/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:39:23,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:39:23,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:39:23,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:39:23,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:39:23,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:39:23,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:39:23,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:39:23,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:39:23,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:39:23,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:39:23,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:39:23,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:39:23,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:39:23,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:39:23,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:39:23,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:39:23,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:39:23,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:39:23,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:39:23,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:39:23,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:39:23,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:39:23,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:39:23,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 14:39:23,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 14:39:23,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 14:39:23,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 14:39:23,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 14:39:23,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 14:39:23,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 14:39:23,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 14:39:23,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 14:39:23,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:39:23,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:39:23,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:39:23,469 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-RepeatedSemanticLbe.epf [2021-03-25 14:39:23,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:39:23,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:39:23,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:39:23,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:39:23,499 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:39:23,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:39:23,499 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:39:23,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:39:23,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:39:23,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:39:23,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:39:23,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:39:23,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:39:23,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:39:23,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:39:23,501 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:39:23,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:39:23,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:39:23,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:39:23,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:39:23,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:39:23,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:39:23,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:39:23,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:39:23,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:39:23,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:39:23,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:39:23,502 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:39:23,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:39:23,502 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:39:23,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:39:23,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:39:23,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:39:23,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:39:23,758 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:39:23,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i [2021-03-25 14:39:23,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a432d0ce/e1b9f2e10cc84971b528d4209019c3d4/FLAGf2fd12e71 [2021-03-25 14:39:24,532 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:39:24,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_rmo.opt.i [2021-03-25 14:39:24,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a432d0ce/e1b9f2e10cc84971b528d4209019c3d4/FLAGf2fd12e71 [2021-03-25 14:39:25,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a432d0ce/e1b9f2e10cc84971b528d4209019c3d4 [2021-03-25 14:39:25,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:39:25,035 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:39:25,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:39:25,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:39:25,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:39:25,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5d827c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25, skipping insertion in model container [2021-03-25 14:39:25,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:39:25,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:39:25,236 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] [2021-03-25 14:39:25,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:39:25,475 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:39:25,483 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] [2021-03-25 14:39:25,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:39:25,596 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:39:25,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25 WrapperNode [2021-03-25 14:39:25,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:39:25,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:39:25,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:39:25,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:39:25,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:39:25,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:39:25,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:39:25,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:39:25,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... [2021-03-25 14:39:25,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:39:25,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:39:25,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:39:25,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:39:25,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:39:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:39:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:39:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:39:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:39:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:39:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:39:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:39:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:39:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 14:39:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 14:39:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 14:39:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 14:39:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:39:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:39:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:39:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:39:25,747 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:39:27,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:39:27,129 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 14:39:27,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:39:27 BoogieIcfgContainer [2021-03-25 14:39:27,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:39:27,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:39:27,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:39:27,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:39:27,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:39:25" (1/3) ... [2021-03-25 14:39:27,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35286b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:39:27, skipping insertion in model container [2021-03-25 14:39:27,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:25" (2/3) ... [2021-03-25 14:39:27,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35286b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:39:27, skipping insertion in model container [2021-03-25 14:39:27,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:39:27" (3/3) ... [2021-03-25 14:39:27,137 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_rmo.opt.i [2021-03-25 14:39:27,142 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:39:27,145 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 14:39:27,146 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:39:27,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,177 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,177 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,178 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,178 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,178 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,179 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,179 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,180 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,180 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,180 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,180 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,180 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,181 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,181 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,181 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,181 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,184 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,185 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,185 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,185 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,185 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,185 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,185 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,186 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,186 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,186 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,186 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,186 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,186 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,186 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,187 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,187 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,187 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,187 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,187 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,187 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,189 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,189 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,189 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,189 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,193 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,193 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,197 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,198 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,198 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,202 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,203 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,203 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,204 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:27,205 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:39:27,217 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 14:39:27,239 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:39:27,239 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:39:27,239 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:39:27,239 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:39:27,239 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:39:27,239 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:39:27,239 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:39:27,239 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:39:27,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-03-25 14:39:27,288 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-25 14:39:27,289 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:27,298 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. [2021-03-25 14:39:27,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-03-25 14:39:27,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-03-25 14:39:27,303 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:27,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-25 14:39:27,313 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-25 14:39:27,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-03-25 14:39:27,344 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-25 14:39:27,345 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:27,346 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. [2021-03-25 14:39:27,349 INFO L142 LiptonReduction]: Number of co-enabled transitions 2406 [2021-03-25 14:39:28,378 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-25 14:39:28,667 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 14:39:29,991 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-25 14:39:30,585 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 14:39:31,458 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 14:39:31,850 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 14:39:31,966 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 14:39:33,235 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 14:39:33,519 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 14:39:34,001 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 14:39:34,564 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 14:39:34,957 INFO L154 LiptonReduction]: Checked pairs total: 4010 [2021-03-25 14:39:34,957 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-25 14:39:34,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7657 [2021-03-25 14:39:34,967 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-25 14:39:34,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:34,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:34,967 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:34,968 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]=== [2021-03-25 14:39:34,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:34,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1880455195, now seen corresponding path program 1 times [2021-03-25 14:39:34,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:34,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697523056] [2021-03-25 14:39:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:35,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:35,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:35,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:35,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:35,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697523056] [2021-03-25 14:39:35,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:35,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:35,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405489233] [2021-03-25 14:39:35,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:35,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:35,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:35,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:35,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 187 [2021-03-25 14:39:35,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:35,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:35,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 187 [2021-03-25 14:39:35,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:35,242 INFO L129 PetriNetUnfolder]: 23/98 cut-off events. [2021-03-25 14:39:35,242 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:35,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 98 events. 