./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/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_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/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_0a1820c3-62aa-4578-8446-dffe095d4f0a/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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- 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 20:16:59,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:16:59,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:16:59,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:16:59,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:16:59,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:16:59,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:16:59,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:16:59,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:16:59,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:16:59,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:16:59,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:16:59,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:16:59,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:16:59,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:16:59,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:16:59,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:16:59,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:16:59,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:16:59,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:16:59,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:16:59,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:16:59,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:16:59,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:16:59,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:17:00,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:17:00,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:17:00,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:17:00,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:17:00,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:17:00,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:17:00,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:17:00,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:17:00,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:17:00,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:17:00,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:17:00,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:17:00,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:17:00,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:17:00,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:17:00,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:17:00,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:17:00,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:17:00,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:17:00,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:17:00,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:17:00,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:17:00,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:17:00,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:17:00,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:17:00,064 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:17:00,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:17:00,066 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:17:00,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:17:00,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:17:00,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:17:00,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:17:00,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:17:00,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:17:00,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:17:00,068 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:17:00,069 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:17:00,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:17:00,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:17:00,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:17:00,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:17:00,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:17:00,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:17:00,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:00,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:17:00,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:17:00,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:17:00,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:17:00,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:17:00,075 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:17:00,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:17:00,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:17:00,076 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_0a1820c3-62aa-4578-8446-dffe095d4f0a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2022-11-02 20:17:00,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:17:00,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:17:00,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:17:00,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:17:00,547 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:17:00,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-11-02 20:17:00,645 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/data/ac07d80d1/485c3419e4d840729e972c0c87748a42/FLAGcd1e45e46 [2022-11-02 20:17:01,456 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:17:01,457 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-11-02 20:17:01,481 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/data/ac07d80d1/485c3419e4d840729e972c0c87748a42/FLAGcd1e45e46 [2022-11-02 20:17:01,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/data/ac07d80d1/485c3419e4d840729e972c0c87748a42 [2022-11-02 20:17:01,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:17:01,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:17:01,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:01,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:17:01,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:17:01,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:01" (1/1) ... [2022-11-02 20:17:01,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e28a118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:01, skipping insertion in model container [2022-11-02 20:17:01,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:01" (1/1) ... [2022-11-02 20:17:01,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:17:01,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:17:02,170 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_0a1820c3-62aa-4578-8446-dffe095d4f0a/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-11-02 20:17:02,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:02,209 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:17:02,274 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_0a1820c3-62aa-4578-8446-dffe095d4f0a/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-11-02 20:17:02,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:02,358 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:17:02,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02 WrapperNode [2022-11-02 20:17:02,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:02,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:02,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:17:02,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:17:02,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,441 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-11-02 20:17:02,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:02,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:17:02,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:17:02,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:17:02,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:17:02,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:17:02,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:17:02,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:17:02,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:02,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:02,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:02,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:17:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:17:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:17:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:17:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:17:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:17:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:17:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:17:02,639 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 20:17:02,832 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:17:02,835 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:17:03,211 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:17:03,221 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:17:03,222 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-02 20:17:03,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:03 BoogieIcfgContainer [2022-11-02 20:17:03,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:17:03,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:17:03,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:17:03,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:17:03,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:17:01" (1/3) ... [2022-11-02 20:17:03,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362ab864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:03, skipping insertion in model container [2022-11-02 20:17:03,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (2/3) ... [2022-11-02 20:17:03,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362ab864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:03, skipping insertion in model container [2022-11-02 20:17:03,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:03" (3/3) ... [2022-11-02 20:17:03,235 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-11-02 20:17:03,246 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:17:03,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:17:03,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-02 20:17:03,259 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:17:03,466 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 20:17:03,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 306 flow [2022-11-02 20:17:03,685 INFO L130 PetriNetUnfolder]: 9/148 cut-off events. [2022-11-02 20:17:03,686 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:17:03,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 148 events. 9/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 288 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 96. Up to 3 conditions per place. [2022-11-02 20:17:03,693 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 149 transitions, 306 flow [2022-11-02 20:17:03,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 138 transitions, 279 flow [2022-11-02 20:17:03,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:17:03,741 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;@5245fcaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:17:03,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-02 20:17:03,782 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2022-11-02 20:17:03,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:17:03,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:03,784 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] [2022-11-02 20:17:03,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:03,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1358983499, now seen corresponding path program 1 times [2022-11-02 20:17:03,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:03,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448221877] [2022-11-02 20:17:03,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:03,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:04,210 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 20:17:04,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:04,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448221877] [2022-11-02 20:17:04,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448221877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:04,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:04,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:17:04,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010842386] [2022-11-02 20:17:04,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:04,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:17:04,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:04,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:17:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:17:04,318 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 149 [2022-11-02 20:17:04,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 138 transitions, 279 flow. Second operand has 2 states, 2 states have (on average 138.0) internal successors, (276), 2 states have internal predecessors, (276), 0 states have call successors, (0), 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 20:17:04,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:04,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 149 [2022-11-02 20:17:04,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:04,403 INFO L130 PetriNetUnfolder]: 0/128 cut-off events. [2022-11-02 20:17:04,404 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:17:04,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 128 events. 0/128 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 9/130 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-02 20:17:04,409 INFO L137 encePairwiseOnDemand]: 140/149 looper letters, 1 selfloop transitions, 0 changer transitions 0/128 dead transitions. [2022-11-02 20:17:04,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 128 transitions, 261 flow [2022-11-02 20:17:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:17:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:17:04,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 284 transitions. [2022-11-02 20:17:04,436 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9530201342281879 [2022-11-02 20:17:04,437 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 284 transitions. [2022-11-02 20:17:04,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 284 transitions. [2022-11-02 20:17:04,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:04,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 284 transitions. [2022-11-02 20:17:04,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 142.0) internal successors, (284), 2 states have internal predecessors, (284), 0 states have call successors, (0), 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 20:17:04,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 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 20:17:04,466 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 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 20:17:04,468 INFO L175 Difference]: Start difference. First operand has 133 places, 138 transitions, 279 flow. Second operand 2 states and 284 transitions. [2022-11-02 20:17:04,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 128 transitions, 261 flow [2022-11-02 20:17:04,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 128 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:17:04,485 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 258 flow [2022-11-02 20:17:04,488 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=258, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2022-11-02 20:17:04,492 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, -1 predicate places. [2022-11-02 20:17:04,493 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 258 flow [2022-11-02 20:17:04,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 138.0) internal successors, (276), 2 states have internal predecessors, (276), 0 states have call successors, (0), 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 20:17:04,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:04,495 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] [2022-11-02 20:17:04,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:17:04,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:04,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:04,498 INFO L85 PathProgramCache]: Analyzing trace with hash -805644313, now seen corresponding path program 1 times [2022-11-02 20:17:04,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:04,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907695641] [2022-11-02 20:17:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:04,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:05,290 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 20:17:05,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:05,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907695641] [2022-11-02 20:17:05,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907695641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:05,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:05,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:05,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516734669] [2022-11-02 20:17:05,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:05,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:05,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:05,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:05,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:05,298 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-11-02 20:17:05,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 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 20:17:05,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:05,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-11-02 20:17:05,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:06,211 INFO L130 PetriNetUnfolder]: 474/1648 cut-off events. [2022-11-02 20:17:06,211 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:17:06,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 1648 events. 474/1648 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10507 event pairs, 34 based on Foata normal form. 0/1467 useless extension candidates. Maximal degree in co-relation 2668. Up to 550 conditions per place. [2022-11-02 20:17:06,224 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 110 selfloop transitions, 37 changer transitions 0/234 dead transitions. [2022-11-02 20:17:06,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 234 transitions, 764 flow [2022-11-02 20:17:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:06,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:17:06,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 718 transitions. [2022-11-02 20:17:06,228 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8031319910514542 [2022-11-02 20:17:06,228 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 718 transitions. [2022-11-02 20:17:06,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 718 transitions. [2022-11-02 20:17:06,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:06,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 718 transitions. [2022-11-02 20:17:06,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.66666666666667) internal successors, (718), 6 states have internal predecessors, (718), 0 states have call successors, (0), 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 20:17:06,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:06,237 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:06,237 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 258 flow. Second operand 6 states and 718 transitions. [2022-11-02 20:17:06,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 234 transitions, 764 flow [2022-11-02 20:17:06,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 234 transitions, 764 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:17:06,244 INFO L231 Difference]: Finished difference. Result has 142 places, 164 transitions, 504 flow [2022-11-02 20:17:06,244 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=142, PETRI_TRANSITIONS=164} [2022-11-02 20:17:06,245 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 9 predicate places. [2022-11-02 20:17:06,245 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 164 transitions, 504 flow [2022-11-02 20:17:06,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 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 20:17:06,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:06,247 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] [2022-11-02 20:17:06,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:17:06,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:06,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:06,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1779184503, now seen corresponding path program 1 times [2022-11-02 20:17:06,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:06,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537535404] [2022-11-02 20:17:06,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:06,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:06,689 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 20:17:06,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:06,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537535404] [2022-11-02 20:17:06,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537535404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:06,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:06,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:06,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277169880] [2022-11-02 20:17:06,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:06,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:06,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:06,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:06,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:06,694 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 149 [2022-11-02 20:17:06,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 164 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 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 20:17:06,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:06,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 149 [2022-11-02 20:17:06,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:07,345 INFO L130 PetriNetUnfolder]: 494/1663 cut-off events. [2022-11-02 20:17:07,346 INFO L131 PetriNetUnfolder]: For 544/544 co-relation queries the response was YES. [2022-11-02 20:17:07,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3365 conditions, 1663 events. 494/1663 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10157 event pairs, 160 based on Foata normal form. 0/1527 useless extension candidates. Maximal degree in co-relation 3357. Up to 645 conditions per place. [2022-11-02 20:17:07,360 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 122 selfloop transitions, 18 changer transitions 0/226 dead transitions. [2022-11-02 20:17:07,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 226 transitions, 1028 flow [2022-11-02 20:17:07,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:07,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:17:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 666 transitions. [2022-11-02 20:17:07,364 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7449664429530202 [2022-11-02 20:17:07,365 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 666 transitions. [2022-11-02 20:17:07,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 666 transitions. [2022-11-02 20:17:07,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:07,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 666 transitions. [2022-11-02 20:17:07,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 0 states have call successors, (0), 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 20:17:07,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:07,373 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:07,374 INFO L175 Difference]: Start difference. First operand has 142 places, 164 transitions, 504 flow. Second operand 6 states and 666 transitions. [2022-11-02 20:17:07,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 226 transitions, 1028 flow [2022-11-02 20:17:07,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 226 transitions, 1028 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:17:07,392 INFO L231 Difference]: Finished difference. Result has 145 places, 162 transitions, 536 flow [2022-11-02 20:17:07,392 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=536, PETRI_PLACES=145, PETRI_TRANSITIONS=162} [2022-11-02 20:17:07,395 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 12 predicate places. [2022-11-02 20:17:07,396 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 162 transitions, 536 flow [2022-11-02 20:17:07,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 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 20:17:07,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:07,397 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] [2022-11-02 20:17:07,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:17:07,398 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash -107015263, now seen corresponding path program 1 times [2022-11-02 20:17:07,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:07,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319642884] [2022-11-02 20:17:07,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:07,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:07,893 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 20:17:07,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:07,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319642884] [2022-11-02 20:17:07,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319642884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:07,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:07,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066480516] [2022-11-02 20:17:07,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:07,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:07,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:07,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:07,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:07,899 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-11-02 20:17:07,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 162 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 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 20:17:07,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:07,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-11-02 20:17:07,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:08,563 INFO L130 PetriNetUnfolder]: 591/1957 cut-off events. [2022-11-02 20:17:08,564 INFO L131 PetriNetUnfolder]: For 708/708 co-relation queries the response was YES. [2022-11-02 20:17:08,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4140 conditions, 1957 events. 591/1957 cut-off events. For 708/708 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12522 event pairs, 297 based on Foata normal form. 0/1800 useless extension candidates. Maximal degree in co-relation 4131. Up to 1148 conditions per place. [2022-11-02 20:17:08,580 INFO L137 encePairwiseOnDemand]: 134/149 looper letters, 90 selfloop transitions, 48 changer transitions 0/222 dead transitions. [2022-11-02 20:17:08,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 222 transitions, 1028 flow [2022-11-02 20:17:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:17:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 660 transitions. [2022-11-02 20:17:08,584 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.738255033557047 [2022-11-02 20:17:08,584 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 660 transitions. [2022-11-02 20:17:08,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 660 transitions. [2022-11-02 20:17:08,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:08,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 660 transitions. [2022-11-02 20:17:08,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 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 20:17:08,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:08,595 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:08,595 INFO L175 Difference]: Start difference. First operand has 145 places, 162 transitions, 536 flow. Second operand 6 states and 660 transitions. [2022-11-02 20:17:08,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 222 transitions, 1028 flow [2022-11-02 20:17:08,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 222 transitions, 992 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:17:08,611 INFO L231 Difference]: Finished difference. Result has 150 places, 205 transitions, 888 flow [2022-11-02 20:17:08,612 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=888, PETRI_PLACES=150, PETRI_TRANSITIONS=205} [2022-11-02 20:17:08,614 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 17 predicate places. [2022-11-02 20:17:08,614 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 205 transitions, 888 flow [2022-11-02 20:17:08,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 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 20:17:08,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:08,624 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] [2022-11-02 20:17:08,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:17:08,625 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:08,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:08,627 INFO L85 PathProgramCache]: Analyzing trace with hash 113363352, now seen corresponding path program 1 times [2022-11-02 20:17:08,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:08,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054247246] [2022-11-02 20:17:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:08,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:09,139 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 20:17:09,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:09,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054247246] [2022-11-02 20:17:09,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054247246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:09,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:09,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:09,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000953139] [2022-11-02 20:17:09,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:09,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:09,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:09,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:09,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:09,146 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-11-02 20:17:09,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 205 transitions, 888 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 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 20:17:09,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:09,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-11-02 20:17:09,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:09,909 INFO L130 PetriNetUnfolder]: 580/1918 cut-off events. [2022-11-02 20:17:09,910 INFO L131 PetriNetUnfolder]: For 1203/1209 co-relation queries the response was YES. [2022-11-02 20:17:09,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4718 conditions, 1918 events. 580/1918 cut-off events. For 1203/1209 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 12520 event pairs, 124 based on Foata normal form. 0/1817 useless extension candidates. Maximal degree in co-relation 4705. Up to 873 conditions per place. [2022-11-02 20:17:09,927 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 165 selfloop transitions, 75 changer transitions 4/332 dead transitions. [2022-11-02 20:17:09,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 332 transitions, 1940 flow [2022-11-02 20:17:09,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:17:09,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2022-11-02 20:17:09,930 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.785234899328859 [2022-11-02 20:17:09,930 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 702 transitions. [2022-11-02 20:17:09,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 702 transitions. [2022-11-02 20:17:09,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:09,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 702 transitions. [2022-11-02 20:17:09,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 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 20:17:09,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:09,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:09,936 INFO L175 Difference]: Start difference. First operand has 150 places, 205 transitions, 888 flow. Second operand 6 states and 702 transitions. [2022-11-02 20:17:09,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 332 transitions, 1940 flow [2022-11-02 20:17:09,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 332 transitions, 1922 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 20:17:09,954 INFO L231 Difference]: Finished difference. Result has 160 places, 275 transitions, 1646 flow [2022-11-02 20:17:09,955 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1646, PETRI_PLACES=160, PETRI_TRANSITIONS=275} [2022-11-02 20:17:09,956 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 27 predicate places. [2022-11-02 20:17:09,956 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 275 transitions, 1646 flow [2022-11-02 20:17:09,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 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 20:17:09,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:09,957 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] [2022-11-02 20:17:09,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:17:09,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:09,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2051602757, now seen corresponding path program 1 times [2022-11-02 20:17:09,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:09,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298639092] [2022-11-02 20:17:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:09,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:10,209 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 20:17:10,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:10,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298639092] [2022-11-02 20:17:10,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298639092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:10,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:10,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:17:10,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74574870] [2022-11-02 20:17:10,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:10,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:10,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:10,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:10,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:10,214 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 149 [2022-11-02 20:17:10,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 275 transitions, 1646 flow. Second operand has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 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 20:17:10,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:10,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 149 [2022-11-02 20:17:10,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:10,413 INFO L130 PetriNetUnfolder]: 99/584 cut-off events. [2022-11-02 20:17:10,413 INFO L131 PetriNetUnfolder]: For 482/523 co-relation queries the response was YES. [2022-11-02 20:17:10,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 584 events. 99/584 cut-off events. For 482/523 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2476 event pairs, 3 based on Foata normal form. 8/581 useless extension candidates. Maximal degree in co-relation 1386. Up to 112 conditions per place. [2022-11-02 20:17:10,419 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 17 selfloop transitions, 6 changer transitions 1/189 dead transitions. [2022-11-02 20:17:10,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 189 transitions, 964 flow [2022-11-02 20:17:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:17:10,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:17:10,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 600 transitions. [2022-11-02 20:17:10,422 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8053691275167785 [2022-11-02 20:17:10,422 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 600 transitions. [2022-11-02 20:17:10,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 600 transitions. [2022-11-02 20:17:10,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:10,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 600 transitions. [2022-11-02 20:17:10,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 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 20:17:10,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 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 20:17:10,427 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 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 20:17:10,427 INFO L175 Difference]: Start difference. First operand has 160 places, 275 transitions, 1646 flow. Second operand 5 states and 600 transitions. [2022-11-02 20:17:10,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 189 transitions, 964 flow [2022-11-02 20:17:10,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 189 transitions, 836 flow, removed 55 selfloop flow, removed 7 redundant places. [2022-11-02 20:17:10,439 INFO L231 Difference]: Finished difference. Result has 156 places, 188 transitions, 800 flow [2022-11-02 20:17:10,440 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=800, PETRI_PLACES=156, PETRI_TRANSITIONS=188} [2022-11-02 20:17:10,441 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 23 predicate places. [2022-11-02 20:17:10,441 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 188 transitions, 800 flow [2022-11-02 20:17:10,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 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 20:17:10,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:10,442 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] [2022-11-02 20:17:10,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:17:10,442 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:10,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:10,443 INFO L85 PathProgramCache]: Analyzing trace with hash -120372656, now seen corresponding path program 1 times [2022-11-02 20:17:10,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:10,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625570842] [2022-11-02 20:17:10,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:10,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:11,013 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 20:17:11,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:11,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625570842] [2022-11-02 20:17:11,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625570842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:11,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:11,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:11,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968852787] [2022-11-02 20:17:11,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:11,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:11,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:11,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:11,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:11,017 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-11-02 20:17:11,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 188 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 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 20:17:11,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:11,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-11-02 20:17:11,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:11,473 INFO L130 PetriNetUnfolder]: 304/965 cut-off events. [2022-11-02 20:17:11,473 INFO L131 PetriNetUnfolder]: For 809/809 co-relation queries the response was YES. [2022-11-02 20:17:11,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2792 conditions, 965 events. 304/965 cut-off events. For 809/809 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4314 event pairs, 110 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 2777. Up to 651 conditions per place. [2022-11-02 20:17:11,481 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 99 selfloop transitions, 26 changer transitions 15/224 dead transitions. [2022-11-02 20:17:11,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 224 transitions, 1286 flow [2022-11-02 20:17:11,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:11,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:17:11,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 635 transitions. [2022-11-02 20:17:11,484 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7102908277404921 [2022-11-02 20:17:11,484 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 635 transitions. [2022-11-02 20:17:11,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 635 transitions. [2022-11-02 20:17:11,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:11,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 635 transitions. [2022-11-02 20:17:11,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 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 20:17:11,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:11,489 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 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 20:17:11,489 INFO L175 Difference]: Start difference. First operand has 156 places, 188 transitions, 800 flow. Second operand 6 states and 635 transitions. [2022-11-02 20:17:11,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 224 transitions, 1286 flow [2022-11-02 20:17:11,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 224 transitions, 1273 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:17:11,503 INFO L231 Difference]: Finished difference. Result has 161 places, 205 transitions, 1005 flow [2022-11-02 20:17:11,504 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1005, PETRI_PLACES=161, PETRI_TRANSITIONS=205} [2022-11-02 20:17:11,505 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 28 predicate places. [2022-11-02 20:17:11,505 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 205 transitions, 1005 flow [2022-11-02 20:17:11,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 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 20:17:11,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:11,506 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 20:17:11,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:17:11,506 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:11,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:11,507 INFO L85 PathProgramCache]: Analyzing trace with hash 879857371, now seen corresponding path program 1 times [2022-11-02 20:17:11,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:11,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246100608] [2022-11-02 20:17:11,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:11,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:12,259 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 20:17:12,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:12,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246100608] [2022-11-02 20:17:12,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246100608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:12,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:12,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:17:12,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665292978] [2022-11-02 20:17:12,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:12,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:17:12,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:12,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:17:12,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:17:12,264 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-11-02 20:17:12,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 205 transitions, 1005 flow. Second operand has 12 states, 12 states have (on average 79.83333333333333) internal successors, (958), 12 states have internal predecessors, (958), 0 states have call successors, (0), 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 20:17:12,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:12,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-11-02 20:17:12,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:13,130 INFO L130 PetriNetUnfolder]: 324/990 cut-off events. [2022-11-02 20:17:13,131 INFO L131 PetriNetUnfolder]: For 1165/1174 co-relation queries the response was YES. [2022-11-02 20:17:13,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3161 conditions, 990 events. 324/990 cut-off events. For 1165/1174 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4266 event pairs, 107 based on Foata normal form. 11/990 useless extension candidates. Maximal degree in co-relation 3142. Up to 533 conditions per place. [2022-11-02 20:17:13,141 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 156 selfloop transitions, 30 changer transitions 10/267 dead transitions. [2022-11-02 20:17:13,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 267 transitions, 1785 flow [2022-11-02 20:17:13,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:17:13,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:17:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 953 transitions. [2022-11-02 20:17:13,144 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5814521049420378 [2022-11-02 20:17:13,145 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 953 transitions. [2022-11-02 20:17:13,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 953 transitions. [2022-11-02 20:17:13,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:13,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 953 transitions. [2022-11-02 20:17:13,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.63636363636364) internal successors, (953), 11 states have internal predecessors, (953), 0 states have call successors, (0), 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 20:17:13,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 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 20:17:13,154 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 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 20:17:13,155 INFO L175 Difference]: Start difference. First operand has 161 places, 205 transitions, 1005 flow. Second operand 11 states and 953 transitions. [2022-11-02 20:17:13,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 267 transitions, 1785 flow [2022-11-02 20:17:13,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 267 transitions, 1727 flow, removed 25 selfloop flow, removed 1 redundant places. [2022-11-02 20:17:13,179 INFO L231 Difference]: Finished difference. Result has 169 places, 204 transitions, 1005 flow [2022-11-02 20:17:13,180 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1005, PETRI_PLACES=169, PETRI_TRANSITIONS=204} [2022-11-02 20:17:13,183 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 36 predicate places. [2022-11-02 20:17:13,183 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 204 transitions, 1005 flow [2022-11-02 20:17:13,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 79.83333333333333) internal successors, (958), 12 states have internal predecessors, (958), 0 states have call successors, (0), 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 20:17:13,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:13,185 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 20:17:13,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:17:13,185 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:13,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1526673478, now seen corresponding path program 1 times [2022-11-02 20:17:13,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:13,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879717991] [2022-11-02 20:17:13,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:13,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:13,934 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 20:17:13,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:13,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879717991] [2022-11-02 20:17:13,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879717991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:13,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:13,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:17:13,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148178961] [2022-11-02 20:17:13,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:13,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:17:13,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:13,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:17:13,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:17:13,938 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:13,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 204 transitions, 1005 flow. Second operand has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 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 20:17:13,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:13,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:13,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:15,135 INFO L130 PetriNetUnfolder]: 444/1315 cut-off events. [2022-11-02 20:17:15,136 INFO L131 PetriNetUnfolder]: For 1781/1788 co-relation queries the response was YES. [2022-11-02 20:17:15,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4344 conditions, 1315 events. 444/1315 cut-off events. For 1781/1788 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6499 event pairs, 17 based on Foata normal form. 32/1345 useless extension candidates. Maximal degree in co-relation 4325. Up to 377 conditions per place. [2022-11-02 20:17:15,148 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 232 selfloop transitions, 45 changer transitions 41/392 dead transitions. [2022-11-02 20:17:15,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 392 transitions, 2649 flow [2022-11-02 20:17:15,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:17:15,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:17:15,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1209 transitions. [2022-11-02 20:17:15,153 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6241610738255033 [2022-11-02 20:17:15,154 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1209 transitions. [2022-11-02 20:17:15,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1209 transitions. [2022-11-02 20:17:15,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:15,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1209 transitions. [2022-11-02 20:17:15,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 93.0) internal successors, (1209), 13 states have internal predecessors, (1209), 0 states have call successors, (0), 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 20:17:15,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 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 20:17:15,165 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 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 20:17:15,165 INFO L175 Difference]: Start difference. First operand has 169 places, 204 transitions, 1005 flow. Second operand 13 states and 1209 transitions. [2022-11-02 20:17:15,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 392 transitions, 2649 flow [2022-11-02 20:17:15,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 392 transitions, 2531 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-02 20:17:15,191 INFO L231 Difference]: Finished difference. Result has 178 places, 229 transitions, 1366 flow [2022-11-02 20:17:15,191 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1366, PETRI_PLACES=178, PETRI_TRANSITIONS=229} [2022-11-02 20:17:15,193 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 45 predicate places. [2022-11-02 20:17:15,193 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 229 transitions, 1366 flow [2022-11-02 20:17:15,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 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 20:17:15,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:15,194 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 20:17:15,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:17:15,194 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:15,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:15,195 INFO L85 PathProgramCache]: Analyzing trace with hash 208957478, now seen corresponding path program 2 times [2022-11-02 20:17:15,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:15,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102647657] [2022-11-02 20:17:15,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:15,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:15,997 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 20:17:15,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:16,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102647657] [2022-11-02 20:17:16,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102647657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:16,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:16,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:16,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450724162] [2022-11-02 20:17:16,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:16,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:16,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:16,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:16,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:16,008 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:16,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 229 transitions, 1366 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:16,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:16,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:16,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:17,197 INFO L130 PetriNetUnfolder]: 431/1375 cut-off events. [2022-11-02 20:17:17,197 INFO L131 PetriNetUnfolder]: For 3191/3196 co-relation queries the response was YES. [2022-11-02 20:17:17,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5119 conditions, 1375 events. 431/1375 cut-off events. For 3191/3196 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7084 event pairs, 64 based on Foata normal form. 19/1389 useless extension candidates. Maximal degree in co-relation 5093. Up to 577 conditions per place. [2022-11-02 20:17:17,212 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 165 selfloop transitions, 52 changer transitions 42/333 dead transitions. [2022-11-02 20:17:17,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 333 transitions, 2235 flow [2022-11-02 20:17:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:17:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:17:17,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1055 transitions. [2022-11-02 20:17:17,217 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6436851738865161 [2022-11-02 20:17:17,217 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1055 transitions. [2022-11-02 20:17:17,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1055 transitions. [2022-11-02 20:17:17,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:17,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1055 transitions. [2022-11-02 20:17:17,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.9090909090909) internal successors, (1055), 11 states have internal predecessors, (1055), 0 states have call successors, (0), 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 20:17:17,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 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 20:17:17,226 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 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 20:17:17,226 INFO L175 Difference]: Start difference. First operand has 178 places, 229 transitions, 1366 flow. Second operand 11 states and 1055 transitions. [2022-11-02 20:17:17,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 333 transitions, 2235 flow [2022-11-02 20:17:17,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 333 transitions, 2213 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:17:17,274 INFO L231 Difference]: Finished difference. Result has 184 places, 228 transitions, 1464 flow [2022-11-02 20:17:17,276 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1464, PETRI_PLACES=184, PETRI_TRANSITIONS=228} [2022-11-02 20:17:17,277 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 51 predicate places. [2022-11-02 20:17:17,277 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 228 transitions, 1464 flow [2022-11-02 20:17:17,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:17,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:17,280 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 20:17:17,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:17:17,281 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:17,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:17,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1677989122, now seen corresponding path program 3 times [2022-11-02 20:17:17,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:17,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813276767] [2022-11-02 20:17:17,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:17,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:17,934 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 20:17:17,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:17,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813276767] [2022-11-02 20:17:17,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813276767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:17,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:17,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:17,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911635445] [2022-11-02 20:17:17,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:17,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:17,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:17,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:17,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:17,939 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:17,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 228 transitions, 1464 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:17,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:17,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:17,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:19,251 INFO L130 PetriNetUnfolder]: 650/2002 cut-off events. [2022-11-02 20:17:19,251 INFO L131 PetriNetUnfolder]: For 7432/7438 co-relation queries the response was YES. [2022-11-02 20:17:19,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7897 conditions, 2002 events. 650/2002 cut-off events. For 7432/7438 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 11792 event pairs, 76 based on Foata normal form. 31/2023 useless extension candidates. Maximal degree in co-relation 7868. Up to 629 conditions per place. [2022-11-02 20:17:19,275 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 274 selfloop transitions, 75 changer transitions 55/478 dead transitions. [2022-11-02 20:17:19,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 478 transitions, 3788 flow [2022-11-02 20:17:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:19,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:17:19,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1170 transitions. [2022-11-02 20:17:19,279 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6543624161073825 [2022-11-02 20:17:19,279 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1170 transitions. [2022-11-02 20:17:19,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1170 transitions. [2022-11-02 20:17:19,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:19,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1170 transitions. [2022-11-02 20:17:19,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.5) internal successors, (1170), 12 states have internal predecessors, (1170), 0 states have call successors, (0), 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 20:17:19,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:19,288 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:19,288 INFO L175 Difference]: Start difference. First operand has 184 places, 228 transitions, 1464 flow. Second operand 12 states and 1170 transitions. [2022-11-02 20:17:19,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 478 transitions, 3788 flow [2022-11-02 20:17:19,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 478 transitions, 3674 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-02 20:17:19,366 INFO L231 Difference]: Finished difference. Result has 191 places, 267 transitions, 2146 flow [2022-11-02 20:17:19,366 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1397, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2146, PETRI_PLACES=191, PETRI_TRANSITIONS=267} [2022-11-02 20:17:19,367 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 58 predicate places. [2022-11-02 20:17:19,367 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 267 transitions, 2146 flow [2022-11-02 20:17:19,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:19,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:19,368 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 20:17:19,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:17:19,368 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:19,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:19,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2118779142, now seen corresponding path program 4 times [2022-11-02 20:17:19,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:19,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871669224] [2022-11-02 20:17:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:19,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:20,063 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 20:17:20,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:20,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871669224] [2022-11-02 20:17:20,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871669224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:20,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:20,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112507556] [2022-11-02 20:17:20,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:20,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:20,067 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:20,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 267 transitions, 2146 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:20,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:20,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:20,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:21,772 INFO L130 PetriNetUnfolder]: 671/2100 cut-off events. [2022-11-02 20:17:21,773 INFO L131 PetriNetUnfolder]: For 11319/11325 co-relation queries the response was YES. [2022-11-02 20:17:21,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8857 conditions, 2100 events. 671/2100 cut-off events. For 11319/11325 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 12835 event pairs, 97 based on Foata normal form. 31/2123 useless extension candidates. Maximal degree in co-relation 8823. Up to 897 conditions per place. [2022-11-02 20:17:21,843 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 223 selfloop transitions, 72 changer transitions 52/421 dead transitions. [2022-11-02 20:17:21,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 421 transitions, 3571 flow [2022-11-02 20:17:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:17:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:17:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1240 transitions. [2022-11-02 20:17:21,847 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6401652039235932 [2022-11-02 20:17:21,847 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1240 transitions. [2022-11-02 20:17:21,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1240 transitions. [2022-11-02 20:17:21,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:21,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1240 transitions. [2022-11-02 20:17:21,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 95.38461538461539) internal successors, (1240), 13 states have internal predecessors, (1240), 0 states have call successors, (0), 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 20:17:21,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 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 20:17:21,856 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 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 20:17:21,856 INFO L175 Difference]: Start difference. First operand has 191 places, 267 transitions, 2146 flow. Second operand 13 states and 1240 transitions. [2022-11-02 20:17:21,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 421 transitions, 3571 flow [2022-11-02 20:17:21,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 421 transitions, 3492 flow, removed 32 selfloop flow, removed 5 redundant places. [2022-11-02 20:17:21,936 INFO L231 Difference]: Finished difference. Result has 205 places, 278 transitions, 2479 flow [2022-11-02 20:17:21,936 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2073, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2479, PETRI_PLACES=205, PETRI_TRANSITIONS=278} [2022-11-02 20:17:21,937 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 72 predicate places. [2022-11-02 20:17:21,938 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 278 transitions, 2479 flow [2022-11-02 20:17:21,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:21,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:21,939 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 20:17:21,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:17:21,939 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:21,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:21,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1869071714, now seen corresponding path program 5 times [2022-11-02 20:17:21,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:21,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448428872] [2022-11-02 20:17:21,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:21,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:22,516 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 20:17:22,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:22,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448428872] [2022-11-02 20:17:22,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448428872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:22,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:22,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:22,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169117764] [2022-11-02 20:17:22,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:22,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:22,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:22,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:22,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:22,521 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:22,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 278 transitions, 2479 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:22,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:22,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:22,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:24,114 INFO L130 PetriNetUnfolder]: 680/2179 cut-off events. [2022-11-02 20:17:24,114 INFO L131 PetriNetUnfolder]: For 15327/15335 co-relation queries the response was YES. [2022-11-02 20:17:24,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9733 conditions, 2179 events. 680/2179 cut-off events. For 15327/15335 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 13735 event pairs, 65 based on Foata normal form. 33/2199 useless extension candidates. Maximal degree in co-relation 9693. Up to 822 conditions per place. [2022-11-02 20:17:24,143 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 274 selfloop transitions, 81 changer transitions 55/484 dead transitions. [2022-11-02 20:17:24,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 484 transitions, 4603 flow [2022-11-02 20:17:24,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:24,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:17:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1168 transitions. [2022-11-02 20:17:24,149 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6532438478747203 [2022-11-02 20:17:24,149 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1168 transitions. [2022-11-02 20:17:24,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1168 transitions. [2022-11-02 20:17:24,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:24,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1168 transitions. [2022-11-02 20:17:24,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.33333333333333) internal successors, (1168), 12 states have internal predecessors, (1168), 0 states have call successors, (0), 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 20:17:24,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:24,160 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:24,160 INFO L175 Difference]: Start difference. First operand has 205 places, 278 transitions, 2479 flow. Second operand 12 states and 1168 transitions. [2022-11-02 20:17:24,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 484 transitions, 4603 flow [2022-11-02 20:17:24,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 484 transitions, 4425 flow, removed 11 selfloop flow, removed 8 redundant places. [2022-11-02 20:17:24,269 INFO L231 Difference]: Finished difference. Result has 213 places, 302 transitions, 2962 flow [2022-11-02 20:17:24,269 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2333, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2962, PETRI_PLACES=213, PETRI_TRANSITIONS=302} [2022-11-02 20:17:24,270 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 80 predicate places. [2022-11-02 20:17:24,271 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 302 transitions, 2962 flow [2022-11-02 20:17:24,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:24,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:24,272 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 20:17:24,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:17:24,272 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:24,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash 284753226, now seen corresponding path program 6 times [2022-11-02 20:17:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:24,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63746460] [2022-11-02 20:17:24,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:24,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:24,954 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 20:17:24,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:24,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63746460] [2022-11-02 20:17:24,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63746460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:24,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:24,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:24,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166307106] [2022-11-02 20:17:24,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:24,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:24,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:24,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:24,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:24,957 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:24,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 302 transitions, 2962 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:24,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:24,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:24,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:26,578 INFO L130 PetriNetUnfolder]: 818/2666 cut-off events. [2022-11-02 20:17:26,578 INFO L131 PetriNetUnfolder]: For 26828/26836 co-relation queries the response was YES. [2022-11-02 20:17:26,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12228 conditions, 2666 events. 818/2666 cut-off events. For 26828/26836 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17980 event pairs, 148 based on Foata normal form. 33/2682 useless extension candidates. Maximal degree in co-relation 12183. Up to 956 conditions per place. [2022-11-02 20:17:26,608 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 282 selfloop transitions, 90 changer transitions 53/499 dead transitions. [2022-11-02 20:17:26,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 499 transitions, 5111 flow [2022-11-02 20:17:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:17:26,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-11-02 20:17:26,611 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-11-02 20:17:26,611 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-11-02 20:17:26,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-11-02 20:17:26,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:26,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-11-02 20:17:26,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.83333333333333) internal successors, (1162), 12 states have internal predecessors, (1162), 0 states have call successors, (0), 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 20:17:26,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:26,618 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:26,618 INFO L175 Difference]: Start difference. First operand has 213 places, 302 transitions, 2962 flow. Second operand 12 states and 1162 transitions. [2022-11-02 20:17:26,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 499 transitions, 5111 flow [2022-11-02 20:17:26,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 499 transitions, 5025 flow, removed 38 selfloop flow, removed 4 redundant places. [2022-11-02 20:17:26,817 INFO L231 Difference]: Finished difference. Result has 226 places, 328 transitions, 3602 flow [2022-11-02 20:17:26,818 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2878, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3602, PETRI_PLACES=226, PETRI_TRANSITIONS=328} [2022-11-02 20:17:26,818 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 93 predicate places. [2022-11-02 20:17:26,819 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 328 transitions, 3602 flow [2022-11-02 20:17:26,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:26,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:26,820 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 20:17:26,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:17:26,820 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:26,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:26,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1245958416, now seen corresponding path program 7 times [2022-11-02 20:17:26,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:26,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57204658] [2022-11-02 20:17:26,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:26,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:27,477 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 20:17:27,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:27,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57204658] [2022-11-02 20:17:27,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57204658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:27,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:27,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:27,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309966796] [2022-11-02 20:17:27,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:27,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:27,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:27,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:27,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:27,480 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:27,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 328 transitions, 3602 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:27,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:27,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:27,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:29,215 INFO L130 PetriNetUnfolder]: 767/2593 cut-off events. [2022-11-02 20:17:29,215 INFO L131 PetriNetUnfolder]: For 32316/32324 co-relation queries the response was YES. [2022-11-02 20:17:29,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12501 conditions, 2593 events. 767/2593 cut-off events. For 32316/32324 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 17671 event pairs, 145 based on Foata normal form. 33/2612 useless extension candidates. Maximal degree in co-relation 12450. Up to 1218 conditions per place. [2022-11-02 20:17:29,247 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 263 selfloop transitions, 86 changer transitions 61/484 dead transitions. [2022-11-02 20:17:29,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 484 transitions, 5301 flow [2022-11-02 20:17:29,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:17:29,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1165 transitions. [2022-11-02 20:17:29,255 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.651565995525727 [2022-11-02 20:17:29,256 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1165 transitions. [2022-11-02 20:17:29,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1165 transitions. [2022-11-02 20:17:29,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:29,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1165 transitions. [2022-11-02 20:17:29,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.08333333333333) internal successors, (1165), 12 states have internal predecessors, (1165), 0 states have call successors, (0), 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 20:17:29,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:29,283 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:29,283 INFO L175 Difference]: Start difference. First operand has 226 places, 328 transitions, 3602 flow. Second operand 12 states and 1165 transitions. [2022-11-02 20:17:29,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 484 transitions, 5301 flow [2022-11-02 20:17:29,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 484 transitions, 5153 flow, removed 58 selfloop flow, removed 4 redundant places. [2022-11-02 20:17:29,493 INFO L231 Difference]: Finished difference. Result has 238 places, 338 transitions, 3928 flow [2022-11-02 20:17:29,494 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3457, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3928, PETRI_PLACES=238, PETRI_TRANSITIONS=338} [2022-11-02 20:17:29,495 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 105 predicate places. [2022-11-02 20:17:29,495 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 338 transitions, 3928 flow [2022-11-02 20:17:29,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:29,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:29,496 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 20:17:29,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:17:29,497 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:29,497 INFO L85 PathProgramCache]: Analyzing trace with hash -778330110, now seen corresponding path program 8 times [2022-11-02 20:17:29,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:29,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655019939] [2022-11-02 20:17:29,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:29,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:30,122 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 20:17:30,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:30,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655019939] [2022-11-02 20:17:30,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655019939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:30,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:30,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:30,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065389988] [2022-11-02 20:17:30,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:30,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:30,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:30,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:30,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:30,132 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:30,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 338 transitions, 3928 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:30,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:30,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:30,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:31,837 INFO L130 PetriNetUnfolder]: 810/2795 cut-off events. [2022-11-02 20:17:31,838 INFO L131 PetriNetUnfolder]: For 42264/42273 co-relation queries the response was YES. [2022-11-02 20:17:31,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13822 conditions, 2795 events. 810/2795 cut-off events. For 42264/42273 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 19668 event pairs, 134 based on Foata normal form. 34/2812 useless extension candidates. Maximal degree in co-relation 13766. Up to 646 conditions per place. [2022-11-02 20:17:31,878 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 309 selfloop transitions, 100 changer transitions 54/537 dead transitions. [2022-11-02 20:17:31,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 537 transitions, 6217 flow [2022-11-02 20:17:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:17:31,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-11-02 20:17:31,882 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-11-02 20:17:31,883 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-11-02 20:17:31,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-11-02 20:17:31,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:31,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-11-02 20:17:31,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.83333333333333) internal successors, (1162), 12 states have internal predecessors, (1162), 0 states have call successors, (0), 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 20:17:31,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:31,891 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:31,891 INFO L175 Difference]: Start difference. First operand has 238 places, 338 transitions, 3928 flow. Second operand 12 states and 1162 transitions. [2022-11-02 20:17:31,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 537 transitions, 6217 flow [2022-11-02 20:17:32,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 537 transitions, 6134 flow, removed 25 selfloop flow, removed 5 redundant places. [2022-11-02 20:17:32,188 INFO L231 Difference]: Finished difference. Result has 251 places, 362 transitions, 4672 flow [2022-11-02 20:17:32,188 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3846, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4672, PETRI_PLACES=251, PETRI_TRANSITIONS=362} [2022-11-02 20:17:32,189 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 118 predicate places. [2022-11-02 20:17:32,189 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 362 transitions, 4672 flow [2022-11-02 20:17:32,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:32,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:32,190 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 20:17:32,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:17:32,190 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:32,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash 538657098, now seen corresponding path program 9 times [2022-11-02 20:17:32,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:32,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519599428] [2022-11-02 20:17:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:32,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:32,799 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 20:17:32,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:32,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519599428] [2022-11-02 20:17:32,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519599428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:32,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:32,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:32,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875946048] [2022-11-02 20:17:32,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:32,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:32,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:32,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:32,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:32,803 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:32,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 362 transitions, 4672 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:32,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:32,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:32,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:34,451 INFO L130 PetriNetUnfolder]: 804/2833 cut-off events. [2022-11-02 20:17:34,452 INFO L131 PetriNetUnfolder]: For 53685/53694 co-relation queries the response was YES. [2022-11-02 20:17:34,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14766 conditions, 2833 events. 804/2833 cut-off events. For 53685/53694 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 20272 event pairs, 157 based on Foata normal form. 23/2838 useless extension candidates. Maximal degree in co-relation 14703. Up to 1256 conditions per place. [2022-11-02 20:17:34,490 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 249 selfloop transitions, 97 changer transitions 46/466 dead transitions. [2022-11-02 20:17:34,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 466 transitions, 5878 flow [2022-11-02 20:17:34,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:17:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1132 transitions. [2022-11-02 20:17:34,494 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6331096196868009 [2022-11-02 20:17:34,494 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1132 transitions. [2022-11-02 20:17:34,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1132 transitions. [2022-11-02 20:17:34,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:34,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1132 transitions. [2022-11-02 20:17:34,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.33333333333333) internal successors, (1132), 12 states have internal predecessors, (1132), 0 states have call successors, (0), 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 20:17:34,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:34,502 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:34,502 INFO L175 Difference]: Start difference. First operand has 251 places, 362 transitions, 4672 flow. Second operand 12 states and 1132 transitions. [2022-11-02 20:17:34,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 466 transitions, 5878 flow [2022-11-02 20:17:34,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 466 transitions, 5675 flow, removed 99 selfloop flow, removed 3 redundant places. [2022-11-02 20:17:34,900 INFO L231 Difference]: Finished difference. Result has 263 places, 364 transitions, 4737 flow [2022-11-02 20:17:34,901 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4471, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4737, PETRI_PLACES=263, PETRI_TRANSITIONS=364} [2022-11-02 20:17:34,902 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 130 predicate places. [2022-11-02 20:17:34,902 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 364 transitions, 4737 flow [2022-11-02 20:17:34,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:34,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:34,903 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 20:17:34,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:17:34,903 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:34,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash 592689648, now seen corresponding path program 10 times [2022-11-02 20:17:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:34,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000541222] [2022-11-02 20:17:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:34,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:35,521 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 20:17:35,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:35,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000541222] [2022-11-02 20:17:35,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000541222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:35,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:35,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:35,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231390243] [2022-11-02 20:17:35,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:35,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:35,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:35,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:35,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:35,525 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:35,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 364 transitions, 4737 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:35,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:35,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:35,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:37,245 INFO L130 PetriNetUnfolder]: 834/2942 cut-off events. [2022-11-02 20:17:37,246 INFO L131 PetriNetUnfolder]: For 61022/61031 co-relation queries the response was YES. [2022-11-02 20:17:37,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15610 conditions, 2942 events. 834/2942 cut-off events. For 61022/61031 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 21345 event pairs, 159 based on Foata normal form. 34/2955 useless extension candidates. Maximal degree in co-relation 15543. Up to 1256 conditions per place. [2022-11-02 20:17:37,294 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 275 selfloop transitions, 99 changer transitions 57/505 dead transitions. [2022-11-02 20:17:37,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 505 transitions, 6484 flow [2022-11-02 20:17:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:17:37,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:17:37,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1222 transitions. [2022-11-02 20:17:37,298 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6308724832214765 [2022-11-02 20:17:37,298 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1222 transitions. [2022-11-02 20:17:37,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1222 transitions. [2022-11-02 20:17:37,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:37,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1222 transitions. [2022-11-02 20:17:37,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 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 20:17:37,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 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 20:17:37,382 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 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 20:17:37,382 INFO L175 Difference]: Start difference. First operand has 263 places, 364 transitions, 4737 flow. Second operand 13 states and 1222 transitions. [2022-11-02 20:17:37,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 505 transitions, 6484 flow [2022-11-02 20:17:37,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 505 transitions, 6207 flow, removed 29 selfloop flow, removed 9 redundant places. [2022-11-02 20:17:37,882 INFO L231 Difference]: Finished difference. Result has 273 places, 376 transitions, 5132 flow [2022-11-02 20:17:37,883 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4478, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5132, PETRI_PLACES=273, PETRI_TRANSITIONS=376} [2022-11-02 20:17:37,883 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 140 predicate places. [2022-11-02 20:17:37,884 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 376 transitions, 5132 flow [2022-11-02 20:17:37,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:37,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:37,884 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 20:17:37,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:17:37,885 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:37,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:37,885 INFO L85 PathProgramCache]: Analyzing trace with hash -30423650, now seen corresponding path program 11 times [2022-11-02 20:17:37,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:37,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682645559] [2022-11-02 20:17:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:37,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:38,459 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 20:17:38,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:38,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682645559] [2022-11-02 20:17:38,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682645559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:38,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:38,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894050572] [2022-11-02 20:17:38,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:38,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:38,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:38,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:38,462 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:38,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 376 transitions, 5132 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:38,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:38,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:38,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:40,241 INFO L130 PetriNetUnfolder]: 764/2813 cut-off events. [2022-11-02 20:17:40,242 INFO L131 PetriNetUnfolder]: For 56138/56147 co-relation queries the response was YES. [2022-11-02 20:17:40,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14807 conditions, 2813 events. 764/2813 cut-off events. For 56138/56147 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 20535 event pairs, 142 based on Foata normal form. 34/2826 useless extension candidates. Maximal degree in co-relation 14734. Up to 1085 conditions per place. [2022-11-02 20:17:40,268 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 295 selfloop transitions, 107 changer transitions 59/535 dead transitions. [2022-11-02 20:17:40,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 535 transitions, 7015 flow [2022-11-02 20:17:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:17:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:17:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1154 transitions. [2022-11-02 20:17:40,272 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.645413870246085 [2022-11-02 20:17:40,272 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1154 transitions. [2022-11-02 20:17:40,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1154 transitions. [2022-11-02 20:17:40,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:40,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1154 transitions. [2022-11-02 20:17:40,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.16666666666667) internal successors, (1154), 12 states have internal predecessors, (1154), 0 states have call successors, (0), 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 20:17:40,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:40,280 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 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 20:17:40,280 INFO L175 Difference]: Start difference. First operand has 273 places, 376 transitions, 5132 flow. Second operand 12 states and 1154 transitions. [2022-11-02 20:17:40,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 535 transitions, 7015 flow [2022-11-02 20:17:40,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 535 transitions, 6671 flow, removed 97 selfloop flow, removed 6 redundant places. [2022-11-02 20:17:40,563 INFO L231 Difference]: Finished difference. Result has 283 places, 385 transitions, 5380 flow [2022-11-02 20:17:40,564 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4841, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5380, PETRI_PLACES=283, PETRI_TRANSITIONS=385} [2022-11-02 20:17:40,564 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 150 predicate places. [2022-11-02 20:17:40,564 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 385 transitions, 5380 flow [2022-11-02 20:17:40,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:40,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:40,565 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 20:17:40,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:17:40,565 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash 907866524, now seen corresponding path program 12 times [2022-11-02 20:17:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:40,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520787767] [2022-11-02 20:17:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:41,204 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 20:17:41,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:41,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520787767] [2022-11-02 20:17:41,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520787767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:41,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:41,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:17:41,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190391291] [2022-11-02 20:17:41,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:41,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:17:41,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:41,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:17:41,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:17:41,210 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-02 20:17:41,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 385 transitions, 5380 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:41,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:41,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-02 20:17:41,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:43,084 INFO L130 PetriNetUnfolder]: 709/2728 cut-off events. [2022-11-02 20:17:43,084 INFO L131 PetriNetUnfolder]: For 56268/56278 co-relation queries the response was YES. [2022-11-02 20:17:43,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14333 conditions, 2728 events. 709/2728 cut-off events. For 56268/56278 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 20077 event pairs, 123 based on Foata normal form. 35/2746 useless extension candidates. Maximal degree in co-relation 14256. Up to 1117 conditions per place. [2022-11-02 20:17:43,119 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 269 selfloop transitions, 109 changer transitions 69/511 dead transitions. [2022-11-02 20:17:43,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 511 transitions, 6772 flow [2022-11-02 20:17:43,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:17:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:17:43,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1227 transitions. [2022-11-02 20:17:43,122 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6334537945276201 [2022-11-02 20:17:43,122 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1227 transitions. [2022-11-02 20:17:43,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1227 transitions. [2022-11-02 20:17:43,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:43,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1227 transitions. [2022-11-02 20:17:43,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.38461538461539) internal successors, (1227), 13 states have internal predecessors, (1227), 0 states have call successors, (0), 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 20:17:43,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 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 20:17:43,129 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 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 20:17:43,130 INFO L175 Difference]: Start difference. First operand has 283 places, 385 transitions, 5380 flow. Second operand 13 states and 1227 transitions. [2022-11-02 20:17:43,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 511 transitions, 6772 flow [2022-11-02 20:17:43,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 511 transitions, 6455 flow, removed 94 selfloop flow, removed 15 redundant places. [2022-11-02 20:17:43,488 INFO L231 Difference]: Finished difference. Result has 280 places, 369 transitions, 5230 flow [2022-11-02 20:17:43,489 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5046, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5230, PETRI_PLACES=280, PETRI_TRANSITIONS=369} [2022-11-02 20:17:43,489 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 147 predicate places. [2022-11-02 20:17:43,489 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 369 transitions, 5230 flow [2022-11-02 20:17:43,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 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 20:17:43,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:43,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:43,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:17:43,491 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-02 20:17:43,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1648901000, now seen corresponding path program 1 times [2022-11-02 20:17:43,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:43,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563421425] [2022-11-02 20:17:43,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:43,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:44,035 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 20:17:44,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:44,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563421425] [2022-11-02 20:17:44,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563421425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:44,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:44,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:17:44,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445708905] [2022-11-02 20:17:44,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:44,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:17:44,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:44,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:17:44,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:17:44,038 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-11-02 20:17:44,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 369 transitions, 5230 flow. Second operand has 12 states, 12 states have (on average 80.83333333333333) internal successors, (970), 12 states have internal predecessors, (970), 0 states have call successors, (0), 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 20:17:44,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:44,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-11-02 20:17:44,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:44,925 INFO L130 PetriNetUnfolder]: 591/2034 cut-off events. [2022-11-02 20:17:44,925 INFO L131 PetriNetUnfolder]: For 41272/41272 co-relation queries the response was YES. [2022-11-02 20:17:44,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11875 conditions, 2034 events. 591/2034 cut-off events. For 41272/41272 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 13285 event pairs, 238 based on Foata normal form. 44/2052 useless extension candidates. Maximal degree in co-relation 11807. Up to 1183 conditions per place. [2022-11-02 20:17:44,944 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 0 selfloop transitions, 0 changer transitions 477/477 dead transitions. [2022-11-02 20:17:44,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 477 transitions, 8134 flow [2022-11-02 20:17:44,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:17:44,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:17:44,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 941 transitions. [2022-11-02 20:17:44,947 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.574130567419158 [2022-11-02 20:17:44,947 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 941 transitions. [2022-11-02 20:17:44,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 941 transitions. [2022-11-02 20:17:44,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:44,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 941 transitions. [2022-11-02 20:17:44,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.54545454545455) internal successors, (941), 11 states have internal predecessors, (941), 0 states have call successors, (0), 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 20:17:44,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 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 20:17:44,953 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 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 20:17:44,953 INFO L175 Difference]: Start difference. First operand has 280 places, 369 transitions, 5230 flow. Second operand 11 states and 941 transitions. [2022-11-02 20:17:44,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 477 transitions, 8134 flow [2022-11-02 20:17:45,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 477 transitions, 7434 flow, removed 91 selfloop flow, removed 20 redundant places. [2022-11-02 20:17:45,194 INFO L231 Difference]: Finished difference. Result has 257 places, 0 transitions, 0 flow [2022-11-02 20:17:45,194 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4658, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=257, PETRI_TRANSITIONS=0} [2022-11-02 20:17:45,195 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 124 predicate places. [2022-11-02 20:17:45,195 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 0 transitions, 0 flow [2022-11-02 20:17:45,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.83333333333333) internal successors, (970), 12 states have internal predecessors, (970), 0 states have call successors, (0), 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 20:17:45,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-11-02 20:17:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-11-02 20:17:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-11-02 20:17:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-11-02 20:17:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-11-02 20:17:45,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-11-02 20:17:45,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-11-02 20:17:45,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-11-02 20:17:45,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-11-02 20:17:45,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-11-02 20:17:45,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-11-02 20:17:45,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:17:45,201 INFO L444 BasicCegarLoop]: Path program histogram: [12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:45,207 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:17:45,208 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:17:45,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:17:45 BasicIcfg [2022-11-02 20:17:45,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:17:45,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:17:45,214 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:17:45,214 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:17:45,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:03" (3/4) ... [2022-11-02 20:17:45,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:17:45,224 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-02 20:17:45,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-02 20:17:45,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-02 20:17:45,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:17:45,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:17:45,265 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:17:45,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:17:45,266 INFO L158 Benchmark]: Toolchain (without parser) took 43595.67ms. Allocated memory was 94.4MB in the beginning and 872.4MB in the end (delta: 778.0MB). Free memory was 60.1MB in the beginning and 605.7MB in the end (delta: -545.6MB). Peak memory consumption was 232.5MB. Max. memory is 16.1GB. [2022-11-02 20:17:45,266 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 94.4MB. Free memory was 65.6MB in the beginning and 65.6MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:17:45,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.11ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 59.9MB in the beginning and 95.9MB in the end (delta: -36.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:17:45,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.53ms. Allocated memory is still 130.0MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:45,267 INFO L158 Benchmark]: Boogie Preprocessor took 83.21ms. Allocated memory is still 130.0MB. Free memory was 93.8MB in the beginning and 91.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:45,268 INFO L158 Benchmark]: RCFGBuilder took 698.04ms. Allocated memory is still 130.0MB. Free memory was 91.7MB in the beginning and 73.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-02 20:17:45,268 INFO L158 Benchmark]: TraceAbstraction took 41986.11ms. Allocated memory was 130.0MB in the beginning and 872.4MB in the end (delta: 742.4MB). Free memory was 72.9MB in the beginning and 608.8MB in the end (delta: -536.0MB). Peak memory consumption was 209.9MB. Max. memory is 16.1GB. [2022-11-02 20:17:45,269 INFO L158 Benchmark]: Witness Printer took 51.57ms. Allocated memory is still 872.4MB. Free memory was 608.8MB in the beginning and 605.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:17:45,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 94.4MB. Free memory was 65.6MB in the beginning and 65.6MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.11ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 59.9MB in the beginning and 95.9MB in the end (delta: -36.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.53ms. Allocated memory is still 130.0MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.21ms. Allocated memory is still 130.0MB. Free memory was 93.8MB in the beginning and 91.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 698.04ms. Allocated memory is still 130.0MB. Free memory was 91.7MB in the beginning and 73.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 41986.11ms. Allocated memory was 130.0MB in the beginning and 872.4MB in the end (delta: 742.4MB). Free memory was 72.9MB in the beginning and 608.8MB in the end (delta: -536.0MB). Peak memory consumption was 209.9MB. Max. memory is 16.1GB. * Witness Printer took 51.57ms. Allocated memory is still 872.4MB. Free memory was 608.8MB in the beginning and 605.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 198 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 41.7s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 28.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2798 SdHoareTripleChecker+Valid, 10.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2798 mSDsluCounter, 1530 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 849 mSDsCounter, 1611 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9385 IncrementalHoareTripleChecker+Invalid, 10996 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1611 mSolverCounterUnsat, 683 mSDtfsCounter, 9385 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5380occurred in iteration=19, InterpolantAutomatonStates: 206, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 1690 NumberOfCodeBlocks, 1690 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1669 ConstructedInterpolants, 0 QuantifiedInterpolants, 10856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:17:45,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a1820c3-62aa-4578-8446-dffe095d4f0a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE