./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:36:37,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:36:37,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:36:37,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:36:37,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:36:37,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:36:37,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:36:37,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:36:37,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:36:37,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:36:37,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:36:37,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:36:37,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:36:37,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:36:37,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:36:37,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:36:37,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:36:37,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:36:37,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:36:37,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:36:37,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:36:37,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:36:37,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:36:37,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:36:37,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:36:37,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:36:37,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:36:37,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:36:37,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:36:37,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:36:37,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:36:37,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:36:37,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:36:37,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:36:37,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:36:37,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:36:37,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:36:37,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:36:37,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:36:37,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:36:37,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:36:37,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:36:38,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:36:38,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:36:38,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:36:38,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:36:38,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:36:38,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:36:38,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:36:38,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:36:38,038 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:36:38,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:36:38,039 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:36:38,039 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:36:38,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:36:38,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:36:38,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:36:38,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:36:38,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:36:38,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:36:38,041 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:36:38,041 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:36:38,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:36:38,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:36:38,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:36:38,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:36:38,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:36:38,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:36:38,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:36:38,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:36:38,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:36:38,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:36:38,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:36:38,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:36:38,044 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:36:38,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:36:38,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:36:38,045 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_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-11-02 20:36:38,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:36:38,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:36:38,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:36:38,353 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:36:38,353 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:36:38,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-02 20:36:38,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/data/39af1293a/a547deced6254d338d6e865a01eb24e0/FLAGdbeb501a3 [2022-11-02 20:36:39,086 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:36:39,086 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-02 20:36:39,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/data/39af1293a/a547deced6254d338d6e865a01eb24e0/FLAGdbeb501a3 [2022-11-02 20:36:39,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/data/39af1293a/a547deced6254d338d6e865a01eb24e0 [2022-11-02 20:36:39,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:36:39,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:36:39,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:36:39,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:36:39,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:36:39,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:36:39" (1/1) ... [2022-11-02 20:36:39,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a524e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:39, skipping insertion in model container [2022-11-02 20:36:39,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:36:39" (1/1) ... [2022-11-02 20:36:39,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:36:39,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:36:39,605 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:36:40,397 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_d04a4df5-450e-4fde-9b9c-0579605cc5c5/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-02 20:36:40,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:36:40,476 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:36:40,491 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:36:40,535 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_d04a4df5-450e-4fde-9b9c-0579605cc5c5/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-02 20:36:40,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:36:40,677 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:36:40,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40 WrapperNode [2022-11-02 20:36:40,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:36:40,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:36:40,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:36:40,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:36:40,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,809 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-02 20:36:40,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:36:40,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:36:40,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:36:40,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:36:40,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,913 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:36:40,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:36:40,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:36:40,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:36:40,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (1/1) ... [2022-11-02 20:36:40,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:36:40,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:36:40,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:36:41,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d04a4df5-450e-4fde-9b9c-0579605cc5c5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:36:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:36:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:36:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:36:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:36:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:36:41,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:36:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:36:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:36:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:36:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-02 20:36:41,029 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-02 20:36:41,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:36:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:36:41,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:36:41,031 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:36:41,451 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:36:41,453 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:36:41,990 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:36:42,141 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:36:42,142 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:36:42,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:42 BoogieIcfgContainer [2022-11-02 20:36:42,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:36:42,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:36:42,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:36:42,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:36:42,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:36:39" (1/3) ... [2022-11-02 20:36:42,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4082fb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:42, skipping insertion in model container [2022-11-02 20:36:42,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:36:40" (2/3) ... [2022-11-02 20:36:42,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4082fb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:36:42, skipping insertion in model container [2022-11-02 20:36:42,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:36:42" (3/3) ... [2022-11-02 20:36:42,158 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-11-02 20:36:42,167 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:36:42,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:36:42,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-02 20:36:42,178 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:36:42,270 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:36:42,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-02 20:36:42,525 INFO L130 PetriNetUnfolder]: 8/324 cut-off events. [2022-11-02 20:36:42,525 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:36:42,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 324 events. 8/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 607 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2022-11-02 20:36:42,531 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-02 20:36:42,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-02 20:36:42,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:36:42,574 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9b4c703, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:36:42,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-02 20:36:42,585 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-02 20:36:42,585 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:36:42,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:42,587 INFO L208 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] [2022-11-02 20:36:42,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:42,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:42,595 INFO L85 PathProgramCache]: Analyzing trace with hash -413904667, now seen corresponding path program 1 times [2022-11-02 20:36:42,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:42,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965656882] [2022-11-02 20:36:42,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:42,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:43,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:43,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965656882] [2022-11-02 20:36:43,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965656882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:43,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:43,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:36:43,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276098054] [2022-11-02 20:36:43,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:43,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:43,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:43,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:43,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:43,762 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-02 20:36:43,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 244 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:43,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:43,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-02 20:36:43,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:44,856 INFO L130 PetriNetUnfolder]: 850/2460 cut-off events. [2022-11-02 20:36:44,856 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-02 20:36:44,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3982 conditions, 2460 events. 850/2460 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 16820 event pairs, 849 based on Foata normal form. 36/2315 useless extension candidates. Maximal degree in co-relation 3619. Up to 1499 conditions per place. [2022-11-02 20:36:44,879 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-02 20:36:44,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-02 20:36:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:36:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-02 20:36:44,905 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-02 20:36:44,906 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-02 20:36:44,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-02 20:36:44,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:44,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-02 20:36:44,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:44,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:44,932 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:44,934 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-02 20:36:44,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-02 20:36:44,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:36:44,950 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-02 20:36:44,953 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=231, PETRI_TRANSITIONS=208} [2022-11-02 20:36:44,957 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-02 20:36:44,958 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-02 20:36:44,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:44,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:44,960 INFO L208 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] [2022-11-02 20:36:44,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:36:44,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:44,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1022033083, now seen corresponding path program 1 times [2022-11-02 20:36:44,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:44,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177230824] [2022-11-02 20:36:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:44,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:45,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:45,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177230824] [2022-11-02 20:36:45,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177230824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:45,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:45,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:36:45,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412253821] [2022-11-02 20:36:45,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:45,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:45,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:45,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:45,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:45,597 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-02 20:36:45,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 208 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:45,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:45,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-02 20:36:45,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:46,377 INFO L130 PetriNetUnfolder]: 826/2178 cut-off events. [2022-11-02 20:36:46,377 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:36:46,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3652 conditions, 2178 events. 826/2178 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 14501 event pairs, 825 based on Foata normal form. 0/2034 useless extension candidates. Maximal degree in co-relation 3590. Up to 1457 conditions per place. [2022-11-02 20:36:46,392 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-02 20:36:46,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-02 20:36:46,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:46,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:36:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-02 20:36:46,395 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-02 20:36:46,396 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-02 20:36:46,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-02 20:36:46,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:46,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-02 20:36:46,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:46,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:46,404 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:46,404 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-02 20:36:46,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-02 20:36:46,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:36:46,411 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-02 20:36:46,411 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-02 20:36:46,412 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-02 20:36:46,412 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-02 20:36:46,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:46,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:46,414 INFO L208 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] [2022-11-02 20:36:46,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:36:46,414 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:46,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:46,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1828756419, now seen corresponding path program 1 times [2022-11-02 20:36:46,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:46,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81313433] [2022-11-02 20:36:46,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:46,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:46,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:46,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81313433] [2022-11-02 20:36:46,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81313433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:46,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:46,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:36:46,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953742436] [2022-11-02 20:36:46,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:46,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:46,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:46,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:46,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:46,974 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-02 20:36:46,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:46,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:46,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-02 20:36:46,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:48,132 INFO L130 PetriNetUnfolder]: 1102/2630 cut-off events. [2022-11-02 20:36:48,133 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:36:48,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4569 conditions, 2630 events. 1102/2630 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 17548 event pairs, 903 based on Foata normal form. 0/2486 useless extension candidates. Maximal degree in co-relation 4496. Up to 1827 conditions per place. [2022-11-02 20:36:48,151 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-02 20:36:48,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-02 20:36:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:48,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:36:48,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-02 20:36:48,155 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-02 20:36:48,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-02 20:36:48,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-02 20:36:48,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:48,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-02 20:36:48,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,163 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,163 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-02 20:36:48,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-02 20:36:48,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:36:48,170 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-02 20:36:48,170 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=218, PETRI_TRANSITIONS=236} [2022-11-02 20:36:48,171 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-02 20:36:48,171 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-02 20:36:48,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:48,173 INFO L208 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] [2022-11-02 20:36:48,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:36:48,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:48,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:48,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1585514794, now seen corresponding path program 1 times [2022-11-02 20:36:48,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:48,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700062354] [2022-11-02 20:36:48,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:48,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:48,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:48,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700062354] [2022-11-02 20:36:48,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700062354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:48,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:48,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:36:48,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114680260] [2022-11-02 20:36:48,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:48,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:36:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:36:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:36:48,342 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-02 20:36:48,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 236 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:48,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-02 20:36:48,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:48,825 INFO L130 PetriNetUnfolder]: 533/2101 cut-off events. [2022-11-02 20:36:48,826 INFO L131 PetriNetUnfolder]: For 561/621 co-relation queries the response was YES. [2022-11-02 20:36:48,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3827 conditions, 2101 events. 533/2101 cut-off events. For 561/621 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 14635 event pairs, 348 based on Foata normal form. 0/1987 useless extension candidates. Maximal degree in co-relation 2605. Up to 738 conditions per place. [2022-11-02 20:36:48,844 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-02 20:36:48,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-02 20:36:48,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:36:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-02 20:36:48,848 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-02 20:36:48,848 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-02 20:36:48,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-02 20:36:48,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:48,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-02 20:36:48,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,883 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-02 20:36:48,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-02 20:36:48,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:36:48,892 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-02 20:36:48,892 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=227, PETRI_TRANSITIONS=239} [2022-11-02 20:36:48,893 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-02 20:36:48,893 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-02 20:36:48,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:48,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:48,894 INFO L208 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] [2022-11-02 20:36:48,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:36:48,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:48,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash 523906389, now seen corresponding path program 1 times [2022-11-02 20:36:48,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:48,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676587896] [2022-11-02 20:36:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:48,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:49,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:49,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676587896] [2022-11-02 20:36:49,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676587896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:49,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:49,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:36:49,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992693124] [2022-11-02 20:36:49,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:49,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:49,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:49,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:49,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:49,401 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-02 20:36:49,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 239 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:49,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:49,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-02 20:36:49,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:50,623 INFO L130 PetriNetUnfolder]: 1233/2864 cut-off events. [2022-11-02 20:36:50,624 INFO L131 PetriNetUnfolder]: For 929/977 co-relation queries the response was YES. [2022-11-02 20:36:50,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6727 conditions, 2864 events. 1233/2864 cut-off events. For 929/977 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 18587 event pairs, 837 based on Foata normal form. 0/2749 useless extension candidates. Maximal degree in co-relation 6624. Up to 2032 conditions per place. [2022-11-02 20:36:50,654 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-02 20:36:50,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-02 20:36:50,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:36:50,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-02 20:36:50,658 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-02 20:36:50,658 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-02 20:36:50,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-02 20:36:50,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:50,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-02 20:36:50,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:50,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:50,667 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:50,667 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-02 20:36:50,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-02 20:36:50,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:36:50,682 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-02 20:36:50,683 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=236, PETRI_TRANSITIONS=268} [2022-11-02 20:36:50,685 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-02 20:36:50,686 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-02 20:36:50,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:50,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:50,687 INFO L208 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] [2022-11-02 20:36:50,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:36:50,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:50,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:50,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1879858362, now seen corresponding path program 1 times [2022-11-02 20:36:50,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:50,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322531690] [2022-11-02 20:36:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:50,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:51,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:51,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:51,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322531690] [2022-11-02 20:36:51,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322531690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:51,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:51,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:36:51,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390177540] [2022-11-02 20:36:51,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:51,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:51,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:51,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:51,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:51,260 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-02 20:36:51,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 268 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:51,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:51,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-02 20:36:51,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:52,583 INFO L130 PetriNetUnfolder]: 1434/3383 cut-off events. [2022-11-02 20:36:52,584 INFO L131 PetriNetUnfolder]: For 2465/2577 co-relation queries the response was YES. [2022-11-02 20:36:52,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9544 conditions, 3383 events. 1434/3383 cut-off events. For 2465/2577 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 22164 event pairs, 638 based on Foata normal form. 0/3285 useless extension candidates. Maximal degree in co-relation 8176. Up to 2134 conditions per place. [2022-11-02 20:36:52,617 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 146 selfloop transitions, 26 changer transitions 0/303 dead transitions. [2022-11-02 20:36:52,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 303 transitions, 1412 flow [2022-11-02 20:36:52,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:52,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:36:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-02 20:36:52,621 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-02 20:36:52,621 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-02 20:36:52,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-02 20:36:52,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:52,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-02 20:36:52,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:52,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:52,629 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:52,629 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 976 transitions. [2022-11-02 20:36:52,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 303 transitions, 1412 flow [2022-11-02 20:36:52,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 303 transitions, 1364 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-02 20:36:52,643 INFO L231 Difference]: Finished difference. Result has 245 places, 288 transitions, 1082 flow [2022-11-02 20:36:52,644 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1082, PETRI_PLACES=245, PETRI_TRANSITIONS=288} [2022-11-02 20:36:52,645 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 0 predicate places. [2022-11-02 20:36:52,645 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 288 transitions, 1082 flow [2022-11-02 20:36:52,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:52,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:52,646 INFO L208 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] [2022-11-02 20:36:52,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:36:52,646 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:52,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:52,647 INFO L85 PathProgramCache]: Analyzing trace with hash 148556689, now seen corresponding path program 1 times [2022-11-02 20:36:52,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:52,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873159786] [2022-11-02 20:36:52,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:52,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:53,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:53,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873159786] [2022-11-02 20:36:53,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873159786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:53,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:53,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:36:53,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637995819] [2022-11-02 20:36:53,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:53,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:36:53,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:53,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:36:53,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:36:53,284 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-02 20:36:53,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 288 transitions, 1082 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:53,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:53,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-02 20:36:53,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:54,673 INFO L130 PetriNetUnfolder]: 1431/3530 cut-off events. [2022-11-02 20:36:54,673 INFO L131 PetriNetUnfolder]: For 4176/4328 co-relation queries the response was YES. [2022-11-02 20:36:54,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10875 conditions, 3530 events. 1431/3530 cut-off events. For 4176/4328 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 23718 event pairs, 616 based on Foata normal form. 0/3435 useless extension candidates. Maximal degree in co-relation 8433. Up to 2288 conditions per place. [2022-11-02 20:36:54,715 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 177 selfloop transitions, 22 changer transitions 0/336 dead transitions. [2022-11-02 20:36:54,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 336 transitions, 1730 flow [2022-11-02 20:36:54,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:36:54,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1029 transitions. [2022-11-02 20:36:54,722 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.694331983805668 [2022-11-02 20:36:54,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1029 transitions. [2022-11-02 20:36:54,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1029 transitions. [2022-11-02 20:36:54,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:54,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1029 transitions. [2022-11-02 20:36:54,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:54,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:54,732 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:54,733 INFO L175 Difference]: Start difference. First operand has 245 places, 288 transitions, 1082 flow. Second operand 6 states and 1029 transitions. [2022-11-02 20:36:54,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 336 transitions, 1730 flow [2022-11-02 20:36:54,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 336 transitions, 1730 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:36:54,748 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1336 flow [2022-11-02 20:36:54,749 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=255, PETRI_TRANSITIONS=309} [2022-11-02 20:36:54,750 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-02 20:36:54,750 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1336 flow [2022-11-02 20:36:54,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:54,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:54,751 INFO L208 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] [2022-11-02 20:36:54,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:36:54,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:54,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:54,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1899946451, now seen corresponding path program 1 times [2022-11-02 20:36:54,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:54,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138721299] [2022-11-02 20:36:54,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:54,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:54,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:54,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138721299] [2022-11-02 20:36:54,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138721299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:54,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:54,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:36:54,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722160274] [2022-11-02 20:36:54,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:54,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:36:54,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:36:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:36:54,953 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-02 20:36:54,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 309 transitions, 1336 flow. Second operand has 5 states, 5 states have (on average 207.2) internal successors, (1036), 5 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:54,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:54,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-02 20:36:54,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:36:55,467 INFO L130 PetriNetUnfolder]: 381/1324 cut-off events. [2022-11-02 20:36:55,467 INFO L131 PetriNetUnfolder]: For 2876/3056 co-relation queries the response was YES. [2022-11-02 20:36:55,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3852 conditions, 1324 events. 381/1324 cut-off events. For 2876/3056 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 7545 event pairs, 111 based on Foata normal form. 16/1308 useless extension candidates. Maximal degree in co-relation 3752. Up to 419 conditions per place. [2022-11-02 20:36:55,481 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 65 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-02 20:36:55,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1162 flow [2022-11-02 20:36:55,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:36:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:36:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-02 20:36:55,485 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-02 20:36:55,486 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-02 20:36:55,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-02 20:36:55,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:36:55,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-02 20:36:55,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:55,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:55,499 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:55,499 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1336 flow. Second operand 6 states and 1278 transitions. [2022-11-02 20:36:55,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1162 flow [2022-11-02 20:36:55,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1066 flow, removed 15 selfloop flow, removed 24 redundant places. [2022-11-02 20:36:55,512 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 727 flow [2022-11-02 20:36:55,512 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2022-11-02 20:36:55,515 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-02 20:36:55,515 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 727 flow [2022-11-02 20:36:55,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 207.2) internal successors, (1036), 5 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:55,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:36:55,516 INFO L208 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] [2022-11-02 20:36:55,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:36:55,517 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:36:55,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:36:55,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1486266262, now seen corresponding path program 1 times [2022-11-02 20:36:55,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:36:55,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161091801] [2022-11-02 20:36:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:36:55,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:36:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:36:57,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:36:57,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:36:57,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161091801] [2022-11-02 20:36:57,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161091801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:36:57,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:36:57,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:36:57,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203021410] [2022-11-02 20:36:57,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:36:57,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:36:57,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:36:57,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:36:57,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:36:57,781 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:36:57,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 727 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:36:57,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:36:57,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:36:57,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:02,532 INFO L130 PetriNetUnfolder]: 1512/3516 cut-off events. [2022-11-02 20:37:02,532 INFO L131 PetriNetUnfolder]: For 5723/5723 co-relation queries the response was YES. [2022-11-02 20:37:02,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10862 conditions, 3516 events. 1512/3516 cut-off events. For 5723/5723 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 22386 event pairs, 708 based on Foata normal form. 8/3442 useless extension candidates. Maximal degree in co-relation 10581. Up to 1690 conditions per place. [2022-11-02 20:37:02,565 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 225 selfloop transitions, 107 changer transitions 0/443 dead transitions. [2022-11-02 20:37:02,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 443 transitions, 2439 flow [2022-11-02 20:37:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-02 20:37:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-02 20:37:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3876 transitions. [2022-11-02 20:37:02,575 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5604395604395604 [2022-11-02 20:37:02,575 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3876 transitions. [2022-11-02 20:37:02,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3876 transitions. [2022-11-02 20:37:02,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:02,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3876 transitions. [2022-11-02 20:37:02,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 138.42857142857142) internal successors, (3876), 28 states have internal predecessors, (3876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:02,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 247.0) internal successors, (7163), 29 states have internal predecessors, (7163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:02,602 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 247.0) internal successors, (7163), 29 states have internal predecessors, (7163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:02,603 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 727 flow. Second operand 28 states and 3876 transitions. [2022-11-02 20:37:02,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 443 transitions, 2439 flow [2022-11-02 20:37:02,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 443 transitions, 2411 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-02 20:37:02,628 INFO L231 Difference]: Finished difference. Result has 270 places, 309 transitions, 1716 flow [2022-11-02 20:37:02,629 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1716, PETRI_PLACES=270, PETRI_TRANSITIONS=309} [2022-11-02 20:37:02,630 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 25 predicate places. [2022-11-02 20:37:02,630 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 309 transitions, 1716 flow [2022-11-02 20:37:02,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:02,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:02,631 INFO L208 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] [2022-11-02 20:37:02,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:37:02,632 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:02,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:02,632 INFO L85 PathProgramCache]: Analyzing trace with hash -835602740, now seen corresponding path program 2 times [2022-11-02 20:37:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:02,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529520626] [2022-11-02 20:37:02,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:02,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:05,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:05,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529520626] [2022-11-02 20:37:05,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529520626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:05,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:05,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:05,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296633890] [2022-11-02 20:37:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:05,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:05,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:05,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:05,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:05,713 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:05,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 309 transitions, 1716 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:05,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:05,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:05,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:08,830 INFO L130 PetriNetUnfolder]: 1628/3288 cut-off events. [2022-11-02 20:37:08,830 INFO L131 PetriNetUnfolder]: For 12052/12136 co-relation queries the response was YES. [2022-11-02 20:37:08,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13722 conditions, 3288 events. 1628/3288 cut-off events. For 12052/12136 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 19423 event pairs, 123 based on Foata normal form. 8/3233 useless extension candidates. Maximal degree in co-relation 13430. Up to 1349 conditions per place. [2022-11-02 20:37:08,864 INFO L137 encePairwiseOnDemand]: 228/247 looper letters, 361 selfloop transitions, 96 changer transitions 0/568 dead transitions. [2022-11-02 20:37:08,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 568 transitions, 4427 flow [2022-11-02 20:37:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:37:08,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:37:08,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-02 20:37:08,872 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-02 20:37:08,872 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-02 20:37:08,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-02 20:37:08,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:08,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-02 20:37:08,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:08,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:08,891 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:08,891 INFO L175 Difference]: Start difference. First operand has 270 places, 309 transitions, 1716 flow. Second operand 20 states and 2821 transitions. [2022-11-02 20:37:08,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 568 transitions, 4427 flow [2022-11-02 20:37:08,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 568 transitions, 4348 flow, removed 34 selfloop flow, removed 6 redundant places. [2022-11-02 20:37:08,947 INFO L231 Difference]: Finished difference. Result has 292 places, 372 transitions, 2728 flow [2022-11-02 20:37:08,948 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2728, PETRI_PLACES=292, PETRI_TRANSITIONS=372} [2022-11-02 20:37:08,948 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 47 predicate places. [2022-11-02 20:37:08,949 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 372 transitions, 2728 flow [2022-11-02 20:37:08,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:08,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:08,950 INFO L208 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] [2022-11-02 20:37:08,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:37:08,950 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:08,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1936868808, now seen corresponding path program 3 times [2022-11-02 20:37:08,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:08,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576628042] [2022-11-02 20:37:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:08,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:11,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:11,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576628042] [2022-11-02 20:37:11,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576628042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:11,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:11,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:11,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571604998] [2022-11-02 20:37:11,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:11,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:11,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:11,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:11,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:11,235 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:11,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 372 transitions, 2728 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:11,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:11,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:11,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:14,512 INFO L130 PetriNetUnfolder]: 1725/3422 cut-off events. [2022-11-02 20:37:14,512 INFO L131 PetriNetUnfolder]: For 23552/23657 co-relation queries the response was YES. [2022-11-02 20:37:14,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17448 conditions, 3422 events. 