23/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 340 event pairs, 3 based on Foata normal form. 6/97 useless extension candidates. Maximal degree in co-relation 140. Up to 37 conditions per place. [2021-03-25 14:39:35,245 INFO L132 encePairwiseOnDemand]: 183/187 looper letters, 7 selfloop transitions, 2 changer transitions 5/43 dead transitions. [2021-03-25 14:39:35,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 120 flow [2021-03-25 14:39:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:35,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:35,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2021-03-25 14:39:35,257 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2021-03-25 14:39:35,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 506 transitions. [2021-03-25 14:39:35,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 506 transitions. [2021-03-25 14:39:35,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:35,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 506 transitions. [2021-03-25 14:39:35,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:35,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:35,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:35,270 INFO L185 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 3 states and 506 transitions. [2021-03-25 14:39:35,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 120 flow [2021-03-25 14:39:35,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 116 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 14:39:35,273 INFO L241 Difference]: Finished difference. Result has 50 places, 35 transitions, 82 flow [2021-03-25 14:39:35,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2021-03-25 14:39:35,275 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2021-03-25 14:39:35,275 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:35,275 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-25 14:39:35,275 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-25 14:39:35,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 82 flow [2021-03-25 14:39:35,303 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-25 14:39:35,303 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:35,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 14:39:35,304 INFO L142 LiptonReduction]: Number of co-enabled transitions 362 [2021-03-25 14:39:35,598 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 14:39:35,707 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 14:39:36,625 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2021-03-25 14:39:36,903 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 14:39:37,478 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 14:39:38,074 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 14:39:38,657 INFO L154 LiptonReduction]: Checked pairs total: 1154 [2021-03-25 14:39:38,657 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 14:39:38,657 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3382 [2021-03-25 14:39:38,658 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 66 flow [2021-03-25 14:39:38,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:38,658 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:38,659 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] [2021-03-25 14:39:38,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:39:38,659 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]=== [2021-03-25 14:39:38,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:38,659 INFO L82 PathProgramCache]: Analyzing trace with hash 157805214, now seen corresponding path program 1 times [2021-03-25 14:39:38,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:38,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352836086] [2021-03-25 14:39:38,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:38,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:38,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:38,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 14:39:38,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 14:39:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:38,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352836086] [2021-03-25 14:39:38,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:38,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:38,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400073377] [2021-03-25 14:39:38,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:39:38,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:38,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:39:38,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:39:38,795 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 195 [2021-03-25 14:39:38,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:38,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:38,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 195 [2021-03-25 14:39:38,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:38,811 INFO L129 PetriNetUnfolder]: 3/37 cut-off events. [2021-03-25 14:39:38,811 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:38,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 37 events. 3/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 49. Up to 10 conditions per place. [2021-03-25 14:39:38,811 INFO L132 encePairwiseOnDemand]: 191/195 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-25 14:39:38,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 82 flow [2021-03-25 14:39:38,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:38,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2021-03-25 14:39:38,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8683760683760684 [2021-03-25 14:39:38,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 508 transitions. [2021-03-25 14:39:38,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 508 transitions. [2021-03-25 14:39:38,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:38,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 508 transitions. [2021-03-25 14:39:38,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:38,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:38,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:38,825 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 66 flow. Second operand 3 states and 508 transitions. [2021-03-25 14:39:38,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 82 flow [2021-03-25 14:39:38,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:39:38,826 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 81 flow [2021-03-25 14:39:38,826 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-25 14:39:38,827 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -15 predicate places. [2021-03-25 14:39:38,827 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:38,827 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-25 14:39:38,827 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-25 14:39:38,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 81 flow [2021-03-25 14:39:38,832 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-25 14:39:38,832 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:38,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 35 events. 3/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 48. Up to 10 conditions per place. [2021-03-25 14:39:38,833 INFO L142 LiptonReduction]: Number of co-enabled transitions 356 [2021-03-25 14:39:39,264 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-25 14:39:39,413 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 14:39:39,770 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-25 14:39:39,924 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-25 14:39:39,927 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-25 14:39:39,927 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 14:39:39,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1101 [2021-03-25 14:39:39,928 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 77 flow [2021-03-25 14:39:39,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:39,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:39,929 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:39,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:39:39,929 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]=== [2021-03-25 14:39:39,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:39,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1377057789, now seen corresponding path program 1 times [2021-03-25 14:39:39,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:39,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216450156] [2021-03-25 14:39:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:39,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:39,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:39,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:39,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216450156] [2021-03-25 14:39:39,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:39,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 14:39:39,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548636864] [2021-03-25 14:39:39,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:39,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:39,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:39,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:39,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 197 [2021-03-25 14:39:39,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:39,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:39,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 197 [2021-03-25 14:39:39,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:40,005 INFO L129 PetriNetUnfolder]: 10/58 cut-off events. [2021-03-25 14:39:40,006 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-03-25 14:39:40,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 58 events. 10/58 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 174 event pairs, 3 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 96. Up to 19 conditions per place. [2021-03-25 14:39:40,006 INFO L132 encePairwiseOnDemand]: 193/197 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-25 14:39:40,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:40,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:40,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2021-03-25 14:39:40,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8849407783417935 [2021-03-25 14:39:40,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 523 transitions. [2021-03-25 14:39:40,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 523 transitions. [2021-03-25 14:39:40,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:40,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 523 transitions. [2021-03-25 14:39:40,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,012 INFO L185 Difference]: Start difference. First operand has 37 places, 27 transitions, 77 flow. Second operand 3 states and 523 transitions. [2021-03-25 14:39:40,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:40,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:40,013 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:40,013 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-25 14:39:40,013 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -15 predicate places. [2021-03-25 14:39:40,013 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:40,013 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:40,013 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:40,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:40,019 INFO L129 PetriNetUnfolder]: 7/45 cut-off events. [2021-03-25 14:39:40,019 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-03-25 14:39:40,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 45 events. 7/45 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 123 event pairs, 3 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 78. Up to 15 conditions per place. [2021-03-25 14:39:40,020 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-25 14:39:40,035 INFO L154 LiptonReduction]: Checked pairs total: 280 [2021-03-25 14:39:40,036 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:40,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 14:39:40,036 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 93 flow [2021-03-25 14:39:40,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,037 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:40,037 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:40,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:39:40,037 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]=== [2021-03-25 14:39:40,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:40,037 INFO L82 PathProgramCache]: Analyzing trace with hash 370417324, now seen corresponding path program 1 times [2021-03-25 14:39:40,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:40,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278989003] [2021-03-25 14:39:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:40,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:40,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:40,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278989003] [2021-03-25 14:39:40,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:40,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:40,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951933735] [2021-03-25 14:39:40,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:40,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:40,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:40,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:40,104 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 197 [2021-03-25 14:39:40,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:40,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 197 [2021-03-25 14:39:40,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:40,120 INFO L129 PetriNetUnfolder]: 4/52 cut-off events. [2021-03-25 14:39:40,120 INFO L130 PetriNetUnfolder]: For 26/61 co-relation queries the response was YES. [2021-03-25 14:39:40,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 52 events. 4/52 cut-off events. For 26/61 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 179 event pairs, 1 based on Foata normal form. 4/52 useless extension candidates. Maximal degree in co-relation 99. Up to 15 conditions per place. [2021-03-25 14:39:40,120 INFO L132 encePairwiseOnDemand]: 194/197 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-25 14:39:40,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 105 flow [2021-03-25 14:39:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:40,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2021-03-25 14:39:40,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.883248730964467 [2021-03-25 14:39:40,123 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2021-03-25 14:39:40,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2021-03-25 14:39:40,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:40,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2021-03-25 14:39:40,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,125 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 93 flow. Second operand 3 states and 522 transitions. [2021-03-25 14:39:40,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 105 flow [2021-03-25 14:39:40,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:40,126 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:40,127 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-25 14:39:40,127 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -13 predicate places. [2021-03-25 14:39:40,127 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:40,127 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:40,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:40,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:40,133 INFO L129 PetriNetUnfolder]: 4/45 cut-off events. [2021-03-25 14:39:40,133 INFO L130 PetriNetUnfolder]: For 27/43 co-relation queries the response was YES. [2021-03-25 14:39:40,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 45 events. 4/45 cut-off events. For 27/43 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 127 event pairs, 2 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 81. Up to 13 conditions per place. [2021-03-25 14:39:40,137 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-25 14:39:40,139 INFO L154 LiptonReduction]: Checked pairs total: 316 [2021-03-25 14:39:40,139 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:40,139 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 14:39:40,142 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 101 flow [2021-03-25 14:39:40,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,142 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:40,142 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:40,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:39:40,142 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]=== [2021-03-25 14:39:40,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:40,143 INFO L82 PathProgramCache]: Analyzing trace with hash -921273539, now seen corresponding path program 1 times [2021-03-25 14:39:40,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:40,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508639958] [2021-03-25 14:39:40,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:40,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 14:39:40,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:40,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508639958] [2021-03-25 14:39:40,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:40,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:40,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438092596] [2021-03-25 14:39:40,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:39:40,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:40,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:39:40,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:39:40,245 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 197 [2021-03-25 14:39:40,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:40,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 197 [2021-03-25 14:39:40,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:40,297 INFO L129 PetriNetUnfolder]: 98/260 cut-off events. [2021-03-25 14:39:40,297 INFO L130 PetriNetUnfolder]: For 369/493 co-relation queries the response was YES. [2021-03-25 14:39:40,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 260 events. 98/260 cut-off events. For 369/493 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1434 event pairs, 62 based on Foata normal form. 4/232 useless extension candidates. Maximal degree in co-relation 589. Up to 149 conditions per place. [2021-03-25 14:39:40,300 INFO L132 encePairwiseOnDemand]: 192/197 looper letters, 8 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2021-03-25 14:39:40,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 139 flow [2021-03-25 14:39:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 639 transitions. [2021-03-25 14:39:40,302 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8109137055837563 [2021-03-25 14:39:40,302 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 639 transitions. [2021-03-25 14:39:40,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 639 transitions. [2021-03-25 14:39:40,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:40,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 639 transitions. [2021-03-25 14:39:40,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.75) internal successors, (639), 4 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,305 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,305 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 101 flow. Second operand 4 states and 639 transitions. [2021-03-25 14:39:40,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 139 flow [2021-03-25 14:39:40,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 35 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:40,308 INFO L241 Difference]: Finished difference. Result has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:40,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2021-03-25 14:39:40,308 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -9 predicate places. [2021-03-25 14:39:40,308 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:40,308 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:40,308 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:40,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:40,317 INFO L129 PetriNetUnfolder]: 17/94 cut-off events. [2021-03-25 14:39:40,317 INFO L130 PetriNetUnfolder]: For 170/201 co-relation queries the response was YES. [2021-03-25 14:39:40,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 94 events. 17/94 cut-off events. For 170/201 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 431 event pairs, 6 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 222. Up to 29 conditions per place. [2021-03-25 14:39:40,318 INFO L142 LiptonReduction]: Number of co-enabled transitions 466 [2021-03-25 14:39:40,320 INFO L154 LiptonReduction]: Checked pairs total: 267 [2021-03-25 14:39:40,320 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:40,321 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 14:39:40,321 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 130 flow [2021-03-25 14:39:40,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,321 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:40,321 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:40,322 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:39:40,322 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]=== [2021-03-25 14:39:40,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:40,322 INFO L82 PathProgramCache]: Analyzing trace with hash -583256081, now seen corresponding path program 1 times [2021-03-25 14:39:40,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:40,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414219295] [2021-03-25 14:39:40,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:40,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:40,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:40,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:40,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414219295] [2021-03-25 14:39:40,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:40,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:40,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757219561] [2021-03-25 14:39:40,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:40,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:40,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:40,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:40,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 197 [2021-03-25 14:39:40,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:40,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 197 [2021-03-25 14:39:40,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:40,455 INFO L129 PetriNetUnfolder]: 87/233 cut-off events. [2021-03-25 14:39:40,455 INFO L130 PetriNetUnfolder]: For 556/622 co-relation queries the response was YES. [2021-03-25 14:39:40,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 233 events. 87/233 cut-off events. For 556/622 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1224 event pairs, 41 based on Foata normal form. 7/216 useless extension candidates. Maximal degree in co-relation 661. Up to 116 conditions per place. [2021-03-25 14:39:40,457 INFO L132 encePairwiseOnDemand]: 192/197 looper letters, 10 selfloop transitions, 6 changer transitions 0/38 dead transitions. [2021-03-25 14:39:40,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 184 flow [2021-03-25 14:39:40,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:40,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 626 transitions. [2021-03-25 14:39:40,459 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7944162436548223 [2021-03-25 14:39:40,459 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 626 transitions. [2021-03-25 14:39:40,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 626 transitions. [2021-03-25 14:39:40,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:40,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 626 transitions. [2021-03-25 14:39:40,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.5) internal successors, (626), 4 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,462 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,462 INFO L185 Difference]: Start difference. First operand has 45 places, 33 transitions, 130 flow. Second operand 4 states and 626 transitions. [2021-03-25 14:39:40,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 184 flow [2021-03-25 14:39:40,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 14:39:40,464 INFO L241 Difference]: Finished difference. Result has 49 places, 35 transitions, 155 flow [2021-03-25 14:39:40,464 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2021-03-25 14:39:40,464 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2021-03-25 14:39:40,464 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:40,464 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 35 transitions, 155 flow [2021-03-25 14:39:40,465 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 35 transitions, 155 flow [2021-03-25 14:39:40,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 35 transitions, 155 flow [2021-03-25 14:39:40,477 INFO L129 PetriNetUnfolder]: 34/129 cut-off events. [2021-03-25 14:39:40,477 INFO L130 PetriNetUnfolder]: For 431/476 co-relation queries the response was YES. [2021-03-25 14:39:40,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 129 events. 34/129 cut-off events. For 431/476 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 647 event pairs, 16 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 373. Up to 45 conditions per place. [2021-03-25 14:39:40,479 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 14:39:40,490 INFO L154 LiptonReduction]: Checked pairs total: 284 [2021-03-25 14:39:40,491 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:40,491 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 14:39:40,491 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 155 flow [2021-03-25 14:39:40,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,492 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:40,492 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:40,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:39:40,492 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]=== [2021-03-25 14:39:40,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:40,492 INFO L82 PathProgramCache]: Analyzing trace with hash 140782150, now seen corresponding path program 1 times [2021-03-25 14:39:40,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:40,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383298009] [2021-03-25 14:39:40,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:40,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:40,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:40,546 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.6 percent of original size [2021-03-25 14:39:40,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 14:39:40,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 14:39:40,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:40,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383298009] [2021-03-25 14:39:40,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:40,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:40,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413042369] [2021-03-25 14:39:40,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:40,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:40,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:40,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:40,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 197 [2021-03-25 14:39:40,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 153.83333333333334) internal successors, (923), 6 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:40,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 197 [2021-03-25 14:39:40,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:40,647 INFO L129 PetriNetUnfolder]: 99/265 cut-off events. [2021-03-25 14:39:40,647 INFO L130 PetriNetUnfolder]: For 695/761 co-relation queries the response was YES. [2021-03-25 14:39:40,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 265 events. 99/265 cut-off events. For 695/761 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1466 event pairs, 13 based on Foata normal form. 7/248 useless extension candidates. Maximal degree in co-relation 833. Up to 125 conditions per place. [2021-03-25 14:39:40,650 INFO L132 encePairwiseOnDemand]: 190/197 looper letters, 11 selfloop transitions, 10 changer transitions 0/43 dead transitions. [2021-03-25 14:39:40,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 237 flow [2021-03-25 14:39:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:40,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 783 transitions. [2021-03-25 14:39:40,652 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7949238578680203 [2021-03-25 14:39:40,652 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 783 transitions. [2021-03-25 14:39:40,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 783 transitions. [2021-03-25 14:39:40,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:40,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 783 transitions. [2021-03-25 14:39:40,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 156.6) internal successors, (783), 5 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,655 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,655 INFO L185 Difference]: Start difference. First operand has 49 places, 35 transitions, 155 flow. Second operand 5 states and 783 transitions. [2021-03-25 14:39:40,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 237 flow [2021-03-25 14:39:40,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 228 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:40,659 INFO L241 Difference]: Finished difference. Result has 54 places, 40 transitions, 205 flow [2021-03-25 14:39:40,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2021-03-25 14:39:40,659 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2021-03-25 14:39:40,659 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:40,659 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 40 transitions, 205 flow [2021-03-25 14:39:40,659 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 40 transitions, 205 flow [2021-03-25 14:39:40,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 40 transitions, 205 flow [2021-03-25 14:39:40,679 INFO L129 PetriNetUnfolder]: 63/195 cut-off events. [2021-03-25 14:39:40,679 INFO L130 PetriNetUnfolder]: For 782/816 co-relation queries the response was YES. [2021-03-25 14:39:40,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 195 events. 63/195 cut-off events. For 782/816 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1040 event pairs, 25 based on Foata normal form. 3/172 useless extension candidates. Maximal degree in co-relation 652. Up to 72 conditions per place. [2021-03-25 14:39:40,681 INFO L142 LiptonReduction]: Number of co-enabled transitions 584 [2021-03-25 14:39:40,686 INFO L154 LiptonReduction]: Checked pairs total: 247 [2021-03-25 14:39:40,686 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:40,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-25 14:39:40,688 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 205 flow [2021-03-25 14:39:40,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 153.83333333333334) internal successors, (923), 6 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:40,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:40,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:39:40,689 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]=== [2021-03-25 14:39:40,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:40,689 INFO L82 PathProgramCache]: Analyzing trace with hash -571290218, now seen corresponding path program 1 times [2021-03-25 14:39:40,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:40,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721192723] [2021-03-25 14:39:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:40,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:40,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:40,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 14:39:40,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:40,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:39:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:40,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721192723] [2021-03-25 14:39:40,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:40,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:40,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673696512] [2021-03-25 14:39:40,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:40,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:40,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:40,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:40,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 197 [2021-03-25 14:39:40,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 205 flow. Second operand has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:40,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 197 [2021-03-25 14:39:40,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:40,881 INFO L129 PetriNetUnfolder]: 99/268 cut-off events. [2021-03-25 14:39:40,881 INFO L130 PetriNetUnfolder]: For 994/1064 co-relation queries the response was YES. [2021-03-25 14:39:40,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 268 events. 99/268 cut-off events. For 994/1064 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1484 event pairs, 10 based on Foata normal form. 9/253 useless extension candidates. Maximal degree in co-relation 984. Up to 137 conditions per place. [2021-03-25 14:39:40,884 INFO L132 encePairwiseOnDemand]: 192/197 looper letters, 13 selfloop transitions, 9 changer transitions 0/44 dead transitions. [2021-03-25 14:39:40,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 280 flow [2021-03-25 14:39:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:40,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:40,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 619 transitions. [2021-03-25 14:39:40,886 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7855329949238579 [2021-03-25 14:39:40,886 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 619 transitions. [2021-03-25 14:39:40,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 619 transitions. [2021-03-25 14:39:40,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:40,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 619 transitions. [2021-03-25 14:39:40,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,889 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:40,889 INFO L185 Difference]: Start difference. First operand has 54 places, 40 transitions, 205 flow. Second operand 4 states and 619 transitions. [2021-03-25 14:39:40,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 280 flow [2021-03-25 14:39:40,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 44 transitions, 269 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:40,893 INFO L241 Difference]: Finished difference. Result has 57 places, 42 transitions, 232 flow [2021-03-25 14:39:40,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2021-03-25 14:39:40,893 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 3 predicate places. [2021-03-25 14:39:40,893 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:40,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 42 transitions, 232 flow [2021-03-25 14:39:40,893 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 42 transitions, 232 flow [2021-03-25 14:39:40,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 42 transitions, 232 flow [2021-03-25 14:39:40,918 INFO L129 PetriNetUnfolder]: 72/206 cut-off events. [2021-03-25 14:39:40,918 INFO L130 PetriNetUnfolder]: For 1260/1322 co-relation queries the response was YES. [2021-03-25 14:39:40,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 206 events. 72/206 cut-off events. For 1260/1322 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1085 event pairs, 22 based on Foata normal form. 5/180 useless extension candidates. Maximal degree in co-relation 797. Up to 87 conditions per place. [2021-03-25 14:39:40,921 INFO L142 LiptonReduction]: Number of co-enabled transitions 618 [2021-03-25 14:39:41,073 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 14:39:41,446 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-25 14:39:41,551 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-25 14:39:41,564 INFO L154 LiptonReduction]: Checked pairs total: 556 [2021-03-25 14:39:41,564 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:39:41,564 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 671 [2021-03-25 14:39:41,564 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 240 flow [2021-03-25 14:39:41,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:41,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:41,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 14:39:41,565 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]=== [2021-03-25 14:39:41,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:41,565 INFO L82 PathProgramCache]: Analyzing trace with hash 493771146, now seen corresponding path program 2 times [2021-03-25 14:39:41,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:41,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185011424] [2021-03-25 14:39:41,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:41,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:41,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:41,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:41,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 14:39:41,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:41,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 14:39:41,632 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-25 14:39:41,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 14:39:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:41,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185011424] [2021-03-25 14:39:41,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:41,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:41,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292411417] [2021-03-25 14:39:41,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:41,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:41,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:41,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:41,667 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 198 [2021-03-25 14:39:41,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 155.83333333333334) internal successors, (935), 6 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:41,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 198 [2021-03-25 14:39:41,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:41,755 INFO L129 PetriNetUnfolder]: 92/252 cut-off events. [2021-03-25 14:39:41,755 INFO L130 PetriNetUnfolder]: For 1154/1235 co-relation queries the response was YES. [2021-03-25 14:39:41,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 252 events. 92/252 cut-off events. For 1154/1235 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1362 event pairs, 9 based on Foata normal form. 10/234 useless extension candidates. Maximal degree in co-relation 982. Up to 133 conditions per place. [2021-03-25 14:39:41,757 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 13 selfloop transitions, 8 changer transitions 0/43 dead transitions. [2021-03-25 14:39:41,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 43 transitions, 288 flow [2021-03-25 14:39:41,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:41,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:41,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 634 transitions. [2021-03-25 14:39:41,759 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8005050505050505 [2021-03-25 14:39:41,759 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 634 transitions. [2021-03-25 14:39:41,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 634 transitions. [2021-03-25 14:39:41,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:41,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 634 transitions. [2021-03-25 14:39:41,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 158.5) internal successors, (634), 4 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,762 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,762 INFO L185 Difference]: Start difference. First operand has 57 places, 42 transitions, 240 flow. Second operand 4 states and 634 transitions. [2021-03-25 14:39:41,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 43 transitions, 288 flow [2021-03-25 14:39:41,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 43 transitions, 267 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-25 14:39:41,765 INFO L241 Difference]: Finished difference. Result has 59 places, 42 transitions, 243 flow [2021-03-25 14:39:41,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=243, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2021-03-25 14:39:41,765 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 5 predicate places. [2021-03-25 14:39:41,766 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:41,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 42 transitions, 243 flow [2021-03-25 14:39:41,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 42 transitions, 243 flow [2021-03-25 14:39:41,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 42 transitions, 243 flow [2021-03-25 14:39:41,784 INFO L129 PetriNetUnfolder]: 62/185 cut-off events. [2021-03-25 14:39:41,784 INFO L130 PetriNetUnfolder]: For 1144/1195 co-relation queries the response was YES. [2021-03-25 14:39:41,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 185 events. 62/185 cut-off events. For 1144/1195 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 915 event pairs, 18 based on Foata normal form. 3/165 useless extension candidates. Maximal degree in co-relation 695. Up to 70 conditions per place. [2021-03-25 14:39:41,786 INFO L142 LiptonReduction]: Number of co-enabled transitions 618 [2021-03-25 14:39:41,791 INFO L154 LiptonReduction]: Checked pairs total: 296 [2021-03-25 14:39:41,791 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:41,791 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 14:39:41,792 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 243 flow [2021-03-25 14:39:41,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 155.83333333333334) internal successors, (935), 6 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,793 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:41,793 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:41,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 14:39:41,793 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]=== [2021-03-25 14:39:41,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:41,793 INFO L82 PathProgramCache]: Analyzing trace with hash -568086244, now seen corresponding path program 1 times [2021-03-25 14:39:41,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:41,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819301679] [2021-03-25 14:39:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:41,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:41,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:41,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:41,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 14:39:41,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:41,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 14:39:41,891 INFO L142 QuantifierPusher]: treesize reduction 10, result has 85.1 percent of original size [2021-03-25 14:39:41,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 14:39:41,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:41,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819301679] [2021-03-25 14:39:41,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:41,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:41,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931350104] [2021-03-25 14:39:41,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:41,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:41,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:41,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:41,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 198 [2021-03-25 14:39:41,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 243 flow. Second operand has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:41,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 198 [2021-03-25 14:39:41,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:41,989 INFO L129 PetriNetUnfolder]: 84/247 cut-off events. [2021-03-25 14:39:41,989 INFO L130 PetriNetUnfolder]: For 1566/1657 co-relation queries the response was YES. [2021-03-25 14:39:41,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 247 events. 84/247 cut-off events. For 1566/1657 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1373 event pairs, 4 based on Foata normal form. 13/238 useless extension candidates. Maximal degree in co-relation 951. Up to 93 conditions per place. [2021-03-25 14:39:41,992 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 13 selfloop transitions, 11 changer transitions 0/46 dead transitions. [2021-03-25 14:39:41,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 315 flow [2021-03-25 14:39:41,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 628 transitions. [2021-03-25 14:39:41,994 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7929292929292929 [2021-03-25 14:39:41,994 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 628 transitions. [2021-03-25 14:39:41,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 628 transitions. [2021-03-25 14:39:41,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:41,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 628 transitions. [2021-03-25 14:39:41,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,996 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:41,996 INFO L185 Difference]: Start difference. First operand has 59 places, 42 transitions, 243 flow. Second operand 4 states and 628 transitions. [2021-03-25 14:39:41,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 315 flow [2021-03-25 14:39:41,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 46 transitions, 303 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 14:39:41,999 INFO L241 Difference]: Finished difference. Result has 61 places, 44 transitions, 281 flow [2021-03-25 14:39:41,999 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=281, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2021-03-25 14:39:42,000 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 7 predicate places. [2021-03-25 14:39:42,000 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:42,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 44 transitions, 281 flow [2021-03-25 14:39:42,000 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 44 transitions, 281 flow [2021-03-25 14:39:42,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 44 transitions, 281 flow [2021-03-25 14:39:42,017 INFO L129 PetriNetUnfolder]: 50/174 cut-off events. [2021-03-25 14:39:42,017 INFO L130 PetriNetUnfolder]: For 1035/1085 co-relation queries the response was YES. [2021-03-25 14:39:42,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 174 events. 50/174 cut-off events. For 1035/1085 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 901 event pairs, 10 based on Foata normal form. 5/159 useless extension candidates. Maximal degree in co-relation 703. Up to 61 conditions per place. [2021-03-25 14:39:42,019 INFO L142 LiptonReduction]: Number of co-enabled transitions 660 [2021-03-25 14:39:42,025 INFO L154 LiptonReduction]: Checked pairs total: 401 [2021-03-25 14:39:42,025 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:42,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 14:39:42,026 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 281 flow [2021-03-25 14:39:42,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 154.0) internal successors, (770), 5 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:42,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:42,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 14:39:42,027 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]=== [2021-03-25 14:39:42,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:42,027 INFO L82 PathProgramCache]: Analyzing trace with hash -528740643, now seen corresponding path program 1 times [2021-03-25 14:39:42,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:42,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283192692] [2021-03-25 14:39:42,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:42,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:42,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:42,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 14:39:42,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 14:39:42,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 14:39:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:42,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283192692] [2021-03-25 14:39:42,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:42,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:42,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127929728] [2021-03-25 14:39:42,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:42,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:42,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:42,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:42,126 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-25 14:39:42,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:42,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-25 14:39:42,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:42,206 INFO L129 PetriNetUnfolder]: 98/286 cut-off events. [2021-03-25 14:39:42,207 INFO L130 PetriNetUnfolder]: For 1873/1959 co-relation queries the response was YES. [2021-03-25 14:39:42,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 286 events. 98/286 cut-off events. For 1873/1959 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1667 event pairs, 15 based on Foata normal form. 7/269 useless extension candidates. Maximal degree in co-relation 1258. Up to 144 conditions per place. [2021-03-25 14:39:42,209 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 16 selfloop transitions, 13 changer transitions 0/51 dead transitions. [2021-03-25 14:39:42,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 51 transitions, 407 flow [2021-03-25 14:39:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:42,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 797 transitions. [2021-03-25 14:39:42,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.805050505050505 [2021-03-25 14:39:42,211 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 797 transitions. [2021-03-25 14:39:42,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 797 transitions. [2021-03-25 14:39:42,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:42,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 797 transitions. [2021-03-25 14:39:42,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.4) internal successors, (797), 5 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,215 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,215 INFO L185 Difference]: Start difference. First operand has 61 places, 44 transitions, 281 flow. Second operand 5 states and 797 transitions. [2021-03-25 14:39:42,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 51 transitions, 407 flow [2021-03-25 14:39:42,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 51 transitions, 369 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-03-25 14:39:42,219 INFO L241 Difference]: Finished difference. Result has 65 places, 50 transitions, 358 flow [2021-03-25 14:39:42,219 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=65, PETRI_TRANSITIONS=50} [2021-03-25 14:39:42,219 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 11 predicate places. [2021-03-25 14:39:42,219 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:42,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 50 transitions, 358 flow [2021-03-25 14:39:42,219 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 50 transitions, 358 flow [2021-03-25 14:39:42,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 50 transitions, 358 flow [2021-03-25 14:39:42,241 INFO L129 PetriNetUnfolder]: 67/208 cut-off events. [2021-03-25 14:39:42,242 INFO L130 PetriNetUnfolder]: For 1393/1443 co-relation queries the response was YES. [2021-03-25 14:39:42,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 208 events. 67/208 cut-off events. For 1393/1443 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1106 event pairs, 16 based on Foata normal form. 5/190 useless extension candidates. Maximal degree in co-relation 856. Up to 76 conditions per place. [2021-03-25 14:39:42,244 INFO L142 LiptonReduction]: Number of co-enabled transitions 754 [2021-03-25 14:39:42,252 INFO L154 LiptonReduction]: Checked pairs total: 469 [2021-03-25 14:39:42,252 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:42,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-25 14:39:42,252 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 50 transitions, 358 flow [2021-03-25 14:39:42,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:42,253 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:42,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 14:39:42,253 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]=== [2021-03-25 14:39:42,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:42,253 INFO L82 PathProgramCache]: Analyzing trace with hash -156490963, now seen corresponding path program 1 times [2021-03-25 14:39:42,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:42,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37976602] [2021-03-25 14:39:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:42,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:42,290 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 14:39:42,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 14:39:42,300 INFO L142 QuantifierPusher]: treesize reduction 26, result has 51.9 percent of original size [2021-03-25 14:39:42,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 14:39:42,314 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-03-25 14:39:42,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 14:39:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:42,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37976602] [2021-03-25 14:39:42,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:42,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:42,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263605474] [2021-03-25 14:39:42,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:42,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:42,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:42,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:42,331 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-25 14:39:42,332 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 50 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 157.2) internal successors, (786), 5 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:42,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-25 14:39:42,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:42,420 INFO L129 PetriNetUnfolder]: 126/381 cut-off events. [2021-03-25 14:39:42,420 INFO L130 PetriNetUnfolder]: For 2868/3001 co-relation queries the response was YES. [2021-03-25 14:39:42,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 381 events. 126/381 cut-off events. For 2868/3001 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2454 event pairs, 14 based on Foata normal form. 13/358 useless extension candidates. Maximal degree in co-relation 1824. Up to 153 conditions per place. [2021-03-25 14:39:42,424 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 23 selfloop transitions, 20 changer transitions 0/65 dead transitions. [2021-03-25 14:39:42,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 65 transitions, 583 flow [2021-03-25 14:39:42,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:42,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 800 transitions. [2021-03-25 14:39:42,426 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8080808080808081 [2021-03-25 14:39:42,426 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 800 transitions. [2021-03-25 14:39:42,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 800 transitions. [2021-03-25 14:39:42,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:42,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 800 transitions. [2021-03-25 14:39:42,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,429 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,429 INFO L185 Difference]: Start difference. First operand has 65 places, 50 transitions, 358 flow. Second operand 5 states and 800 transitions. [2021-03-25 14:39:42,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 65 transitions, 583 flow [2021-03-25 14:39:42,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 65 transitions, 549 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-03-25 14:39:42,435 INFO L241 Difference]: Finished difference. Result has 70 places, 61 transitions, 514 flow [2021-03-25 14:39:42,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=514, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2021-03-25 14:39:42,436 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places. [2021-03-25 14:39:42,436 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:42,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 514 flow [2021-03-25 14:39:42,436 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 514 flow [2021-03-25 14:39:42,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 514 flow [2021-03-25 14:39:42,465 INFO L129 PetriNetUnfolder]: 93/293 cut-off events. [2021-03-25 14:39:42,465 INFO L130 PetriNetUnfolder]: For 2257/2308 co-relation queries the response was YES. [2021-03-25 14:39:42,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 293 events. 93/293 cut-off events. For 2257/2308 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1779 event pairs, 15 based on Foata normal form. 2/261 useless extension candidates. Maximal degree in co-relation 1346. Up to 117 conditions per place. [2021-03-25 14:39:42,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 950 [2021-03-25 14:39:42,477 INFO L154 LiptonReduction]: Checked pairs total: 811 [2021-03-25 14:39:42,477 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:42,477 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-25 14:39:42,478 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 514 flow [2021-03-25 14:39:42,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 157.2) internal successors, (786), 5 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,479 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:42,479 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:42,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 14:39:42,479 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]=== [2021-03-25 14:39:42,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:42,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1152482668, now seen corresponding path program 1 times [2021-03-25 14:39:42,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:42,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537736196] [2021-03-25 14:39:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:42,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:42,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:42,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:42,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537736196] [2021-03-25 14:39:42,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:42,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:42,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237564329] [2021-03-25 14:39:42,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:39:42,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:42,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:39:42,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:39:42,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 198 [2021-03-25 14:39:42,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 514 flow. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:42,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 198 [2021-03-25 14:39:42,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:42,621 INFO L129 PetriNetUnfolder]: 209/643 cut-off events. [2021-03-25 14:39:42,622 INFO L130 PetriNetUnfolder]: For 7920/8178 co-relation queries the response was YES. [2021-03-25 14:39:42,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2847 conditions, 643 events. 209/643 cut-off events. For 7920/8178 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5010 event pairs, 28 based on Foata normal form. 49/639 useless extension candidates. Maximal degree in co-relation 2816. Up to 249 conditions per place. [2021-03-25 14:39:42,628 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 6 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2021-03-25 14:39:42,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 64 transitions, 574 flow [2021-03-25 14:39:42,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:39:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:39:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 699 transitions. [2021-03-25 14:39:42,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8825757575757576 [2021-03-25 14:39:42,630 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 699 transitions. [2021-03-25 14:39:42,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 699 transitions. [2021-03-25 14:39:42,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:42,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 699 transitions. [2021-03-25 14:39:42,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,632 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,632 INFO L185 Difference]: Start difference. First operand has 70 places, 61 transitions, 514 flow. Second operand 4 states and 699 transitions. [2021-03-25 14:39:42,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 64 transitions, 574 flow [2021-03-25 14:39:42,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 64 transitions, 558 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:42,639 INFO L241 Difference]: Finished difference. Result has 74 places, 62 transitions, 513 flow [2021-03-25 14:39:42,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=513, PETRI_PLACES=74, PETRI_TRANSITIONS=62} [2021-03-25 14:39:42,640 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 20 predicate places. [2021-03-25 14:39:42,640 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:42,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 62 transitions, 513 flow [2021-03-25 14:39:42,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 62 transitions, 513 flow [2021-03-25 14:39:42,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 62 transitions, 513 flow [2021-03-25 14:39:42,742 INFO L129 PetriNetUnfolder]: 140/456 cut-off events. [2021-03-25 14:39:42,742 INFO L130 PetriNetUnfolder]: For 3770/3903 co-relation queries the response was YES. [2021-03-25 14:39:42,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 456 events. 140/456 cut-off events. For 3770/3903 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3269 event pairs, 18 based on Foata normal form. 27/432 useless extension candidates. Maximal degree in co-relation 1870. Up to 159 conditions per place. [2021-03-25 14:39:42,762 INFO L142 LiptonReduction]: Number of co-enabled transitions 984 [2021-03-25 14:39:42,792 INFO L154 LiptonReduction]: Checked pairs total: 556 [2021-03-25 14:39:42,792 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:42,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 152 [2021-03-25 14:39:42,792 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 62 transitions, 513 flow [2021-03-25 14:39:42,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,793 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:42,793 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:42,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 14:39:42,793 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]=== [2021-03-25 14:39:42,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:42,793 INFO L82 PathProgramCache]: Analyzing trace with hash 721001775, now seen corresponding path program 2 times [2021-03-25 14:39:42,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:42,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997341005] [2021-03-25 14:39:42,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:42,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:42,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 14:39:42,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 14:39:42,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:42,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 14:39:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:42,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997341005] [2021-03-25 14:39:42,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:42,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:42,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387215723] [2021-03-25 14:39:42,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:42,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:42,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:42,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:42,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-25 14:39:42,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 62 transitions, 513 flow. Second operand has 5 states, 5 states have (on average 157.2) internal successors, (786), 5 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:42,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-25 14:39:42,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:42,977 INFO L129 PetriNetUnfolder]: 190/604 cut-off events. [2021-03-25 14:39:42,977 INFO L130 PetriNetUnfolder]: For 5151/5405 co-relation queries the response was YES. [2021-03-25 14:39:42,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2851 conditions, 604 events. 190/604 cut-off events. For 5151/5405 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4665 event pairs, 13 based on Foata normal form. 44/599 useless extension candidates. Maximal degree in co-relation 2818. Up to 287 conditions per place. [2021-03-25 14:39:42,982 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 22 selfloop transitions, 17 changer transitions 0/62 dead transitions. [2021-03-25 14:39:42,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 62 transitions, 579 flow [2021-03-25 14:39:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:42,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:42,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 795 transitions. [2021-03-25 14:39:42,984 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.803030303030303 [2021-03-25 14:39:42,984 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 795 transitions. [2021-03-25 14:39:42,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 795 transitions. [2021-03-25 14:39:42,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:42,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 795 transitions. [2021-03-25 14:39:42,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,988 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:42,988 INFO L185 Difference]: Start difference. First operand has 74 places, 62 transitions, 513 flow. Second operand 5 states and 795 transitions. [2021-03-25 14:39:42,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 62 transitions, 579 flow [2021-03-25 14:39:42,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 62 transitions, 578 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:42,996 INFO L241 Difference]: Finished difference. Result has 77 places, 61 transitions, 524 flow [2021-03-25 14:39:42,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=524, PETRI_PLACES=77, PETRI_TRANSITIONS=61} [2021-03-25 14:39:42,996 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 23 predicate places. [2021-03-25 14:39:42,996 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:42,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 61 transitions, 524 flow [2021-03-25 14:39:42,996 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 61 transitions, 524 flow [2021-03-25 14:39:42,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 61 transitions, 524 flow [2021-03-25 14:39:43,040 INFO L129 PetriNetUnfolder]: 135/451 cut-off events. [2021-03-25 14:39:43,040 INFO L130 PetriNetUnfolder]: For 3770/3932 co-relation queries the response was YES. [2021-03-25 14:39:43,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1927 conditions, 451 events. 135/451 cut-off events. For 3770/3932 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3312 event pairs, 22 based on Foata normal form. 19/430 useless extension candidates. Maximal degree in co-relation 1895. Up to 154 conditions per place. [2021-03-25 14:39:43,046 INFO L142 LiptonReduction]: Number of co-enabled transitions 976 [2021-03-25 14:39:43,061 INFO L154 LiptonReduction]: Checked pairs total: 549 [2021-03-25 14:39:43,061 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:43,061 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 14:39:43,061 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 524 flow [2021-03-25 14:39:43,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 157.2) internal successors, (786), 5 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:43,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:43,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 14:39:43,062 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:43,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:43,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1796248777, now seen corresponding path program 2 times [2021-03-25 14:39:43,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:43,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607108391] [2021-03-25 14:39:43,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:43,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:39:43,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 14:39:43,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:39:43,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 14:39:43,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 14:39:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:43,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607108391] [2021-03-25 14:39:43,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:43,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:39:43,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840295846] [2021-03-25 14:39:43,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 14:39:43,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:43,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 14:39:43,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 14:39:43,154 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 198 [2021-03-25 14:39:43,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 61 transitions, 524 flow. Second operand has 7 states, 7 states have (on average 147.85714285714286) internal successors, (1035), 7 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:43,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 198 [2021-03-25 14:39:43,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:43,305 INFO L129 PetriNetUnfolder]: 178/566 cut-off events. [2021-03-25 14:39:43,305 INFO L130 PetriNetUnfolder]: For 4976/5201 co-relation queries the response was YES. [2021-03-25 14:39:43,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 566 events. 178/566 cut-off events. For 4976/5201 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4294 event pairs, 10 based on Foata normal form. 62/583 useless extension candidates. Maximal degree in co-relation 2753. Up to 232 conditions per place. [2021-03-25 14:39:43,310 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 22 selfloop transitions, 18 changer transitions 0/63 dead transitions. [2021-03-25 14:39:43,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 63 transitions, 624 flow [2021-03-25 14:39:43,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 752 transitions. [2021-03-25 14:39:43,312 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7595959595959596 [2021-03-25 14:39:43,312 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 752 transitions. [2021-03-25 14:39:43,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 752 transitions. [2021-03-25 14:39:43,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:43,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 752 transitions. [2021-03-25 14:39:43,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.4) internal successors, (752), 5 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,315 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,315 INFO L185 Difference]: Start difference. First operand has 77 places, 61 transitions, 524 flow. Second operand 5 states and 752 transitions. [2021-03-25 14:39:43,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 63 transitions, 624 flow [2021-03-25 14:39:43,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 63 transitions, 595 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-25 14:39:43,321 INFO L241 Difference]: Finished difference. Result has 79 places, 61 transitions, 548 flow [2021-03-25 14:39:43,321 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=548, PETRI_PLACES=79, PETRI_TRANSITIONS=61} [2021-03-25 14:39:43,321 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 25 predicate places. [2021-03-25 14:39:43,321 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:43,321 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 61 transitions, 548 flow [2021-03-25 14:39:43,321 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 61 transitions, 548 flow [2021-03-25 14:39:43,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 61 transitions, 548 flow [2021-03-25 14:39:43,359 INFO L129 PetriNetUnfolder]: 130/427 cut-off events. [2021-03-25 14:39:43,359 INFO L130 PetriNetUnfolder]: For 3099/3175 co-relation queries the response was YES. [2021-03-25 14:39:43,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1960 conditions, 427 events. 130/427 cut-off events. For 3099/3175 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2985 event pairs, 20 based on Foata normal form. 13/402 useless extension candidates. Maximal degree in co-relation 1927. Up to 147 conditions per place. [2021-03-25 14:39:43,364 INFO L142 LiptonReduction]: Number of co-enabled transitions 974 [2021-03-25 14:39:43,378 INFO L154 LiptonReduction]: Checked pairs total: 549 [2021-03-25 14:39:43,378 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:43,379 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 14:39:43,380 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 61 transitions, 548 flow [2021-03-25 14:39:43,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 147.85714285714286) internal successors, (1035), 7 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:43,381 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:43,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 14:39:43,381 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:43,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:43,381 INFO L82 PathProgramCache]: Analyzing trace with hash -751534667, now seen corresponding path program 1 times [2021-03-25 14:39:43,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:43,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550645092] [2021-03-25 14:39:43,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:43,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:43,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:43,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:43,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:43,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:43,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550645092] [2021-03-25 14:39:43,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:43,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:39:43,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940344198] [2021-03-25 14:39:43,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:39:43,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:43,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:39:43,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:39:43,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-25 14:39:43,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 61 transitions, 548 flow. Second operand has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:43,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-25 14:39:43,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:43,813 INFO L129 PetriNetUnfolder]: 1939/3510 cut-off events. [2021-03-25 14:39:43,813 INFO L130 PetriNetUnfolder]: For 17141/18873 co-relation queries the response was YES. [2021-03-25 14:39:43,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12611 conditions, 3510 events. 1939/3510 cut-off events. For 17141/18873 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 28715 event pairs, 699 based on Foata normal form. 449/3422 useless extension candidates. Maximal degree in co-relation 12576. Up to 2119 conditions per place. [2021-03-25 14:39:43,837 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 15 selfloop transitions, 10 changer transitions 0/74 dead transitions. [2021-03-25 14:39:43,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 74 transitions, 624 flow [2021-03-25 14:39:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:39:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:39:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 837 transitions. [2021-03-25 14:39:43,839 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8454545454545455 [2021-03-25 14:39:43,839 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 837 transitions. [2021-03-25 14:39:43,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 837 transitions. [2021-03-25 14:39:43,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:43,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 837 transitions. [2021-03-25 14:39:43,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.4) internal successors, (837), 5 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,852 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:43,852 INFO L185 Difference]: Start difference. First operand has 79 places, 61 transitions, 548 flow. Second operand 5 states and 837 transitions. [2021-03-25 14:39:43,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 74 transitions, 624 flow [2021-03-25 14:39:43,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 74 transitions, 586 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-25 14:39:43,869 INFO L241 Difference]: Finished difference. Result has 82 places, 70 transitions, 605 flow [2021-03-25 14:39:43,869 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=605, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2021-03-25 14:39:43,870 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 28 predicate places. [2021-03-25 14:39:43,870 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:43,870 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 70 transitions, 605 flow [2021-03-25 14:39:43,870 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 70 transitions, 605 flow [2021-03-25 14:39:43,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 70 transitions, 605 flow [2021-03-25 14:39:44,095 INFO L129 PetriNetUnfolder]: 1637/2938 cut-off events. [2021-03-25 14:39:44,095 INFO L130 PetriNetUnfolder]: For 13516/15215 co-relation queries the response was YES. [2021-03-25 14:39:44,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11950 conditions, 2938 events. 1637/2938 cut-off events. For 13516/15215 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 23794 event pairs, 567 based on Foata normal form. 35/2436 useless extension candidates. Maximal degree in co-relation 11914. Up to 1971 conditions per place. [2021-03-25 14:39:44,135 INFO L142 LiptonReduction]: Number of co-enabled transitions 1220 [2021-03-25 14:39:44,393 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:39:44,393 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:44,393 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 523 [2021-03-25 14:39:44,394 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 605 flow [2021-03-25 14:39:44,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,394 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:44,394 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] [2021-03-25 14:39:44,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 14:39:44,395 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:44,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:44,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1822818314, now seen corresponding path program 1 times [2021-03-25 14:39:44,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:44,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696645502] [2021-03-25 14:39:44,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:44,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:44,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:44,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:44,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:44,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696645502] [2021-03-25 14:39:44,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:44,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:44,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630178645] [2021-03-25 14:39:44,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:44,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:44,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:44,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:44,436 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 198 [2021-03-25 14:39:44,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 605 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:44,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 198 [2021-03-25 14:39:44,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:44,933 INFO L129 PetriNetUnfolder]: 2676/4800 cut-off events. [2021-03-25 14:39:44,934 INFO L130 PetriNetUnfolder]: For 25708/29085 co-relation queries the response was YES. [2021-03-25 14:39:44,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19300 conditions, 4800 events. 2676/4800 cut-off events. For 25708/29085 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 41392 event pairs, 1092 based on Foata normal form. 114/4092 useless extension candidates. Maximal degree in co-relation 19262. Up to 3354 conditions per place. [2021-03-25 14:39:44,973 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 3 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2021-03-25 14:39:44,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 70 transitions, 617 flow [2021-03-25 14:39:44,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:44,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:44,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2021-03-25 14:39:44,975 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8838383838383839 [2021-03-25 14:39:44,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 525 transitions. [2021-03-25 14:39:44,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 525 transitions. [2021-03-25 14:39:44,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:44,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 525 transitions. [2021-03-25 14:39:44,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,977 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:44,977 INFO L185 Difference]: Start difference. First operand has 82 places, 70 transitions, 605 flow. Second operand 3 states and 525 transitions. [2021-03-25 14:39:44,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 70 transitions, 617 flow [2021-03-25 14:39:45,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 70 transitions, 612 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:45,002 INFO L241 Difference]: Finished difference. Result has 84 places, 70 transitions, 611 flow [2021-03-25 14:39:45,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=611, PETRI_PLACES=84, PETRI_TRANSITIONS=70} [2021-03-25 14:39:45,002 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 30 predicate places. [2021-03-25 14:39:45,002 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:45,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 70 transitions, 611 flow [2021-03-25 14:39:45,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 70 transitions, 611 flow [2021-03-25 14:39:45,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 70 transitions, 611 flow [2021-03-25 14:39:45,378 INFO L129 PetriNetUnfolder]: 2675/4753 cut-off events. [2021-03-25 14:39:45,379 INFO L130 PetriNetUnfolder]: For 19911/22953 co-relation queries the response was YES. [2021-03-25 14:39:45,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18878 conditions, 4753 events. 2675/4753 cut-off events. For 19911/22953 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 40709 event pairs, 987 based on Foata normal form. 45/3962 useless extension candidates. Maximal degree in co-relation 18841. Up to 3357 conditions per place. [2021-03-25 14:39:45,445 INFO L142 LiptonReduction]: Number of co-enabled transitions 1220 [2021-03-25 14:39:46,170 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:39:46,171 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:46,171 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1169 [2021-03-25 14:39:46,171 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 611 flow [2021-03-25 14:39:46,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,171 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:46,171 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:46,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 14:39:46,171 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:46,172 INFO L82 PathProgramCache]: Analyzing trace with hash -800521181, now seen corresponding path program 1 times [2021-03-25 14:39:46,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:46,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825584097] [2021-03-25 14:39:46,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:46,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:46,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:46,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:46,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:46,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:46,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825584097] [2021-03-25 14:39:46,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:46,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:39:46,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545013081] [2021-03-25 14:39:46,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:39:46,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:46,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:39:46,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:39:46,217 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-25 14:39:46,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 611 flow. Second operand has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:46,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-25 14:39:46,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:46,596 INFO L129 PetriNetUnfolder]: 1989/3764 cut-off events. [2021-03-25 14:39:46,596 INFO L130 PetriNetUnfolder]: For 22422/32973 co-relation queries the response was YES. [2021-03-25 14:39:46,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17111 conditions, 3764 events. 1989/3764 cut-off events. For 22422/32973 co-relation queries the response was YES. Maximal size of possible extension queue 747. Compared 32297 event pairs, 294 based on Foata normal form. 1033/4226 useless extension candidates. Maximal degree in co-relation 17072. Up to 2883 conditions per place. [2021-03-25 14:39:46,620 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 14 selfloop transitions, 19 changer transitions 6/83 dead transitions. [2021-03-25 14:39:46,620 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 83 transitions, 755 flow [2021-03-25 14:39:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:39:46,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:39:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1172 transitions. [2021-03-25 14:39:46,622 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8455988455988456 [2021-03-25 14:39:46,622 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1172 transitions. [2021-03-25 14:39:46,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1172 transitions. [2021-03-25 14:39:46,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:46,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1172 transitions. [2021-03-25 14:39:46,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 167.42857142857142) internal successors, (1172), 7 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,626 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:46,626 INFO L185 Difference]: Start difference. First operand has 84 places, 70 transitions, 611 flow. Second operand 7 states and 1172 transitions. [2021-03-25 14:39:46,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 83 transitions, 755 flow [2021-03-25 14:39:46,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 83 transitions, 750 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 14:39:46,641 INFO L241 Difference]: Finished difference. Result has 92 places, 73 transitions, 689 flow [2021-03-25 14:39:46,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=689, PETRI_PLACES=92, PETRI_TRANSITIONS=73} [2021-03-25 14:39:46,642 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 38 predicate places. [2021-03-25 14:39:46,642 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:46,642 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 73 transitions, 689 flow [2021-03-25 14:39:46,642 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 73 transitions, 689 flow [2021-03-25 14:39:46,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 73 transitions, 689 flow [2021-03-25 14:39:46,906 INFO L129 PetriNetUnfolder]: 1956/3711 cut-off events. [2021-03-25 14:39:46,906 INFO L130 PetriNetUnfolder]: For 26287/35327 co-relation queries the response was YES. [2021-03-25 14:39:46,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19682 conditions, 3711 events. 1956/3711 cut-off events. For 26287/35327 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 32405 event pairs, 271 based on Foata normal form. 72/3203 useless extension candidates. Maximal degree in co-relation 19641. Up to 2874 conditions per place. [2021-03-25 14:39:46,953 INFO L142 LiptonReduction]: Number of co-enabled transitions 1314 [2021-03-25 14:39:47,181 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:39:47,181 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:39:47,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 539 [2021-03-25 14:39:47,182 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 73 transitions, 689 flow [2021-03-25 14:39:47,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:47,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:47,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 14:39:47,183 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:47,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:47,183 INFO L82 PathProgramCache]: Analyzing trace with hash 139161022, now seen corresponding path program 1 times [2021-03-25 14:39:47,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:47,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156047086] [2021-03-25 14:39:47,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:47,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:47,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:47,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:47,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:47,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:47,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:47,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156047086] [2021-03-25 14:39:47,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:47,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:39:47,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272928377] [2021-03-25 14:39:47,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:39:47,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:47,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:39:47,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:39:47,246 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-25 14:39:47,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 73 transitions, 689 flow. Second operand has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:47,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-25 14:39:47,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:47,569 INFO L129 PetriNetUnfolder]: 1438/2854 cut-off events. [2021-03-25 14:39:47,570 INFO L130 PetriNetUnfolder]: For 24914/48138 co-relation queries the response was YES. [2021-03-25 14:39:47,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16858 conditions, 2854 events. 1438/2854 cut-off events. For 24914/48138 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 24024 event pairs, 27 based on Foata normal form. 1323/3682 useless extension candidates. Maximal degree in co-relation 16815. Up to 2495 conditions per place. [2021-03-25 14:39:47,585 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 7 selfloop transitions, 28 changer transitions 8/79 dead transitions. [2021-03-25 14:39:47,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 79 transitions, 825 flow [2021-03-25 14:39:47,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 14:39:47,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 14:39:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1507 transitions. [2021-03-25 14:39:47,587 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.845679012345679 [2021-03-25 14:39:47,587 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1507 transitions. [2021-03-25 14:39:47,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1507 transitions. [2021-03-25 14:39:47,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:47,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1507 transitions. [2021-03-25 14:39:47,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 167.44444444444446) internal successors, (1507), 9 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,592 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:47,592 INFO L185 Difference]: Start difference. First operand has 92 places, 73 transitions, 689 flow. Second operand 9 states and 1507 transitions. [2021-03-25 14:39:47,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 79 transitions, 825 flow [2021-03-25 14:39:47,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 79 transitions, 734 flow, removed 25 selfloop flow, removed 8 redundant places. [2021-03-25 14:39:47,623 INFO L241 Difference]: Finished difference. Result has 95 places, 71 transitions, 657 flow [2021-03-25 14:39:47,623 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=657, PETRI_PLACES=95, PETRI_TRANSITIONS=71} [2021-03-25 14:39:47,623 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 41 predicate places. [2021-03-25 14:39:47,623 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:47,623 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 71 transitions, 657 flow [2021-03-25 14:39:47,623 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 71 transitions, 657 flow [2021-03-25 14:39:47,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 71 transitions, 657 flow [2021-03-25 14:39:47,792 INFO L129 PetriNetUnfolder]: 1284/2626 cut-off events. [2021-03-25 14:39:47,793 INFO L130 PetriNetUnfolder]: For 21041/24811 co-relation queries the response was YES. [2021-03-25 14:39:47,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14710 conditions, 2626 events. 1284/2626 cut-off events. For 21041/24811 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 23159 event pairs, 34 based on Foata normal form. 34/2171 useless extension candidates. Maximal degree in co-relation 14670. Up to 1837 conditions per place. [2021-03-25 14:39:47,824 INFO L142 LiptonReduction]: Number of co-enabled transitions 1338 [2021-03-25 14:39:48,419 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 184 [2021-03-25 14:39:48,617 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-25 14:39:49,932 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 339 DAG size of output: 260 [2021-03-25 14:39:50,379 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-03-25 14:39:50,400 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 14:39:50,400 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:39:50,400 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2777 [2021-03-25 14:39:50,401 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 71 transitions, 673 flow [2021-03-25 14:39:50,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:50,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:50,401 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] [2021-03-25 14:39:50,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 14:39:50,401 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:50,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:50,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1525483821, now seen corresponding path program 1 times [2021-03-25 14:39:50,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:50,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572967512] [2021-03-25 14:39:50,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:50,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:50,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:50,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:50,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:50,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:50,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:50,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:50,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:50,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:50,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:39:50,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:50,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:50,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572967512] [2021-03-25 14:39:50,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:50,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 14:39:50,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748629533] [2021-03-25 14:39:50,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 14:39:50,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:50,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 14:39:50,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 14:39:50,451 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 199 [2021-03-25 14:39:50,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 71 transitions, 673 flow. Second operand has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:50,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:50,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 199 [2021-03-25 14:39:50,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:50,731 INFO L129 PetriNetUnfolder]: 1177/2417 cut-off events. [2021-03-25 14:39:50,731 INFO L130 PetriNetUnfolder]: For 23682/37766 co-relation queries the response was YES. [2021-03-25 14:39:50,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15388 conditions, 2417 events. 1177/2417 cut-off events. For 23682/37766 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 20738 event pairs, 0 based on Foata normal form. 1089/3010 useless extension candidates. Maximal degree in co-relation 15346. Up to 1683 conditions per place. [2021-03-25 14:39:50,745 INFO L132 encePairwiseOnDemand]: 191/199 looper letters, 2 selfloop transitions, 30 changer transitions 18/75 dead transitions. [2021-03-25 14:39:50,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 75 transitions, 772 flow [2021-03-25 14:39:50,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 14:39:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 14:39:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1835 transitions. [2021-03-25 14:39:50,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.838282320694381 [2021-03-25 14:39:50,748 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1835 transitions. [2021-03-25 14:39:50,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1835 transitions. [2021-03-25 14:39:50,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:50,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1835 transitions. [2021-03-25 14:39:50,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 166.8181818181818) internal successors, (1835), 11 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:50,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 199.0) internal successors, (2388), 12 states have internal predecessors, (2388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:50,753 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 199.0) internal successors, (2388), 12 states have internal predecessors, (2388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:50,753 INFO L185 Difference]: Start difference. First operand has 95 places, 71 transitions, 673 flow. Second operand 11 states and 1835 transitions. [2021-03-25 14:39:50,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 75 transitions, 772 flow [2021-03-25 14:39:50,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 75 transitions, 631 flow, removed 40 selfloop flow, removed 10 redundant places. [2021-03-25 14:39:50,914 INFO L241 Difference]: Finished difference. Result has 98 places, 57 transitions, 469 flow [2021-03-25 14:39:50,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=469, PETRI_PLACES=98, PETRI_TRANSITIONS=57} [2021-03-25 14:39:50,915 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 44 predicate places. [2021-03-25 14:39:50,915 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:50,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 57 transitions, 469 flow [2021-03-25 14:39:50,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 57 transitions, 469 flow [2021-03-25 14:39:50,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 57 transitions, 469 flow [2021-03-25 14:39:50,941 INFO L129 PetriNetUnfolder]: 179/469 cut-off events. [2021-03-25 14:39:50,941 INFO L130 PetriNetUnfolder]: For 1897/2086 co-relation queries the response was YES. [2021-03-25 14:39:50,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2105 conditions, 469 events. 179/469 cut-off events. For 1897/2086 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 3273 event pairs, 0 based on Foata normal form. 9/424 useless extension candidates. Maximal degree in co-relation 2069. Up to 130 conditions per place. [2021-03-25 14:39:50,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 670 [2021-03-25 14:39:51,546 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 184 [2021-03-25 14:39:51,755 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-25 14:39:53,009 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 339 DAG size of output: 260 [2021-03-25 14:39:53,404 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-03-25 14:39:53,616 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 14:39:53,942 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-25 14:39:54,062 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-25 14:39:54,352 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 14:39:54,617 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 14:39:55,075 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-25 14:39:55,495 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-25 14:39:55,670 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 14:39:55,979 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-25 14:39:56,109 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-25 14:39:56,114 INFO L154 LiptonReduction]: Checked pairs total: 179 [2021-03-25 14:39:56,114 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-25 14:39:56,114 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5199 [2021-03-25 14:39:56,115 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 48 transitions, 425 flow [2021-03-25 14:39:56,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:56,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:56,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:56,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 14:39:56,115 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:56,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:56,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1769750843, now seen corresponding path program 1 times [2021-03-25 14:39:56,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:56,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290415108] [2021-03-25 14:39:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:39:56,148 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:39:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:39:56,174 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:39:56,201 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 14:39:56,201 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 14:39:56,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 14:39:56,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:39:56 BasicIcfg [2021-03-25 14:39:56,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:39:56,278 INFO L168 Benchmark]: Toolchain (without parser) took 31243.71 ms. Allocated memory was 255.9 MB in the beginning and 1.2 GB in the end (delta: 973.1 MB). Free memory was 236.8 MB in the beginning and 1.1 GB in the end (delta: -899.6 MB). Peak memory consumption was 74.7 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:56,278 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:39:56,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.40 ms. Allocated memory was 255.9 MB in the beginning and 408.9 MB in the end (delta: 153.1 MB). Free memory was 236.8 MB in the beginning and 369.9 MB in the end (delta: -133.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:56,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.55 ms. Allocated memory is still 408.9 MB. Free memory was 369.9 MB in the beginning and 366.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:56,279 INFO L168 Benchmark]: Boogie Preprocessor took 26.17 ms. Allocated memory is still 408.9 MB. Free memory was 366.9 MB in the beginning and 364.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:56,279 INFO L168 Benchmark]: RCFGBuilder took 1471.84 ms. Allocated memory was 408.9 MB in the beginning and 490.7 MB in the end (delta: 81.8 MB). Free memory was 364.9 MB in the beginning and 459.3 MB in the end (delta: -94.4 MB). Peak memory consumption was 58.9 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:56,279 INFO L168 Benchmark]: TraceAbstraction took 29145.10 ms. Allocated memory was 490.7 MB in the beginning and 1.2 GB in the end (delta: 738.2 MB). Free memory was 459.3 MB in the beginning and 1.1 GB in the end (delta: -677.1 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.0 GB. [2021-03-25 14:39:56,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 561.40 ms. Allocated memory was 255.9 MB in the beginning and 408.9 MB in the end (delta: 153.1 MB). Free memory was 236.8 MB in the beginning and 369.9 MB in the end (delta: -133.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.55 ms. Allocated memory is still 408.9 MB. Free memory was 369.9 MB in the beginning and 366.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.17 ms. Allocated memory is still 408.9 MB. Free memory was 366.9 MB in the beginning and 364.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1471.84 ms. Allocated memory was 408.9 MB in the beginning and 490.7 MB in the end (delta: 81.8 MB). Free memory was 364.9 MB in the beginning and 459.3 MB in the end (delta: -94.4 MB). Peak memory consumption was 58.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 29145.10 ms. Allocated memory was 490.7 MB in the beginning and 1.2 GB in the end (delta: 738.2 MB). Free memory was 459.3 MB in the beginning and 1.1 GB in the end (delta: -677.1 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7644.0ms, 119 PlacesBefore, 54 PlacesAfterwards, 108 TransitionsBefore, 42 TransitionsAfterwards, 2406 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4010 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2326, positive: 2230, positive conditional: 0, positive unconditional: 2230, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1598, positive: 1564, positive conditional: 0, positive unconditional: 1564, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1598, positive: 1564, positive conditional: 0, positive unconditional: 1564, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1598, positive: 1545, positive conditional: 0, positive unconditional: 1545, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 485, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 432, negative conditional: 0, negative unconditional: 432, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2326, positive: 666, positive conditional: 0, positive unconditional: 666, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 1598, unknown conditional: 0, unknown unconditional: 1598] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 199, Positive conditional cache size: 0, Positive unconditional cache size: 199, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3381.8ms, 50 PlacesBefore, 38 PlacesAfterwards, 35 TransitionsBefore, 27 TransitionsAfterwards, 362 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 1154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 467, positive: 398, positive conditional: 0, positive unconditional: 398, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 289, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 252, negative conditional: 0, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 467, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 237, Positive cache size: 209, Positive conditional cache size: 0, Positive unconditional cache size: 209, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1100.0ms, 39 PlacesBefore, 37 PlacesAfterwards, 29 TransitionsBefore, 27 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 348, positive: 288, positive conditional: 0, positive unconditional: 288, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 348, positive: 286, positive conditional: 0, positive unconditional: 286, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 239, Positive cache size: 211, Positive conditional cache size: 0, Positive unconditional cache size: 211, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.4ms, 39 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 280 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 241, Positive cache size: 211, Positive conditional cache size: 0, Positive unconditional cache size: 211, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5ms, 41 PlacesBefore, 41 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 316 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 102, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 102, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0ms, 45 PlacesBefore, 45 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 267 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 81, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.1ms, 49 PlacesBefore, 49 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 284 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 249, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.2ms, 54 PlacesBefore, 54 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 584 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 247 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 65, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 65, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 252, Positive cache size: 221, Positive conditional cache size: 0, Positive unconditional cache size: 221, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 670.5ms, 57 PlacesBefore, 57 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 618 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 556 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 159, positive: 135, positive conditional: 0, positive unconditional: 135, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 159, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 225, Positive conditional cache size: 0, Positive unconditional cache size: 225, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.3ms, 59 PlacesBefore, 59 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 618 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 296 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 225, Positive conditional cache size: 0, Positive unconditional cache size: 225, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0ms, 61 PlacesBefore, 61 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 401 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 112, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 112, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 249, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.8ms, 65 PlacesBefore, 65 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 754 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 469 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 139, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 139, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 249, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.1ms, 70 PlacesBefore, 70 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 950 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 811 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 246, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 246, positive: 211, positive conditional: 0, positive unconditional: 211, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 254, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.2ms, 74 PlacesBefore, 74 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 984 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 556 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 204, positive: 184, positive conditional: 0, positive unconditional: 184, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 204, positive: 183, positive conditional: 0, positive unconditional: 183, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 232, Positive conditional cache size: 0, Positive unconditional cache size: 232, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.6ms, 77 PlacesBefore, 77 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 976 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 549 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 212, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 212, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 232, Positive conditional cache size: 0, Positive unconditional cache size: 232, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.1ms, 79 PlacesBefore, 79 PlacesAfterwards, 61 TransitionsBefore, 61 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 549 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 185, positive: 165, positive conditional: 0, positive unconditional: 165, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 185, positive: 165, positive conditional: 0, positive unconditional: 165, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 232, Positive conditional cache size: 0, Positive unconditional cache size: 232, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 523.3ms, 82 PlacesBefore, 82 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 1220 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 232, Positive conditional cache size: 0, Positive unconditional cache size: 232, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1168.2ms, 84 PlacesBefore, 84 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 1220 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 232, Positive conditional cache size: 0, Positive unconditional cache size: 232, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 538.8ms, 92 PlacesBefore, 92 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 1314 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 232, Positive conditional cache size: 0, Positive unconditional cache size: 232, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2777.0ms, 95 PlacesBefore, 95 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 1338 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 246, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5199.0ms, 98 PlacesBefore, 86 PlacesAfterwards, 57 TransitionsBefore, 48 TransitionsAfterwards, 670 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 179 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 179, positive: 179, positive conditional: 0, positive unconditional: 179, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 179, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p3_EAX = 0; [L714] 0 int a = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L720] 0 int y = 0; [L722] 0 int z = 0; [L723] 0 _Bool z$flush_delayed; [L724] 0 int z$mem_tmp; [L725] 0 _Bool z$r_buff0_thd0; [L726] 0 _Bool z$r_buff0_thd1; [L727] 0 _Bool z$r_buff0_thd2; [L728] 0 _Bool z$r_buff0_thd3; [L729] 0 _Bool z$r_buff0_thd4; [L730] 0 _Bool z$r_buff1_thd0; [L731] 0 _Bool z$r_buff1_thd1; [L732] 0 _Bool z$r_buff1_thd2; [L733] 0 _Bool z$r_buff1_thd3; [L734] 0 _Bool z$r_buff1_thd4; [L735] 0 _Bool z$read_delayed; [L736] 0 int *z$read_delayed_var; [L737] 0 int z$w_buff0; [L738] 0 _Bool z$w_buff0_used; [L739] 0 int z$w_buff1; [L740] 0 _Bool z$w_buff1_used; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1533; [L835] FCALL, FORK 0 pthread_create(&t1533, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t1534; [L837] FCALL, FORK 0 pthread_create(&t1534, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1535; [L839] FCALL, FORK 0 pthread_create(&t1535, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1536; [L841] FCALL, FORK 0 pthread_create(&t1536, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 4 z$w_buff1 = z$w_buff0 [L797] 4 z$w_buff0 = 2 [L798] 4 z$w_buff1_used = z$w_buff0_used [L799] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L801] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L802] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L803] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L804] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L805] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L812] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L812] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L813] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L813] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L814] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L815] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L816] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L783] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L784] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L784] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L785] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L785] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L791] 3 return 0; [L819] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L821] 4 return 0; [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L855] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L856] 0 z$flush_delayed = weak$$choice2 [L857] 0 z$mem_tmp = z [L858] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L858] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L866] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L866] 0 z = z$flush_delayed ? z$mem_tmp : z [L867] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 111 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 28966.1ms, OverallIterations: 21, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3547.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7723.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 73 SDtfs, 41 SDslu, 31 SDs, 0 SdLazy, 477 SolverSat, 153 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 424.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 500.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=689occurred in iteration=18, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 46.1ms SsaConstructionTime, 377.2ms SatisfiabilityAnalysisTime, 1138.3ms InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 2058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...