 PathProgramCache]: Analyzing trace with hash 912660513, now seen corresponding path program 3 times [2021-04-28 22:44:11,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:11,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943011557] [2021-04-28 22:44:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:11,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:11,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:44:11,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:11,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:44:11,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:11,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:44:11,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:11,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:44:11,359 INFO L142 QuantifierPusher]: treesize reduction 26, result has 56.7 percent of original size [2021-04-28 22:44:11,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 22:44:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:11,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943011557] [2021-04-28 22:44:11,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:11,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:44:11,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902078139] [2021-04-28 22:44:11,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:44:11,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:11,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:44:11,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:44:11,416 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 359 [2021-04-28 22:44:11,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 61 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 214.0) internal successors, (1284), 6 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:11,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 359 [2021-04-28 22:44:11,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:11,764 INFO L129 PetriNetUnfolder]: 79/406 cut-off events. [2021-04-28 22:44:11,765 INFO L130 PetriNetUnfolder]: For 745/781 co-relation queries the response was YES. [2021-04-28 22:44:11,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 406 events. 79/406 cut-off events. For 745/781 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3043 event pairs, 3 based on Foata normal form. 15/281 useless extension candidates. Maximal degree in co-relation 1081. Up to 92 conditions per place. [2021-04-28 22:44:11,772 INFO L132 encePairwiseOnDemand]: 354/359 looper letters, 12 selfloop transitions, 12 changer transitions 0/67 dead transitions. [2021-04-28 22:44:11,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 67 transitions, 342 flow [2021-04-28 22:44:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 22:44:11,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 22:44:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1294 transitions. [2021-04-28 22:44:11,779 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6007428040854225 [2021-04-28 22:44:11,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1294 transitions. [2021-04-28 22:44:11,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1294 transitions. [2021-04-28 22:44:11,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:11,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1294 transitions. [2021-04-28 22:44:11,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.66666666666666) internal successors, (1294), 6 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,790 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 359.0) internal successors, (2513), 7 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,790 INFO L185 Difference]: Start difference. First operand has 75 places, 61 transitions, 262 flow. Second operand 6 states and 1294 transitions. [2021-04-28 22:44:11,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 67 transitions, 342 flow [2021-04-28 22:44:11,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 67 transitions, 328 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-04-28 22:44:11,797 INFO L241 Difference]: Finished difference. Result has 80 places, 62 transitions, 293 flow [2021-04-28 22:44:11,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=293, PETRI_PLACES=80, PETRI_TRANSITIONS=62} [2021-04-28 22:44:11,798 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -66 predicate places. [2021-04-28 22:44:11,798 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:11,798 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 62 transitions, 293 flow [2021-04-28 22:44:11,798 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 62 transitions, 293 flow [2021-04-28 22:44:11,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 62 transitions, 293 flow [2021-04-28 22:44:11,848 INFO L129 PetriNetUnfolder]: 42/271 cut-off events. [2021-04-28 22:44:11,848 INFO L130 PetriNetUnfolder]: For 455/467 co-relation queries the response was YES. [2021-04-28 22:44:11,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 271 events. 42/271 cut-off events. For 455/467 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1814 event pairs, 10 based on Foata normal form. 2/166 useless extension candidates. Maximal degree in co-relation 686. Up to 66 conditions per place. [2021-04-28 22:44:11,858 INFO L146 LiptonReduction]: Number of co-enabled transitions 2034 [2021-04-28 22:44:11,864 INFO L158 LiptonReduction]: Checked pairs total: 422 [2021-04-28 22:44:11,864 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:11,864 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-04-28 22:44:11,866 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 62 transitions, 293 flow [2021-04-28 22:44:11,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 214.0) internal successors, (1284), 6 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:11,867 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:11,867 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:11,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:44:11,867 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:11,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:11,868 INFO L82 PathProgramCache]: Analyzing trace with hash 867729919, now seen corresponding path program 1 times [2021-04-28 22:44:11,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:11,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365738096] [2021-04-28 22:44:11,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:11,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:11,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:44:11,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:11,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:44:11,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:11,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:44:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:11,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365738096] [2021-04-28 22:44:11,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:11,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:44:11,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490743139] [2021-04-28 22:44:11,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:44:11,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:11,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:44:11,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:44:12,000 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:44:12,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 62 transitions, 293 flow. Second operand has 4 states, 4 states have (on average 267.75) internal successors, (1071), 4 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:12,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:12,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:44:12,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:21,864 INFO L129 PetriNetUnfolder]: 57853/83034 cut-off events. [2021-04-28 22:44:21,864 INFO L130 PetriNetUnfolder]: For 10341/30680 co-relation queries the response was YES. [2021-04-28 22:44:22,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171260 conditions, 83034 events. 57853/83034 cut-off events. For 10341/30680 co-relation queries the response was YES. Maximal size of possible extension queue 15330. Compared 762091 event pairs, 31962 based on Foata normal form. 1628/23832 useless extension candidates. Maximal degree in co-relation 171237. Up to 53866 conditions per place. [2021-04-28 22:44:22,811 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 34 selfloop transitions, 32 changer transitions 0/105 dead transitions. [2021-04-28 22:44:22,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 105 transitions, 511 flow [2021-04-28 22:44:22,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:44:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:44:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1401 transitions. [2021-04-28 22:44:22,819 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7805013927576602 [2021-04-28 22:44:22,819 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1401 transitions. [2021-04-28 22:44:22,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1401 transitions. [2021-04-28 22:44:22,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:22,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1401 transitions. [2021-04-28 22:44:22,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 280.2) internal successors, (1401), 5 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:22,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:22,834 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:22,835 INFO L185 Difference]: Start difference. First operand has 80 places, 62 transitions, 293 flow. Second operand 5 states and 1401 transitions. [2021-04-28 22:44:22,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 105 transitions, 511 flow [2021-04-28 22:44:22,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 492 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-04-28 22:44:22,855 INFO L241 Difference]: Finished difference. Result has 83 places, 92 transitions, 516 flow [2021-04-28 22:44:22,856 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=516, PETRI_PLACES=83, PETRI_TRANSITIONS=92} [2021-04-28 22:44:22,856 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -63 predicate places. [2021-04-28 22:44:22,856 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:22,857 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 92 transitions, 516 flow [2021-04-28 22:44:22,857 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 92 transitions, 516 flow [2021-04-28 22:44:22,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 92 transitions, 516 flow [2021-04-28 22:44:29,641 INFO L129 PetriNetUnfolder]: 47691/68489 cut-off events. [2021-04-28 22:44:29,641 INFO L130 PetriNetUnfolder]: For 24412/138679 co-relation queries the response was YES. [2021-04-28 22:44:30,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201198 conditions, 68489 events. 47691/68489 cut-off events. For 24412/138679 co-relation queries the response was YES. Maximal size of possible extension queue 10926. Compared 617063 event pairs, 28447 based on Foata normal form. 24/19914 useless extension candidates. Maximal degree in co-relation 201175. Up to 64912 conditions per place. [2021-04-28 22:44:30,739 INFO L146 LiptonReduction]: Number of co-enabled transitions 3070 [2021-04-28 22:44:31,312 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-04-28 22:44:31,482 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:44:32,292 WARN L205 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-04-28 22:44:32,591 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:44:32,644 INFO L158 LiptonReduction]: Checked pairs total: 1163 [2021-04-28 22:44:32,644 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 22:44:32,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9788 [2021-04-28 22:44:32,645 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 93 transitions, 526 flow [2021-04-28 22:44:32,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 267.75) internal successors, (1071), 4 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:32,646 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:32,646 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:32,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 22:44:32,647 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:32,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:32,647 INFO L82 PathProgramCache]: Analyzing trace with hash -871324659, now seen corresponding path program 1 times [2021-04-28 22:44:32,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:32,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019152606] [2021-04-28 22:44:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:32,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:32,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:44:32,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:32,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:44:32,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:32,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:44:32,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:32,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:44:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:32,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019152606] [2021-04-28 22:44:32,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:32,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:44:32,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866280258] [2021-04-28 22:44:32,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:44:32,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:32,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:44:32,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:44:32,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 360 [2021-04-28 22:44:32,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 93 transitions, 526 flow. Second operand has 5 states, 5 states have (on average 268.8) internal successors, (1344), 5 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:32,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:32,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 360 [2021-04-28 22:44:32,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:44:43,845 INFO L129 PetriNetUnfolder]: 64651/96615 cut-off events. [2021-04-28 22:44:43,845 INFO L130 PetriNetUnfolder]: For 47652/2101247 co-relation queries the response was YES. [2021-04-28 22:44:44,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374666 conditions, 96615 events. 64651/96615 cut-off events. For 47652/2101247 co-relation queries the response was YES. Maximal size of possible extension queue 20238. Compared 935209 event pairs, 13869 based on Foata normal form. 1811/31001 useless extension candidates. Maximal degree in co-relation 374641. Up to 90034 conditions per place. [2021-04-28 22:44:44,569 INFO L132 encePairwiseOnDemand]: 340/360 looper letters, 35 selfloop transitions, 62 changer transitions 0/137 dead transitions. [2021-04-28 22:44:44,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 137 transitions, 965 flow [2021-04-28 22:44:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:44:44,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:44:44,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1972 transitions. [2021-04-28 22:44:44,578 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7825396825396825 [2021-04-28 22:44:44,578 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1972 transitions. [2021-04-28 22:44:44,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1972 transitions. [2021-04-28 22:44:44,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:44:44,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1972 transitions. [2021-04-28 22:44:44,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 281.7142857142857) internal successors, (1972), 7 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:44,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 360.0) internal successors, (2880), 8 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:44,607 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 360.0) internal successors, (2880), 8 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:44,607 INFO L185 Difference]: Start difference. First operand has 84 places, 93 transitions, 526 flow. Second operand 7 states and 1972 transitions. [2021-04-28 22:44:44,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 137 transitions, 965 flow [2021-04-28 22:44:44,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 137 transitions, 963 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 22:44:44,736 INFO L241 Difference]: Finished difference. Result has 93 places, 123 transitions, 958 flow [2021-04-28 22:44:44,737 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=958, PETRI_PLACES=93, PETRI_TRANSITIONS=123} [2021-04-28 22:44:44,737 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -53 predicate places. [2021-04-28 22:44:44,737 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:44,737 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 123 transitions, 958 flow [2021-04-28 22:44:44,737 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 123 transitions, 958 flow [2021-04-28 22:44:44,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 123 transitions, 958 flow [2021-04-28 22:44:54,355 INFO L129 PetriNetUnfolder]: 55665/83302 cut-off events. [2021-04-28 22:44:54,356 INFO L130 PetriNetUnfolder]: For 151689/961039 co-relation queries the response was YES. [2021-04-28 22:44:54,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 399783 conditions, 83302 events. 55665/83302 cut-off events. For 151689/961039 co-relation queries the response was YES. Maximal size of possible extension queue 16288. Compared 820753 event pairs, 13638 based on Foata normal form. 10/24281 useless extension candidates. Maximal degree in co-relation 399755. Up to 79699 conditions per place. [2021-04-28 22:44:55,767 INFO L146 LiptonReduction]: Number of co-enabled transitions 4312 [2021-04-28 22:44:55,819 INFO L158 LiptonReduction]: Checked pairs total: 772 [2021-04-28 22:44:55,819 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:44:55,819 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11082 [2021-04-28 22:44:55,820 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 123 transitions, 958 flow [2021-04-28 22:44:55,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 268.8) internal successors, (1344), 5 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:55,822 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:44:55,822 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:44:55,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 22:44:55,822 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:44:55,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:44:55,822 INFO L82 PathProgramCache]: Analyzing trace with hash 2135907506, now seen corresponding path program 1 times [2021-04-28 22:44:55,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:44:55,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975635283] [2021-04-28 22:44:55,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:44:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:44:55,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:55,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:44:55,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:44:55,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:44:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:44:55,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975635283] [2021-04-28 22:44:55,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:44:55,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:44:55,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342784858] [2021-04-28 22:44:55,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:44:55,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:44:55,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:44:55,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:44:55,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 360 [2021-04-28 22:44:55,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 123 transitions, 958 flow. Second operand has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:44:55,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:44:55,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 360 [2021-04-28 22:44:55,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:13,815 INFO L129 PetriNetUnfolder]: 103416/152643 cut-off events. [2021-04-28 22:45:13,816 INFO L130 PetriNetUnfolder]: For 378467/3303441 co-relation queries the response was YES. [2021-04-28 22:45:14,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 733693 conditions, 152643 events. 103416/152643 cut-off events. For 378467/3303441 co-relation queries the response was YES. Maximal size of possible extension queue 30747. Compared 1501916 event pairs, 25938 based on Foata normal form. 338/43872 useless extension candidates. Maximal degree in co-relation 733663. Up to 147094 conditions per place. [2021-04-28 22:45:15,330 INFO L132 encePairwiseOnDemand]: 357/360 looper letters, 3 selfloop transitions, 3 changer transitions 0/123 dead transitions. [2021-04-28 22:45:15,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 123 transitions, 970 flow [2021-04-28 22:45:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:45:15,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:45:15,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 747 transitions. [2021-04-28 22:45:15,336 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2021-04-28 22:45:15,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 747 transitions. [2021-04-28 22:45:15,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 747 transitions. [2021-04-28 22:45:15,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:15,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 747 transitions. [2021-04-28 22:45:15,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:15,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 360.0) internal successors, (1440), 4 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:15,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 360.0) internal successors, (1440), 4 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:15,343 INFO L185 Difference]: Start difference. First operand has 93 places, 123 transitions, 958 flow. Second operand 3 states and 747 transitions. [2021-04-28 22:45:15,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 123 transitions, 970 flow [2021-04-28 22:45:21,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 123 transitions, 812 flow, removed 53 selfloop flow, removed 3 redundant places. [2021-04-28 22:45:21,629 INFO L241 Difference]: Finished difference. Result has 93 places, 123 transitions, 811 flow [2021-04-28 22:45:21,629 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=93, PETRI_TRANSITIONS=123} [2021-04-28 22:45:21,630 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -53 predicate places. [2021-04-28 22:45:21,630 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:21,630 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 123 transitions, 811 flow [2021-04-28 22:45:21,630 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 123 transitions, 811 flow [2021-04-28 22:45:21,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 123 transitions, 811 flow [2021-04-28 22:45:39,183 INFO L129 PetriNetUnfolder]: 103825/152914 cut-off events. [2021-04-28 22:45:39,183 INFO L130 PetriNetUnfolder]: For 306962/782715 co-relation queries the response was YES. [2021-04-28 22:45:40,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 706956 conditions, 152914 events. 103825/152914 cut-off events. For 306962/782715 co-relation queries the response was YES. Maximal size of possible extension queue 30759. Compared 1558603 event pairs, 25874 based on Foata normal form. 24/43812 useless extension candidates. Maximal degree in co-relation 706928. Up to 134848 conditions per place. [2021-04-28 22:45:41,732 INFO L146 LiptonReduction]: Number of co-enabled transitions 4310 [2021-04-28 22:45:41,836 INFO L158 LiptonReduction]: Checked pairs total: 772 [2021-04-28 22:45:41,837 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:41,837 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20207 [2021-04-28 22:45:41,838 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 123 transitions, 811 flow [2021-04-28 22:45:41,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:41,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:41,839 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:41,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 22:45:41,839 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:41,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:41,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1528263772, now seen corresponding path program 1 times [2021-04-28 22:45:41,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:41,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215770421] [2021-04-28 22:45:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:41,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:41,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:41,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:41,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:41,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:41,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:41,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:41,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:45:41,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:41,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:45:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:41,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215770421] [2021-04-28 22:45:41,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:41,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:45:41,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835080486] [2021-04-28 22:45:41,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:45:41,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:41,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:45:41,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:45:41,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 360 [2021-04-28 22:45:41,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 123 transitions, 811 flow. Second operand has 6 states, 6 states have (on average 268.8333333333333) internal successors, (1613), 6 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:41,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:41,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 360 [2021-04-28 22:45:41,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:46:03,956 INFO L129 PetriNetUnfolder]: 108621/166698 cut-off events. [2021-04-28 22:46:03,957 INFO L130 PetriNetUnfolder]: For 222499/3676272 co-relation queries the response was YES. [2021-04-28 22:46:04,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 927323 conditions, 166698 events. 108621/166698 cut-off events. For 222499/3676272 co-relation queries the response was YES. Maximal size of possible extension queue 34884. Compared 1765784 event pairs, 4644 based on Foata normal form. 2904/53075 useless extension candidates. Maximal degree in co-relation 927293. Up to 145846 conditions per place. [2021-04-28 22:46:05,134 INFO L132 encePairwiseOnDemand]: 340/360 looper letters, 23 selfloop transitions, 92 changer transitions 12/166 dead transitions. [2021-04-28 22:46:05,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 166 transitions, 1444 flow [2021-04-28 22:46:05,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:46:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:46:05,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2538 transitions. [2021-04-28 22:46:05,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7833333333333333 [2021-04-28 22:46:05,145 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2538 transitions. [2021-04-28 22:46:05,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2538 transitions. [2021-04-28 22:46:05,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:46:05,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2538 transitions. [2021-04-28 22:46:05,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 282.0) internal successors, (2538), 9 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:05,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 360.0) internal successors, (3600), 10 states have internal predecessors, (3600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:05,160 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 360.0) internal successors, (3600), 10 states have internal predecessors, (3600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:05,160 INFO L185 Difference]: Start difference. First operand has 93 places, 123 transitions, 811 flow. Second operand 9 states and 2538 transitions. [2021-04-28 22:46:05,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 166 transitions, 1444 flow [2021-04-28 22:46:11,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 166 transitions, 1437 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-04-28 22:46:11,474 INFO L241 Difference]: Finished difference. Result has 103 places, 151 transitions, 1354 flow [2021-04-28 22:46:11,474 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1354, PETRI_PLACES=103, PETRI_TRANSITIONS=151} [2021-04-28 22:46:11,474 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -43 predicate places. [2021-04-28 22:46:11,475 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:46:11,475 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 151 transitions, 1354 flow [2021-04-28 22:46:11,475 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 151 transitions, 1354 flow [2021-04-28 22:46:11,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 151 transitions, 1354 flow [2021-04-28 22:46:26,251 INFO L129 PetriNetUnfolder]: 69486/115347 cut-off events. [2021-04-28 22:46:26,251 INFO L130 PetriNetUnfolder]: For 848947/1922881 co-relation queries the response was YES. [2021-04-28 22:46:26,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 697585 conditions, 115347 events. 69486/115347 cut-off events. For 848947/1922881 co-relation queries the response was YES. Maximal size of possible extension queue 26117. Compared 1371448 event pairs, 4644 based on Foata normal form. 7/32455 useless extension candidates. Maximal degree in co-relation 697553. Up to 97066 conditions per place. [2021-04-28 22:46:28,555 INFO L146 LiptonReduction]: Number of co-enabled transitions 4784 [2021-04-28 22:46:28,721 INFO L158 LiptonReduction]: Checked pairs total: 810 [2021-04-28 22:46:28,721 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:46:28,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17246 [2021-04-28 22:46:28,722 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 151 transitions, 1354 flow [2021-04-28 22:46:28,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 268.8333333333333) internal successors, (1613), 6 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:28,723 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:46:28,723 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 22:46:28,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 22:46:28,724 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:46:28,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:46:28,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1897879337, now seen corresponding path program 1 times [2021-04-28 22:46:28,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:46:28,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730055076] [2021-04-28 22:46:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:46:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:46:28,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:28,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:46:28,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:46:28,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:28,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:46:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:46:28,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:28,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:46:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:46:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:46:28,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730055076] [2021-04-28 22:46:28,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:46:28,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 22:46:28,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905512371] [2021-04-28 22:46:28,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:46:28,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:46:28,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:46:28,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:46:28,854 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 360 [2021-04-28 22:46:28,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 151 transitions, 1354 flow. Second operand has 7 states, 7 states have (on average 268.85714285714283) internal successors, (1882), 7 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:28,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:46:28,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 360 [2021-04-28 22:46:28,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:46:47,781 INFO L129 PetriNetUnfolder]: 68202/116748 cut-off events. [2021-04-28 22:46:47,781 INFO L130 PetriNetUnfolder]: For 370262/5850488 co-relation queries the response was YES. [2021-04-28 22:46:48,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 811702 conditions, 116748 events. 68202/116748 cut-off events. For 370262/5850488 co-relation queries the response was YES. Maximal size of possible extension queue 27486. Compared 1371838 event pairs, 0 based on Foata normal form. 2329/35112 useless extension candidates. Maximal degree in co-relation 811668. Up to 97759 conditions per place. [2021-04-28 22:46:49,098 INFO L132 encePairwiseOnDemand]: 340/360 looper letters, 6 selfloop transitions, 109 changer transitions 19/173 dead transitions. [2021-04-28 22:46:49,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 173 transitions, 1824 flow [2021-04-28 22:46:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 22:46:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 22:46:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3080 transitions. [2021-04-28 22:46:49,108 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2021-04-28 22:46:49,108 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3080 transitions. [2021-04-28 22:46:49,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3080 transitions. [2021-04-28 22:46:49,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:46:49,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3080 transitions. [2021-04-28 22:46:49,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 280.0) internal successors, (3080), 11 states have internal predecessors, (3080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:49,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 360.0) internal successors, (4320), 12 states have internal predecessors, (4320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:49,126 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 360.0) internal successors, (4320), 12 states have internal predecessors, (4320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:49,127 INFO L185 Difference]: Start difference. First operand has 103 places, 151 transitions, 1354 flow. Second operand 11 states and 3080 transitions. [2021-04-28 22:46:49,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 173 transitions, 1824 flow