1725/3422 cut-off events. For 23552/23657 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 20285 event pairs, 99 based on Foata normal form. 8/3364 useless extension candidates. Maximal degree in co-relation 17147. Up to 2107 conditions per place. [2022-11-02 20:37:14,551 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 326 selfloop transitions, 112 changer transitions 0/549 dead transitions. [2022-11-02 20:37:14,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 549 transitions, 4963 flow [2022-11-02 20:37:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:37:14,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-02 20:37:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2414 transitions. [2022-11-02 20:37:14,558 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5748987854251012 [2022-11-02 20:37:14,558 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2414 transitions. [2022-11-02 20:37:14,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2414 transitions. [2022-11-02 20:37:14,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:14,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2414 transitions. [2022-11-02 20:37:14,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 142.0) internal successors, (2414), 17 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) [2022-11-02 20:37:14,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:14,573 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:14,573 INFO L175 Difference]: Start difference. First operand has 292 places, 372 transitions, 2728 flow. Second operand 17 states and 2414 transitions. [2022-11-02 20:37:14,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 549 transitions, 4963 flow [2022-11-02 20:37:14,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 549 transitions, 4822 flow, removed 39 selfloop flow, removed 9 redundant places. [2022-11-02 20:37:14,692 INFO L231 Difference]: Finished difference. Result has 307 places, 426 transitions, 3933 flow [2022-11-02 20:37:14,693 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2625, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3933, PETRI_PLACES=307, PETRI_TRANSITIONS=426} [2022-11-02 20:37:14,694 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 62 predicate places. [2022-11-02 20:37:14,694 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 426 transitions, 3933 flow [2022-11-02 20:37:14,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:14,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:14,695 INFO L208 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] [2022-11-02 20:37:14,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:37:14,695 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:14,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:14,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1696890546, now seen corresponding path program 4 times [2022-11-02 20:37:14,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:14,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110059401] [2022-11-02 20:37:14,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:14,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:17,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:17,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110059401] [2022-11-02 20:37:17,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110059401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:17,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:17,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345139881] [2022-11-02 20:37:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:17,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:17,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:17,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:17,073 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:17,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 426 transitions, 3933 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:17,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:17,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:17,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:20,767 INFO L130 PetriNetUnfolder]: 2005/4224 cut-off events. [2022-11-02 20:37:20,767 INFO L131 PetriNetUnfolder]: For 38213/38517 co-relation queries the response was YES. [2022-11-02 20:37:20,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22922 conditions, 4224 events. 2005/4224 cut-off events. For 38213/38517 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 26826 event pairs, 469 based on Foata normal form. 8/4134 useless extension candidates. Maximal degree in co-relation 22613. Up to 1863 conditions per place. [2022-11-02 20:37:20,823 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 391 selfloop transitions, 170 changer transitions 0/672 dead transitions. [2022-11-02 20:37:20,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 672 transitions, 7645 flow [2022-11-02 20:37:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:37:20,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:37:20,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-02 20:37:20,829 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-02 20:37:20,829 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-02 20:37:20,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-02 20:37:20,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:20,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-02 20:37:20,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:20,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:20,845 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:20,846 INFO L175 Difference]: Start difference. First operand has 307 places, 426 transitions, 3933 flow. Second operand 20 states and 2823 transitions. [2022-11-02 20:37:20,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 672 transitions, 7645 flow [2022-11-02 20:37:21,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 672 transitions, 7488 flow, removed 63 selfloop flow, removed 9 redundant places. [2022-11-02 20:37:21,012 INFO L231 Difference]: Finished difference. Result has 324 places, 499 transitions, 5845 flow [2022-11-02 20:37:21,013 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3796, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5845, PETRI_PLACES=324, PETRI_TRANSITIONS=499} [2022-11-02 20:37:21,014 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 79 predicate places. [2022-11-02 20:37:21,014 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 499 transitions, 5845 flow [2022-11-02 20:37:21,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:21,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:21,015 INFO L208 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] [2022-11-02 20:37:21,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:37:21,015 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:21,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1167389018, now seen corresponding path program 5 times [2022-11-02 20:37:21,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:21,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195038830] [2022-11-02 20:37:21,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:21,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:23,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:23,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:23,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195038830] [2022-11-02 20:37:23,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195038830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:23,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:23,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:23,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525374653] [2022-11-02 20:37:23,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:23,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:23,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:23,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:23,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:23,006 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:23,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 499 transitions, 5845 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:23,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:23,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:23,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:27,013 INFO L130 PetriNetUnfolder]: 2164/4608 cut-off events. [2022-11-02 20:37:27,013 INFO L131 PetriNetUnfolder]: For 62813/62897 co-relation queries the response was YES. [2022-11-02 20:37:27,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28520 conditions, 4608 events. 2164/4608 cut-off events. For 62813/62897 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30141 event pairs, 692 based on Foata normal form. 8/4530 useless extension candidates. Maximal degree in co-relation 28205. Up to 2493 conditions per place. [2022-11-02 20:37:27,053 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 367 selfloop transitions, 200 changer transitions 0/678 dead transitions. [2022-11-02 20:37:27,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 678 transitions, 8747 flow [2022-11-02 20:37:27,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:37:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 20:37:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2553 transitions. [2022-11-02 20:37:27,058 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5742240215924427 [2022-11-02 20:37:27,059 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2553 transitions. [2022-11-02 20:37:27,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2553 transitions. [2022-11-02 20:37:27,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:27,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2553 transitions. [2022-11-02 20:37:27,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.83333333333334) internal successors, (2553), 18 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:27,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:27,072 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:27,072 INFO L175 Difference]: Start difference. First operand has 324 places, 499 transitions, 5845 flow. Second operand 18 states and 2553 transitions. [2022-11-02 20:37:27,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 678 transitions, 8747 flow [2022-11-02 20:37:27,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 678 transitions, 8432 flow, removed 101 selfloop flow, removed 12 redundant places. [2022-11-02 20:37:27,326 INFO L231 Difference]: Finished difference. Result has 334 places, 543 transitions, 7307 flow [2022-11-02 20:37:27,327 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=5579, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7307, PETRI_PLACES=334, PETRI_TRANSITIONS=543} [2022-11-02 20:37:27,328 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 89 predicate places. [2022-11-02 20:37:27,329 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 543 transitions, 7307 flow [2022-11-02 20:37:27,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:27,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:27,330 INFO L208 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] [2022-11-02 20:37:27,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:37:27,330 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:27,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:27,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1228355224, now seen corresponding path program 6 times [2022-11-02 20:37:27,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:27,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576363853] [2022-11-02 20:37:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:27,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:29,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:29,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576363853] [2022-11-02 20:37:29,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576363853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:29,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:29,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:29,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276214816] [2022-11-02 20:37:29,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:29,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:29,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:29,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:29,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:29,502 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:29,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 543 transitions, 7307 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:29,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:29,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:29,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:33,214 INFO L130 PetriNetUnfolder]: 2238/4591 cut-off events. [2022-11-02 20:37:33,214 INFO L131 PetriNetUnfolder]: For 79829/80237 co-relation queries the response was YES. [2022-11-02 20:37:33,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30960 conditions, 4591 events. 2238/4591 cut-off events. For 79829/80237 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 29388 event pairs, 495 based on Foata normal form. 8/4506 useless extension candidates. Maximal degree in co-relation 30640. Up to 2136 conditions per place. [2022-11-02 20:37:33,272 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 433 selfloop transitions, 207 changer transitions 0/751 dead transitions. [2022-11-02 20:37:33,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 751 transitions, 10954 flow [2022-11-02 20:37:33,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:37:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:37:33,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2823 transitions. [2022-11-02 20:37:33,279 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5714574898785425 [2022-11-02 20:37:33,280 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2823 transitions. [2022-11-02 20:37:33,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2823 transitions. [2022-11-02 20:37:33,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:33,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2823 transitions. [2022-11-02 20:37:33,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.15) internal successors, (2823), 20 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:33,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:33,301 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:33,301 INFO L175 Difference]: Start difference. First operand has 334 places, 543 transitions, 7307 flow. Second operand 20 states and 2823 transitions. [2022-11-02 20:37:33,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 751 transitions, 10954 flow [2022-11-02 20:37:33,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 751 transitions, 10682 flow, removed 85 selfloop flow, removed 10 redundant places. [2022-11-02 20:37:33,655 INFO L231 Difference]: Finished difference. Result has 349 places, 575 transitions, 8420 flow [2022-11-02 20:37:33,656 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=7101, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8420, PETRI_PLACES=349, PETRI_TRANSITIONS=575} [2022-11-02 20:37:33,656 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 104 predicate places. [2022-11-02 20:37:33,657 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 575 transitions, 8420 flow [2022-11-02 20:37:33,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:33,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:33,658 INFO L208 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] [2022-11-02 20:37:33,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:37:33,658 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:33,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:33,659 INFO L85 PathProgramCache]: Analyzing trace with hash 55440128, now seen corresponding path program 7 times [2022-11-02 20:37:33,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:33,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432440085] [2022-11-02 20:37:33,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:33,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:35,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:35,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432440085] [2022-11-02 20:37:35,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432440085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:35,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:35,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:35,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007212938] [2022-11-02 20:37:35,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:35,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:35,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:35,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:35,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:35,626 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:35,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 575 transitions, 8420 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:35,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:35,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:35,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:39,472 INFO L130 PetriNetUnfolder]: 2462/5186 cut-off events. [2022-11-02 20:37:39,472 INFO L131 PetriNetUnfolder]: For 96041/96125 co-relation queries the response was YES. [2022-11-02 20:37:39,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36861 conditions, 5186 events. 2462/5186 cut-off events. For 96041/96125 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 34806 event pairs, 730 based on Foata normal form. 8/5108 useless extension candidates. Maximal degree in co-relation 36535. Up to 2775 conditions per place. [2022-11-02 20:37:39,530 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 398 selfloop transitions, 270 changer transitions 0/779 dead transitions. [2022-11-02 20:37:39,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 779 transitions, 12540 flow [2022-11-02 20:37:39,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:37:39,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 20:37:39,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2552 transitions. [2022-11-02 20:37:39,537 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5739991003148898 [2022-11-02 20:37:39,537 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2552 transitions. [2022-11-02 20:37:39,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2552 transitions. [2022-11-02 20:37:39,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:39,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2552 transitions. [2022-11-02 20:37:39,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.77777777777777) internal successors, (2552), 18 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:39,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:39,551 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:39,551 INFO L175 Difference]: Start difference. First operand has 349 places, 575 transitions, 8420 flow. Second operand 18 states and 2552 transitions. [2022-11-02 20:37:39,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 779 transitions, 12540 flow [2022-11-02 20:37:39,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 779 transitions, 12342 flow, removed 39 selfloop flow, removed 12 redundant places. [2022-11-02 20:37:39,910 INFO L231 Difference]: Finished difference. Result has 361 places, 655 transitions, 11409 flow [2022-11-02 20:37:39,910 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8240, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11409, PETRI_PLACES=361, PETRI_TRANSITIONS=655} [2022-11-02 20:37:39,910 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 116 predicate places. [2022-11-02 20:37:39,911 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 655 transitions, 11409 flow [2022-11-02 20:37:39,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:39,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:39,911 INFO L208 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] [2022-11-02 20:37:39,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:37:39,911 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:39,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash 122936360, now seen corresponding path program 8 times [2022-11-02 20:37:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:39,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027706408] [2022-11-02 20:37:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:39,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:41,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:41,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027706408] [2022-11-02 20:37:41,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027706408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:41,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:41,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:41,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771946588] [2022-11-02 20:37:41,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:41,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:41,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:41,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:41,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:41,682 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:41,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 655 transitions, 11409 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:41,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:41,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:41,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:45,776 INFO L130 PetriNetUnfolder]: 2508/5077 cut-off events. [2022-11-02 20:37:45,776 INFO L131 PetriNetUnfolder]: For 120441/120567 co-relation queries the response was YES. [2022-11-02 20:37:45,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39957 conditions, 5077 events. 2508/5077 cut-off events. For 120441/120567 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 33211 event pairs, 274 based on Foata normal form. 8/5003 useless extension candidates. Maximal degree in co-relation 39624. Up to 2486 conditions per place. [2022-11-02 20:37:45,962 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 475 selfloop transitions, 262 changer transitions 0/848 dead transitions. [2022-11-02 20:37:45,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 848 transitions, 15279 flow [2022-11-02 20:37:45,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:37:45,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 20:37:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2686 transitions. [2022-11-02 20:37:45,969 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5723417856381845 [2022-11-02 20:37:45,969 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2686 transitions. [2022-11-02 20:37:45,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2686 transitions. [2022-11-02 20:37:45,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:45,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2686 transitions. [2022-11-02 20:37:45,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.3684210526316) internal successors, (2686), 19 states have internal predecessors, (2686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:45,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:45,983 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:45,984 INFO L175 Difference]: Start difference. First operand has 361 places, 655 transitions, 11409 flow. Second operand 19 states and 2686 transitions. [2022-11-02 20:37:45,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 848 transitions, 15279 flow [2022-11-02 20:37:46,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 848 transitions, 14715 flow, removed 256 selfloop flow, removed 9 redundant places. [2022-11-02 20:37:46,478 INFO L231 Difference]: Finished difference. Result has 375 places, 674 transitions, 12452 flow [2022-11-02 20:37:46,479 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=10982, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12452, PETRI_PLACES=375, PETRI_TRANSITIONS=674} [2022-11-02 20:37:46,479 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 130 predicate places. [2022-11-02 20:37:46,479 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 674 transitions, 12452 flow [2022-11-02 20:37:46,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:46,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:46,481 INFO L208 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] [2022-11-02 20:37:46,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:37:46,481 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:46,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1031504102, now seen corresponding path program 9 times [2022-11-02 20:37:46,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:46,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035754335] [2022-11-02 20:37:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:46,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:48,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:48,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035754335] [2022-11-02 20:37:48,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035754335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:48,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:48,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:48,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897341298] [2022-11-02 20:37:48,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:48,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:48,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:48,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:48,428 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:48,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 674 transitions, 12452 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:48,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:48,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:48,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:52,775 INFO L130 PetriNetUnfolder]: 2746/5382 cut-off events. [2022-11-02 20:37:52,775 INFO L131 PetriNetUnfolder]: For 142754/142838 co-relation queries the response was YES. [2022-11-02 20:37:52,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45718 conditions, 5382 events. 2746/5382 cut-off events. For 142754/142838 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35124 event pairs, 246 based on Foata normal form. 8/5318 useless extension candidates. Maximal degree in co-relation 45380. Up to 3188 conditions per place. [2022-11-02 20:37:52,841 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 479 selfloop transitions, 293 changer transitions 0/883 dead transitions. [2022-11-02 20:37:52,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 883 transitions, 17037 flow [2022-11-02 20:37:52,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:37:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 20:37:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2551 transitions. [2022-11-02 20:37:52,846 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.573774179037337 [2022-11-02 20:37:52,846 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2551 transitions. [2022-11-02 20:37:52,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2551 transitions. [2022-11-02 20:37:52,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:52,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2551 transitions. [2022-11-02 20:37:52,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 141.72222222222223) internal successors, (2551), 18 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:52,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:52,857 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:52,858 INFO L175 Difference]: Start difference. First operand has 375 places, 674 transitions, 12452 flow. Second operand 18 states and 2551 transitions. [2022-11-02 20:37:52,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 883 transitions, 17037 flow [2022-11-02 20:37:53,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 883 transitions, 16833 flow, removed 40 selfloop flow, removed 12 redundant places. [2022-11-02 20:37:53,401 INFO L231 Difference]: Finished difference. Result has 387 places, 740 transitions, 15448 flow [2022-11-02 20:37:53,402 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=12254, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15448, PETRI_PLACES=387, PETRI_TRANSITIONS=740} [2022-11-02 20:37:53,402 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 142 predicate places. [2022-11-02 20:37:53,402 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 740 transitions, 15448 flow [2022-11-02 20:37:53,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:53,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:53,403 INFO L208 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] [2022-11-02 20:37:53,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:37:53,403 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:37:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1635161404, now seen corresponding path program 10 times [2022-11-02 20:37:53,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:53,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085972717] [2022-11-02 20:37:53,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:53,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:55,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:55,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:55,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085972717] [2022-11-02 20:37:55,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085972717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:55,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:55,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:37:55,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016263583] [2022-11-02 20:37:55,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:55,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:37:55,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:55,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:37:55,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:37:55,142 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:37:55,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 740 transitions, 15448 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:55,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:55,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:37:55,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:38:00,257 INFO L130 PetriNetUnfolder]: 2954/5719 cut-off events. [2022-11-02 20:38:00,258 INFO L131 PetriNetUnfolder]: For 187798/187903 co-relation queries the response was YES. [2022-11-02 20:38:00,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52734 conditions, 5719 events. 2954/5719 cut-off events. For 187798/187903 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 37831 event pairs, 225 based on Foata normal form. 8/5661 useless extension candidates. Maximal degree in co-relation 52389. Up to 3015 conditions per place. [2022-11-02 20:38:00,341 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 439 selfloop transitions, 425 changer transitions 0/975 dead transitions. [2022-11-02 20:38:00,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 975 transitions, 21235 flow [2022-11-02 20:38:00,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:38:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:38:00,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2814 transitions. [2022-11-02 20:38:00,346 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5696356275303643 [2022-11-02 20:38:00,346 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2814 transitions. [2022-11-02 20:38:00,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2814 transitions. [2022-11-02 20:38:00,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:00,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2814 transitions. [2022-11-02 20:38:00,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.7) internal successors, (2814), 20 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:00,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:00,358 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:00,359 INFO L175 Difference]: Start difference. First operand has 387 places, 740 transitions, 15448 flow. Second operand 20 states and 2814 transitions. [2022-11-02 20:38:00,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 975 transitions, 21235 flow [2022-11-02 20:38:01,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 975 transitions, 21078 flow, removed 50 selfloop flow, removed 10 redundant places. [2022-11-02 20:38:01,135 INFO L231 Difference]: Finished difference. Result has 406 places, 843 transitions, 19876 flow [2022-11-02 20:38:01,135 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=15318, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19876, PETRI_PLACES=406, PETRI_TRANSITIONS=843} [2022-11-02 20:38:01,136 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 161 predicate places. [2022-11-02 20:38:01,136 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 843 transitions, 19876 flow [2022-11-02 20:38:01,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:01,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:01,137 INFO L208 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] [2022-11-02 20:38:01,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:38:01,137 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:38:01,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1717714866, now seen corresponding path program 11 times [2022-11-02 20:38:01,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:01,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055582574] [2022-11-02 20:38:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:01,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:02,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:02,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055582574] [2022-11-02 20:38:02,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055582574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:02,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:02,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:38:02,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540599981] [2022-11-02 20:38:02,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:02,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:38:02,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:02,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:38:02,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:38:02,499 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:38:02,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 843 transitions, 19876 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:02,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:02,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:38:02,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:38:07,585 INFO L130 PetriNetUnfolder]: 2958/5935 cut-off events. [2022-11-02 20:38:07,585 INFO L131 PetriNetUnfolder]: For 211582/211708 co-relation queries the response was YES. [2022-11-02 20:38:07,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56690 conditions, 5935 events. 2958/5935 cut-off events. For 211582/211708 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 40241 event pairs, 293 based on Foata normal form. 8/5861 useless extension candidates. Maximal degree in co-relation 56335. Up to 2975 conditions per place. [2022-11-02 20:38:07,672 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 569 selfloop transitions, 337 changer transitions 0/1017 dead transitions. [2022-11-02 20:38:07,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1017 transitions, 23549 flow [2022-11-02 20:38:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:38:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:38:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2821 transitions. [2022-11-02 20:38:07,676 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5710526315789474 [2022-11-02 20:38:07,677 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2821 transitions. [2022-11-02 20:38:07,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2821 transitions. [2022-11-02 20:38:07,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:07,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2821 transitions. [2022-11-02 20:38:07,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.05) internal successors, (2821), 20 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:07,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:07,689 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:07,690 INFO L175 Difference]: Start difference. First operand has 406 places, 843 transitions, 19876 flow. Second operand 20 states and 2821 transitions. [2022-11-02 20:38:07,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1017 transitions, 23549 flow [2022-11-02 20:38:08,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1017 transitions, 22977 flow, removed 273 selfloop flow, removed 8 redundant places. [2022-11-02 20:38:08,655 INFO L231 Difference]: Finished difference. Result has 421 places, 861 transitions, 20814 flow [2022-11-02 20:38:08,656 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=19324, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=843, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20814, PETRI_PLACES=421, PETRI_TRANSITIONS=861} [2022-11-02 20:38:08,656 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 176 predicate places. [2022-11-02 20:38:08,656 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 861 transitions, 20814 flow [2022-11-02 20:38:08,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:08,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:08,657 INFO L208 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] [2022-11-02 20:38:08,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:38:08,657 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:38:08,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:08,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1489991590, now seen corresponding path program 12 times [2022-11-02 20:38:08,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:08,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94309210] [2022-11-02 20:38:08,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:08,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:10,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:10,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:10,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94309210] [2022-11-02 20:38:10,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94309210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:10,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:10,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:38:10,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525676810] [2022-11-02 20:38:10,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:10,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:38:10,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:10,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:38:10,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:38:10,263 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:38:10,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 861 transitions, 20814 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:10,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:10,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:38:10,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:38:16,378 INFO L130 PetriNetUnfolder]: 3061/6330 cut-off events. [2022-11-02 20:38:16,378 INFO L131 PetriNetUnfolder]: For 228137/228263 co-relation queries the response was YES. [2022-11-02 20:38:16,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60531 conditions, 6330 events. 3061/6330 cut-off events. For 228137/228263 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 44120 event pairs, 723 based on Foata normal form. 8/6249 useless extension candidates. Maximal degree in co-relation 60172. Up to 3548 conditions per place. [2022-11-02 20:38:16,481 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 567 selfloop transitions, 358 changer transitions 0/1036 dead transitions. [2022-11-02 20:38:16,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 1036 transitions, 24935 flow [2022-11-02 20:38:16,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:38:16,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:38:16,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-02 20:38:16,485 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-02 20:38:16,485 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-02 20:38:16,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-02 20:38:16,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:16,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-02 20:38:16,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:16,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:16,496 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:16,496 INFO L175 Difference]: Start difference. First operand has 421 places, 861 transitions, 20814 flow. Second operand 20 states and 2818 transitions. [2022-11-02 20:38:16,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 1036 transitions, 24935 flow [2022-11-02 20:38:17,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 1036 transitions, 24746 flow, removed 35 selfloop flow, removed 13 redundant places. [2022-11-02 20:38:17,713 INFO L231 Difference]: Finished difference. Result has 434 places, 900 transitions, 23424 flow [2022-11-02 20:38:17,714 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=20625, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=861, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=23424, PETRI_PLACES=434, PETRI_TRANSITIONS=900} [2022-11-02 20:38:17,714 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 189 predicate places. [2022-11-02 20:38:17,715 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 900 transitions, 23424 flow [2022-11-02 20:38:17,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:17,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:17,715 INFO L208 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] [2022-11-02 20:38:17,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:38:17,715 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:38:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:17,716 INFO L85 PathProgramCache]: Analyzing trace with hash 727429124, now seen corresponding path program 13 times [2022-11-02 20:38:17,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:17,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584535985] [2022-11-02 20:38:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:17,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:19,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:19,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584535985] [2022-11-02 20:38:19,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584535985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:19,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:19,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:38:19,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645505952] [2022-11-02 20:38:19,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:19,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:38:19,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:19,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:38:19,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:38:19,534 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:38:19,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 900 transitions, 23424 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:19,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:19,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:38:19,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:38:24,765 INFO L130 PetriNetUnfolder]: 3228/6257 cut-off events. [2022-11-02 20:38:24,765 INFO L131 PetriNetUnfolder]: For 285543/285833 co-relation queries the response was YES. [2022-11-02 20:38:24,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67077 conditions, 6257 events. 3228/6257 cut-off events. For 285543/285833 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 42413 event pairs, 243 based on Foata normal form. 11/6227 useless extension candidates. Maximal degree in co-relation 66711. Up to 3614 conditions per place. [2022-11-02 20:38:24,879 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 582 selfloop transitions, 404 changer transitions 0/1097 dead transitions. [2022-11-02 20:38:24,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1097 transitions, 28768 flow [2022-11-02 20:38:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:38:24,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:38:24,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2818 transitions. [2022-11-02 20:38:24,884 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5704453441295546 [2022-11-02 20:38:24,884 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2818 transitions. [2022-11-02 20:38:24,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2818 transitions. [2022-11-02 20:38:24,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:24,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2818 transitions. [2022-11-02 20:38:24,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.9) internal successors, (2818), 20 states have internal predecessors, (2818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:24,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:24,896 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:24,896 INFO L175 Difference]: Start difference. First operand has 434 places, 900 transitions, 23424 flow. Second operand 20 states and 2818 transitions. [2022-11-02 20:38:24,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1097 transitions, 28768 flow [2022-11-02 20:38:26,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 1097 transitions, 28430 flow, removed 110 selfloop flow, removed 12 redundant places. [2022-11-02 20:38:26,598 INFO L231 Difference]: Finished difference. Result has 449 places, 964 transitions, 26846 flow [2022-11-02 20:38:26,599 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=23104, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=26846, PETRI_PLACES=449, PETRI_TRANSITIONS=964} [2022-11-02 20:38:26,600 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 204 predicate places. [2022-11-02 20:38:26,600 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 964 transitions, 26846 flow [2022-11-02 20:38:26,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:26,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:26,601 INFO L208 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] [2022-11-02 20:38:26,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:38:26,602 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:38:26,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:26,602 INFO L85 PathProgramCache]: Analyzing trace with hash -279861176, now seen corresponding path program 14 times [2022-11-02 20:38:26,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:26,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980649648] [2022-11-02 20:38:26,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:26,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:27,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:27,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980649648] [2022-11-02 20:38:27,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980649648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:27,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:27,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:38:27,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18453633] [2022-11-02 20:38:27,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:27,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:38:27,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:27,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:38:27,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:38:27,897 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:38:27,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 964 transitions, 26846 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:27,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:27,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:38:27,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:38:33,477 INFO L130 PetriNetUnfolder]: 3358/6706 cut-off events. [2022-11-02 20:38:33,477 INFO L131 PetriNetUnfolder]: For 329558/329768 co-relation queries the response was YES. [2022-11-02 20:38:33,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73911 conditions, 6706 events. 3358/6706 cut-off events. For 329558/329768 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 46907 event pairs, 517 based on Foata normal form. 10/6664 useless extension candidates. Maximal degree in co-relation 73537. Up to 3900 conditions per place. [2022-11-02 20:38:33,588 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 608 selfloop transitions, 424 changer transitions 0/1143 dead transitions. [2022-11-02 20:38:33,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 1143 transitions, 31948 flow [2022-11-02 20:38:33,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:38:33,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 20:38:33,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2685 transitions. [2022-11-02 20:38:33,593 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5721287023226082 [2022-11-02 20:38:33,593 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2685 transitions. [2022-11-02 20:38:33,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2685 transitions. [2022-11-02 20:38:33,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:33,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2685 transitions. [2022-11-02 20:38:33,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.31578947368422) internal successors, (2685), 19 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:33,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:33,603 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:33,604 INFO L175 Difference]: Start difference. First operand has 449 places, 964 transitions, 26846 flow. Second operand 19 states and 2685 transitions. [2022-11-02 20:38:33,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 1143 transitions, 31948 flow [2022-11-02 20:38:35,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1143 transitions, 31370 flow, removed 271 selfloop flow, removed 9 redundant places. [2022-11-02 20:38:35,621 INFO L231 Difference]: Finished difference. Result has 465 places, 1017 transitions, 30321 flow [2022-11-02 20:38:35,622 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=26410, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=30321, PETRI_PLACES=465, PETRI_TRANSITIONS=1017} [2022-11-02 20:38:35,622 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 220 predicate places. [2022-11-02 20:38:35,623 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 1017 transitions, 30321 flow [2022-11-02 20:38:35,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:35,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:35,624 INFO L208 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] [2022-11-02 20:38:35,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:38:35,624 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:38:35,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1238344260, now seen corresponding path program 15 times [2022-11-02 20:38:35,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:35,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938148156] [2022-11-02 20:38:35,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:35,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:37,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:37,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938148156] [2022-11-02 20:38:37,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938148156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:37,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:37,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:38:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703394999] [2022-11-02 20:38:37,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:37,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:38:37,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:37,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:38:37,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:38:37,149 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:38:37,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 1017 transitions, 30321 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:37,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:37,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:38:37,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:38:42,697 INFO L130 PetriNetUnfolder]: 3404/6792 cut-off events. [2022-11-02 20:38:42,697 INFO L131 PetriNetUnfolder]: For 364567/364772 co-relation queries the response was YES. [2022-11-02 20:38:42,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77393 conditions, 6792 events. 3404/6792 cut-off events. For 364567/364772 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 47639 event pairs, 527 based on Foata normal form. 10/6750 useless extension candidates. Maximal degree in co-relation 77012. Up to 3942 conditions per place. [2022-11-02 20:38:42,825 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 612 selfloop transitions, 438 changer transitions 0/1161 dead transitions. [2022-11-02 20:38:42,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1161 transitions, 34049 flow [2022-11-02 20:38:42,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:38:42,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 20:38:42,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2682 transitions. [2022-11-02 20:38:42,829 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.571489452375879 [2022-11-02 20:38:42,829 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2682 transitions. [2022-11-02 20:38:42,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2682 transitions. [2022-11-02 20:38:42,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:42,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2682 transitions. [2022-11-02 20:38:42,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.1578947368421) internal successors, (2682), 19 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:42,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:42,839 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:42,839 INFO L175 Difference]: Start difference. First operand has 465 places, 1017 transitions, 30321 flow. Second operand 19 states and 2682 transitions. [2022-11-02 20:38:42,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1161 transitions, 34049 flow [2022-11-02 20:38:45,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 1161 transitions, 33769 flow, removed 99 selfloop flow, removed 11 redundant places. [2022-11-02 20:38:45,685 INFO L231 Difference]: Finished difference. Result has 478 places, 1039 transitions, 32524 flow [2022-11-02 20:38:45,686 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=30042, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1017, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=32524, PETRI_PLACES=478, PETRI_TRANSITIONS=1039} [2022-11-02 20:38:45,686 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 233 predicate places. [2022-11-02 20:38:45,687 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 1039 transitions, 32524 flow [2022-11-02 20:38:45,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:45,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:45,687 INFO L208 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] [2022-11-02 20:38:45,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:38:45,688 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:38:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:45,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1517041002, now seen corresponding path program 16 times [2022-11-02 20:38:45,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:45,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787345059] [2022-11-02 20:38:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:45,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:47,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:47,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787345059] [2022-11-02 20:38:47,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787345059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:47,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:47,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:38:47,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691857729] [2022-11-02 20:38:47,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:47,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:38:47,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:47,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:38:47,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:38:47,366 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:38:47,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 1039 transitions, 32524 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:47,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:47,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:38:47,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:38:54,745 INFO L130 PetriNetUnfolder]: 3528/6926 cut-off events. [2022-11-02 20:38:54,745 INFO L131 PetriNetUnfolder]: For 408177/408615 co-relation queries the response was YES. [2022-11-02 20:38:54,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82579 conditions, 6926 events. 3528/6926 cut-off events. For 408177/408615 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 48333 event pairs, 482 based on Foata normal form. 14/6896 useless extension candidates. Maximal degree in co-relation 82192. Up to 3950 conditions per place. [2022-11-02 20:38:54,870 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 613 selfloop transitions, 472 changer transitions 0/1196 dead transitions. [2022-11-02 20:38:54,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 1196 transitions, 36560 flow [2022-11-02 20:38:54,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:38:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:38:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2819 transitions. [2022-11-02 20:38:54,875 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5706477732793522 [2022-11-02 20:38:54,875 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2819 transitions. [2022-11-02 20:38:54,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2819 transitions. [2022-11-02 20:38:54,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:54,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2819 transitions. [2022-11-02 20:38:54,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.95) internal successors, (2819), 20 states have internal predecessors, (2819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:54,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:54,881 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:54,881 INFO L175 Difference]: Start difference. First operand has 478 places, 1039 transitions, 32524 flow. Second operand 20 states and 2819 transitions. [2022-11-02 20:38:54,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 1196 transitions, 36560 flow [2022-11-02 20:38:57,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1196 transitions, 36297 flow, removed 103 selfloop flow, removed 10 redundant places. [2022-11-02 20:38:57,866 INFO L231 Difference]: Finished difference. Result has 491 places, 1066 transitions, 34494 flow [2022-11-02 20:38:57,866 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=32269, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34494, PETRI_PLACES=491, PETRI_TRANSITIONS=1066} [2022-11-02 20:38:57,867 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 246 predicate places. [2022-11-02 20:38:57,867 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 1066 transitions, 34494 flow [2022-11-02 20:38:57,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:57,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:57,867 INFO L208 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] [2022-11-02 20:38:57,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:38:57,868 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:38:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash 350218474, now seen corresponding path program 17 times [2022-11-02 20:38:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:57,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676316103] [2022-11-02 20:38:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:59,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:59,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676316103] [2022-11-02 20:38:59,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676316103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:59,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:59,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:38:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045437434] [2022-11-02 20:38:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:59,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:38:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:38:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:38:59,342 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:38:59,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1066 transitions, 34494 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:59,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:59,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:38:59,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:06,411 INFO L130 PetriNetUnfolder]: 3532/6954 cut-off events. [2022-11-02 20:39:06,411 INFO L131 PetriNetUnfolder]: For 430558/430996 co-relation queries the response was YES. [2022-11-02 20:39:06,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85036 conditions, 6954 events. 3532/6954 cut-off events. For 430558/430996 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 48837 event pairs, 500 based on Foata normal form. 14/6924 useless extension candidates. Maximal degree in co-relation 84645. Up to 4076 conditions per place. [2022-11-02 20:39:06,577 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 637 selfloop transitions, 464 changer transitions 0/1212 dead transitions. [2022-11-02 20:39:06,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1212 transitions, 38228 flow [2022-11-02 20:39:06,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:39:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:39:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2820 transitions. [2022-11-02 20:39:06,582 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5708502024291497 [2022-11-02 20:39:06,583 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2820 transitions. [2022-11-02 20:39:06,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2820 transitions. [2022-11-02 20:39:06,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:06,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2820 transitions. [2022-11-02 20:39:06,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:06,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:06,596 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:06,596 INFO L175 Difference]: Start difference. First operand has 491 places, 1066 transitions, 34494 flow. Second operand 20 states and 2820 transitions. [2022-11-02 20:39:06,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1212 transitions, 38228 flow [2022-11-02 20:39:09,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1212 transitions, 37729 flow, removed 162 selfloop flow, removed 12 redundant places. [2022-11-02 20:39:09,625 INFO L231 Difference]: Finished difference. Result has 502 places, 1086 transitions, 36010 flow [2022-11-02 20:39:09,625 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=34079, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=447, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=36010, PETRI_PLACES=502, PETRI_TRANSITIONS=1086} [2022-11-02 20:39:09,626 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 257 predicate places. [2022-11-02 20:39:09,626 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1086 transitions, 36010 flow [2022-11-02 20:39:09,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:09,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:09,627 INFO L208 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] [2022-11-02 20:39:09,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 20:39:09,627 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:39:09,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:09,627 INFO L85 PathProgramCache]: Analyzing trace with hash -485415990, now seen corresponding path program 18 times [2022-11-02 20:39:09,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:09,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154989822] [2022-11-02 20:39:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:09,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:11,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:11,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154989822] [2022-11-02 20:39:11,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154989822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:11,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:11,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:39:11,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852266355] [2022-11-02 20:39:11,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:11,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:39:11,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:11,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:39:11,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:39:11,237 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:39:11,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1086 transitions, 36010 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:11,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:11,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:39:11,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:18,523 INFO L130 PetriNetUnfolder]: 3606/7080 cut-off events. [2022-11-02 20:39:18,523 INFO L131 PetriNetUnfolder]: For 453320/453758 co-relation queries the response was YES. [2022-11-02 20:39:18,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88814 conditions, 7080 events. 3606/7080 cut-off events. For 453320/453758 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 49825 event pairs, 500 based on Foata normal form. 14/7050 useless extension candidates. Maximal degree in co-relation 88419. Up to 4088 conditions per place. [2022-11-02 20:39:18,654 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 653 selfloop transitions, 482 changer transitions 0/1246 dead transitions. [2022-11-02 20:39:18,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1246 transitions, 40486 flow [2022-11-02 20:39:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:39:18,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:39:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2822 transitions. [2022-11-02 20:39:18,659 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.571255060728745 [2022-11-02 20:39:18,659 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2822 transitions. [2022-11-02 20:39:18,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2822 transitions. [2022-11-02 20:39:18,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:18,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2822 transitions. [2022-11-02 20:39:18,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.1) internal successors, (2822), 20 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:18,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:18,669 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:18,669 INFO L175 Difference]: Start difference. First operand has 502 places, 1086 transitions, 36010 flow. Second operand 20 states and 2822 transitions. [2022-11-02 20:39:18,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1246 transitions, 40486 flow [2022-11-02 20:39:22,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 1246 transitions, 40206 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-02 20:39:22,085 INFO L231 Difference]: Finished difference. Result has 513 places, 1118 transitions, 38344 flow [2022-11-02 20:39:22,086 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=35740, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=453, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=38344, PETRI_PLACES=513, PETRI_TRANSITIONS=1118} [2022-11-02 20:39:22,087 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 268 predicate places. [2022-11-02 20:39:22,087 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 1118 transitions, 38344 flow [2022-11-02 20:39:22,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:22,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:22,088 INFO L208 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] [2022-11-02 20:39:22,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 20:39:22,088 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:39:22,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:22,089 INFO L85 PathProgramCache]: Analyzing trace with hash 386443478, now seen corresponding path program 19 times [2022-11-02 20:39:22,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:22,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810004206] [2022-11-02 20:39:22,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:22,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:23,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:23,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810004206] [2022-11-02 20:39:23,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810004206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:23,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:23,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:39:23,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035406202] [2022-11-02 20:39:23,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:23,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:39:23,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:23,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:39:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:39:23,803 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:39:23,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1118 transitions, 38344 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:23,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:23,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:39:23,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:30,837 INFO L130 PetriNetUnfolder]: 3610/7174 cut-off events. [2022-11-02 20:39:30,838 INFO L131 PetriNetUnfolder]: For 476546/476751 co-relation queries the response was YES. [2022-11-02 20:39:30,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91504 conditions, 7174 events. 3610/7174 cut-off events. For 476546/476751 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 50959 event pairs, 537 based on Foata normal form. 10/7131 useless extension candidates. Maximal degree in co-relation 91104. Up to 4156 conditions per place. [2022-11-02 20:39:30,979 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 661 selfloop transitions, 488 changer transitions 0/1260 dead transitions. [2022-11-02 20:39:30,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1260 transitions, 42224 flow [2022-11-02 20:39:30,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:39:30,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:39:30,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2817 transitions. [2022-11-02 20:39:30,983 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5702429149797571 [2022-11-02 20:39:30,984 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2817 transitions. [2022-11-02 20:39:30,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2817 transitions. [2022-11-02 20:39:30,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:30,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2817 transitions. [2022-11-02 20:39:30,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.85) internal successors, (2817), 20 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:30,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:30,992 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:30,992 INFO L175 Difference]: Start difference. First operand has 513 places, 1118 transitions, 38344 flow. Second operand 20 states and 2817 transitions. [2022-11-02 20:39:30,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1260 transitions, 42224 flow [2022-11-02 20:39:34,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1260 transitions, 41587 flow, removed 225 selfloop flow, removed 12 redundant places. [2022-11-02 20:39:34,091 INFO L231 Difference]: Finished difference. Result has 524 places, 1138 transitions, 39859 flow [2022-11-02 20:39:34,091 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=37815, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=471, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=39859, PETRI_PLACES=524, PETRI_TRANSITIONS=1138} [2022-11-02 20:39:34,092 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 279 predicate places. [2022-11-02 20:39:34,092 INFO L495 AbstractCegarLoop]: Abstraction has has 524 places, 1138 transitions, 39859 flow [2022-11-02 20:39:34,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:34,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:34,093 INFO L208 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] [2022-11-02 20:39:34,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 20:39:34,093 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:39:34,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:34,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1578112080, now seen corresponding path program 20 times [2022-11-02 20:39:34,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:34,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401286435] [2022-11-02 20:39:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:34,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:35,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:35,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401286435] [2022-11-02 20:39:35,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401286435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:35,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:35,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:39:35,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575890252] [2022-11-02 20:39:35,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:35,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:39:35,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:35,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:39:35,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:39:35,608 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:39:35,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1138 transitions, 39859 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:35,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:35,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:39:35,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:44,074 INFO L130 PetriNetUnfolder]: 3810/7476 cut-off events. [2022-11-02 20:39:44,074 INFO L131 PetriNetUnfolder]: For 517937/518375 co-relation queries the response was YES. [2022-11-02 20:39:44,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98248 conditions, 7476 events. 3810/7476 cut-off events. For 517937/518375 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 53421 event pairs, 516 based on Foata normal form. 11/7438 useless extension candidates. Maximal degree in co-relation 97844. Up to 4147 conditions per place. [2022-11-02 20:39:44,299 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 611 selfloop transitions, 608 changer transitions 0/1330 dead transitions. [2022-11-02 20:39:44,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 1330 transitions, 45861 flow [2022-11-02 20:39:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:39:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:39:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2822 transitions. [2022-11-02 20:39:44,305 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.571255060728745 [2022-11-02 20:39:44,305 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2822 transitions. [2022-11-02 20:39:44,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2822 transitions. [2022-11-02 20:39:44,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:44,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2822 transitions. [2022-11-02 20:39:44,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 141.1) internal successors, (2822), 20 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:44,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:44,318 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:44,318 INFO L175 Difference]: Start difference. First operand has 524 places, 1138 transitions, 39859 flow. Second operand 20 states and 2822 transitions. [2022-11-02 20:39:44,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 1330 transitions, 45861 flow [2022-11-02 20:39:47,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 1330 transitions, 45593 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-02 20:39:48,039 INFO L231 Difference]: Finished difference. Result has 539 places, 1212 transitions, 44700 flow [2022-11-02 20:39:48,040 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=39591, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=541, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=44700, PETRI_PLACES=539, PETRI_TRANSITIONS=1212} [2022-11-02 20:39:48,040 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 294 predicate places. [2022-11-02 20:39:48,040 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 1212 transitions, 44700 flow [2022-11-02 20:39:48,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:48,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:48,042 INFO L208 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] [2022-11-02 20:39:48,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-02 20:39:48,042 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:39:48,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash 911936074, now seen corresponding path program 21 times [2022-11-02 20:39:48,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:48,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324400576] [2022-11-02 20:39:48,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:48,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:49,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:49,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324400576] [2022-11-02 20:39:49,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324400576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:49,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:49,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:39:49,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775794638] [2022-11-02 20:39:49,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:49,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:39:49,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:49,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:39:49,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:39:49,394 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:39:49,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 1212 transitions, 44700 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:49,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:49,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:39:49,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:57,170 INFO L130 PetriNetUnfolder]: 3919/7693 cut-off events. [2022-11-02 20:39:57,170 INFO L131 PetriNetUnfolder]: For 592684/593122 co-relation queries the response was YES. [2022-11-02 20:39:57,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104988 conditions, 7693 events. 3919/7693 cut-off events. For 592684/593122 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 55439 event pairs, 492 based on Foata normal form. 11/7656 useless extension candidates. Maximal degree in co-relation 104575. Up to 4249 conditions per place. [2022-11-02 20:39:57,492 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 623 selfloop transitions, 641 changer transitions 0/1375 dead transitions. [2022-11-02 20:39:57,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 1375 transitions, 49861 flow [2022-11-02 20:39:57,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:39:57,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 20:39:57,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2688 transitions. [2022-11-02 20:39:57,519 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5727679522693373 [2022-11-02 20:39:57,519 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2688 transitions. [2022-11-02 20:39:57,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2688 transitions. [2022-11-02 20:39:57,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:57,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2688 transitions. [2022-11-02 20:39:57,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.47368421052633) internal successors, (2688), 19 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:57,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:57,541 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:57,542 INFO L175 Difference]: Start difference. First operand has 539 places, 1212 transitions, 44700 flow. Second operand 19 states and 2688 transitions. [2022-11-02 20:39:57,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 1375 transitions, 49861 flow [2022-11-02 20:40:01,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 1375 transitions, 49245 flow, removed 276 selfloop flow, removed 9 redundant places. [2022-11-02 20:40:01,343 INFO L231 Difference]: Finished difference. Result has 553 places, 1253 transitions, 48045 flow [2022-11-02 20:40:01,344 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=44126, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=602, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=596, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=48045, PETRI_PLACES=553, PETRI_TRANSITIONS=1253} [2022-11-02 20:40:01,345 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 308 predicate places. [2022-11-02 20:40:01,345 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 1253 transitions, 48045 flow [2022-11-02 20:40:01,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:01,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:40:01,346 INFO L208 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] [2022-11-02 20:40:01,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-02 20:40:01,347 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:40:01,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:01,347 INFO L85 PathProgramCache]: Analyzing trace with hash 683815016, now seen corresponding path program 22 times [2022-11-02 20:40:01,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:01,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640713975] [2022-11-02 20:40:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:01,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:02,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:02,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:40:02,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640713975] [2022-11-02 20:40:02,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640713975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:40:02,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:40:02,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:40:02,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063455562] [2022-11-02 20:40:02,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:40:02,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:40:02,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:40:02,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:40:02,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:40:02,710 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:40:02,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 1253 transitions, 48045 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:02,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:40:02,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:40:02,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:40:10,602 INFO L130 PetriNetUnfolder]: 3971/7785 cut-off events. [2022-11-02 20:40:10,602 INFO L131 PetriNetUnfolder]: For 647722/648160 co-relation queries the response was YES. [2022-11-02 20:40:10,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108745 conditions, 7785 events. 3971/7785 cut-off events. For 647722/648160 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 56247 event pairs, 456 based on Foata normal form. 11/7748 useless extension candidates. Maximal degree in co-relation 108327. Up to 4295 conditions per place. [2022-11-02 20:40:10,774 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 624 selfloop transitions, 661 changer transitions 0/1396 dead transitions. [2022-11-02 20:40:10,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 1396 transitions, 52296 flow [2022-11-02 20:40:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:40:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 20:40:10,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2683 transitions. [2022-11-02 20:40:10,778 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5717025356914553 [2022-11-02 20:40:10,778 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2683 transitions. [2022-11-02 20:40:10,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2683 transitions. [2022-11-02 20:40:10,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:40:10,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2683 transitions. [2022-11-02 20:40:10,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.21052631578948) internal successors, (2683), 19 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:10,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:10,784 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:10,785 INFO L175 Difference]: Start difference. First operand has 553 places, 1253 transitions, 48045 flow. Second operand 19 states and 2683 transitions. [2022-11-02 20:40:10,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 1396 transitions, 52296 flow [2022-11-02 20:40:15,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 1396 transitions, 52171 flow, removed 23 selfloop flow, removed 10 redundant places. [2022-11-02 20:40:15,146 INFO L231 Difference]: Finished difference. Result has 565 places, 1276 transitions, 51043 flow [2022-11-02 20:40:15,147 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=47920, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=638, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=51043, PETRI_PLACES=565, PETRI_TRANSITIONS=1276} [2022-11-02 20:40:15,148 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 320 predicate places. [2022-11-02 20:40:15,148 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 1276 transitions, 51043 flow [2022-11-02 20:40:15,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:15,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:40:15,149 INFO L208 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] [2022-11-02 20:40:15,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-02 20:40:15,149 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:40:15,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:15,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1721015880, now seen corresponding path program 23 times [2022-11-02 20:40:15,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:15,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352774347] [2022-11-02 20:40:15,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:15,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:16,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:40:16,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352774347] [2022-11-02 20:40:16,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352774347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:40:16,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:40:16,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:40:16,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964174140] [2022-11-02 20:40:16,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:40:16,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:40:16,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:40:16,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:40:16,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:40:16,696 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:40:16,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 1276 transitions, 51043 flow. Second operand has 18 states, 18 states have (on average 129.33333333333334) internal successors, (2328), 18 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:16,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:40:16,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:40:16,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand