/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:45:58,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:45:58,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:45:58,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:45:58,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:45:58,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:45:58,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:45:58,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:45:58,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:45:58,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:45:58,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:45:58,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:45:58,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:45:58,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:45:58,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:45:58,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:45:58,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:45:58,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:45:58,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:45:58,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:45:58,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:45:58,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:45:58,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:45:58,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:45:58,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:45:58,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:45:58,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:45:58,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:45:58,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:45:58,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:45:58,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:45:58,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:45:58,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:45:58,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:45:58,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:45:58,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:45:58,477 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:45:58,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:45:58,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:45:58,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:45:58,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:45:58,517 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:45:58,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:45:58,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:45:58,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:45:58,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:45:58,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:45:58,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:45:58,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:45:58,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:45:58,520 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:45:58,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:45:58,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:45:58,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:45:58,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:45:58,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:45:58,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:45:58,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:45:58,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:45:58,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:45:58,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:45:58,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:45:58,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:45:58,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:45:58,522 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:45:58,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:45:58,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:45:58,522 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:45:58,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:45:58,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:45:58,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:45:58,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:45:58,835 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:45:58,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2021-03-26 10:45:58,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ef52f80/a2e0551e58f54205b10d1f2fb43a2483/FLAGeecb15583 [2021-03-26 10:45:59,802 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:45:59,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2021-03-26 10:45:59,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ef52f80/a2e0551e58f54205b10d1f2fb43a2483/FLAGeecb15583 [2021-03-26 10:45:59,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ef52f80/a2e0551e58f54205b10d1f2fb43a2483 [2021-03-26 10:45:59,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:45:59,920 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:45:59,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:45:59,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:45:59,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:45:59,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:45:59" (1/1) ... [2021-03-26 10:45:59,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c69476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:45:59, skipping insertion in model container [2021-03-26 10:45:59,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:45:59" (1/1) ... [2021-03-26 10:45:59,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:45:59,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:46:00,156 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/thin002_pso.oepc.i[950,963] [2021-03-26 10:46:00,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:46:00,400 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:46:00,415 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/thin002_pso.oepc.i[950,963] [2021-03-26 10:46:00,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:46:00,524 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:46:00,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00 WrapperNode [2021-03-26 10:46:00,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:46:00,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:46:00,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:46:00,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:46:00,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:46:00,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:46:00,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:46:00,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:46:00,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (1/1) ... [2021-03-26 10:46:00,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:46:00,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:46:00,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:46:00,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:46:00,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (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 [2021-03-26 10:46:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:46:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:46:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:46:00,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:46:00,713 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:46:00,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:46:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:46:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:46:00,714 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:46:00,714 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:46:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 10:46:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 10:46:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:46:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:46:00,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:46:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:46:00,717 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:46:01,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:46:01,023 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:46:01,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:46:01 BoogieIcfgContainer [2021-03-26 10:46:01,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:46:01,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:46:01,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:46:01,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:46:01,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:45:59" (1/3) ... [2021-03-26 10:46:01,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3e2ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:46:01, skipping insertion in model container [2021-03-26 10:46:01,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:46:00" (2/3) ... [2021-03-26 10:46:01,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3e2ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:46:01, skipping insertion in model container [2021-03-26 10:46:01,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:46:01" (3/3) ... [2021-03-26 10:46:01,033 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2021-03-26 10:46:01,038 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:46:01,042 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:46:01,043 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:46:01,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,077 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,077 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,077 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,078 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,080 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,082 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,082 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,082 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,083 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,083 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,083 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,083 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,083 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,097 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,099 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,105 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,106 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,106 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,106 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,111 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:46:01,115 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:46:01,128 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 10:46:01,145 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:46:01,145 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:46:01,146 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:46:01,146 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:46:01,146 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:46:01,146 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:46:01,146 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:46:01,146 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:46:01,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-03-26 10:46:01,201 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-03-26 10:46:01,202 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:01,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-03-26 10:46:01,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 91 transitions, 202 flow [2021-03-26 10:46:01,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 73 transitions, 158 flow [2021-03-26 10:46:01,210 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:01,221 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 73 transitions, 158 flow [2021-03-26 10:46:01,224 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 73 transitions, 158 flow [2021-03-26 10:46:01,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 73 transitions, 158 flow [2021-03-26 10:46:01,241 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-03-26 10:46:01,241 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:01,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:46:01,244 INFO L142 LiptonReduction]: Number of co-enabled transitions 1392 [2021-03-26 10:46:02,716 INFO L154 LiptonReduction]: Checked pairs total: 1938 [2021-03-26 10:46:02,717 INFO L156 LiptonReduction]: Total number of compositions: 46 [2021-03-26 10:46:02,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1512 [2021-03-26 10:46:02,740 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 10:46:02,740 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:02,741 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:02,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:02,743 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:02,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:02,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1692446056, now seen corresponding path program 1 times [2021-03-26 10:46:02,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:02,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927603960] [2021-03-26 10:46:02,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:03,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:03,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:46:03,089 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:46:03,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:46:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:03,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927603960] [2021-03-26 10:46:03,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:03,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:46:03,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158866485] [2021-03-26 10:46:03,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:46:03,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:03,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:46:03,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:46:03,132 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2021-03-26 10:46:03,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:03,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2021-03-26 10:46:03,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:03,195 INFO L129 PetriNetUnfolder]: 45/141 cut-off events. [2021-03-26 10:46:03,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:03,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 141 events. 45/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 606 event pairs, 23 based on Foata normal form. 1/125 useless extension candidates. Maximal degree in co-relation 216. Up to 76 conditions per place. [2021-03-26 10:46:03,200 INFO L132 encePairwiseOnDemand]: 131/137 looper letters, 6 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2021-03-26 10:46:03,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 96 flow [2021-03-26 10:46:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:46:03,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:46:03,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2021-03-26 10:46:03,216 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8467153284671532 [2021-03-26 10:46:03,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2021-03-26 10:46:03,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2021-03-26 10:46:03,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:03,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2021-03-26 10:46:03,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,236 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,238 INFO L185 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 3 states and 348 transitions. [2021-03-26 10:46:03,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 96 flow [2021-03-26 10:46:03,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 31 transitions, 92 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 10:46:03,243 INFO L241 Difference]: Finished difference. Result has 39 places, 31 transitions, 95 flow [2021-03-26 10:46:03,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, 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=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2021-03-26 10:46:03,245 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2021-03-26 10:46:03,245 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:03,245 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 31 transitions, 95 flow [2021-03-26 10:46:03,246 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 31 transitions, 95 flow [2021-03-26 10:46:03,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 31 transitions, 95 flow [2021-03-26 10:46:03,281 INFO L129 PetriNetUnfolder]: 45/141 cut-off events. [2021-03-26 10:46:03,281 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 10:46:03,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 141 events. 45/141 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 588 event pairs, 23 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 220. Up to 76 conditions per place. [2021-03-26 10:46:03,286 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-26 10:46:03,850 INFO L154 LiptonReduction]: Checked pairs total: 480 [2021-03-26 10:46:03,850 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 10:46:03,850 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 605 [2021-03-26 10:46:03,852 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 87 flow [2021-03-26 10:46:03,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:03,853 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:03,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:46:03,853 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:03,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:03,854 INFO L82 PathProgramCache]: Analyzing trace with hash 2088650593, now seen corresponding path program 1 times [2021-03-26 10:46:03,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:03,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34712214] [2021-03-26 10:46:03,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:03,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:03,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:46:03,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:03,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:03,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34712214] [2021-03-26 10:46:03,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:03,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:46:03,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634121101] [2021-03-26 10:46:03,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:46:03,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:03,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:46:03,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:46:03,902 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 141 [2021-03-26 10:46:03,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:03,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 141 [2021-03-26 10:46:03,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:03,928 INFO L129 PetriNetUnfolder]: 29/98 cut-off events. [2021-03-26 10:46:03,929 INFO L130 PetriNetUnfolder]: For 22/46 co-relation queries the response was YES. [2021-03-26 10:46:03,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 98 events. 29/98 cut-off events. For 22/46 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 370 event pairs, 14 based on Foata normal form. 4/92 useless extension candidates. Maximal degree in co-relation 173. Up to 53 conditions per place. [2021-03-26 10:46:03,930 INFO L132 encePairwiseOnDemand]: 138/141 looper letters, 1 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-26 10:46:03,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 95 flow [2021-03-26 10:46:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:46:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:46:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2021-03-26 10:46:03,933 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9101654846335697 [2021-03-26 10:46:03,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2021-03-26 10:46:03,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2021-03-26 10:46:03,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:03,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2021-03-26 10:46:03,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:03,939 INFO L185 Difference]: Start difference. First operand has 35 places, 27 transitions, 87 flow. Second operand 3 states and 385 transitions. [2021-03-26 10:46:03,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 95 flow [2021-03-26 10:46:03,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:46:03,941 INFO L241 Difference]: Finished difference. Result has 37 places, 27 transitions, 93 flow [2021-03-26 10:46:03,941 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2021-03-26 10:46:03,942 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2021-03-26 10:46:03,942 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:03,942 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 27 transitions, 93 flow [2021-03-26 10:46:03,943 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 27 transitions, 93 flow [2021-03-26 10:46:03,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 93 flow [2021-03-26 10:46:03,954 INFO L129 PetriNetUnfolder]: 29/106 cut-off events. [2021-03-26 10:46:03,954 INFO L130 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES. [2021-03-26 10:46:03,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 106 events. 29/106 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 444 event pairs, 18 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 185. Up to 53 conditions per place. [2021-03-26 10:46:03,958 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-26 10:46:04,131 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-03-26 10:46:04,399 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2021-03-26 10:46:04,469 INFO L154 LiptonReduction]: Checked pairs total: 316 [2021-03-26 10:46:04,469 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:46:04,469 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 527 [2021-03-26 10:46:04,470 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 91 flow [2021-03-26 10:46:04,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:04,471 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:04,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:46:04,471 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:04,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:04,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2079597034, now seen corresponding path program 1 times [2021-03-26 10:46:04,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:04,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145660161] [2021-03-26 10:46:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:04,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:04,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:46:04,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:04,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:04,530 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:46:04,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:46:04,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:04,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145660161] [2021-03-26 10:46:04,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:04,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:46:04,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401583898] [2021-03-26 10:46:04,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:46:04,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:04,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:46:04,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:46:04,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 142 [2021-03-26 10:46:04,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:04,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 142 [2021-03-26 10:46:04,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:04,597 INFO L129 PetriNetUnfolder]: 52/165 cut-off events. [2021-03-26 10:46:04,597 INFO L130 PetriNetUnfolder]: For 86/471 co-relation queries the response was YES. [2021-03-26 10:46:04,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 165 events. 52/165 cut-off events. For 86/471 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 836 event pairs, 12 based on Foata normal form. 17/172 useless extension candidates. Maximal degree in co-relation 382. Up to 82 conditions per place. [2021-03-26 10:46:04,599 INFO L132 encePairwiseOnDemand]: 135/142 looper letters, 9 selfloop transitions, 12 changer transitions 0/36 dead transitions. [2021-03-26 10:46:04,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 176 flow [2021-03-26 10:46:04,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:46:04,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:46:04,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 560 transitions. [2021-03-26 10:46:04,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7887323943661971 [2021-03-26 10:46:04,602 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 560 transitions. [2021-03-26 10:46:04,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 560 transitions. [2021-03-26 10:46:04,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:04,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 560 transitions. [2021-03-26 10:46:04,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,605 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,606 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 91 flow. Second operand 5 states and 560 transitions. [2021-03-26 10:46:04,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 176 flow [2021-03-26 10:46:04,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:46:04,608 INFO L241 Difference]: Finished difference. Result has 41 places, 33 transitions, 172 flow [2021-03-26 10:46:04,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2021-03-26 10:46:04,609 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2021-03-26 10:46:04,609 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:04,609 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 33 transitions, 172 flow [2021-03-26 10:46:04,610 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 33 transitions, 172 flow [2021-03-26 10:46:04,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 33 transitions, 172 flow [2021-03-26 10:46:04,621 INFO L129 PetriNetUnfolder]: 41/143 cut-off events. [2021-03-26 10:46:04,621 INFO L130 PetriNetUnfolder]: For 111/225 co-relation queries the response was YES. [2021-03-26 10:46:04,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 143 events. 41/143 cut-off events. For 111/225 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 721 event pairs, 9 based on Foata normal form. 1/139 useless extension candidates. Maximal degree in co-relation 394. Up to 73 conditions per place. [2021-03-26 10:46:04,623 INFO L142 LiptonReduction]: Number of co-enabled transitions 344 [2021-03-26 10:46:04,630 INFO L154 LiptonReduction]: Checked pairs total: 208 [2021-03-26 10:46:04,630 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:46:04,630 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 10:46:04,632 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 172 flow [2021-03-26 10:46:04,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,632 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:04,632 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:04,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:46:04,633 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:04,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:04,634 INFO L82 PathProgramCache]: Analyzing trace with hash -155894057, now seen corresponding path program 1 times [2021-03-26 10:46:04,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:04,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621833016] [2021-03-26 10:46:04,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:04,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:04,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:04,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:04,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:04,716 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:46:04,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:46:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:04,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621833016] [2021-03-26 10:46:04,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:04,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:46:04,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532225007] [2021-03-26 10:46:04,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:46:04,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:04,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:46:04,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:46:04,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 142 [2021-03-26 10:46:04,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:04,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 142 [2021-03-26 10:46:04,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:04,780 INFO L129 PetriNetUnfolder]: 39/154 cut-off events. [2021-03-26 10:46:04,781 INFO L130 PetriNetUnfolder]: For 347/1308 co-relation queries the response was YES. [2021-03-26 10:46:04,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 154 events. 39/154 cut-off events. For 347/1308 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 854 event pairs, 3 based on Foata normal form. 18/164 useless extension candidates. Maximal degree in co-relation 474. Up to 70 conditions per place. [2021-03-26 10:46:04,783 INFO L132 encePairwiseOnDemand]: 138/142 looper letters, 11 selfloop transitions, 3 changer transitions 8/37 dead transitions. [2021-03-26 10:46:04,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 37 transitions, 248 flow [2021-03-26 10:46:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:46:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:46:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2021-03-26 10:46:04,785 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7852112676056338 [2021-03-26 10:46:04,785 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 446 transitions. [2021-03-26 10:46:04,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 446 transitions. [2021-03-26 10:46:04,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:04,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 446 transitions. [2021-03-26 10:46:04,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,788 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,788 INFO L185 Difference]: Start difference. First operand has 41 places, 33 transitions, 172 flow. Second operand 4 states and 446 transitions. [2021-03-26 10:46:04,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 37 transitions, 248 flow [2021-03-26 10:46:04,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 240 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 10:46:04,791 INFO L241 Difference]: Finished difference. Result has 45 places, 25 transitions, 126 flow [2021-03-26 10:46:04,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=25} [2021-03-26 10:46:04,791 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, 5 predicate places. [2021-03-26 10:46:04,791 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:04,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 25 transitions, 126 flow [2021-03-26 10:46:04,792 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 25 transitions, 126 flow [2021-03-26 10:46:04,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 25 transitions, 126 flow [2021-03-26 10:46:04,797 INFO L129 PetriNetUnfolder]: 13/59 cut-off events. [2021-03-26 10:46:04,797 INFO L130 PetriNetUnfolder]: For 93/112 co-relation queries the response was YES. [2021-03-26 10:46:04,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 59 events. 13/59 cut-off events. For 93/112 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 207 event pairs, 5 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 173. Up to 29 conditions per place. [2021-03-26 10:46:04,798 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-26 10:46:04,800 INFO L154 LiptonReduction]: Checked pairs total: 128 [2021-03-26 10:46:04,801 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:46:04,801 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 10:46:04,802 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 25 transitions, 126 flow [2021-03-26 10:46:04,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,802 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:04,802 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:04,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:46:04,803 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:04,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:04,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1206573239, now seen corresponding path program 1 times [2021-03-26 10:46:04,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:04,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657766823] [2021-03-26 10:46:04,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:04,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:04,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:04,834 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:46:04,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:46:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:04,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657766823] [2021-03-26 10:46:04,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:04,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:46:04,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931368080] [2021-03-26 10:46:04,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:46:04,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:04,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:46:04,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:46:04,845 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 142 [2021-03-26 10:46:04,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 25 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:04,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 142 [2021-03-26 10:46:04,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:04,862 INFO L129 PetriNetUnfolder]: 10/56 cut-off events. [2021-03-26 10:46:04,862 INFO L130 PetriNetUnfolder]: For 147/236 co-relation queries the response was YES. [2021-03-26 10:46:04,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 56 events. 10/56 cut-off events. For 147/236 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 170 event pairs, 2 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 166. Up to 24 conditions per place. [2021-03-26 10:46:04,863 INFO L132 encePairwiseOnDemand]: 139/142 looper letters, 9 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2021-03-26 10:46:04,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 28 transitions, 174 flow [2021-03-26 10:46:04,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:46:04,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:46:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2021-03-26 10:46:04,864 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8192488262910798 [2021-03-26 10:46:04,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2021-03-26 10:46:04,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2021-03-26 10:46:04,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:04,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2021-03-26 10:46:04,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,867 INFO L185 Difference]: Start difference. First operand has 44 places, 25 transitions, 126 flow. Second operand 3 states and 349 transitions. [2021-03-26 10:46:04,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 28 transitions, 174 flow [2021-03-26 10:46:04,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 120 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-03-26 10:46:04,872 INFO L241 Difference]: Finished difference. Result has 38 places, 25 transitions, 93 flow [2021-03-26 10:46:04,872 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2021-03-26 10:46:04,872 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2021-03-26 10:46:04,872 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:04,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 25 transitions, 93 flow [2021-03-26 10:46:04,879 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 25 transitions, 93 flow [2021-03-26 10:46:04,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 25 transitions, 93 flow [2021-03-26 10:46:04,883 INFO L129 PetriNetUnfolder]: 10/54 cut-off events. [2021-03-26 10:46:04,883 INFO L130 PetriNetUnfolder]: For 14/22 co-relation queries the response was YES. [2021-03-26 10:46:04,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 54 events. 10/54 cut-off events. For 14/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 174 event pairs, 6 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 102. Up to 24 conditions per place. [2021-03-26 10:46:04,884 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-26 10:46:04,940 INFO L154 LiptonReduction]: Checked pairs total: 225 [2021-03-26 10:46:04,940 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:46:04,940 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-26 10:46:04,942 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 92 flow [2021-03-26 10:46:04,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:04,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:04,943 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:04,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:46:04,943 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:04,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:04,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1639921362, now seen corresponding path program 1 times [2021-03-26 10:46:04,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:04,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425588257] [2021-03-26 10:46:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:05,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:05,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:05,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:05,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:05,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425588257] [2021-03-26 10:46:05,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:05,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:46:05,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991550572] [2021-03-26 10:46:05,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:46:05,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:05,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:46:05,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:46:05,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 144 [2021-03-26 10:46:05,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:05,015 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 144 [2021-03-26 10:46:05,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:05,044 INFO L129 PetriNetUnfolder]: 11/62 cut-off events. [2021-03-26 10:46:05,044 INFO L130 PetriNetUnfolder]: For 60/93 co-relation queries the response was YES. [2021-03-26 10:46:05,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 62 events. 11/62 cut-off events. For 60/93 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 231 event pairs, 7 based on Foata normal form. 5/63 useless extension candidates. Maximal degree in co-relation 134. Up to 27 conditions per place. [2021-03-26 10:46:05,045 INFO L132 encePairwiseOnDemand]: 140/144 looper letters, 1 selfloop transitions, 3 changer transitions 2/25 dead transitions. [2021-03-26 10:46:05,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 111 flow [2021-03-26 10:46:05,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:46:05,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:46:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2021-03-26 10:46:05,047 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.859375 [2021-03-26 10:46:05,047 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 495 transitions. [2021-03-26 10:46:05,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 495 transitions. [2021-03-26 10:46:05,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:05,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 495 transitions. [2021-03-26 10:46:05,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,050 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,051 INFO L185 Difference]: Start difference. First operand has 37 places, 24 transitions, 92 flow. Second operand 4 states and 495 transitions. [2021-03-26 10:46:05,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 111 flow [2021-03-26 10:46:05,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 25 transitions, 103 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:46:05,052 INFO L241 Difference]: Finished difference. Result has 40 places, 23 transitions, 95 flow [2021-03-26 10:46:05,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2021-03-26 10:46:05,053 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2021-03-26 10:46:05,053 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:05,053 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 23 transitions, 95 flow [2021-03-26 10:46:05,053 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 23 transitions, 95 flow [2021-03-26 10:46:05,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 23 transitions, 95 flow [2021-03-26 10:46:05,056 INFO L129 PetriNetUnfolder]: 4/35 cut-off events. [2021-03-26 10:46:05,057 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 10:46:05,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 35 events. 4/35 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 74 event pairs, 3 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 74. Up to 14 conditions per place. [2021-03-26 10:46:05,057 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 10:46:05,059 INFO L154 LiptonReduction]: Checked pairs total: 95 [2021-03-26 10:46:05,059 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:46:05,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 10:46:05,067 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 95 flow [2021-03-26 10:46:05,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:05,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:05,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:46:05,069 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:05,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:05,071 INFO L82 PathProgramCache]: Analyzing trace with hash -613017943, now seen corresponding path program 1 times [2021-03-26 10:46:05,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:05,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980403865] [2021-03-26 10:46:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:05,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:05,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:05,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:05,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:05,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:05,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980403865] [2021-03-26 10:46:05,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:05,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:46:05,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130015847] [2021-03-26 10:46:05,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:46:05,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:05,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:46:05,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:46:05,123 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 144 [2021-03-26 10:46:05,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:05,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 144 [2021-03-26 10:46:05,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:05,147 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2021-03-26 10:46:05,147 INFO L130 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2021-03-26 10:46:05,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 41 events. 3/41 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 2 based on Foata normal form. 3/43 useless extension candidates. Maximal degree in co-relation 90. Up to 15 conditions per place. [2021-03-26 10:46:05,148 INFO L132 encePairwiseOnDemand]: 140/144 looper letters, 1 selfloop transitions, 3 changer transitions 3/24 dead transitions. [2021-03-26 10:46:05,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 24 transitions, 112 flow [2021-03-26 10:46:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:46:05,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:46:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2021-03-26 10:46:05,149 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8541666666666666 [2021-03-26 10:46:05,150 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2021-03-26 10:46:05,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2021-03-26 10:46:05,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:05,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2021-03-26 10:46:05,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,152 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,153 INFO L185 Difference]: Start difference. First operand has 40 places, 23 transitions, 95 flow. Second operand 4 states and 492 transitions. [2021-03-26 10:46:05,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 24 transitions, 112 flow [2021-03-26 10:46:05,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 24 transitions, 96 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-26 10:46:05,154 INFO L241 Difference]: Finished difference. Result has 40 places, 21 transitions, 84 flow [2021-03-26 10:46:05,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=40, PETRI_TRANSITIONS=21} [2021-03-26 10:46:05,154 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2021-03-26 10:46:05,154 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:05,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 21 transitions, 84 flow [2021-03-26 10:46:05,155 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 21 transitions, 84 flow [2021-03-26 10:46:05,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 21 transitions, 84 flow [2021-03-26 10:46:05,157 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 10:46:05,157 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 10:46:05,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 21 events. 0/21 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-26 10:46:05,158 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-26 10:46:05,235 INFO L154 LiptonReduction]: Checked pairs total: 73 [2021-03-26 10:46:05,235 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:46:05,236 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-26 10:46:05,236 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 78 flow [2021-03-26 10:46:05,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,237 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:46:05,237 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:46:05,237 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:46:05,237 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:46:05,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:46:05,237 INFO L82 PathProgramCache]: Analyzing trace with hash 862101634, now seen corresponding path program 1 times [2021-03-26 10:46:05,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:46:05,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468099748] [2021-03-26 10:46:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:46:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:46:05,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:05,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:05,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:46:05,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:46:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:46:05,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468099748] [2021-03-26 10:46:05,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:46:05,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:46:05,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468569315] [2021-03-26 10:46:05,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:46:05,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:46:05,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:46:05,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:46:05,302 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 147 [2021-03-26 10:46:05,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 125.75) internal successors, (503), 4 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:46:05,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 147 [2021-03-26 10:46:05,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:46:05,316 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-26 10:46:05,316 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-03-26 10:46:05,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 17 events. 0/17 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 2/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 10:46:05,317 INFO L132 encePairwiseOnDemand]: 144/147 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-03-26 10:46:05,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 17 transitions, 74 flow [2021-03-26 10:46:05,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:46:05,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:46:05,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 505 transitions. [2021-03-26 10:46:05,318 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.858843537414966 [2021-03-26 10:46:05,318 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 505 transitions. [2021-03-26 10:46:05,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 505 transitions. [2021-03-26 10:46:05,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:46:05,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 505 transitions. [2021-03-26 10:46:05,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,321 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,321 INFO L185 Difference]: Start difference. First operand has 37 places, 18 transitions, 78 flow. Second operand 4 states and 505 transitions. [2021-03-26 10:46:05,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 17 transitions, 74 flow [2021-03-26 10:46:05,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 17 transitions, 48 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-26 10:46:05,322 INFO L241 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2021-03-26 10:46:05,322 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2021-03-26 10:46:05,322 INFO L343 CegarLoopForPetriNet]: 40 programPoint places, -11 predicate places. [2021-03-26 10:46:05,322 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:46:05,323 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 0 transitions, 0 flow [2021-03-26 10:46:05,323 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 0 transitions, 0 flow [2021-03-26 10:46:05,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:46:05,323 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:46:05,323 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:46:05,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 10:46:05,323 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:46:05,323 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:46:05,323 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:46:05,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 10:46:05,324 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:46:05,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 125.75) internal successors, (503), 4 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:46:05,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:46:05,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:46:05 BasicIcfg [2021-03-26 10:46:05,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:46:05,329 INFO L168 Benchmark]: Toolchain (without parser) took 5409.31 ms. Allocated memory was 255.9 MB in the beginning and 400.6 MB in the end (delta: 144.7 MB). Free memory was 234.0 MB in the beginning and 190.8 MB in the end (delta: 43.2 MB). Peak memory consumption was 188.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:46:05,329 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:46:05,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.94 ms. Allocated memory was 255.9 MB in the beginning and 333.4 MB in the end (delta: 77.6 MB). Free memory was 233.5 MB in the beginning and 294.9 MB in the end (delta: -61.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:46:05,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.94 ms. Allocated memory is still 333.4 MB. Free memory was 294.9 MB in the beginning and 293.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:46:05,330 INFO L168 Benchmark]: Boogie Preprocessor took 32.86 ms. Allocated memory is still 333.4 MB. Free memory was 293.5 MB in the beginning and 291.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:46:05,330 INFO L168 Benchmark]: RCFGBuilder took 397.35 ms. Allocated memory is still 333.4 MB. Free memory was 291.5 MB in the beginning and 267.0 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:46:05,330 INFO L168 Benchmark]: TraceAbstraction took 4301.09 ms. Allocated memory was 333.4 MB in the beginning and 400.6 MB in the end (delta: 67.1 MB). Free memory was 267.0 MB in the beginning and 190.8 MB in the end (delta: 76.2 MB). Peak memory consumption was 145.6 MB. Max. memory is 16.0 GB. [2021-03-26 10:46:05,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 603.94 ms. Allocated memory was 255.9 MB in the beginning and 333.4 MB in the end (delta: 77.6 MB). Free memory was 233.5 MB in the beginning and 294.9 MB in the end (delta: -61.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 66.94 ms. Allocated memory is still 333.4 MB. Free memory was 294.9 MB in the beginning and 293.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.86 ms. Allocated memory is still 333.4 MB. Free memory was 293.5 MB in the beginning and 291.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 397.35 ms. Allocated memory is still 333.4 MB. Free memory was 291.5 MB in the beginning and 267.0 MB in the end (delta: 24.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4301.09 ms. Allocated memory was 333.4 MB in the beginning and 400.6 MB in the end (delta: 67.1 MB). Free memory was 267.0 MB in the beginning and 190.8 MB in the end (delta: 76.2 MB). Peak memory consumption was 145.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1492.7ms, 85 PlacesBefore, 40 PlacesAfterwards, 73 TransitionsBefore, 27 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 4 FixpointIterations, 17 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 46 TotalNumberOfCompositions, 1938 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1133, positive: 1081, positive conditional: 1081, positive unconditional: 0, negative: 52, negative conditional: 52, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1133, positive: 1081, positive conditional: 0, positive unconditional: 1081, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1133, positive: 1081, positive conditional: 0, positive unconditional: 1081, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 934, positive: 898, positive conditional: 0, positive unconditional: 898, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 934, positive: 887, positive conditional: 0, positive unconditional: 887, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 179, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1133, positive: 183, positive conditional: 0, positive unconditional: 183, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 934, unknown conditional: 0, unknown unconditional: 934] , Statistics on independence cache: Total cache size (in pairs): 934, Positive cache size: 898, Positive conditional cache size: 0, Positive unconditional cache size: 898, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 604.4ms, 39 PlacesBefore, 35 PlacesAfterwards, 31 TransitionsBefore, 27 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 480 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 288, positive: 257, positive conditional: 257, positive unconditional: 0, negative: 31, negative conditional: 31, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 288, positive: 257, positive conditional: 0, positive unconditional: 257, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 288, positive: 257, positive conditional: 0, positive unconditional: 257, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 85, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 85, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 85, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 288, positive: 182, positive conditional: 0, positive unconditional: 182, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 85, unknown conditional: 0, unknown unconditional: 85] , Statistics on independence cache: Total cache size (in pairs): 1019, Positive cache size: 973, Positive conditional cache size: 0, Positive unconditional cache size: 973, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 526.2ms, 37 PlacesBefore, 36 PlacesAfterwards, 27 TransitionsBefore, 26 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 316 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 154, positive: 132, positive conditional: 132, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 154, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 154, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 154, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1020, Positive cache size: 974, Positive conditional cache size: 0, Positive unconditional cache size: 974, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2ms, 41 PlacesBefore, 41 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 208 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 80, positive: 69, positive conditional: 69, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 80, positive: 69, positive conditional: 5, positive unconditional: 64, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 69, positive conditional: 5, positive unconditional: 64, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 1, 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: 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: 80, positive: 64, positive conditional: 4, positive unconditional: 60, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 5, unknown conditional: 1, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 1025, Positive cache size: 979, Positive conditional cache size: 1, Positive unconditional cache size: 978, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0ms, 45 PlacesBefore, 44 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 128 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 68, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 68, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 68, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 68, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 1031, Positive cache size: 985, Positive conditional cache size: 1, Positive unconditional cache size: 984, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.5ms, 38 PlacesBefore, 37 PlacesAfterwards, 25 TransitionsBefore, 24 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 225 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 102, positive: 86, positive conditional: 86, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 102, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 102, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 5, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 102, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 1036, Positive cache size: 988, Positive conditional cache size: 1, Positive unconditional cache size: 987, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4ms, 40 PlacesBefore, 40 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 95 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 36, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 36, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 36, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1036, Positive cache size: 988, Positive conditional cache size: 1, Positive unconditional cache size: 987, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.5ms, 40 PlacesBefore, 37 PlacesAfterwards, 21 TransitionsBefore, 18 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 73 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 1042, Positive cache size: 993, Positive conditional cache size: 1, Positive unconditional cache size: 992, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 29 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1042, Positive cache size: 993, Positive conditional cache size: 1, Positive unconditional cache size: 992, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4184.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 405.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1583.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 42 SDtfs, 24 SDslu, 16 SDs, 0 SdLazy, 50 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=3, InterpolantAutomatonStates: 30, 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: 30.5ms SsaConstructionTime, 182.2ms SatisfiabilityAnalysisTime, 445.7ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 654 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...