./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:37:36,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:37:36,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:37:36,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:37:36,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:37:36,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:37:36,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:37:36,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:37:36,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:37:36,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:37:36,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:37:36,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:37:36,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:37:36,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:37:36,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:37:36,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:37:36,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:37:36,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:37:36,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:37:36,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:37:36,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:37:36,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:37:36,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:37:36,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:37:36,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:37:36,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:37:36,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:37:36,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:37:36,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:37:36,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:37:36,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:37:36,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:37:36,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:37:36,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:37:36,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:37:36,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:37:36,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:37:36,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:37:36,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:37:36,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:37:36,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:37:36,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:37:36,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:37:36,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:37:36,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:37:36,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:37:36,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:37:36,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:37:36,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:37:36,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:37:36,468 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:37:36,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:37:36,468 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:37:36,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:37:36,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:37:36,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:37:36,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:37:36,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:37:36,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:37:36,469 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:37:36,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:37:36,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:37:36,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:37:36,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:37:36,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:37:36,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:37:36,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:37:36,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:37:36,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:37:36,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:37:36,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:37:36,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:37:36,472 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:37:36,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:37:36,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:37:36,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:37:36,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2021-12-07 01:37:36,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:37:36,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:37:36,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:37:36,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:37:36,681 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:37:36,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2021-12-07 01:37:36,731 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/data/7b620079a/56c2a39e53864a5c87e0a72d6b30b058/FLAG8938b9623 [2021-12-07 01:37:37,243 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:37:37,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2021-12-07 01:37:37,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/data/7b620079a/56c2a39e53864a5c87e0a72d6b30b058/FLAG8938b9623 [2021-12-07 01:37:37,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/data/7b620079a/56c2a39e53864a5c87e0a72d6b30b058 [2021-12-07 01:37:37,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:37:37,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:37:37,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:37:37,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:37:37,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:37:37,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40657b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37, skipping insertion in model container [2021-12-07 01:37:37,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:37:37,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:37:37,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2021-12-07 01:37:37,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:37:37,860 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:37:37,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2021-12-07 01:37:37,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:37:37,891 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:37:37,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37 WrapperNode [2021-12-07 01:37:37,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:37:37,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:37:37,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:37:37,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:37:37,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,926 INFO L137 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2021-12-07 01:37:37,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:37:37,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:37:37,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:37:37,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:37:37,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:37:37,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:37:37,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:37:37,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:37:37,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (1/1) ... [2021-12-07 01:37:37,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:37:37,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:37:37,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:37:37,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:37:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:37:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-07 01:37:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-07 01:37:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-07 01:37:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-07 01:37:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-07 01:37:38,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-07 01:37:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-12-07 01:37:38,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-12-07 01:37:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:37:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-12-07 01:37:38,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-12-07 01:37:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:37:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:37:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-07 01:37:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-07 01:37:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:37:38,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:37:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:37:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:37:38,005 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 01:37:38,084 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:37:38,086 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:37:38,295 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:37:38,348 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:37:38,348 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 01:37:38,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:38 BoogieIcfgContainer [2021-12-07 01:37:38,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:37:38,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:37:38,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:37:38,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:37:38,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:37:37" (1/3) ... [2021-12-07 01:37:38,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3528df9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:37:38, skipping insertion in model container [2021-12-07 01:37:38,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:37" (2/3) ... [2021-12-07 01:37:38,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3528df9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:37:38, skipping insertion in model container [2021-12-07 01:37:38,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:38" (3/3) ... [2021-12-07 01:37:38,357 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2021-12-07 01:37:38,361 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 01:37:38,361 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:37:38,361 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:37:38,361 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 01:37:38,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,400 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,400 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,400 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,403 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,403 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,403 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,403 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,404 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,404 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,404 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,404 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,404 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,404 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,404 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,404 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,405 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,405 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,405 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,405 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,405 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,405 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,405 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,405 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,406 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,406 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,406 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,406 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,408 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,408 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,408 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,408 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,409 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,410 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,410 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,410 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,410 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,410 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,411 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,411 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,412 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,412 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,412 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,412 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,413 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,413 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,413 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,413 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 01:37:38,416 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-12-07 01:37:38,452 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:37:38,457 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:37:38,457 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-07 01:37:38,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 165 transitions, 370 flow [2021-12-07 01:37:38,521 INFO L129 PetriNetUnfolder]: 2/160 cut-off events. [2021-12-07 01:37:38,521 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-07 01:37:38,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 160 events. 2/160 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2021-12-07 01:37:38,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 165 transitions, 370 flow [2021-12-07 01:37:38,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 145 transitions, 320 flow [2021-12-07 01:37:38,556 INFO L129 PetriNetUnfolder]: 2/144 cut-off events. [2021-12-07 01:37:38,556 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-07 01:37:38,556 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:37:38,557 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:37:38,557 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:37:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:38,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1882316905, now seen corresponding path program 1 times [2021-12-07 01:37:38,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:38,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359384213] [2021-12-07 01:37:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:38,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:37:39,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:37:39,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359384213] [2021-12-07 01:37:39,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359384213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:37:39,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:37:39,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 01:37:39,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238219740] [2021-12-07 01:37:39,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:37:39,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:37:39,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:37:39,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:37:39,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:37:39,293 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:37:39,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 145 transitions, 320 flow. Second operand has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:39,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:37:39,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:37:39,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:37:43,815 INFO L129 PetriNetUnfolder]: 28398/43787 cut-off events. [2021-12-07 01:37:43,815 INFO L130 PetriNetUnfolder]: For 7195/7249 co-relation queries the response was YES. [2021-12-07 01:37:43,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86820 conditions, 43787 events. 28398/43787 cut-off events. For 7195/7249 co-relation queries the response was YES. Maximal size of possible extension queue 1725. Compared 330731 event pairs, 16376 based on Foata normal form. 4/42714 useless extension candidates. Maximal degree in co-relation 68872. Up to 12802 conditions per place. [2021-12-07 01:37:44,135 INFO L132 encePairwiseOnDemand]: 141/165 looper letters, 122 selfloop transitions, 27 changer transitions 26/267 dead transitions. [2021-12-07 01:37:44,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 267 transitions, 1004 flow [2021-12-07 01:37:44,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 01:37:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-07 01:37:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1957 transitions. [2021-12-07 01:37:44,153 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7412878787878788 [2021-12-07 01:37:44,153 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1957 transitions. [2021-12-07 01:37:44,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1957 transitions. [2021-12-07 01:37:44,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:37:44,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1957 transitions. [2021-12-07 01:37:44,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.3125) internal successors, (1957), 16 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:44,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:44,181 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:44,183 INFO L186 Difference]: Start difference. First operand has 159 places, 145 transitions, 320 flow. Second operand 16 states and 1957 transitions. [2021-12-07 01:37:44,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 267 transitions, 1004 flow [2021-12-07 01:37:44,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 267 transitions, 924 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-12-07 01:37:44,284 INFO L242 Difference]: Finished difference. Result has 174 places, 162 transitions, 479 flow [2021-12-07 01:37:44,286 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=479, PETRI_PLACES=174, PETRI_TRANSITIONS=162} [2021-12-07 01:37:44,289 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 15 predicate places. [2021-12-07 01:37:44,289 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 162 transitions, 479 flow [2021-12-07 01:37:44,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:44,290 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:37:44,291 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:37:44,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:37:44,291 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:37:44,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:44,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1644980583, now seen corresponding path program 2 times [2021-12-07 01:37:44,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:44,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660712384] [2021-12-07 01:37:44,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:44,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:37:44,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:37:44,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660712384] [2021-12-07 01:37:44,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660712384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:37:44,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:37:44,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 01:37:44,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190954117] [2021-12-07 01:37:44,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:37:44,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:37:44,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:37:44,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:37:44,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:37:44,670 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:37:44,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 162 transitions, 479 flow. Second operand has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:44,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:37:44,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:37:44,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:37:48,774 INFO L129 PetriNetUnfolder]: 25385/42661 cut-off events. [2021-12-07 01:37:48,774 INFO L130 PetriNetUnfolder]: For 34339/34339 co-relation queries the response was YES. [2021-12-07 01:37:48,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108685 conditions, 42661 events. 25385/42661 cut-off events. For 34339/34339 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 370827 event pairs, 6884 based on Foata normal form. 1/42097 useless extension candidates. Maximal degree in co-relation 108666. Up to 22556 conditions per place. [2021-12-07 01:37:49,043 INFO L132 encePairwiseOnDemand]: 146/165 looper letters, 82 selfloop transitions, 29 changer transitions 47/250 dead transitions. [2021-12-07 01:37:49,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 250 transitions, 1152 flow [2021-12-07 01:37:49,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:37:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-07 01:37:49,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1472 transitions. [2021-12-07 01:37:49,048 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7434343434343434 [2021-12-07 01:37:49,048 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1472 transitions. [2021-12-07 01:37:49,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1472 transitions. [2021-12-07 01:37:49,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:37:49,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1472 transitions. [2021-12-07 01:37:49,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.66666666666667) internal successors, (1472), 12 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:49,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:49,057 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:49,057 INFO L186 Difference]: Start difference. First operand has 174 places, 162 transitions, 479 flow. Second operand 12 states and 1472 transitions. [2021-12-07 01:37:49,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 250 transitions, 1152 flow [2021-12-07 01:37:49,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 250 transitions, 1109 flow, removed 10 selfloop flow, removed 8 redundant places. [2021-12-07 01:37:49,104 INFO L242 Difference]: Finished difference. Result has 175 places, 174 transitions, 627 flow [2021-12-07 01:37:49,104 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=627, PETRI_PLACES=175, PETRI_TRANSITIONS=174} [2021-12-07 01:37:49,105 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 16 predicate places. [2021-12-07 01:37:49,105 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 174 transitions, 627 flow [2021-12-07 01:37:49,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:49,106 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:37:49,107 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:37:49,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:37:49,107 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:37:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1318499785, now seen corresponding path program 3 times [2021-12-07 01:37:49,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:49,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775999308] [2021-12-07 01:37:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:49,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:49,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:37:49,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:37:49,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775999308] [2021-12-07 01:37:49,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775999308] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:37:49,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:37:49,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:37:49,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720161236] [2021-12-07 01:37:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:37:49,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:37:49,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:37:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:37:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:37:49,254 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:37:49,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 174 transitions, 627 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:49,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:37:49,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:37:49,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:37:51,352 INFO L129 PetriNetUnfolder]: 14040/22867 cut-off events. [2021-12-07 01:37:51,352 INFO L130 PetriNetUnfolder]: For 35779/41832 co-relation queries the response was YES. [2021-12-07 01:37:51,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66682 conditions, 22867 events. 14040/22867 cut-off events. For 35779/41832 co-relation queries the response was YES. Maximal size of possible extension queue 1224. Compared 178398 event pairs, 1545 based on Foata normal form. 201/21583 useless extension candidates. Maximal degree in co-relation 66658. Up to 5638 conditions per place. [2021-12-07 01:37:51,577 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 95 selfloop transitions, 58 changer transitions 1/281 dead transitions. [2021-12-07 01:37:51,577 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 281 transitions, 1286 flow [2021-12-07 01:37:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:37:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-07 01:37:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1347 transitions. [2021-12-07 01:37:51,581 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8163636363636364 [2021-12-07 01:37:51,581 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1347 transitions. [2021-12-07 01:37:51,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1347 transitions. [2021-12-07 01:37:51,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:37:51,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1347 transitions. [2021-12-07 01:37:51,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.7) internal successors, (1347), 10 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:51,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:51,588 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:51,588 INFO L186 Difference]: Start difference. First operand has 175 places, 174 transitions, 627 flow. Second operand 10 states and 1347 transitions. [2021-12-07 01:37:51,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 281 transitions, 1286 flow [2021-12-07 01:37:51,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 281 transitions, 1225 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-12-07 01:37:51,643 INFO L242 Difference]: Finished difference. Result has 172 places, 218 transitions, 831 flow [2021-12-07 01:37:51,644 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=831, PETRI_PLACES=172, PETRI_TRANSITIONS=218} [2021-12-07 01:37:51,644 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 13 predicate places. [2021-12-07 01:37:51,644 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 218 transitions, 831 flow [2021-12-07 01:37:51,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:51,645 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:37:51,645 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:37:51,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:37:51,646 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:37:51,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:51,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1113799159, now seen corresponding path program 4 times [2021-12-07 01:37:51,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:51,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227127033] [2021-12-07 01:37:51,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:51,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:37:51,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:37:51,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227127033] [2021-12-07 01:37:51,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227127033] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:37:51,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:37:51,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:37:51,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83803971] [2021-12-07 01:37:51,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:37:51,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:37:51,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:37:51,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:37:51,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:37:51,735 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:37:51,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 218 transitions, 831 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:51,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:37:51,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:37:51,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:37:55,369 INFO L129 PetriNetUnfolder]: 20024/38070 cut-off events. [2021-12-07 01:37:55,370 INFO L130 PetriNetUnfolder]: For 42114/46734 co-relation queries the response was YES. [2021-12-07 01:37:55,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109720 conditions, 38070 events. 20024/38070 cut-off events. For 42114/46734 co-relation queries the response was YES. Maximal size of possible extension queue 2125. Compared 381409 event pairs, 4107 based on Foata normal form. 1352/37946 useless extension candidates. Maximal degree in co-relation 51763. Up to 8245 conditions per place. [2021-12-07 01:37:55,690 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 128 selfloop transitions, 84 changer transitions 0/339 dead transitions. [2021-12-07 01:37:55,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 339 transitions, 1813 flow [2021-12-07 01:37:55,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:37:55,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-07 01:37:55,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 946 transitions. [2021-12-07 01:37:55,693 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.819047619047619 [2021-12-07 01:37:55,693 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 946 transitions. [2021-12-07 01:37:55,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 946 transitions. [2021-12-07 01:37:55,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:37:55,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 946 transitions. [2021-12-07 01:37:55,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:55,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:55,698 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:55,698 INFO L186 Difference]: Start difference. First operand has 172 places, 218 transitions, 831 flow. Second operand 7 states and 946 transitions. [2021-12-07 01:37:55,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 339 transitions, 1813 flow [2021-12-07 01:37:55,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 339 transitions, 1689 flow, removed 57 selfloop flow, removed 3 redundant places. [2021-12-07 01:37:55,735 INFO L242 Difference]: Finished difference. Result has 177 places, 283 transitions, 1388 flow [2021-12-07 01:37:55,735 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1388, PETRI_PLACES=177, PETRI_TRANSITIONS=283} [2021-12-07 01:37:55,736 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 18 predicate places. [2021-12-07 01:37:55,736 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 283 transitions, 1388 flow [2021-12-07 01:37:55,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:55,737 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:37:55,737 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:37:55,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 01:37:55,737 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:37:55,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:37:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash -904049683, now seen corresponding path program 5 times [2021-12-07 01:37:55,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:37:55,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83916567] [2021-12-07 01:37:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:37:55,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:37:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:37:55,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:37:55,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:37:55,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83916567] [2021-12-07 01:37:55,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83916567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:37:55,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:37:55,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:37:55,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359017253] [2021-12-07 01:37:55,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:37:55,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:37:55,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:37:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:37:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:37:55,869 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:37:55,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 283 transitions, 1388 flow. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:37:55,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:37:55,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:37:55,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:37:59,544 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([491] L109-->L112: Formula: (= v_~b~0_5 (ite (= (ite (or (not (= (mod v_~b~0_6 256) 0)) (= v_~x~0_5 1)) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_6, ~x~0=v_~x~0_5} OutVars{~b~0=v_~b~0_5, ~x~0=v_~x~0_5} AuxVars[] AssignedVars[~b~0][199], [83#L160-4true, 44#L93true, 73#L134true, 145#L112true, 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), 101#L74true, Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (* 256 (div ~b~0 256)) ~b~0), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 186#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 78#L55true, Black: 226#(and (<= ~m1~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 187#(and (<= ~x~0 0) (<= ~m2~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 188#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0)), 258#(<= (+ ~s~0 4) ~t~0)]) [2021-12-07 01:37:59,544 INFO L384 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2021-12-07 01:37:59,544 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2021-12-07 01:37:59,544 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2021-12-07 01:37:59,544 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2021-12-07 01:38:00,926 INFO L129 PetriNetUnfolder]: 25513/47183 cut-off events. [2021-12-07 01:38:00,926 INFO L130 PetriNetUnfolder]: For 89096/98166 co-relation queries the response was YES. [2021-12-07 01:38:01,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158297 conditions, 47183 events. 25513/47183 cut-off events. For 89096/98166 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 473679 event pairs, 4721 based on Foata normal form. 1931/46703 useless extension candidates. Maximal degree in co-relation 57954. Up to 11796 conditions per place. [2021-12-07 01:38:01,451 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 129 selfloop transitions, 166 changer transitions 0/422 dead transitions. [2021-12-07 01:38:01,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 422 transitions, 2718 flow [2021-12-07 01:38:01,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:38:01,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-07 01:38:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1094 transitions. [2021-12-07 01:38:01,454 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8287878787878787 [2021-12-07 01:38:01,455 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1094 transitions. [2021-12-07 01:38:01,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1094 transitions. [2021-12-07 01:38:01,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:01,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1094 transitions. [2021-12-07 01:38:01,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.75) internal successors, (1094), 8 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:01,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:01,460 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:01,460 INFO L186 Difference]: Start difference. First operand has 177 places, 283 transitions, 1388 flow. Second operand 8 states and 1094 transitions. [2021-12-07 01:38:01,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 422 transitions, 2718 flow [2021-12-07 01:38:01,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 422 transitions, 2694 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-12-07 01:38:01,571 INFO L242 Difference]: Finished difference. Result has 184 places, 360 transitions, 2343 flow [2021-12-07 01:38:01,572 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2343, PETRI_PLACES=184, PETRI_TRANSITIONS=360} [2021-12-07 01:38:01,572 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 25 predicate places. [2021-12-07 01:38:01,572 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 360 transitions, 2343 flow [2021-12-07 01:38:01,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:01,573 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:01,573 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:01,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:38:01,573 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:01,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash -147796337, now seen corresponding path program 6 times [2021-12-07 01:38:01,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:01,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580226919] [2021-12-07 01:38:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:01,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:01,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:01,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580226919] [2021-12-07 01:38:01,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580226919] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:01,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:01,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:38:01,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638740467] [2021-12-07 01:38:01,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:01,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:38:01,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:01,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:38:01,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:38:01,671 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:38:01,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 360 transitions, 2343 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:01,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:01,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:38:01,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:05,188 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([486] L93-->L96: Formula: (= v_~s~0_79 (+ v_~s~0_80 1)) InVars {~s~0=v_~s~0_80} OutVars{thread3Thread1of1ForFork4_#t~post6#1=|v_thread3Thread1of1ForFork4_#t~post6#1_1|, ~s~0=v_~s~0_79} AuxVars[] AssignedVars[thread3Thread1of1ForFork4_#t~post6#1, ~s~0][197], [42#L115true, 24#L52true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 57#L96true, Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (* 256 (div ~b~0 256)) ~b~0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (<= ~x~0 0) (<= ~m2~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 226#(and (<= ~m1~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 188#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0)), 285#(<= (+ ~s~0 1) ~t~0), 270#(<= ~s~0 ~t~0)]) [2021-12-07 01:38:05,189 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2021-12-07 01:38:05,189 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2021-12-07 01:38:05,189 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2021-12-07 01:38:05,189 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2021-12-07 01:38:05,189 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 24#L52true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (* 256 (div ~b~0 256)) ~b~0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 21#L71true, Black: 187#(and (<= ~x~0 0) (<= ~m2~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 226#(and (<= ~m1~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 188#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2021-12-07 01:38:05,189 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2021-12-07 01:38:05,189 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2021-12-07 01:38:05,189 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2021-12-07 01:38:05,189 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2021-12-07 01:38:05,190 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([474] L55-->L58: Formula: (= v_~s~0_59 (+ v_~s~0_60 1)) InVars {~s~0=v_~s~0_60} OutVars{thread1Thread1of1ForFork0_#t~post2#1=|v_thread1Thread1of1ForFork0_#t~post2#1_1|, ~s~0=v_~s~0_59} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post2#1, ~s~0][241], [42#L115true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (* 256 (div ~b~0 256)) ~b~0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (<= ~x~0 0) (<= ~m2~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 226#(and (<= ~m1~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 188#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0)), 127#L58true, 270#(<= ~s~0 ~t~0), 285#(<= (+ ~s~0 1) ~t~0)]) [2021-12-07 01:38:05,190 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,190 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,190 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,190 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,441 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (* 256 (div ~b~0 256)) ~b~0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), 78#L55true, Black: 270#(<= ~s~0 ~t~0), Black: 186#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0) (<= ~t~0 ~s~0)), Black: 226#(and (<= ~m1~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 187#(and (<= ~x~0 0) (<= ~m2~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), 21#L71true, Black: 188#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2021-12-07 01:38:05,442 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,442 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,442 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,442 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,461 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 83#L160-4true, 44#L93true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (* 256 (div ~b~0 256)) ~b~0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 78#L55true, 21#L71true, Black: 187#(and (<= ~x~0 0) (<= ~m2~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 226#(and (<= ~m1~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 188#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2021-12-07 01:38:05,461 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,461 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,461 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,461 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,461 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,461 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([474] L55-->L58: Formula: (= v_~s~0_59 (+ v_~s~0_60 1)) InVars {~s~0=v_~s~0_60} OutVars{thread1Thread1of1ForFork0_#t~post2#1=|v_thread1Thread1of1ForFork0_#t~post2#1_1|, ~s~0=v_~s~0_59} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post2#1, ~s~0][241], [42#L115true, 83#L160-4true, 44#L93true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (* 256 (div ~b~0 256)) ~b~0), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 186#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (<= ~x~0 0) (<= ~m2~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 226#(and (<= ~m1~0 ~s~0) (= (* 256 (div ~b~0 256)) ~b~0)), Black: 188#(and (<= ~x~0 0) (= (* 256 (div ~b~0 256)) ~b~0)), 127#L58true, 285#(<= (+ ~s~0 1) ~t~0), 270#(<= ~s~0 ~t~0)]) [2021-12-07 01:38:05,461 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,461 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,462 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,462 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:05,462 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2021-12-07 01:38:07,031 INFO L129 PetriNetUnfolder]: 26530/47127 cut-off events. [2021-12-07 01:38:07,032 INFO L130 PetriNetUnfolder]: For 149341/160102 co-relation queries the response was YES. [2021-12-07 01:38:07,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185117 conditions, 47127 events. 26530/47127 cut-off events. For 149341/160102 co-relation queries the response was YES. Maximal size of possible extension queue 2587. Compared 453882 event pairs, 3807 based on Foata normal form. 2373/47034 useless extension candidates. Maximal degree in co-relation 127011. Up to 12762 conditions per place. [2021-12-07 01:38:07,526 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 114 selfloop transitions, 218 changer transitions 2/461 dead transitions. [2021-12-07 01:38:07,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 461 transitions, 3576 flow [2021-12-07 01:38:07,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:38:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-07 01:38:07,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1230 transitions. [2021-12-07 01:38:07,529 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2021-12-07 01:38:07,530 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1230 transitions. [2021-12-07 01:38:07,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1230 transitions. [2021-12-07 01:38:07,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:07,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1230 transitions. [2021-12-07 01:38:07,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.66666666666666) internal successors, (1230), 9 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:07,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:07,535 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:07,535 INFO L186 Difference]: Start difference. First operand has 184 places, 360 transitions, 2343 flow. Second operand 9 states and 1230 transitions. [2021-12-07 01:38:07,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 461 transitions, 3576 flow [2021-12-07 01:38:08,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 461 transitions, 3524 flow, removed 24 selfloop flow, removed 2 redundant places. [2021-12-07 01:38:08,131 INFO L242 Difference]: Finished difference. Result has 192 places, 395 transitions, 3138 flow [2021-12-07 01:38:08,131 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2319, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3138, PETRI_PLACES=192, PETRI_TRANSITIONS=395} [2021-12-07 01:38:08,132 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 33 predicate places. [2021-12-07 01:38:08,132 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 395 transitions, 3138 flow [2021-12-07 01:38:08,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:08,133 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:08,133 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:08,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:38:08,134 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:08,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:08,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1325641699, now seen corresponding path program 7 times [2021-12-07 01:38:08,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:08,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511265614] [2021-12-07 01:38:08,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:08,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:08,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:08,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511265614] [2021-12-07 01:38:08,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511265614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:08,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:08,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:38:08,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558180644] [2021-12-07 01:38:08,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:08,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:38:08,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:38:08,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:38:08,224 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:38:08,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 395 transitions, 3138 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:08,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:08,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:38:08,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:13,964 INFO L129 PetriNetUnfolder]: 25014/47806 cut-off events. [2021-12-07 01:38:13,965 INFO L130 PetriNetUnfolder]: For 192179/199828 co-relation queries the response was YES. [2021-12-07 01:38:14,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200073 conditions, 47806 events. 25014/47806 cut-off events. For 192179/199828 co-relation queries the response was YES. Maximal size of possible extension queue 2716. Compared 498570 event pairs, 5909 based on Foata normal form. 1999/47720 useless extension candidates. Maximal degree in co-relation 105004. Up to 12767 conditions per place. [2021-12-07 01:38:14,490 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 209 selfloop transitions, 137 changer transitions 0/473 dead transitions. [2021-12-07 01:38:14,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 473 transitions, 4409 flow [2021-12-07 01:38:14,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:38:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-07 01:38:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 945 transitions. [2021-12-07 01:38:14,493 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-12-07 01:38:14,493 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 945 transitions. [2021-12-07 01:38:14,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 945 transitions. [2021-12-07 01:38:14,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:14,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 945 transitions. [2021-12-07 01:38:14,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:14,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:14,498 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:14,498 INFO L186 Difference]: Start difference. First operand has 192 places, 395 transitions, 3138 flow. Second operand 7 states and 945 transitions. [2021-12-07 01:38:14,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 473 transitions, 4409 flow [2021-12-07 01:38:15,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 473 transitions, 4378 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-12-07 01:38:15,379 INFO L242 Difference]: Finished difference. Result has 197 places, 420 transitions, 3801 flow [2021-12-07 01:38:15,380 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3111, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3801, PETRI_PLACES=197, PETRI_TRANSITIONS=420} [2021-12-07 01:38:15,380 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 38 predicate places. [2021-12-07 01:38:15,381 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 420 transitions, 3801 flow [2021-12-07 01:38:15,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:15,381 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:15,381 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:15,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:38:15,382 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1392558915, now seen corresponding path program 8 times [2021-12-07 01:38:15,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:15,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696926436] [2021-12-07 01:38:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:15,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:15,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:15,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696926436] [2021-12-07 01:38:15,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696926436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:15,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:15,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:38:15,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798679823] [2021-12-07 01:38:15,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:15,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:38:15,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:15,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:38:15,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:38:15,468 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:38:15,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 420 transitions, 3801 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:15,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:15,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:38:15,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:21,329 INFO L129 PetriNetUnfolder]: 23131/44122 cut-off events. [2021-12-07 01:38:21,330 INFO L130 PetriNetUnfolder]: For 228108/240901 co-relation queries the response was YES. [2021-12-07 01:38:21,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200748 conditions, 44122 events. 23131/44122 cut-off events. For 228108/240901 co-relation queries the response was YES. Maximal size of possible extension queue 2695. Compared 459176 event pairs, 5400 based on Foata normal form. 3096/45038 useless extension candidates. Maximal degree in co-relation 131312. Up to 12823 conditions per place. [2021-12-07 01:38:21,853 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 207 selfloop transitions, 176 changer transitions 1/507 dead transitions. [2021-12-07 01:38:21,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 507 transitions, 5416 flow [2021-12-07 01:38:21,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:38:21,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-07 01:38:21,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2021-12-07 01:38:21,856 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8199134199134199 [2021-12-07 01:38:21,856 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2021-12-07 01:38:21,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2021-12-07 01:38:21,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:21,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2021-12-07 01:38:21,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:21,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:21,860 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:21,860 INFO L186 Difference]: Start difference. First operand has 197 places, 420 transitions, 3801 flow. Second operand 7 states and 947 transitions. [2021-12-07 01:38:21,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 507 transitions, 5416 flow [2021-12-07 01:38:22,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 507 transitions, 5183 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-12-07 01:38:22,302 INFO L242 Difference]: Finished difference. Result has 200 places, 456 transitions, 4660 flow [2021-12-07 01:38:22,302 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3561, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4660, PETRI_PLACES=200, PETRI_TRANSITIONS=456} [2021-12-07 01:38:22,303 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 41 predicate places. [2021-12-07 01:38:22,303 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 456 transitions, 4660 flow [2021-12-07 01:38:22,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:22,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:22,303 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:22,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:38:22,304 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:22,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:22,304 INFO L85 PathProgramCache]: Analyzing trace with hash 62190035, now seen corresponding path program 9 times [2021-12-07 01:38:22,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:22,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968804801] [2021-12-07 01:38:22,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:22,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:22,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:22,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:22,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968804801] [2021-12-07 01:38:22,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968804801] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:22,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:22,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:38:22,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673192556] [2021-12-07 01:38:22,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:22,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:38:22,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:22,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:38:22,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:38:22,387 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:38:22,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 456 transitions, 4660 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:22,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:22,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:38:22,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:27,799 INFO L129 PetriNetUnfolder]: 21462/42203 cut-off events. [2021-12-07 01:38:27,799 INFO L130 PetriNetUnfolder]: For 257500/266501 co-relation queries the response was YES. [2021-12-07 01:38:28,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196130 conditions, 42203 events. 21462/42203 cut-off events. For 257500/266501 co-relation queries the response was YES. Maximal size of possible extension queue 2633. Compared 448894 event pairs, 5058 based on Foata normal form. 2478/42458 useless extension candidates. Maximal degree in co-relation 59661. Up to 12638 conditions per place. [2021-12-07 01:38:28,296 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 208 selfloop transitions, 207 changer transitions 3/539 dead transitions. [2021-12-07 01:38:28,296 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 539 transitions, 6321 flow [2021-12-07 01:38:28,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:38:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-07 01:38:28,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2021-12-07 01:38:28,299 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8199134199134199 [2021-12-07 01:38:28,299 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2021-12-07 01:38:28,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2021-12-07 01:38:28,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:28,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2021-12-07 01:38:28,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:28,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:28,304 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:28,304 INFO L186 Difference]: Start difference. First operand has 200 places, 456 transitions, 4660 flow. Second operand 7 states and 947 transitions. [2021-12-07 01:38:28,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 539 transitions, 6321 flow [2021-12-07 01:38:28,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 539 transitions, 6098 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-07 01:38:28,682 INFO L242 Difference]: Finished difference. Result has 204 places, 487 transitions, 5553 flow [2021-12-07 01:38:28,683 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4425, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5553, PETRI_PLACES=204, PETRI_TRANSITIONS=487} [2021-12-07 01:38:28,683 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 45 predicate places. [2021-12-07 01:38:28,683 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 487 transitions, 5553 flow [2021-12-07 01:38:28,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:28,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:28,684 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:28,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 01:38:28,684 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:28,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1785034139, now seen corresponding path program 10 times [2021-12-07 01:38:28,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:28,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298636776] [2021-12-07 01:38:28,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:28,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:28,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:28,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298636776] [2021-12-07 01:38:28,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298636776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:28,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:28,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:38:28,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120474178] [2021-12-07 01:38:28,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:28,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:38:28,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:28,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:38:28,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:38:28,785 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:38:28,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 487 transitions, 5553 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:28,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:28,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:38:28,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:32,907 INFO L129 PetriNetUnfolder]: 14692/30055 cut-off events. [2021-12-07 01:38:32,907 INFO L130 PetriNetUnfolder]: For 215793/224682 co-relation queries the response was YES. [2021-12-07 01:38:33,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146057 conditions, 30055 events. 14692/30055 cut-off events. For 215793/224682 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 310966 event pairs, 3012 based on Foata normal form. 2585/31090 useless extension candidates. Maximal degree in co-relation 102978. Up to 9801 conditions per place. [2021-12-07 01:38:33,411 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 200 selfloop transitions, 250 changer transitions 0/561 dead transitions. [2021-12-07 01:38:33,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 561 transitions, 7428 flow [2021-12-07 01:38:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:38:33,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-07 01:38:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 944 transitions. [2021-12-07 01:38:33,414 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8173160173160173 [2021-12-07 01:38:33,414 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 944 transitions. [2021-12-07 01:38:33,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 944 transitions. [2021-12-07 01:38:33,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:33,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 944 transitions. [2021-12-07 01:38:33,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 134.85714285714286) internal successors, (944), 7 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:33,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:33,418 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:33,418 INFO L186 Difference]: Start difference. First operand has 204 places, 487 transitions, 5553 flow. Second operand 7 states and 944 transitions. [2021-12-07 01:38:33,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 561 transitions, 7428 flow [2021-12-07 01:38:33,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 561 transitions, 7146 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-12-07 01:38:33,623 INFO L242 Difference]: Finished difference. Result has 205 places, 521 transitions, 6754 flow [2021-12-07 01:38:33,623 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4829, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6754, PETRI_PLACES=205, PETRI_TRANSITIONS=521} [2021-12-07 01:38:33,623 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 46 predicate places. [2021-12-07 01:38:33,624 INFO L470 AbstractCegarLoop]: Abstraction has has 205 places, 521 transitions, 6754 flow [2021-12-07 01:38:33,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:33,624 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:33,624 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:33,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 01:38:33,625 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:33,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:33,625 INFO L85 PathProgramCache]: Analyzing trace with hash 798052969, now seen corresponding path program 11 times [2021-12-07 01:38:33,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:33,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180117179] [2021-12-07 01:38:33,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:33,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:33,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:33,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180117179] [2021-12-07 01:38:33,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180117179] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:33,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:33,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:38:33,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641135526] [2021-12-07 01:38:33,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:33,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:38:33,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:33,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:38:33,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:38:33,760 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:38:33,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 521 transitions, 6754 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:33,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:33,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:38:33,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:40,468 INFO L129 PetriNetUnfolder]: 26409/43516 cut-off events. [2021-12-07 01:38:40,468 INFO L130 PetriNetUnfolder]: For 355480/355480 co-relation queries the response was YES. [2021-12-07 01:38:40,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237788 conditions, 43516 events. 26409/43516 cut-off events. For 355480/355480 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 370246 event pairs, 3507 based on Foata normal form. 457/43172 useless extension candidates. Maximal degree in co-relation 82077. Up to 15759 conditions per place. [2021-12-07 01:38:40,950 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 192 selfloop transitions, 405 changer transitions 2/691 dead transitions. [2021-12-07 01:38:40,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 691 transitions, 9467 flow [2021-12-07 01:38:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:38:40,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-07 01:38:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1296 transitions. [2021-12-07 01:38:40,954 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7854545454545454 [2021-12-07 01:38:40,954 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1296 transitions. [2021-12-07 01:38:40,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1296 transitions. [2021-12-07 01:38:40,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:40,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1296 transitions. [2021-12-07 01:38:40,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.6) internal successors, (1296), 10 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:40,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:40,960 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:40,960 INFO L186 Difference]: Start difference. First operand has 205 places, 521 transitions, 6754 flow. Second operand 10 states and 1296 transitions. [2021-12-07 01:38:40,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 691 transitions, 9467 flow [2021-12-07 01:38:41,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 691 transitions, 9164 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-07 01:38:41,271 INFO L242 Difference]: Finished difference. Result has 211 places, 564 transitions, 8216 flow [2021-12-07 01:38:41,271 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=6490, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8216, PETRI_PLACES=211, PETRI_TRANSITIONS=564} [2021-12-07 01:38:41,272 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 52 predicate places. [2021-12-07 01:38:41,272 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 564 transitions, 8216 flow [2021-12-07 01:38:41,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:41,273 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:41,273 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:41,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 01:38:41,273 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:41,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1774997625, now seen corresponding path program 12 times [2021-12-07 01:38:41,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:41,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801738967] [2021-12-07 01:38:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:41,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:41,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:41,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801738967] [2021-12-07 01:38:41,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801738967] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:41,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:41,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:38:41,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797600343] [2021-12-07 01:38:41,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:41,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:38:41,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:41,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:38:41,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:38:41,353 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:38:41,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 564 transitions, 8216 flow. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:41,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:41,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:38:41,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:45,918 INFO L129 PetriNetUnfolder]: 14739/30508 cut-off events. [2021-12-07 01:38:45,918 INFO L130 PetriNetUnfolder]: For 295368/305240 co-relation queries the response was YES. [2021-12-07 01:38:46,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158288 conditions, 30508 events. 14739/30508 cut-off events. For 295368/305240 co-relation queries the response was YES. Maximal size of possible extension queue 1600. Compared 316854 event pairs, 2323 based on Foata normal form. 3181/32148 useless extension candidates. Maximal degree in co-relation 48060. Up to 7128 conditions per place. [2021-12-07 01:38:46,291 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 156 selfloop transitions, 392 changer transitions 1/660 dead transitions. [2021-12-07 01:38:46,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 660 transitions, 10290 flow [2021-12-07 01:38:46,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:38:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-07 01:38:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1092 transitions. [2021-12-07 01:38:46,293 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8272727272727273 [2021-12-07 01:38:46,294 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1092 transitions. [2021-12-07 01:38:46,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1092 transitions. [2021-12-07 01:38:46,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:46,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1092 transitions. [2021-12-07 01:38:46,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.5) internal successors, (1092), 8 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:46,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:46,298 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:46,298 INFO L186 Difference]: Start difference. First operand has 211 places, 564 transitions, 8216 flow. Second operand 8 states and 1092 transitions. [2021-12-07 01:38:46,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 660 transitions, 10290 flow [2021-12-07 01:38:46,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 660 transitions, 9823 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-12-07 01:38:46,515 INFO L242 Difference]: Finished difference. Result has 212 places, 594 transitions, 9281 flow [2021-12-07 01:38:46,516 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=7787, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9281, PETRI_PLACES=212, PETRI_TRANSITIONS=594} [2021-12-07 01:38:46,516 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 53 predicate places. [2021-12-07 01:38:46,516 INFO L470 AbstractCegarLoop]: Abstraction has has 212 places, 594 transitions, 9281 flow [2021-12-07 01:38:46,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:46,517 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:46,517 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:46,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 01:38:46,517 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:46,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1467063879, now seen corresponding path program 13 times [2021-12-07 01:38:46,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:46,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785612367] [2021-12-07 01:38:46,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:46,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:46,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:46,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:46,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785612367] [2021-12-07 01:38:46,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785612367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:46,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:46,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:38:46,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100161996] [2021-12-07 01:38:46,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:46,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:38:46,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:46,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:38:46,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:38:46,596 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:38:46,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 594 transitions, 9281 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:46,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:46,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:38:46,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:51,527 INFO L129 PetriNetUnfolder]: 15192/32090 cut-off events. [2021-12-07 01:38:51,527 INFO L130 PetriNetUnfolder]: For 349654/359721 co-relation queries the response was YES. [2021-12-07 01:38:51,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171671 conditions, 32090 events. 15192/32090 cut-off events. For 349654/359721 co-relation queries the response was YES. Maximal size of possible extension queue 1638. Compared 340933 event pairs, 2473 based on Foata normal form. 4015/34471 useless extension candidates. Maximal degree in co-relation 53300. Up to 6937 conditions per place. [2021-12-07 01:38:51,938 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 183 selfloop transitions, 472 changer transitions 1/767 dead transitions. [2021-12-07 01:38:51,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 767 transitions, 12842 flow [2021-12-07 01:38:51,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:38:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-07 01:38:51,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1368 transitions. [2021-12-07 01:38:51,940 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8290909090909091 [2021-12-07 01:38:51,940 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1368 transitions. [2021-12-07 01:38:51,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1368 transitions. [2021-12-07 01:38:51,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:51,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1368 transitions. [2021-12-07 01:38:51,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.8) internal successors, (1368), 10 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:51,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:51,944 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:51,944 INFO L186 Difference]: Start difference. First operand has 212 places, 594 transitions, 9281 flow. Second operand 10 states and 1368 transitions. [2021-12-07 01:38:51,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 767 transitions, 12842 flow [2021-12-07 01:38:52,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 767 transitions, 12000 flow, removed 14 selfloop flow, removed 7 redundant places. [2021-12-07 01:38:52,324 INFO L242 Difference]: Finished difference. Result has 216 places, 674 transitions, 11266 flow [2021-12-07 01:38:52,325 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=8596, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=392, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11266, PETRI_PLACES=216, PETRI_TRANSITIONS=674} [2021-12-07 01:38:52,325 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 57 predicate places. [2021-12-07 01:38:52,326 INFO L470 AbstractCegarLoop]: Abstraction has has 216 places, 674 transitions, 11266 flow [2021-12-07 01:38:52,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:52,326 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:52,326 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:52,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 01:38:52,326 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:52,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:52,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1784034567, now seen corresponding path program 14 times [2021-12-07 01:38:52,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:52,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289394783] [2021-12-07 01:38:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:52,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:52,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:52,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289394783] [2021-12-07 01:38:52,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289394783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:52,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:52,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:38:52,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150277859] [2021-12-07 01:38:52,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:52,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:38:52,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:52,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:38:52,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:38:52,413 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:38:52,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 674 transitions, 11266 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:52,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:52,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:38:52,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:38:57,690 INFO L129 PetriNetUnfolder]: 15433/31567 cut-off events. [2021-12-07 01:38:57,690 INFO L130 PetriNetUnfolder]: For 397133/410705 co-relation queries the response was YES. [2021-12-07 01:38:57,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174425 conditions, 31567 events. 15433/31567 cut-off events. For 397133/410705 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 326360 event pairs, 1926 based on Foata normal form. 4121/33961 useless extension candidates. Maximal degree in co-relation 89485. Up to 8019 conditions per place. [2021-12-07 01:38:58,109 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 113 selfloop transitions, 569 changer transitions 2/795 dead transitions. [2021-12-07 01:38:58,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 795 transitions, 14278 flow [2021-12-07 01:38:58,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:38:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-07 01:38:58,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1230 transitions. [2021-12-07 01:38:58,111 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2021-12-07 01:38:58,111 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1230 transitions. [2021-12-07 01:38:58,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1230 transitions. [2021-12-07 01:38:58,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:38:58,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1230 transitions. [2021-12-07 01:38:58,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.66666666666666) internal successors, (1230), 9 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:58,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:58,116 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:58,116 INFO L186 Difference]: Start difference. First operand has 216 places, 674 transitions, 11266 flow. Second operand 9 states and 1230 transitions. [2021-12-07 01:38:58,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 795 transitions, 14278 flow [2021-12-07 01:38:58,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 795 transitions, 13673 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-07 01:38:58,422 INFO L242 Difference]: Finished difference. Result has 220 places, 728 transitions, 13179 flow [2021-12-07 01:38:58,422 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=10716, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13179, PETRI_PLACES=220, PETRI_TRANSITIONS=728} [2021-12-07 01:38:58,423 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 61 predicate places. [2021-12-07 01:38:58,423 INFO L470 AbstractCegarLoop]: Abstraction has has 220 places, 728 transitions, 13179 flow [2021-12-07 01:38:58,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:58,423 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:38:58,423 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:38:58,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-07 01:38:58,423 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:38:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:38:58,424 INFO L85 PathProgramCache]: Analyzing trace with hash 477581227, now seen corresponding path program 15 times [2021-12-07 01:38:58,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:38:58,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334824670] [2021-12-07 01:38:58,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:38:58,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:38:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:38:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:38:58,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:38:58,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334824670] [2021-12-07 01:38:58,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334824670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:38:58,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:38:58,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:38:58,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621857057] [2021-12-07 01:38:58,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:38:58,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:38:58,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:38:58,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:38:58,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:38:58,569 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:38:58,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 728 transitions, 13179 flow. Second operand has 9 states, 9 states have (on average 116.44444444444444) internal successors, (1048), 9 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:38:58,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:38:58,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:38:58,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:39:07,633 INFO L129 PetriNetUnfolder]: 27041/47589 cut-off events. [2021-12-07 01:39:07,633 INFO L130 PetriNetUnfolder]: For 555511/555511 co-relation queries the response was YES. [2021-12-07 01:39:07,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 286772 conditions, 47589 events. 27041/47589 cut-off events. For 555511/555511 co-relation queries the response was YES. Maximal size of possible extension queue 1866. Compared 444484 event pairs, 4711 based on Foata normal form. 351/47171 useless extension candidates. Maximal degree in co-relation 95327. Up to 14501 conditions per place. [2021-12-07 01:39:08,220 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 227 selfloop transitions, 554 changer transitions 3/876 dead transitions. [2021-12-07 01:39:08,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 876 transitions, 16140 flow [2021-12-07 01:39:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:39:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-07 01:39:08,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1164 transitions. [2021-12-07 01:39:08,222 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7838383838383839 [2021-12-07 01:39:08,222 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1164 transitions. [2021-12-07 01:39:08,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1164 transitions. [2021-12-07 01:39:08,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:39:08,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1164 transitions. [2021-12-07 01:39:08,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.33333333333334) internal successors, (1164), 9 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:08,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:08,225 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:08,225 INFO L186 Difference]: Start difference. First operand has 220 places, 728 transitions, 13179 flow. Second operand 9 states and 1164 transitions. [2021-12-07 01:39:08,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 876 transitions, 16140 flow [2021-12-07 01:39:09,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 876 transitions, 15354 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-12-07 01:39:09,238 INFO L242 Difference]: Finished difference. Result has 223 places, 756 transitions, 14312 flow [2021-12-07 01:39:09,238 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=12415, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=524, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14312, PETRI_PLACES=223, PETRI_TRANSITIONS=756} [2021-12-07 01:39:09,239 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 64 predicate places. [2021-12-07 01:39:09,239 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 756 transitions, 14312 flow [2021-12-07 01:39:09,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 116.44444444444444) internal successors, (1048), 9 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:09,239 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:39:09,239 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:09,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 01:39:09,239 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:39:09,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:09,240 INFO L85 PathProgramCache]: Analyzing trace with hash 869225267, now seen corresponding path program 16 times [2021-12-07 01:39:09,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:09,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154659093] [2021-12-07 01:39:09,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:09,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:09,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:39:09,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154659093] [2021-12-07 01:39:09,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154659093] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:09,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:09,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:39:09,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003761733] [2021-12-07 01:39:09,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:09,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:39:09,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:39:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:39:09,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:39:09,325 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:39:09,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 756 transitions, 14312 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:09,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:39:09,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:39:09,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:39:14,836 INFO L129 PetriNetUnfolder]: 14582/30716 cut-off events. [2021-12-07 01:39:14,836 INFO L130 PetriNetUnfolder]: For 428252/443334 co-relation queries the response was YES. [2021-12-07 01:39:15,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177873 conditions, 30716 events. 14582/30716 cut-off events. For 428252/443334 co-relation queries the response was YES. Maximal size of possible extension queue 1542. Compared 327458 event pairs, 2314 based on Foata normal form. 4430/33679 useless extension candidates. Maximal degree in co-relation 60608. Up to 6722 conditions per place. [2021-12-07 01:39:15,456 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 181 selfloop transitions, 617 changer transitions 5/914 dead transitions. [2021-12-07 01:39:15,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 914 transitions, 18076 flow [2021-12-07 01:39:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:39:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-07 01:39:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1367 transitions. [2021-12-07 01:39:15,458 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8284848484848485 [2021-12-07 01:39:15,458 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1367 transitions. [2021-12-07 01:39:15,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1367 transitions. [2021-12-07 01:39:15,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:39:15,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1367 transitions. [2021-12-07 01:39:15,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.7) internal successors, (1367), 10 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:15,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:15,461 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:15,461 INFO L186 Difference]: Start difference. First operand has 223 places, 756 transitions, 14312 flow. Second operand 10 states and 1367 transitions. [2021-12-07 01:39:15,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 914 transitions, 18076 flow [2021-12-07 01:39:15,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 914 transitions, 17099 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-12-07 01:39:15,897 INFO L242 Difference]: Finished difference. Result has 226 places, 819 transitions, 16268 flow [2021-12-07 01:39:15,897 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=13432, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=552, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16268, PETRI_PLACES=226, PETRI_TRANSITIONS=819} [2021-12-07 01:39:15,898 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 67 predicate places. [2021-12-07 01:39:15,898 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 819 transitions, 16268 flow [2021-12-07 01:39:15,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:15,898 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:39:15,898 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:15,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 01:39:15,898 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:39:15,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:15,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1188466345, now seen corresponding path program 17 times [2021-12-07 01:39:15,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:15,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916114350] [2021-12-07 01:39:15,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:15,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:15,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:39:15,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916114350] [2021-12-07 01:39:15,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916114350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:15,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:15,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:39:15,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645633443] [2021-12-07 01:39:15,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:15,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:39:15,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:39:15,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:39:15,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:39:15,977 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:39:15,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 819 transitions, 16268 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:15,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:39:15,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:39:15,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:39:21,854 INFO L129 PetriNetUnfolder]: 13640/29436 cut-off events. [2021-12-07 01:39:21,854 INFO L130 PetriNetUnfolder]: For 430263/442578 co-relation queries the response was YES. [2021-12-07 01:39:22,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172232 conditions, 29436 events. 13640/29436 cut-off events. For 430263/442578 co-relation queries the response was YES. Maximal size of possible extension queue 1532. Compared 317958 event pairs, 2140 based on Foata normal form. 3571/31625 useless extension candidates. Maximal degree in co-relation 61310. Up to 6383 conditions per place. [2021-12-07 01:39:22,237 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 177 selfloop transitions, 667 changer transitions 13/968 dead transitions. [2021-12-07 01:39:22,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 968 transitions, 20020 flow [2021-12-07 01:39:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:39:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-07 01:39:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1364 transitions. [2021-12-07 01:39:22,239 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2021-12-07 01:39:22,239 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1364 transitions. [2021-12-07 01:39:22,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1364 transitions. [2021-12-07 01:39:22,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:39:22,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1364 transitions. [2021-12-07 01:39:22,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:22,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:22,242 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:22,242 INFO L186 Difference]: Start difference. First operand has 226 places, 819 transitions, 16268 flow. Second operand 10 states and 1364 transitions. [2021-12-07 01:39:22,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 968 transitions, 20020 flow [2021-12-07 01:39:22,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 968 transitions, 19892 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-07 01:39:22,656 INFO L242 Difference]: Finished difference. Result has 233 places, 869 transitions, 18881 flow [2021-12-07 01:39:22,656 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=16080, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=816, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=606, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18881, PETRI_PLACES=233, PETRI_TRANSITIONS=869} [2021-12-07 01:39:22,657 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 74 predicate places. [2021-12-07 01:39:22,657 INFO L470 AbstractCegarLoop]: Abstraction has has 233 places, 869 transitions, 18881 flow [2021-12-07 01:39:22,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:22,657 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:39:22,657 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:22,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 01:39:22,658 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:39:22,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:22,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2128521595, now seen corresponding path program 18 times [2021-12-07 01:39:22,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:22,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421832648] [2021-12-07 01:39:22,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:22,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:22,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:39:22,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421832648] [2021-12-07 01:39:22,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421832648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:22,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:22,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:39:22,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896738004] [2021-12-07 01:39:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:22,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:39:22,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:39:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:39:22,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:39:22,740 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:39:22,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 869 transitions, 18881 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:22,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:39:22,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:39:22,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:39:28,964 INFO L129 PetriNetUnfolder]: 13628/29669 cut-off events. [2021-12-07 01:39:28,964 INFO L130 PetriNetUnfolder]: For 507113/520539 co-relation queries the response was YES. [2021-12-07 01:39:29,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180639 conditions, 29669 events. 13628/29669 cut-off events. For 507113/520539 co-relation queries the response was YES. Maximal size of possible extension queue 1512. Compared 321105 event pairs, 1766 based on Foata normal form. 3358/31608 useless extension candidates. Maximal degree in co-relation 65856. Up to 7098 conditions per place. [2021-12-07 01:39:29,321 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 119 selfloop transitions, 741 changer transitions 4/975 dead transitions. [2021-12-07 01:39:29,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 975 transitions, 21603 flow [2021-12-07 01:39:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:39:29,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-07 01:39:29,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1366 transitions. [2021-12-07 01:39:29,323 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8278787878787879 [2021-12-07 01:39:29,323 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1366 transitions. [2021-12-07 01:39:29,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1366 transitions. [2021-12-07 01:39:29,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:39:29,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1366 transitions. [2021-12-07 01:39:29,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.6) internal successors, (1366), 10 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:29,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:29,326 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:29,326 INFO L186 Difference]: Start difference. First operand has 233 places, 869 transitions, 18881 flow. Second operand 10 states and 1366 transitions. [2021-12-07 01:39:29,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 975 transitions, 21603 flow [2021-12-07 01:39:29,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 975 transitions, 21375 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-07 01:39:29,869 INFO L242 Difference]: Finished difference. Result has 239 places, 900 transitions, 20926 flow [2021-12-07 01:39:29,870 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=18665, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=710, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20926, PETRI_PLACES=239, PETRI_TRANSITIONS=900} [2021-12-07 01:39:29,870 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 80 predicate places. [2021-12-07 01:39:29,871 INFO L470 AbstractCegarLoop]: Abstraction has has 239 places, 900 transitions, 20926 flow [2021-12-07 01:39:29,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:29,871 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:39:29,871 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:29,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 01:39:29,871 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:39:29,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:29,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1664611429, now seen corresponding path program 19 times [2021-12-07 01:39:29,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:29,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052514811] [2021-12-07 01:39:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:29,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:29,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:39:29,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052514811] [2021-12-07 01:39:29,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052514811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:29,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:29,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:39:29,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893207997] [2021-12-07 01:39:29,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:29,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:39:29,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:39:29,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:39:29,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:39:29,992 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:39:29,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 900 transitions, 20926 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:29,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:39:29,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:39:29,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:39:37,228 INFO L129 PetriNetUnfolder]: 14114/28108 cut-off events. [2021-12-07 01:39:37,228 INFO L130 PetriNetUnfolder]: For 446043/446057 co-relation queries the response was YES. [2021-12-07 01:39:37,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193679 conditions, 28108 events. 14114/28108 cut-off events. For 446043/446057 co-relation queries the response was YES. Maximal size of possible extension queue 1334. Compared 277128 event pairs, 2090 based on Foata normal form. 1479/28913 useless extension candidates. Maximal degree in co-relation 113960. Up to 6832 conditions per place. [2021-12-07 01:39:37,586 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 252 selfloop transitions, 742 changer transitions 56/1142 dead transitions. [2021-12-07 01:39:37,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 1142 transitions, 26811 flow [2021-12-07 01:39:37,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:39:37,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-07 01:39:37,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1421 transitions. [2021-12-07 01:39:37,588 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7829201101928375 [2021-12-07 01:39:37,588 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1421 transitions. [2021-12-07 01:39:37,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1421 transitions. [2021-12-07 01:39:37,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:39:37,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1421 transitions. [2021-12-07 01:39:37,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.1818181818182) internal successors, (1421), 11 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:37,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:37,591 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:37,591 INFO L186 Difference]: Start difference. First operand has 239 places, 900 transitions, 20926 flow. Second operand 11 states and 1421 transitions. [2021-12-07 01:39:37,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 1142 transitions, 26811 flow [2021-12-07 01:39:38,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1142 transitions, 25287 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-12-07 01:39:38,485 INFO L242 Difference]: Finished difference. Result has 245 places, 950 transitions, 22998 flow [2021-12-07 01:39:38,486 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=18826, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=870, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=644, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22998, PETRI_PLACES=245, PETRI_TRANSITIONS=950} [2021-12-07 01:39:38,486 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 86 predicate places. [2021-12-07 01:39:38,486 INFO L470 AbstractCegarLoop]: Abstraction has has 245 places, 950 transitions, 22998 flow [2021-12-07 01:39:38,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:38,486 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:39:38,487 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:38,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-07 01:39:38,487 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:39:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash 674938377, now seen corresponding path program 20 times [2021-12-07 01:39:38,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:38,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536387590] [2021-12-07 01:39:38,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:38,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:38,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:39:38,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536387590] [2021-12-07 01:39:38,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536387590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:38,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:38,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:39:38,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287092660] [2021-12-07 01:39:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:38,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:39:38,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:39:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:39:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:39:38,573 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:39:38,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 950 transitions, 22998 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:38,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:39:38,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:39:38,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:39:43,822 INFO L129 PetriNetUnfolder]: 8616/20901 cut-off events. [2021-12-07 01:39:43,822 INFO L130 PetriNetUnfolder]: For 369059/375301 co-relation queries the response was YES. [2021-12-07 01:39:43,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137870 conditions, 20901 events. 8616/20901 cut-off events. For 369059/375301 co-relation queries the response was YES. Maximal size of possible extension queue 1131. Compared 228975 event pairs, 976 based on Foata normal form. 2174/22297 useless extension candidates. Maximal degree in co-relation 59841. Up to 4196 conditions per place. [2021-12-07 01:39:44,048 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 125 selfloop transitions, 863 changer transitions 39/1138 dead transitions. [2021-12-07 01:39:44,048 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 1138 transitions, 28351 flow [2021-12-07 01:39:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 01:39:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-07 01:39:44,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1498 transitions. [2021-12-07 01:39:44,049 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8253443526170798 [2021-12-07 01:39:44,050 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1498 transitions. [2021-12-07 01:39:44,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1498 transitions. [2021-12-07 01:39:44,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:39:44,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1498 transitions. [2021-12-07 01:39:44,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 136.1818181818182) internal successors, (1498), 11 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:44,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:44,053 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:44,053 INFO L186 Difference]: Start difference. First operand has 245 places, 950 transitions, 22998 flow. Second operand 11 states and 1498 transitions. [2021-12-07 01:39:44,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 1138 transitions, 28351 flow [2021-12-07 01:39:44,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 1138 transitions, 28020 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-12-07 01:39:44,677 INFO L242 Difference]: Finished difference. Result has 251 places, 1022 transitions, 26649 flow [2021-12-07 01:39:44,678 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=22700, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=950, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=767, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=26649, PETRI_PLACES=251, PETRI_TRANSITIONS=1022} [2021-12-07 01:39:44,678 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 92 predicate places. [2021-12-07 01:39:44,678 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 1022 transitions, 26649 flow [2021-12-07 01:39:44,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:44,678 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:39:44,679 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:44,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-07 01:39:44,679 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:39:44,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1606214769, now seen corresponding path program 21 times [2021-12-07 01:39:44,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:44,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714177390] [2021-12-07 01:39:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:44,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:44,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:39:44,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714177390] [2021-12-07 01:39:44,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714177390] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:44,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:44,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:39:44,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222564763] [2021-12-07 01:39:44,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:44,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:39:44,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:39:44,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:39:44,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:39:44,768 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:39:44,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 1022 transitions, 26649 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:44,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:39:44,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:39:44,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:39:50,767 INFO L129 PetriNetUnfolder]: 8584/20812 cut-off events. [2021-12-07 01:39:50,767 INFO L130 PetriNetUnfolder]: For 433452/441722 co-relation queries the response was YES. [2021-12-07 01:39:50,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147998 conditions, 20812 events. 8584/20812 cut-off events. For 433452/441722 co-relation queries the response was YES. Maximal size of possible extension queue 1188. Compared 231001 event pairs, 1027 based on Foata normal form. 2593/22588 useless extension candidates. Maximal degree in co-relation 64471. Up to 4332 conditions per place. [2021-12-07 01:39:51,036 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 160 selfloop transitions, 979 changer transitions 34/1284 dead transitions. [2021-12-07 01:39:51,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 1284 transitions, 34068 flow [2021-12-07 01:39:51,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 01:39:51,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-07 01:39:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1908 transitions. [2021-12-07 01:39:51,038 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.825974025974026 [2021-12-07 01:39:51,038 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1908 transitions. [2021-12-07 01:39:51,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1908 transitions. [2021-12-07 01:39:51,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:39:51,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1908 transitions. [2021-12-07 01:39:51,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 136.28571428571428) internal successors, (1908), 14 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:51,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:51,042 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:51,042 INFO L186 Difference]: Start difference. First operand has 251 places, 1022 transitions, 26649 flow. Second operand 14 states and 1908 transitions. [2021-12-07 01:39:51,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 1284 transitions, 34068 flow [2021-12-07 01:39:51,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 1284 transitions, 33443 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-12-07 01:39:52,007 INFO L242 Difference]: Finished difference. Result has 261 places, 1138 transitions, 31502 flow [2021-12-07 01:39:52,008 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=26034, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1018, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=838, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=31502, PETRI_PLACES=261, PETRI_TRANSITIONS=1138} [2021-12-07 01:39:52,009 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 102 predicate places. [2021-12-07 01:39:52,009 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 1138 transitions, 31502 flow [2021-12-07 01:39:52,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:52,009 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:39:52,009 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:52,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-07 01:39:52,009 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:39:52,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:52,010 INFO L85 PathProgramCache]: Analyzing trace with hash 640712847, now seen corresponding path program 22 times [2021-12-07 01:39:52,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:52,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331398738] [2021-12-07 01:39:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:52,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:52,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:39:52,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331398738] [2021-12-07 01:39:52,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331398738] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:52,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:52,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:39:52,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495568742] [2021-12-07 01:39:52,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:52,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:39:52,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:39:52,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:39:52,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:39:52,095 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:39:52,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 1138 transitions, 31502 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:52,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:39:52,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:39:52,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:39:58,469 INFO L129 PetriNetUnfolder]: 8591/21272 cut-off events. [2021-12-07 01:39:58,469 INFO L130 PetriNetUnfolder]: For 487023/495047 co-relation queries the response was YES. [2021-12-07 01:39:58,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156987 conditions, 21272 events. 8591/21272 cut-off events. For 487023/495047 co-relation queries the response was YES. Maximal size of possible extension queue 1238. Compared 241201 event pairs, 1046 based on Foata normal form. 2267/22669 useless extension candidates. Maximal degree in co-relation 69409. Up to 4434 conditions per place. [2021-12-07 01:39:58,768 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 154 selfloop transitions, 1023 changer transitions 52/1340 dead transitions. [2021-12-07 01:39:58,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 1340 transitions, 37317 flow [2021-12-07 01:39:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 01:39:58,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-07 01:39:58,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1902 transitions. [2021-12-07 01:39:58,770 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8233766233766234 [2021-12-07 01:39:58,770 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1902 transitions. [2021-12-07 01:39:58,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1902 transitions. [2021-12-07 01:39:58,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:39:58,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1902 transitions. [2021-12-07 01:39:58,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 135.85714285714286) internal successors, (1902), 14 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:58,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:58,774 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:58,774 INFO L186 Difference]: Start difference. First operand has 261 places, 1138 transitions, 31502 flow. Second operand 14 states and 1902 transitions. [2021-12-07 01:39:58,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 1340 transitions, 37317 flow [2021-12-07 01:40:00,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 1340 transitions, 36477 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-12-07 01:40:00,179 INFO L242 Difference]: Finished difference. Result has 271 places, 1182 transitions, 33729 flow [2021-12-07 01:40:00,180 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=30754, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=937, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33729, PETRI_PLACES=271, PETRI_TRANSITIONS=1182} [2021-12-07 01:40:00,180 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 112 predicate places. [2021-12-07 01:40:00,180 INFO L470 AbstractCegarLoop]: Abstraction has has 271 places, 1182 transitions, 33729 flow [2021-12-07 01:40:00,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:00,181 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:40:00,181 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:00,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-07 01:40:00,181 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:40:00,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:00,181 INFO L85 PathProgramCache]: Analyzing trace with hash 64160507, now seen corresponding path program 23 times [2021-12-07 01:40:00,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:40:00,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577730265] [2021-12-07 01:40:00,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:00,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:40:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:00,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:40:00,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577730265] [2021-12-07 01:40:00,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577730265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:00,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:00,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:40:00,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522986249] [2021-12-07 01:40:00,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:00,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:40:00,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:40:00,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:40:00,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:40:00,293 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:40:00,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 1182 transitions, 33729 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:00,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:40:00,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:40:00,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:40:07,373 INFO L129 PetriNetUnfolder]: 8384/21726 cut-off events. [2021-12-07 01:40:07,373 INFO L130 PetriNetUnfolder]: For 557301/563797 co-relation queries the response was YES. [2021-12-07 01:40:07,558 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163452 conditions, 21726 events. 8384/21726 cut-off events. For 557301/563797 co-relation queries the response was YES. Maximal size of possible extension queue 1319. Compared 254265 event pairs, 975 based on Foata normal form. 1925/22813 useless extension candidates. Maximal degree in co-relation 97664. Up to 4467 conditions per place. [2021-12-07 01:40:07,661 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 144 selfloop transitions, 1043 changer transitions 94/1392 dead transitions. [2021-12-07 01:40:07,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 1392 transitions, 40567 flow [2021-12-07 01:40:07,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 01:40:07,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-07 01:40:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1900 transitions. [2021-12-07 01:40:07,663 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8225108225108225 [2021-12-07 01:40:07,663 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1900 transitions. [2021-12-07 01:40:07,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1900 transitions. [2021-12-07 01:40:07,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:40:07,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1900 transitions. [2021-12-07 01:40:07,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 135.71428571428572) internal successors, (1900), 14 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:07,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:07,667 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:07,667 INFO L186 Difference]: Start difference. First operand has 271 places, 1182 transitions, 33729 flow. Second operand 14 states and 1900 transitions. [2021-12-07 01:40:07,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 1392 transitions, 40567 flow [2021-12-07 01:40:09,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 1392 transitions, 39142 flow, removed 22 selfloop flow, removed 8 redundant places. [2021-12-07 01:40:09,075 INFO L242 Difference]: Finished difference. Result has 278 places, 1202 transitions, 34772 flow [2021-12-07 01:40:09,076 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=32457, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=945, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=34772, PETRI_PLACES=278, PETRI_TRANSITIONS=1202} [2021-12-07 01:40:09,077 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 119 predicate places. [2021-12-07 01:40:09,077 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 1202 transitions, 34772 flow [2021-12-07 01:40:09,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:09,077 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:40:09,077 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:09,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-07 01:40:09,077 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:40:09,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:09,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1960294527, now seen corresponding path program 24 times [2021-12-07 01:40:09,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:40:09,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556525604] [2021-12-07 01:40:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:09,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:40:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:09,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:40:09,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556525604] [2021-12-07 01:40:09,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556525604] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:09,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:09,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-07 01:40:09,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502011494] [2021-12-07 01:40:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:09,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-07 01:40:09,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:40:09,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 01:40:09,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:40:09,207 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:40:09,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 1202 transitions, 34772 flow. Second operand has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:09,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:40:09,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:40:09,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:40:19,096 INFO L129 PetriNetUnfolder]: 12060/27029 cut-off events. [2021-12-07 01:40:19,096 INFO L130 PetriNetUnfolder]: For 676589/676597 co-relation queries the response was YES. [2021-12-07 01:40:19,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218904 conditions, 27029 events. 12060/27029 cut-off events. For 676589/676597 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 300157 event pairs, 1516 based on Foata normal form. 528/26919 useless extension candidates. Maximal degree in co-relation 159970. Up to 6392 conditions per place. [2021-12-07 01:40:19,494 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 283 selfloop transitions, 1048 changer transitions 115/1538 dead transitions. [2021-12-07 01:40:19,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 1538 transitions, 42627 flow [2021-12-07 01:40:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:40:19,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-07 01:40:19,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1948 transitions. [2021-12-07 01:40:19,496 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.787070707070707 [2021-12-07 01:40:19,497 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1948 transitions. [2021-12-07 01:40:19,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1948 transitions. [2021-12-07 01:40:19,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:40:19,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1948 transitions. [2021-12-07 01:40:19,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 129.86666666666667) internal successors, (1948), 15 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:19,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 165.0) internal successors, (2640), 16 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:19,501 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 165.0) internal successors, (2640), 16 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:19,501 INFO L186 Difference]: Start difference. First operand has 278 places, 1202 transitions, 34772 flow. Second operand 15 states and 1948 transitions. [2021-12-07 01:40:19,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 1538 transitions, 42627 flow [2021-12-07 01:40:21,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 1538 transitions, 42214 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-12-07 01:40:21,853 INFO L242 Difference]: Finished difference. Result has 290 places, 1205 transitions, 36108 flow [2021-12-07 01:40:21,853 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=34201, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=939, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=36108, PETRI_PLACES=290, PETRI_TRANSITIONS=1205} [2021-12-07 01:40:21,854 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 131 predicate places. [2021-12-07 01:40:21,854 INFO L470 AbstractCegarLoop]: Abstraction has has 290 places, 1205 transitions, 36108 flow [2021-12-07 01:40:21,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:21,854 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:40:21,854 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:21,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-07 01:40:21,854 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:40:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:21,855 INFO L85 PathProgramCache]: Analyzing trace with hash -205733199, now seen corresponding path program 25 times [2021-12-07 01:40:21,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:40:21,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852248722] [2021-12-07 01:40:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:21,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:40:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:21,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:40:21,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852248722] [2021-12-07 01:40:21,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852248722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:21,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:21,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-07 01:40:21,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912873119] [2021-12-07 01:40:21,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:21,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:40:21,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:40:21,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:40:21,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:40:21,942 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:40:21,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 1205 transitions, 36108 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:21,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:40:21,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:40:21,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:40:27,820 INFO L129 PetriNetUnfolder]: 6094/16917 cut-off events. [2021-12-07 01:40:27,820 INFO L130 PetriNetUnfolder]: For 481238/485360 co-relation queries the response was YES. [2021-12-07 01:40:27,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131645 conditions, 16917 events. 6094/16917 cut-off events. For 481238/485360 co-relation queries the response was YES. Maximal size of possible extension queue 1051. Compared 196329 event pairs, 893 based on Foata normal form. 1099/17372 useless extension candidates. Maximal degree in co-relation 67048. Up to 3546 conditions per place. [2021-12-07 01:40:28,024 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 99 selfloop transitions, 1071 changer transitions 2/1283 dead transitions. [2021-12-07 01:40:28,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 1283 transitions, 39165 flow [2021-12-07 01:40:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:40:28,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-07 01:40:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1617 transitions. [2021-12-07 01:40:28,026 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2021-12-07 01:40:28,026 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1617 transitions. [2021-12-07 01:40:28,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1617 transitions. [2021-12-07 01:40:28,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:40:28,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1617 transitions. [2021-12-07 01:40:28,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 134.75) internal successors, (1617), 12 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:28,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:28,030 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:28,030 INFO L186 Difference]: Start difference. First operand has 290 places, 1205 transitions, 36108 flow. Second operand 12 states and 1617 transitions. [2021-12-07 01:40:28,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 1283 transitions, 39165 flow [2021-12-07 01:40:28,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 1283 transitions, 39045 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-12-07 01:40:28,992 INFO L242 Difference]: Finished difference. Result has 297 places, 1213 transitions, 38274 flow [2021-12-07 01:40:28,992 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=35992, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=38274, PETRI_PLACES=297, PETRI_TRANSITIONS=1213} [2021-12-07 01:40:28,993 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 138 predicate places. [2021-12-07 01:40:28,993 INFO L470 AbstractCegarLoop]: Abstraction has has 297 places, 1213 transitions, 38274 flow [2021-12-07 01:40:28,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:28,993 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:40:28,993 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:28,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-07 01:40:28,994 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:40:28,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:28,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1939946517, now seen corresponding path program 26 times [2021-12-07 01:40:28,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:40:28,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745678273] [2021-12-07 01:40:28,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:28,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:40:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:29,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:40:29,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745678273] [2021-12-07 01:40:29,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745678273] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:29,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:29,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:40:29,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341434429] [2021-12-07 01:40:29,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:29,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:40:29,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:40:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:40:29,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:40:29,114 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:40:29,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 1213 transitions, 38274 flow. Second operand has 13 states, 13 states have (on average 114.76923076923077) internal successors, (1492), 13 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:29,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:40:29,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:40:29,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:40:39,231 INFO L129 PetriNetUnfolder]: 11213/26934 cut-off events. [2021-12-07 01:40:39,231 INFO L130 PetriNetUnfolder]: For 814175/814223 co-relation queries the response was YES. [2021-12-07 01:40:39,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218429 conditions, 26934 events. 11213/26934 cut-off events. For 814175/814223 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 308905 event pairs, 2745 based on Foata normal form. 45/26314 useless extension candidates. Maximal degree in co-relation 104185. Up to 5307 conditions per place. [2021-12-07 01:40:39,620 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 495 selfloop transitions, 876 changer transitions 277/1740 dead transitions. [2021-12-07 01:40:39,620 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1740 transitions, 53009 flow [2021-12-07 01:40:39,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 01:40:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-07 01:40:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2414 transitions. [2021-12-07 01:40:39,624 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7700159489633174 [2021-12-07 01:40:39,624 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2414 transitions. [2021-12-07 01:40:39,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2414 transitions. [2021-12-07 01:40:39,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:40:39,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2414 transitions. [2021-12-07 01:40:39,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 127.05263157894737) internal successors, (2414), 19 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:39,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:39,630 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:39,630 INFO L186 Difference]: Start difference. First operand has 297 places, 1213 transitions, 38274 flow. Second operand 19 states and 2414 transitions. [2021-12-07 01:40:39,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1740 transitions, 53009 flow [2021-12-07 01:40:42,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1740 transitions, 50670 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-12-07 01:40:42,407 INFO L242 Difference]: Finished difference. Result has 317 places, 1302 transitions, 42020 flow [2021-12-07 01:40:42,408 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=36496, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=680, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=42020, PETRI_PLACES=317, PETRI_TRANSITIONS=1302} [2021-12-07 01:40:42,408 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 158 predicate places. [2021-12-07 01:40:42,408 INFO L470 AbstractCegarLoop]: Abstraction has has 317 places, 1302 transitions, 42020 flow [2021-12-07 01:40:42,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 114.76923076923077) internal successors, (1492), 13 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:42,409 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:40:42,409 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:42,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-07 01:40:42,409 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:40:42,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:42,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2091592289, now seen corresponding path program 27 times [2021-12-07 01:40:42,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:40:42,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073196876] [2021-12-07 01:40:42,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:42,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:40:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:42,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:42,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:40:42,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073196876] [2021-12-07 01:40:42,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073196876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:42,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:42,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:40:42,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649555963] [2021-12-07 01:40:42,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:42,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:40:42,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:40:42,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:40:42,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:40:42,541 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:40:42,542 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 1302 transitions, 42020 flow. Second operand has 13 states, 13 states have (on average 114.76923076923077) internal successors, (1492), 13 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:42,542 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:40:42,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:40:42,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:40:53,014 INFO L129 PetriNetUnfolder]: 10301/24202 cut-off events. [2021-12-07 01:40:53,014 INFO L130 PetriNetUnfolder]: For 793815/793815 co-relation queries the response was YES. [2021-12-07 01:40:53,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207780 conditions, 24202 events. 10301/24202 cut-off events. For 793815/793815 co-relation queries the response was YES. Maximal size of possible extension queue 1322. Compared 271574 event pairs, 2364 based on Foata normal form. 84/23630 useless extension candidates. Maximal degree in co-relation 186257. Up to 4640 conditions per place. [2021-12-07 01:40:53,400 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 578 selfloop transitions, 899 changer transitions 51/1620 dead transitions. [2021-12-07 01:40:53,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1620 transitions, 48678 flow [2021-12-07 01:40:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 01:40:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-07 01:40:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2426 transitions. [2021-12-07 01:40:53,403 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7738437001594897 [2021-12-07 01:40:53,403 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2426 transitions. [2021-12-07 01:40:53,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2426 transitions. [2021-12-07 01:40:53,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:40:53,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2426 transitions. [2021-12-07 01:40:53,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 127.6842105263158) internal successors, (2426), 19 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:53,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:53,411 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:53,411 INFO L186 Difference]: Start difference. First operand has 317 places, 1302 transitions, 42020 flow. Second operand 19 states and 2426 transitions. [2021-12-07 01:40:53,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1620 transitions, 48678 flow [2021-12-07 01:40:57,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1620 transitions, 48508 flow, removed 28 selfloop flow, removed 5 redundant places. [2021-12-07 01:40:57,292 INFO L242 Difference]: Finished difference. Result has 328 places, 1324 transitions, 43821 flow [2021-12-07 01:40:57,293 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=41906, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=838, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=43821, PETRI_PLACES=328, PETRI_TRANSITIONS=1324} [2021-12-07 01:40:57,293 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 169 predicate places. [2021-12-07 01:40:57,293 INFO L470 AbstractCegarLoop]: Abstraction has has 328 places, 1324 transitions, 43821 flow [2021-12-07 01:40:57,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 114.76923076923077) internal successors, (1492), 13 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:57,294 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:40:57,294 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:57,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-07 01:40:57,294 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:40:57,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:57,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1950720529, now seen corresponding path program 28 times [2021-12-07 01:40:57,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:40:57,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743563246] [2021-12-07 01:40:57,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:57,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:40:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:57,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:40:57,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743563246] [2021-12-07 01:40:57,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743563246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:57,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:57,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:40:57,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571009023] [2021-12-07 01:40:57,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:57,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:40:57,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:40:57,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:40:57,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:40:57,396 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:40:57,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 1324 transitions, 43821 flow. Second operand has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:57,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:40:57,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:40:57,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:41:04,581 INFO L129 PetriNetUnfolder]: 6186/18062 cut-off events. [2021-12-07 01:41:04,581 INFO L130 PetriNetUnfolder]: For 655871/660672 co-relation queries the response was YES. [2021-12-07 01:41:04,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150758 conditions, 18062 events. 6186/18062 cut-off events. For 655871/660672 co-relation queries the response was YES. Maximal size of possible extension queue 1089. Compared 217531 event pairs, 944 based on Foata normal form. 1727/19136 useless extension candidates. Maximal degree in co-relation 150589. Up to 3312 conditions per place. [2021-12-07 01:41:05,080 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 138 selfloop transitions, 1174 changer transitions 49/1472 dead transitions. [2021-12-07 01:41:05,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 1472 transitions, 48561 flow [2021-12-07 01:41:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 01:41:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-07 01:41:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2531 transitions. [2021-12-07 01:41:05,082 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8073365231259968 [2021-12-07 01:41:05,082 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2531 transitions. [2021-12-07 01:41:05,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2531 transitions. [2021-12-07 01:41:05,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:41:05,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2531 transitions. [2021-12-07 01:41:05,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 133.21052631578948) internal successors, (2531), 19 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:05,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:05,088 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:05,088 INFO L186 Difference]: Start difference. First operand has 328 places, 1324 transitions, 43821 flow. Second operand 19 states and 2531 transitions. [2021-12-07 01:41:05,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 1472 transitions, 48561 flow [2021-12-07 01:41:07,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 1472 transitions, 48305 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-12-07 01:41:07,120 INFO L242 Difference]: Finished difference. Result has 342 places, 1315 transitions, 45176 flow [2021-12-07 01:41:07,121 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=43583, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=45176, PETRI_PLACES=342, PETRI_TRANSITIONS=1315} [2021-12-07 01:41:07,122 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 183 predicate places. [2021-12-07 01:41:07,122 INFO L470 AbstractCegarLoop]: Abstraction has has 342 places, 1315 transitions, 45176 flow [2021-12-07 01:41:07,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:07,122 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:41:07,122 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:41:07,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-07 01:41:07,122 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:41:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:41:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash -483786283, now seen corresponding path program 29 times [2021-12-07 01:41:07,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:41:07,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046468189] [2021-12-07 01:41:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:41:07,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:41:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:41:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:41:07,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:41:07,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046468189] [2021-12-07 01:41:07,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046468189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:41:07,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:41:07,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:41:07,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955138760] [2021-12-07 01:41:07,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:41:07,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:41:07,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:41:07,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:41:07,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:41:07,209 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:41:07,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 1315 transitions, 45176 flow. Second operand has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:07,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:41:07,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:41:07,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:41:14,153 INFO L129 PetriNetUnfolder]: 6102/17873 cut-off events. [2021-12-07 01:41:14,153 INFO L130 PetriNetUnfolder]: For 711344/716107 co-relation queries the response was YES. [2021-12-07 01:41:14,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154754 conditions, 17873 events. 6102/17873 cut-off events. For 711344/716107 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 215867 event pairs, 953 based on Foata normal form. 1862/19084 useless extension candidates. Maximal degree in co-relation 139086. Up to 3293 conditions per place. [2021-12-07 01:41:14,430 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 141 selfloop transitions, 1171 changer transitions 62/1484 dead transitions. [2021-12-07 01:41:14,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 1484 transitions, 50728 flow [2021-12-07 01:41:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-07 01:41:14,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-07 01:41:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2538 transitions. [2021-12-07 01:41:14,432 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8095693779904306 [2021-12-07 01:41:14,432 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2538 transitions. [2021-12-07 01:41:14,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2538 transitions. [2021-12-07 01:41:14,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:41:14,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2538 transitions. [2021-12-07 01:41:14,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 133.57894736842104) internal successors, (2538), 19 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:14,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:14,437 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:14,438 INFO L186 Difference]: Start difference. First operand has 342 places, 1315 transitions, 45176 flow. Second operand 19 states and 2538 transitions. [2021-12-07 01:41:14,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 1484 transitions, 50728 flow [2021-12-07 01:41:16,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 1484 transitions, 50167 flow, removed 20 selfloop flow, removed 7 redundant places. [2021-12-07 01:41:16,737 INFO L242 Difference]: Finished difference. Result has 355 places, 1311 transitions, 46623 flow [2021-12-07 01:41:16,738 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=44645, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=46623, PETRI_PLACES=355, PETRI_TRANSITIONS=1311} [2021-12-07 01:41:16,738 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 196 predicate places. [2021-12-07 01:41:16,738 INFO L470 AbstractCegarLoop]: Abstraction has has 355 places, 1311 transitions, 46623 flow [2021-12-07 01:41:16,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:16,739 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:41:16,739 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:41:16,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-07 01:41:16,739 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:41:16,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:41:16,739 INFO L85 PathProgramCache]: Analyzing trace with hash 624910069, now seen corresponding path program 30 times [2021-12-07 01:41:16,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:41:16,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416877515] [2021-12-07 01:41:16,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:41:16,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:41:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:41:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:41:16,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:41:16,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416877515] [2021-12-07 01:41:16,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416877515] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:41:16,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:41:16,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 01:41:16,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850858869] [2021-12-07 01:41:16,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:41:16,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 01:41:16,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:41:16,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 01:41:16,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:41:16,799 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:41:16,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 1311 transitions, 46623 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:16,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:41:16,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:41:16,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:41:19,480 INFO L129 PetriNetUnfolder]: 1479/5436 cut-off events. [2021-12-07 01:41:19,480 INFO L130 PetriNetUnfolder]: For 217695/219933 co-relation queries the response was YES. [2021-12-07 01:41:19,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53033 conditions, 5436 events. 1479/5436 cut-off events. For 217695/219933 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 57508 event pairs, 208 based on Foata normal form. 1536/6835 useless extension candidates. Maximal degree in co-relation 43201. Up to 1086 conditions per place. [2021-12-07 01:41:19,539 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 144 selfloop transitions, 355 changer transitions 267/876 dead transitions. [2021-12-07 01:41:19,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 876 transitions, 29899 flow [2021-12-07 01:41:19,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-07 01:41:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-07 01:41:19,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1343 transitions. [2021-12-07 01:41:19,540 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.813939393939394 [2021-12-07 01:41:19,540 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1343 transitions. [2021-12-07 01:41:19,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1343 transitions. [2021-12-07 01:41:19,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:41:19,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1343 transitions. [2021-12-07 01:41:19,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.3) internal successors, (1343), 10 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:19,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:19,543 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:19,543 INFO L186 Difference]: Start difference. First operand has 355 places, 1311 transitions, 46623 flow. Second operand 10 states and 1343 transitions. [2021-12-07 01:41:19,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 876 transitions, 29899 flow [2021-12-07 01:41:20,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 876 transitions, 29614 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-12-07 01:41:20,086 INFO L242 Difference]: Finished difference. Result has 360 places, 570 transitions, 17109 flow [2021-12-07 01:41:20,087 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=26872, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=812, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=343, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17109, PETRI_PLACES=360, PETRI_TRANSITIONS=570} [2021-12-07 01:41:20,088 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 201 predicate places. [2021-12-07 01:41:20,088 INFO L470 AbstractCegarLoop]: Abstraction has has 360 places, 570 transitions, 17109 flow [2021-12-07 01:41:20,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:20,088 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:41:20,088 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:41:20,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-07 01:41:20,088 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:41:20,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:41:20,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1755512853, now seen corresponding path program 31 times [2021-12-07 01:41:20,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:41:20,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5532844] [2021-12-07 01:41:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:41:20,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:41:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:41:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:41:20,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:41:20,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5532844] [2021-12-07 01:41:20,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5532844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:41:20,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:41:20,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:41:20,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038977082] [2021-12-07 01:41:20,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:41:20,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:41:20,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:41:20,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:41:20,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:41:20,190 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2021-12-07 01:41:20,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 570 transitions, 17109 flow. Second operand has 11 states, 11 states have (on average 115.45454545454545) internal successors, (1270), 11 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:20,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:41:20,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2021-12-07 01:41:20,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:41:21,261 INFO L129 PetriNetUnfolder]: 955/3166 cut-off events. [2021-12-07 01:41:21,262 INFO L130 PetriNetUnfolder]: For 113933/113933 co-relation queries the response was YES. [2021-12-07 01:41:21,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29115 conditions, 3166 events. 955/3166 cut-off events. For 113933/113933 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 27455 event pairs, 159 based on Foata normal form. 111/3211 useless extension candidates. Maximal degree in co-relation 26244. Up to 549 conditions per place. [2021-12-07 01:41:21,299 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 151 selfloop transitions, 228 changer transitions 116/587 dead transitions. [2021-12-07 01:41:21,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 587 transitions, 16615 flow [2021-12-07 01:41:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-07 01:41:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-07 01:41:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1510 transitions. [2021-12-07 01:41:21,300 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7626262626262627 [2021-12-07 01:41:21,300 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1510 transitions. [2021-12-07 01:41:21,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1510 transitions. [2021-12-07 01:41:21,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:41:21,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1510 transitions. [2021-12-07 01:41:21,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 125.83333333333333) internal successors, (1510), 12 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:21,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:21,304 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:21,304 INFO L186 Difference]: Start difference. First operand has 360 places, 570 transitions, 17109 flow. Second operand 12 states and 1510 transitions. [2021-12-07 01:41:21,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 587 transitions, 16615 flow [2021-12-07 01:41:21,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 587 transitions, 15339 flow, removed 54 selfloop flow, removed 21 redundant places. [2021-12-07 01:41:21,576 INFO L242 Difference]: Finished difference. Result has 351 places, 391 transitions, 9642 flow [2021-12-07 01:41:21,576 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=13597, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9642, PETRI_PLACES=351, PETRI_TRANSITIONS=391} [2021-12-07 01:41:21,577 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 192 predicate places. [2021-12-07 01:41:21,577 INFO L470 AbstractCegarLoop]: Abstraction has has 351 places, 391 transitions, 9642 flow [2021-12-07 01:41:21,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 115.45454545454545) internal successors, (1270), 11 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:21,577 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:41:21,577 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:41:21,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-07 01:41:21,577 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:41:21,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:41:21,578 INFO L85 PathProgramCache]: Analyzing trace with hash 587936135, now seen corresponding path program 32 times [2021-12-07 01:41:21,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:41:21,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017063095] [2021-12-07 01:41:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:41:21,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:41:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:41:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:41:21,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:41:21,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017063095] [2021-12-07 01:41:21,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017063095] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:41:21,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:41:21,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:41:21,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526251729] [2021-12-07 01:41:21,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:41:21,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:41:21,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:41:21,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:41:21,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:41:21,654 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:41:21,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 391 transitions, 9642 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:21,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:41:21,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:41:21,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:41:22,053 INFO L129 PetriNetUnfolder]: 225/1150 cut-off events. [2021-12-07 01:41:22,053 INFO L130 PetriNetUnfolder]: For 47557/47615 co-relation queries the response was YES. [2021-12-07 01:41:22,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10906 conditions, 1150 events. 225/1150 cut-off events. For 47557/47615 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8720 event pairs, 5 based on Foata normal form. 81/1210 useless extension candidates. Maximal degree in co-relation 9820. Up to 213 conditions per place. [2021-12-07 01:41:22,063 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 63 selfloop transitions, 69 changer transitions 125/364 dead transitions. [2021-12-07 01:41:22,063 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 364 transitions, 9268 flow [2021-12-07 01:41:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:41:22,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-07 01:41:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1695 transitions. [2021-12-07 01:41:22,065 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7902097902097902 [2021-12-07 01:41:22,065 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1695 transitions. [2021-12-07 01:41:22,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1695 transitions. [2021-12-07 01:41:22,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:41:22,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1695 transitions. [2021-12-07 01:41:22,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 130.3846153846154) internal successors, (1695), 13 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,068 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,068 INFO L186 Difference]: Start difference. First operand has 351 places, 391 transitions, 9642 flow. Second operand 13 states and 1695 transitions. [2021-12-07 01:41:22,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 364 transitions, 9268 flow [2021-12-07 01:41:22,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 364 transitions, 8189 flow, removed 42 selfloop flow, removed 29 redundant places. [2021-12-07 01:41:22,185 INFO L242 Difference]: Finished difference. Result has 333 places, 211 transitions, 2903 flow [2021-12-07 01:41:22,186 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=7229, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2903, PETRI_PLACES=333, PETRI_TRANSITIONS=211} [2021-12-07 01:41:22,186 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 174 predicate places. [2021-12-07 01:41:22,186 INFO L470 AbstractCegarLoop]: Abstraction has has 333 places, 211 transitions, 2903 flow [2021-12-07 01:41:22,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,187 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:41:22,187 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:41:22,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-07 01:41:22,187 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:41:22,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:41:22,187 INFO L85 PathProgramCache]: Analyzing trace with hash -943938963, now seen corresponding path program 33 times [2021-12-07 01:41:22,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:41:22,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486873220] [2021-12-07 01:41:22,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:41:22,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:41:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:41:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:41:22,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:41:22,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486873220] [2021-12-07 01:41:22,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486873220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:41:22,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:41:22,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:41:22,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317428269] [2021-12-07 01:41:22,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:41:22,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-07 01:41:22,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:41:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-07 01:41:22,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-07 01:41:22,265 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:41:22,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 211 transitions, 2903 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:41:22,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:41:22,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:41:22,459 INFO L129 PetriNetUnfolder]: 73/481 cut-off events. [2021-12-07 01:41:22,459 INFO L130 PetriNetUnfolder]: For 14614/14635 co-relation queries the response was YES. [2021-12-07 01:41:22,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 481 events. 73/481 cut-off events. For 14614/14635 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1964 event pairs, 5 based on Foata normal form. 25/501 useless extension candidates. Maximal degree in co-relation 3153. Up to 54 conditions per place. [2021-12-07 01:41:22,463 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 58 selfloop transitions, 61 changer transitions 19/245 dead transitions. [2021-12-07 01:41:22,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 245 transitions, 3497 flow [2021-12-07 01:41:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 01:41:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-07 01:41:22,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1676 transitions. [2021-12-07 01:41:22,465 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7813519813519814 [2021-12-07 01:41:22,465 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1676 transitions. [2021-12-07 01:41:22,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1676 transitions. [2021-12-07 01:41:22,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:41:22,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1676 transitions. [2021-12-07 01:41:22,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 128.92307692307693) internal successors, (1676), 13 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,467 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,468 INFO L186 Difference]: Start difference. First operand has 333 places, 211 transitions, 2903 flow. Second operand 13 states and 1676 transitions. [2021-12-07 01:41:22,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 245 transitions, 3497 flow [2021-12-07 01:41:22,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 245 transitions, 2039 flow, removed 81 selfloop flow, removed 85 redundant places. [2021-12-07 01:41:22,491 INFO L242 Difference]: Finished difference. Result has 239 places, 195 transitions, 1452 flow [2021-12-07 01:41:22,491 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1519, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1452, PETRI_PLACES=239, PETRI_TRANSITIONS=195} [2021-12-07 01:41:22,492 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 80 predicate places. [2021-12-07 01:41:22,492 INFO L470 AbstractCegarLoop]: Abstraction has has 239 places, 195 transitions, 1452 flow [2021-12-07 01:41:22,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,492 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 01:41:22,492 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:41:22,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-07 01:41:22,492 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-12-07 01:41:22,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:41:22,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1468993731, now seen corresponding path program 34 times [2021-12-07 01:41:22,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:41:22,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713424555] [2021-12-07 01:41:22,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:41:22,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:41:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:41:22,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:41:22,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:41:22,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713424555] [2021-12-07 01:41:22,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713424555] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:41:22,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:41:22,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-07 01:41:22,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033906764] [2021-12-07 01:41:22,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:41:22,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:41:22,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:41:22,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:41:22,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-12-07 01:41:22,587 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2021-12-07 01:41:22,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 195 transitions, 1452 flow. Second operand has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 01:41:22,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2021-12-07 01:41:22,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 01:41:22,731 INFO L129 PetriNetUnfolder]: 52/335 cut-off events. [2021-12-07 01:41:22,731 INFO L130 PetriNetUnfolder]: For 2863/2869 co-relation queries the response was YES. [2021-12-07 01:41:22,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 335 events. 52/335 cut-off events. For 2863/2869 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1390 event pairs, 0 based on Foata normal form. 12/340 useless extension candidates. Maximal degree in co-relation 1532. Up to 36 conditions per place. [2021-12-07 01:41:22,732 INFO L132 encePairwiseOnDemand]: 153/165 looper letters, 0 selfloop transitions, 0 changer transitions 186/186 dead transitions. [2021-12-07 01:41:22,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 186 transitions, 1722 flow [2021-12-07 01:41:22,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 01:41:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-07 01:41:22,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2015 transitions. [2021-12-07 01:41:22,734 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7632575757575758 [2021-12-07 01:41:22,734 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2015 transitions. [2021-12-07 01:41:22,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2015 transitions. [2021-12-07 01:41:22,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:41:22,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2015 transitions. [2021-12-07 01:41:22,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 125.9375) internal successors, (2015), 16 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,738 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,738 INFO L186 Difference]: Start difference. First operand has 239 places, 195 transitions, 1452 flow. Second operand 16 states and 2015 transitions. [2021-12-07 01:41:22,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 186 transitions, 1722 flow [2021-12-07 01:41:22,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 186 transitions, 1427 flow, removed 1 selfloop flow, removed 28 redundant places. [2021-12-07 01:41:22,745 INFO L242 Difference]: Finished difference. Result has 193 places, 0 transitions, 0 flow [2021-12-07 01:41:22,746 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=193, PETRI_TRANSITIONS=0} [2021-12-07 01:41:22,746 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 34 predicate places. [2021-12-07 01:41:22,746 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 0 transitions, 0 flow [2021-12-07 01:41:22,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:22,749 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-12-07 01:41:22,749 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2021-12-07 01:41:22,749 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2021-12-07 01:41:22,749 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 6 remaining) [2021-12-07 01:41:22,749 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 6 remaining) [2021-12-07 01:41:22,749 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (0 of 6 remaining) [2021-12-07 01:41:22,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-07 01:41:22,752 INFO L732 BasicCegarLoop]: Path program histogram: [34] [2021-12-07 01:41:22,753 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-07 01:41:22,753 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:41:22,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:41:22 BasicIcfg [2021-12-07 01:41:22,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:41:22,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:41:22,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:41:22,756 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:41:22,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:38" (3/4) ... [2021-12-07 01:41:22,758 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 01:41:22,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-12-07 01:41:22,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-12-07 01:41:22,761 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-12-07 01:41:22,762 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-12-07 01:41:22,762 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2021-12-07 01:41:22,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-12-07 01:41:22,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-07 01:41:22,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 01:41:22,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 01:41:22,800 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 01:41:22,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:41:22,801 INFO L158 Benchmark]: Toolchain (without parser) took 225089.68ms. Allocated memory was 134.2MB in the beginning and 6.4GB in the end (delta: 6.3GB). Free memory was 109.0MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 4.0GB. Max. memory is 16.1GB. [2021-12-07 01:41:22,801 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:41:22,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.21ms. Allocated memory is still 134.2MB. Free memory was 108.8MB in the beginning and 97.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-07 01:41:22,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.56ms. Allocated memory is still 134.2MB. Free memory was 97.5MB in the beginning and 95.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:41:22,802 INFO L158 Benchmark]: Boogie Preprocessor took 21.61ms. Allocated memory is still 134.2MB. Free memory was 95.2MB in the beginning and 93.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:41:22,802 INFO L158 Benchmark]: RCFGBuilder took 401.72ms. Allocated memory is still 134.2MB. Free memory was 93.6MB in the beginning and 72.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-07 01:41:22,803 INFO L158 Benchmark]: TraceAbstraction took 224403.36ms. Allocated memory was 134.2MB in the beginning and 6.4GB in the end (delta: 6.3GB). Free memory was 72.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 4.0GB. Max. memory is 16.1GB. [2021-12-07 01:41:22,803 INFO L158 Benchmark]: Witness Printer took 44.68ms. Allocated memory is still 6.4GB. Free memory was 2.4GB in the beginning and 2.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-07 01:41:22,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.21ms. Allocated memory is still 134.2MB. Free memory was 108.8MB in the beginning and 97.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.56ms. Allocated memory is still 134.2MB. Free memory was 97.5MB in the beginning and 95.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.61ms. Allocated memory is still 134.2MB. Free memory was 95.2MB in the beginning and 93.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.72ms. Allocated memory is still 134.2MB. Free memory was 93.6MB in the beginning and 72.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 224403.36ms. Allocated memory was 134.2MB in the beginning and 6.4GB in the end (delta: 6.3GB). Free memory was 72.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 4.0GB. Max. memory is 16.1GB. * Witness Printer took 44.68ms. Allocated memory is still 6.4GB. Free memory was 2.4GB in the beginning and 2.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 168]: 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 with 1 thread instances CFG has 11 procedures, 205 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 224.3s, OverallIterations: 34, TraceHistogramMax: 1, PathProgramHistogramMax: 34, EmptinessCheckTime: 0.0s, AutomataDifference: 219.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3505 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3505 mSDsluCounter, 2307 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4465 mSDsCounter, 1897 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13739 IncrementalHoareTripleChecker+Invalid, 15636 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1897 mSolverCounterUnsat, 684 mSDtfsCounter, 13739 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 563 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 435 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46623occurred in iteration=29, InterpolantAutomatonStates: 397, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 4794 NumberOfCodeBlocks, 4794 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 4760 ConstructedInterpolants, 0 QuantifiedInterpolants, 13984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 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! [2021-12-07 01:41:22,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3886014-d819-474a-a1a4-c6e62badec76/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE