./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/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_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/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_8469a55d-1993-4adb-abb6-4ca5489d35f8/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 e2334be94e5a4379173e8ce9878c152630508647bf4da61c6cf055a5b5360d8e --- 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 21:02:12,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:02:12,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:02:12,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:02:12,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:02:12,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:02:12,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:02:12,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:02:12,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:02:12,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:02:12,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:02:12,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:02:12,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:02:12,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:02:12,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:02:12,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:02:12,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:02:12,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:02:12,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:02:12,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:02:12,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:02:12,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:02:12,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:02:12,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:02:12,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:02:12,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:02:12,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:02:12,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:02:12,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:02:12,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:02:12,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:02:12,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:02:12,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:02:12,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:02:12,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:02:12,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:02:12,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:02:12,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:02:12,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:02:12,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:02:12,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:02:12,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:02:12,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:02:12,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:02:12,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:02:12,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:02:12,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:02:12,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:02:12,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:02:12,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:02:12,388 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:02:12,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:02:12,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:02:12,390 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:02:12,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:02:12,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:02:12,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:02:12,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:02:12,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:02:12,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:02:12,392 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:02:12,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:02:12,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:02:12,392 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:02:12,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:02:12,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:02:12,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:02:12,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:02:12,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:02:12,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:02:12,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:02:12,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:02:12,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:02:12,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:02:12,396 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:02:12,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:02:12,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:02:12,396 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_8469a55d-1993-4adb-abb6-4ca5489d35f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2334be94e5a4379173e8ce9878c152630508647bf4da61c6cf055a5b5360d8e [2022-11-02 21:02:12,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:02:12,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:02:12,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:02:12,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:02:12,812 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:02:12,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread/stateful01-2.i [2022-11-02 21:02:12,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/data/917d90355/f38e5fbe0305439c8389ff09b0c4a228/FLAG324764dfc [2022-11-02 21:02:13,560 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:02:13,560 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/sv-benchmarks/c/pthread/stateful01-2.i [2022-11-02 21:02:13,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/data/917d90355/f38e5fbe0305439c8389ff09b0c4a228/FLAG324764dfc [2022-11-02 21:02:13,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/data/917d90355/f38e5fbe0305439c8389ff09b0c4a228 [2022-11-02 21:02:13,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:02:13,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:02:13,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:02:13,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:02:13,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:02:13,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:02:13" (1/1) ... [2022-11-02 21:02:13,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf593d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:13, skipping insertion in model container [2022-11-02 21:02:13,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:02:13" (1/1) ... [2022-11-02 21:02:13,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:02:13,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:02:14,338 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_8469a55d-1993-4adb-abb6-4ca5489d35f8/sv-benchmarks/c/pthread/stateful01-2.i[30826,30839] [2022-11-02 21:02:14,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:02:14,355 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:02:14,422 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_8469a55d-1993-4adb-abb6-4ca5489d35f8/sv-benchmarks/c/pthread/stateful01-2.i[30826,30839] [2022-11-02 21:02:14,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:02:14,476 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:02:14,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14 WrapperNode [2022-11-02 21:02:14,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:02:14,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:02:14,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:02:14,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:02:14,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,550 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2022-11-02 21:02:14,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:02:14,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:02:14,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:02:14,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:02:14,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:02:14,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:02:14,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:02:14,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:02:14,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:02:14,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:02:14,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:02:14,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:02:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:02:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:02:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:02:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:02:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:02:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:02:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:02:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:02:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:02:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:02:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:02:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:02:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:02:14,670 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 21:02:14,795 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:02:14,797 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:02:15,265 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:02:15,274 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:02:15,275 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:02:15,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:02:15 BoogieIcfgContainer [2022-11-02 21:02:15,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:02:15,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:02:15,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:02:15,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:02:15,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:02:13" (1/3) ... [2022-11-02 21:02:15,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff30257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:02:15, skipping insertion in model container [2022-11-02 21:02:15,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14" (2/3) ... [2022-11-02 21:02:15,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff30257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:02:15, skipping insertion in model container [2022-11-02 21:02:15,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:02:15" (3/3) ... [2022-11-02 21:02:15,288 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2022-11-02 21:02:15,298 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:02:15,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:02:15,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-02 21:02:15,312 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:02:15,429 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:02:15,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 158 transitions, 332 flow [2022-11-02 21:02:15,591 INFO L130 PetriNetUnfolder]: 2/156 cut-off events. [2022-11-02 21:02:15,592 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:02:15,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 2/156 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2022-11-02 21:02:15,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 158 transitions, 332 flow [2022-11-02 21:02:15,603 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 139 transitions, 290 flow [2022-11-02 21:02:15,618 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:02:15,637 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;@65c371be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:02:15,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-02 21:02:15,671 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-02 21:02:15,671 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:02:15,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:15,672 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] [2022-11-02 21:02:15,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:15,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:15,679 INFO L85 PathProgramCache]: Analyzing trace with hash -159785531, now seen corresponding path program 1 times [2022-11-02 21:02:15,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:15,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102699556] [2022-11-02 21:02:15,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:15,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:15,998 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 21:02:15,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:15,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102699556] [2022-11-02 21:02:16,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102699556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:16,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:16,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:16,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249154866] [2022-11-02 21:02:16,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:16,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:16,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:16,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:16,067 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 158 [2022-11-02 21:02:16,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 21:02:16,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:16,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 158 [2022-11-02 21:02:16,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:16,337 INFO L130 PetriNetUnfolder]: 48/412 cut-off events. [2022-11-02 21:02:16,337 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-02 21:02:16,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 412 events. 48/412 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1758 event pairs, 48 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 420. Up to 119 conditions per place. [2022-11-02 21:02:16,347 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 22 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2022-11-02 21:02:16,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 138 transitions, 336 flow [2022-11-02 21:02:16,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:16,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:16,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2022-11-02 21:02:16,395 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8818565400843882 [2022-11-02 21:02:16,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 418 transitions. [2022-11-02 21:02:16,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 418 transitions. [2022-11-02 21:02:16,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:16,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 418 transitions. [2022-11-02 21:02:16,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 21:02:16,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:16,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:16,424 INFO L175 Difference]: Start difference. First operand has 146 places, 139 transitions, 290 flow. Second operand 3 states and 418 transitions. [2022-11-02 21:02:16,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 138 transitions, 336 flow [2022-11-02 21:02:16,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 138 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:02:16,435 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 284 flow [2022-11-02 21:02:16,437 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2022-11-02 21:02:16,442 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2022-11-02 21:02:16,443 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 284 flow [2022-11-02 21:02:16,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 21:02:16,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:16,443 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] [2022-11-02 21:02:16,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:02:16,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:16,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:16,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1373294786, now seen corresponding path program 1 times [2022-11-02 21:02:16,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:16,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454848445] [2022-11-02 21:02:16,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:16,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:16,569 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 21:02:16,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:16,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454848445] [2022-11-02 21:02:16,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454848445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:16,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:16,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:16,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984253138] [2022-11-02 21:02:16,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:16,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:16,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:16,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:16,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:16,575 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 158 [2022-11-02 21:02:16,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 21:02:16,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:16,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 158 [2022-11-02 21:02:16,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:16,667 INFO L130 PetriNetUnfolder]: 48/356 cut-off events. [2022-11-02 21:02:16,667 INFO L131 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2022-11-02 21:02:16,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 356 events. 48/356 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1365 event pairs, 48 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 445. Up to 118 conditions per place. [2022-11-02 21:02:16,671 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 21 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2022-11-02 21:02:16,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 137 transitions, 328 flow [2022-11-02 21:02:16,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:16,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 417 transitions. [2022-11-02 21:02:16,674 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.879746835443038 [2022-11-02 21:02:16,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 417 transitions. [2022-11-02 21:02:16,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 417 transitions. [2022-11-02 21:02:16,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:16,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 417 transitions. [2022-11-02 21:02:16,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 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 21:02:16,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:16,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:16,678 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 284 flow. Second operand 3 states and 417 transitions. [2022-11-02 21:02:16,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 137 transitions, 328 flow [2022-11-02 21:02:16,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 137 transitions, 324 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:16,685 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 282 flow [2022-11-02 21:02:16,685 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2022-11-02 21:02:16,686 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-02 21:02:16,687 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 282 flow [2022-11-02 21:02:16,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 21:02:16,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:16,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:16,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:02:16,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:16,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:16,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1236581254, now seen corresponding path program 1 times [2022-11-02 21:02:16,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:16,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003334409] [2022-11-02 21:02:16,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:16,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:16,846 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 21:02:16,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:16,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003334409] [2022-11-02 21:02:16,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003334409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:16,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:16,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:16,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526511550] [2022-11-02 21:02:16,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:16,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:16,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:16,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:16,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:16,850 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 158 [2022-11-02 21:02:16,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 21:02:16,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:16,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 158 [2022-11-02 21:02:16,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:17,016 INFO L130 PetriNetUnfolder]: 50/456 cut-off events. [2022-11-02 21:02:17,016 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-02 21:02:17,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 456 events. 50/456 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2108 event pairs, 15 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 543. Up to 76 conditions per place. [2022-11-02 21:02:17,020 INFO L137 encePairwiseOnDemand]: 148/158 looper letters, 25 selfloop transitions, 7 changer transitions 0/148 dead transitions. [2022-11-02 21:02:17,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 148 transitions, 370 flow [2022-11-02 21:02:17,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2022-11-02 21:02:17,022 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9219409282700421 [2022-11-02 21:02:17,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2022-11-02 21:02:17,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2022-11-02 21:02:17,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:17,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2022-11-02 21:02:17,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 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 21:02:17,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:17,026 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:17,026 INFO L175 Difference]: Start difference. First operand has 142 places, 137 transitions, 282 flow. Second operand 3 states and 437 transitions. [2022-11-02 21:02:17,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 148 transitions, 370 flow [2022-11-02 21:02:17,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 148 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:17,030 INFO L231 Difference]: Finished difference. Result has 143 places, 142 transitions, 332 flow [2022-11-02 21:02:17,031 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=143, PETRI_TRANSITIONS=142} [2022-11-02 21:02:17,031 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2022-11-02 21:02:17,031 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 142 transitions, 332 flow [2022-11-02 21:02:17,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 21:02:17,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:17,032 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] [2022-11-02 21:02:17,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:02:17,033 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:17,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:17,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1172464604, now seen corresponding path program 1 times [2022-11-02 21:02:17,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:17,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839730420] [2022-11-02 21:02:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:17,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:17,115 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 21:02:17,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:17,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839730420] [2022-11-02 21:02:17,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839730420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:17,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:17,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:17,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435648913] [2022-11-02 21:02:17,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:17,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:17,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:17,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:17,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:17,119 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-11-02 21:02:17,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 142 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 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 21:02:17,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:17,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-11-02 21:02:17,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:17,300 INFO L130 PetriNetUnfolder]: 69/589 cut-off events. [2022-11-02 21:02:17,301 INFO L131 PetriNetUnfolder]: For 113/116 co-relation queries the response was YES. [2022-11-02 21:02:17,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 589 events. 69/589 cut-off events. For 113/116 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3231 event pairs, 32 based on Foata normal form. 2/520 useless extension candidates. Maximal degree in co-relation 636. Up to 133 conditions per place. [2022-11-02 21:02:17,306 INFO L137 encePairwiseOnDemand]: 152/158 looper letters, 32 selfloop transitions, 7 changer transitions 0/153 dead transitions. [2022-11-02 21:02:17,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 153 transitions, 451 flow [2022-11-02 21:02:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:17,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:17,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2022-11-02 21:02:17,326 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9029535864978903 [2022-11-02 21:02:17,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2022-11-02 21:02:17,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2022-11-02 21:02:17,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:17,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2022-11-02 21:02:17,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 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 21:02:17,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:17,334 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:17,334 INFO L175 Difference]: Start difference. First operand has 143 places, 142 transitions, 332 flow. Second operand 3 states and 428 transitions. [2022-11-02 21:02:17,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 153 transitions, 451 flow [2022-11-02 21:02:17,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 153 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:17,341 INFO L231 Difference]: Finished difference. Result has 145 places, 147 transitions, 374 flow [2022-11-02 21:02:17,342 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=145, PETRI_TRANSITIONS=147} [2022-11-02 21:02:17,343 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -1 predicate places. [2022-11-02 21:02:17,349 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 147 transitions, 374 flow [2022-11-02 21:02:17,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 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 21:02:17,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:17,350 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] [2022-11-02 21:02:17,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:02:17,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:17,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:17,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1587444120, now seen corresponding path program 1 times [2022-11-02 21:02:17,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:17,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805852866] [2022-11-02 21:02:17,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:17,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:17,987 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 21:02:17,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:17,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805852866] [2022-11-02 21:02:17,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805852866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:17,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:17,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:02:17,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118059435] [2022-11-02 21:02:17,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:17,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:02:17,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:17,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:02:17,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:02:17,998 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 158 [2022-11-02 21:02:18,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 147 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 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 21:02:18,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:18,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 158 [2022-11-02 21:02:18,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:18,152 INFO L130 PetriNetUnfolder]: 19/354 cut-off events. [2022-11-02 21:02:18,152 INFO L131 PetriNetUnfolder]: For 51/78 co-relation queries the response was YES. [2022-11-02 21:02:18,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 354 events. 19/354 cut-off events. For 51/78 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1480 event pairs, 4 based on Foata normal form. 16/337 useless extension candidates. Maximal degree in co-relation 352. Up to 31 conditions per place. [2022-11-02 21:02:18,157 INFO L137 encePairwiseOnDemand]: 153/158 looper letters, 15 selfloop transitions, 4 changer transitions 0/146 dead transitions. [2022-11-02 21:02:18,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 146 transitions, 410 flow [2022-11-02 21:02:18,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:02:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:02:18,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 824 transitions. [2022-11-02 21:02:18,160 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.869198312236287 [2022-11-02 21:02:18,160 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 824 transitions. [2022-11-02 21:02:18,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 824 transitions. [2022-11-02 21:02:18,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:18,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 824 transitions. [2022-11-02 21:02:18,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.33333333333334) internal successors, (824), 6 states have internal predecessors, (824), 0 states have call successors, (0), 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 21:02:18,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 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 21:02:18,168 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 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 21:02:18,168 INFO L175 Difference]: Start difference. First operand has 145 places, 147 transitions, 374 flow. Second operand 6 states and 824 transitions. [2022-11-02 21:02:18,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 146 transitions, 410 flow [2022-11-02 21:02:18,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 146 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:18,176 INFO L231 Difference]: Finished difference. Result has 147 places, 146 transitions, 366 flow [2022-11-02 21:02:18,176 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=366, PETRI_PLACES=147, PETRI_TRANSITIONS=146} [2022-11-02 21:02:18,181 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2022-11-02 21:02:18,181 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 146 transitions, 366 flow [2022-11-02 21:02:18,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 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 21:02:18,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:18,183 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] [2022-11-02 21:02:18,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:02:18,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:18,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:18,189 INFO L85 PathProgramCache]: Analyzing trace with hash 66900791, now seen corresponding path program 1 times [2022-11-02 21:02:18,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:18,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172507981] [2022-11-02 21:02:18,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:18,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:18,281 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 21:02:18,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:18,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172507981] [2022-11-02 21:02:18,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172507981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:18,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:18,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:18,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300312288] [2022-11-02 21:02:18,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:18,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:18,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:18,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:18,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:18,287 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-11-02 21:02:18,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 146 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 21:02:18,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:18,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-11-02 21:02:18,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:18,443 INFO L130 PetriNetUnfolder]: 76/558 cut-off events. [2022-11-02 21:02:18,444 INFO L131 PetriNetUnfolder]: For 106/108 co-relation queries the response was YES. [2022-11-02 21:02:18,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 558 events. 76/558 cut-off events. For 106/108 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2930 event pairs, 28 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 777. Up to 137 conditions per place. [2022-11-02 21:02:18,452 INFO L137 encePairwiseOnDemand]: 152/158 looper letters, 35 selfloop transitions, 9 changer transitions 0/158 dead transitions. [2022-11-02 21:02:18,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 158 transitions, 501 flow [2022-11-02 21:02:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:18,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2022-11-02 21:02:18,454 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9029535864978903 [2022-11-02 21:02:18,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2022-11-02 21:02:18,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2022-11-02 21:02:18,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:18,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2022-11-02 21:02:18,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 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 21:02:18,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:18,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:18,463 INFO L175 Difference]: Start difference. First operand has 147 places, 146 transitions, 366 flow. Second operand 3 states and 428 transitions. [2022-11-02 21:02:18,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 158 transitions, 501 flow [2022-11-02 21:02:18,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 158 transitions, 494 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:02:18,470 INFO L231 Difference]: Finished difference. Result has 147 places, 151 transitions, 427 flow [2022-11-02 21:02:18,471 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=147, PETRI_TRANSITIONS=151} [2022-11-02 21:02:18,474 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2022-11-02 21:02:18,474 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 151 transitions, 427 flow [2022-11-02 21:02:18,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 21:02:18,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:18,475 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 21:02:18,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:02:18,476 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:18,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:18,476 INFO L85 PathProgramCache]: Analyzing trace with hash -537529267, now seen corresponding path program 1 times [2022-11-02 21:02:18,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:18,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170961911] [2022-11-02 21:02:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:18,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:18,528 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 21:02:18,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:18,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170961911] [2022-11-02 21:02:18,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170961911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:18,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:18,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196360222] [2022-11-02 21:02:18,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:18,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:18,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:18,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:18,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:18,532 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 158 [2022-11-02 21:02:18,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 151 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 21:02:18,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:18,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 158 [2022-11-02 21:02:18,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:18,671 INFO L130 PetriNetUnfolder]: 80/645 cut-off events. [2022-11-02 21:02:18,671 INFO L131 PetriNetUnfolder]: For 160/166 co-relation queries the response was YES. [2022-11-02 21:02:18,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 645 events. 80/645 cut-off events. For 160/166 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3616 event pairs, 27 based on Foata normal form. 1/582 useless extension candidates. Maximal degree in co-relation 882. Up to 108 conditions per place. [2022-11-02 21:02:18,677 INFO L137 encePairwiseOnDemand]: 148/158 looper letters, 23 selfloop transitions, 6 changer transitions 7/162 dead transitions. [2022-11-02 21:02:18,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 162 transitions, 513 flow [2022-11-02 21:02:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2022-11-02 21:02:18,679 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.919831223628692 [2022-11-02 21:02:18,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2022-11-02 21:02:18,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2022-11-02 21:02:18,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:18,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2022-11-02 21:02:18,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:18,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:18,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:18,683 INFO L175 Difference]: Start difference. First operand has 147 places, 151 transitions, 427 flow. Second operand 3 states and 436 transitions. [2022-11-02 21:02:18,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 162 transitions, 513 flow [2022-11-02 21:02:18,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 162 transitions, 495 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:18,688 INFO L231 Difference]: Finished difference. Result has 148 places, 149 transitions, 442 flow [2022-11-02 21:02:18,688 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=148, PETRI_TRANSITIONS=149} [2022-11-02 21:02:18,689 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2022-11-02 21:02:18,689 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 149 transitions, 442 flow [2022-11-02 21:02:18,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 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 21:02:18,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:18,690 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] [2022-11-02 21:02:18,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:02:18,690 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:18,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:18,691 INFO L85 PathProgramCache]: Analyzing trace with hash 421597585, now seen corresponding path program 1 times [2022-11-02 21:02:18,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:18,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360612107] [2022-11-02 21:02:18,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:18,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:18,790 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 21:02:18,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:18,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360612107] [2022-11-02 21:02:18,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360612107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:18,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:18,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:02:18,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999519342] [2022-11-02 21:02:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:18,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:18,794 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 158 [2022-11-02 21:02:18,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 149 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 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 21:02:18,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:18,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 158 [2022-11-02 21:02:18,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:18,883 INFO L130 PetriNetUnfolder]: 12/285 cut-off events. [2022-11-02 21:02:18,883 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-11-02 21:02:18,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 285 events. 12/285 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 837 event pairs, 8 based on Foata normal form. 8/283 useless extension candidates. Maximal degree in co-relation 319. Up to 32 conditions per place. [2022-11-02 21:02:18,886 INFO L137 encePairwiseOnDemand]: 150/158 looper letters, 13 selfloop transitions, 8 changer transitions 0/123 dead transitions. [2022-11-02 21:02:18,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 123 transitions, 346 flow [2022-11-02 21:02:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:18,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2022-11-02 21:02:18,889 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9135021097046413 [2022-11-02 21:02:18,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2022-11-02 21:02:18,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2022-11-02 21:02:18,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:18,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2022-11-02 21:02:18,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 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 21:02:18,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:18,893 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:18,894 INFO L175 Difference]: Start difference. First operand has 148 places, 149 transitions, 442 flow. Second operand 3 states and 433 transitions. [2022-11-02 21:02:18,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 123 transitions, 346 flow [2022-11-02 21:02:18,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 123 transitions, 294 flow, removed 10 selfloop flow, removed 10 redundant places. [2022-11-02 21:02:18,901 INFO L231 Difference]: Finished difference. Result has 127 places, 121 transitions, 262 flow [2022-11-02 21:02:18,901 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=127, PETRI_TRANSITIONS=121} [2022-11-02 21:02:18,904 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -19 predicate places. [2022-11-02 21:02:18,904 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 121 transitions, 262 flow [2022-11-02 21:02:18,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 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 21:02:18,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:18,905 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] [2022-11-02 21:02:18,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:02:18,906 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:18,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:18,907 INFO L85 PathProgramCache]: Analyzing trace with hash -935353269, now seen corresponding path program 1 times [2022-11-02 21:02:18,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:18,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803581018] [2022-11-02 21:02:18,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:18,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:19,003 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 21:02:19,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:19,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803581018] [2022-11-02 21:02:19,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803581018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:19,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:19,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:19,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135833] [2022-11-02 21:02:19,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:19,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:19,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:19,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:19,007 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-11-02 21:02:19,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 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 21:02:19,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:19,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-11-02 21:02:19,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:19,077 INFO L130 PetriNetUnfolder]: 15/302 cut-off events. [2022-11-02 21:02:19,078 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 21:02:19,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 302 events. 15/302 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 921 event pairs, 13 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 246. Up to 52 conditions per place. [2022-11-02 21:02:19,080 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 15 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-11-02 21:02:19,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 121 transitions, 297 flow [2022-11-02 21:02:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2022-11-02 21:02:19,082 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8734177215189873 [2022-11-02 21:02:19,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2022-11-02 21:02:19,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2022-11-02 21:02:19,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:19,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2022-11-02 21:02:19,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 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 21:02:19,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:19,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:19,087 INFO L175 Difference]: Start difference. First operand has 127 places, 121 transitions, 262 flow. Second operand 3 states and 414 transitions. [2022-11-02 21:02:19,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 121 transitions, 297 flow [2022-11-02 21:02:19,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 121 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:02:19,091 INFO L231 Difference]: Finished difference. Result has 127 places, 120 transitions, 256 flow [2022-11-02 21:02:19,091 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=127, PETRI_TRANSITIONS=120} [2022-11-02 21:02:19,092 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -19 predicate places. [2022-11-02 21:02:19,093 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 120 transitions, 256 flow [2022-11-02 21:02:19,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 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 21:02:19,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:19,094 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 21:02:19,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:02:19,094 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:19,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:19,095 INFO L85 PathProgramCache]: Analyzing trace with hash 309377310, now seen corresponding path program 1 times [2022-11-02 21:02:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:19,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068091774] [2022-11-02 21:02:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:19,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:19,149 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 21:02:19,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:19,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068091774] [2022-11-02 21:02:19,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068091774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:19,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:19,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:19,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111479670] [2022-11-02 21:02:19,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:19,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:19,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:19,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:19,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:19,153 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-11-02 21:02:19,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 120 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 21:02:19,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:19,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-11-02 21:02:19,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:19,210 INFO L130 PetriNetUnfolder]: 14/291 cut-off events. [2022-11-02 21:02:19,210 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-02 21:02:19,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 291 events. 14/291 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 864 event pairs, 12 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 231. Up to 47 conditions per place. [2022-11-02 21:02:19,212 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 14 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2022-11-02 21:02:19,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 120 transitions, 289 flow [2022-11-02 21:02:19,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:19,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2022-11-02 21:02:19,214 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8713080168776371 [2022-11-02 21:02:19,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2022-11-02 21:02:19,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2022-11-02 21:02:19,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:19,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2022-11-02 21:02:19,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 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 21:02:19,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:19,218 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 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 21:02:19,218 INFO L175 Difference]: Start difference. First operand has 127 places, 120 transitions, 256 flow. Second operand 3 states and 413 transitions. [2022-11-02 21:02:19,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 120 transitions, 289 flow [2022-11-02 21:02:19,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 120 transitions, 285 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:19,221 INFO L231 Difference]: Finished difference. Result has 126 places, 119 transitions, 254 flow [2022-11-02 21:02:19,222 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=126, PETRI_TRANSITIONS=119} [2022-11-02 21:02:19,222 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -20 predicate places. [2022-11-02 21:02:19,223 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 119 transitions, 254 flow [2022-11-02 21:02:19,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 21:02:19,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:19,223 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] [2022-11-02 21:02:19,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:02:19,224 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-02 21:02:19,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:19,225 INFO L85 PathProgramCache]: Analyzing trace with hash -225623302, now seen corresponding path program 1 times [2022-11-02 21:02:19,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:19,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634642685] [2022-11-02 21:02:19,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:19,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:19,771 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 21:02:19,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:19,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634642685] [2022-11-02 21:02:19,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634642685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:19,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:19,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:02:19,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292700687] [2022-11-02 21:02:19,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:19,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:02:19,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:19,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:02:19,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:02:19,776 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 158 [2022-11-02 21:02:19,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 119 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 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 21:02:19,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:19,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 158 [2022-11-02 21:02:19,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:19,857 INFO L130 PetriNetUnfolder]: 4/220 cut-off events. [2022-11-02 21:02:19,857 INFO L131 PetriNetUnfolder]: For 2/14 co-relation queries the response was YES. [2022-11-02 21:02:19,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 220 events. 4/220 cut-off events. For 2/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 480 event pairs, 4 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 212. Up to 15 conditions per place. [2022-11-02 21:02:19,858 INFO L137 encePairwiseOnDemand]: 153/158 looper letters, 0 selfloop transitions, 0 changer transitions 118/118 dead transitions. [2022-11-02 21:02:19,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 118 transitions, 286 flow [2022-11-02 21:02:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:02:19,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:02:19,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 822 transitions. [2022-11-02 21:02:19,862 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8670886075949367 [2022-11-02 21:02:19,862 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 822 transitions. [2022-11-02 21:02:19,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 822 transitions. [2022-11-02 21:02:19,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:19,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 822 transitions. [2022-11-02 21:02:19,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 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 21:02:19,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 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 21:02:19,869 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 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 21:02:19,870 INFO L175 Difference]: Start difference. First operand has 126 places, 119 transitions, 254 flow. Second operand 6 states and 822 transitions. [2022-11-02 21:02:19,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 118 transitions, 286 flow [2022-11-02 21:02:19,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 118 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:19,873 INFO L231 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2022-11-02 21:02:19,873 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2022-11-02 21:02:19,874 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -18 predicate places. [2022-11-02 21:02:19,874 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2022-11-02 21:02:19,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 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 21:02:19,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-11-02 21:02:19,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-02 21:02:19,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-02 21:02:19,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-02 21:02:19,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-02 21:02:19,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-02 21:02:19,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-02 21:02:19,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-02 21:02:19,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-11-02 21:02:19,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-02 21:02:19,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-11-02 21:02:19,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-11-02 21:02:19,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-02 21:02:19,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-02 21:02:19,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2022-11-02 21:02:19,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2022-11-02 21:02:19,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-02 21:02:19,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-02 21:02:19,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-02 21:02:19,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-02 21:02:19,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-02 21:02:19,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-02 21:02:19,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-02 21:02:19,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-02 21:02:19,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:02:19,891 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:19,897 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:02:19,897 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:02:19,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:02:19 BasicIcfg [2022-11-02 21:02:19,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:02:19,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:02:19,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:02:19,905 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:02:19,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:02:15" (3/4) ... [2022-11-02 21:02:19,909 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:02:19,916 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 21:02:19,916 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 21:02:19,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-02 21:02:19,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 21:02:19,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 21:02:19,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:02:19,975 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:02:19,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:02:19,976 INFO L158 Benchmark]: Toolchain (without parser) took 6102.42ms. Allocated memory was 104.9MB in the beginning and 195.0MB in the end (delta: 90.2MB). Free memory was 58.4MB in the beginning and 153.7MB in the end (delta: -95.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:02:19,976 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:02:19,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.37ms. Allocated memory is still 104.9MB. Free memory was 58.2MB in the beginning and 67.1MB in the end (delta: -8.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-11-02 21:02:19,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.61ms. Allocated memory is still 104.9MB. Free memory was 67.1MB in the beginning and 64.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:02:19,977 INFO L158 Benchmark]: Boogie Preprocessor took 37.64ms. Allocated memory is still 104.9MB. Free memory was 64.8MB in the beginning and 63.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:02:19,978 INFO L158 Benchmark]: RCFGBuilder took 688.65ms. Allocated memory is still 104.9MB. Free memory was 63.0MB in the beginning and 45.6MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-02 21:02:19,978 INFO L158 Benchmark]: TraceAbstraction took 4623.96ms. Allocated memory was 104.9MB in the beginning and 195.0MB in the end (delta: 90.2MB). Free memory was 45.1MB in the beginning and 155.8MB in the end (delta: -110.7MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2022-11-02 21:02:19,979 INFO L158 Benchmark]: Witness Printer took 69.98ms. Allocated memory is still 195.0MB. Free memory was 155.8MB in the beginning and 153.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:02:19,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.37ms. Allocated memory is still 104.9MB. Free memory was 58.2MB in the beginning and 67.1MB in the end (delta: -8.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.61ms. Allocated memory is still 104.9MB. Free memory was 67.1MB in the beginning and 64.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.64ms. Allocated memory is still 104.9MB. Free memory was 64.8MB in the beginning and 63.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 688.65ms. Allocated memory is still 104.9MB. Free memory was 63.0MB in the beginning and 45.6MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4623.96ms. Allocated memory was 104.9MB in the beginning and 195.0MB in the end (delta: 90.2MB). Free memory was 45.1MB in the beginning and 155.8MB in the end (delta: -110.7MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * Witness Printer took 69.98ms. Allocated memory is still 195.0MB. Free memory was 155.8MB in the beginning and 153.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: 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 5 procedures, 219 locations, 24 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: 4.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 153 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred in iteration=7, InterpolantAutomatonStates: 39, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 667 NumberOfCodeBlocks, 667 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 656 ConstructedInterpolants, 0 QuantifiedInterpolants, 894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 21:02:20,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8469a55d-1993-4adb-abb6-4ca5489d35f8/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE