./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:53,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:53,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:59:53,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:53,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:53,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:53,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:53,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:53,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:53,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:53,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:53,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:53,640 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:53,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:53,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:53,641 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:53,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:53,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:53,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:53,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:53,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:53,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:53,645 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:59:53,646 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:53,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:53,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:53,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:53,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:53,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:53,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:53,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:53,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:53,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:53,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:53,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:53,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:53,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:53,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:53,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:53,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:53,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:53,659 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 [2024-10-31 21:59:53,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:53,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:53,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:53,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:53,988 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:53,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i Unable to find full path for "g++" [2024-10-31 21:59:56,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:56,727 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:56,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2024-10-31 21:59:56,753 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/data/cf74d3f1c/c6332156180745ed9649d76e66f128dd/FLAGbd88eb4e2 [2024-10-31 21:59:56,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/data/cf74d3f1c/c6332156180745ed9649d76e66f128dd [2024-10-31 21:59:56,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:56,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:56,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:56,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:56,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:56,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:56" (1/1) ... [2024-10-31 21:59:56,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388d1346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:56, skipping insertion in model container [2024-10-31 21:59:56,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:56" (1/1) ... [2024-10-31 21:59:56,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:57,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:57,696 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:57,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:57,878 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:57,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57 WrapperNode [2024-10-31 21:59:57,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:57,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:57,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:57,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:57,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,957 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-10-31 21:59:57,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:57,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:57,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:57,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:57,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:58,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:58,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:58,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:58,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:58,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:58,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:58,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:58,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:58,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:58,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:58,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:59:58,080 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:59:58,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 21:59:58,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 21:59:58,081 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:59:58,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:59:58,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:58,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:59:58,081 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 21:59:58,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 21:59:58,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:58,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:58,084 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:59:58,236 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:58,239 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:58,470 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:58,470 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:58,497 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:58,497 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 21:59:58,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:58 BoogieIcfgContainer [2024-10-31 21:59:58,498 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:58,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:58,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:58,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:58,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:56" (1/3) ... [2024-10-31 21:59:58,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7a7a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:58, skipping insertion in model container [2024-10-31 21:59:58,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (2/3) ... [2024-10-31 21:59:58,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7a7a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:58, skipping insertion in model container [2024-10-31 21:59:58,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:58" (3/3) ... [2024-10-31 21:59:58,514 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-2.i [2024-10-31 21:59:58,533 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:58,534 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 21:59:58,534 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:58,625 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:59:58,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 89 transitions, 185 flow [2024-10-31 21:59:58,893 INFO L124 PetriNetUnfolderBase]: 6/123 cut-off events. [2024-10-31 21:59:58,894 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:59:58,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 123 events. 6/123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-10-31 21:59:58,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 89 transitions, 185 flow [2024-10-31 21:59:58,909 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 89 transitions, 185 flow [2024-10-31 21:59:58,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:58,933 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@647ef6c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:58,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-31 21:59:58,951 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:58,952 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 21:59:58,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:58,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:58,953 INFO L204 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] [2024-10-31 21:59:58,954 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 21:59:58,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:58,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1930866065, now seen corresponding path program 1 times [2024-10-31 21:59:58,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:58,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580834205] [2024-10-31 21:59:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:58,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:59,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:59,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580834205] [2024-10-31 21:59:59,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580834205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:59,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:59,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:59,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138644039] [2024-10-31 21:59:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:59,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:59,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:59,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:59,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 89 [2024-10-31 21:59:59,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:59,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:59,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 89 [2024-10-31 21:59:59,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:59,508 INFO L124 PetriNetUnfolderBase]: 8/161 cut-off events. [2024-10-31 21:59:59,508 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-10-31 21:59:59,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 161 events. 8/161 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 410 event pairs, 1 based on Foata normal form. 8/152 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2024-10-31 21:59:59,511 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 8 selfloop transitions, 3 changer transitions 2/90 dead transitions. [2024-10-31 21:59:59,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 211 flow [2024-10-31 21:59:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:59,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-10-31 21:59:59,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9363295880149812 [2024-10-31 21:59:59,532 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 185 flow. Second operand 3 states and 250 transitions. [2024-10-31 21:59:59,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 211 flow [2024-10-31 21:59:59,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:59,545 INFO L231 Difference]: Finished difference. Result has 92 places, 87 transitions, 199 flow [2024-10-31 21:59:59,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2024-10-31 21:59:59,554 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-10-31 21:59:59,555 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 199 flow [2024-10-31 21:59:59,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:59,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:59,557 INFO L204 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] [2024-10-31 21:59:59,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:59,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 21:59:59,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash 894653936, now seen corresponding path program 1 times [2024-10-31 21:59:59,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:59,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987144110] [2024-10-31 21:59:59,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:59,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:00,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:00,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987144110] [2024-10-31 22:00:00,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987144110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:00,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:00,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:00,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593417293] [2024-10-31 22:00:00,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:00,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:00,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:00,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:00,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:00,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 89 [2024-10-31 22:00:00,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:00,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:00,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 89 [2024-10-31 22:00:00,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:00,766 INFO L124 PetriNetUnfolderBase]: 31/242 cut-off events. [2024-10-31 22:00:00,766 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:00:00,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 242 events. 31/242 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1057 event pairs, 5 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 276. Up to 62 conditions per place. [2024-10-31 22:00:00,768 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 24 selfloop transitions, 5 changer transitions 0/94 dead transitions. [2024-10-31 22:00:00,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 271 flow [2024-10-31 22:00:00,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:00,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 414 transitions. [2024-10-31 22:00:00,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7752808988764045 [2024-10-31 22:00:00,773 INFO L175 Difference]: Start difference. First operand has 92 places, 87 transitions, 199 flow. Second operand 6 states and 414 transitions. [2024-10-31 22:00:00,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 271 flow [2024-10-31 22:00:00,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 94 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:00,782 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 201 flow [2024-10-31 22:00:00,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=201, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2024-10-31 22:00:00,784 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-10-31 22:00:00,784 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 201 flow [2024-10-31 22:00:00,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:00,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:00,786 INFO L204 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] [2024-10-31 22:00:00,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:00,787 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:00:00,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2009182366, now seen corresponding path program 1 times [2024-10-31 22:00:00,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620415368] [2024-10-31 22:00:00,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:00,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:00,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620415368] [2024-10-31 22:00:00,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620415368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:00,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:00,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:00,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22779946] [2024-10-31 22:00:00,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:00,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:00,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:00,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:00,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:01,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 89 [2024-10-31 22:00:01,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:01,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:01,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 89 [2024-10-31 22:00:01,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:01,122 INFO L124 PetriNetUnfolderBase]: 17/230 cut-off events. [2024-10-31 22:00:01,122 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:00:01,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 230 events. 17/230 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 814 event pairs, 1 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 227. Up to 49 conditions per place. [2024-10-31 22:00:01,125 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 15 selfloop transitions, 2 changer transitions 5/93 dead transitions. [2024-10-31 22:00:01,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 93 transitions, 259 flow [2024-10-31 22:00:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 449 transitions. [2024-10-31 22:00:01,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8408239700374532 [2024-10-31 22:00:01,128 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 201 flow. Second operand 6 states and 449 transitions. [2024-10-31 22:00:01,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 93 transitions, 259 flow [2024-10-31 22:00:01,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 93 transitions, 249 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:01,135 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 209 flow [2024-10-31 22:00:01,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2024-10-31 22:00:01,138 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-10-31 22:00:01,139 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 209 flow [2024-10-31 22:00:01,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:01,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:01,141 INFO L204 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] [2024-10-31 22:00:01,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:01,141 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:00:01,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:01,142 INFO L85 PathProgramCache]: Analyzing trace with hash -667923900, now seen corresponding path program 1 times [2024-10-31 22:00:01,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:01,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151121063] [2024-10-31 22:00:01,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:01,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:01,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:01,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151121063] [2024-10-31 22:00:01,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151121063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:01,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:01,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:01,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645485880] [2024-10-31 22:00:01,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:01,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:01,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:01,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:01,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:01,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 89 [2024-10-31 22:00:01,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:01,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:01,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 89 [2024-10-31 22:00:01,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:01,263 INFO L124 PetriNetUnfolderBase]: 5/167 cut-off events. [2024-10-31 22:00:01,263 INFO L125 PetriNetUnfolderBase]: For 19/32 co-relation queries the response was YES. [2024-10-31 22:00:01,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 167 events. 5/167 cut-off events. For 19/32 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 475 event pairs, 3 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 187. Up to 25 conditions per place. [2024-10-31 22:00:01,264 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 8 selfloop transitions, 4 changer transitions 3/89 dead transitions. [2024-10-31 22:00:01,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 245 flow [2024-10-31 22:00:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2024-10-31 22:00:01,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9063670411985019 [2024-10-31 22:00:01,267 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 209 flow. Second operand 3 states and 242 transitions. [2024-10-31 22:00:01,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 245 flow [2024-10-31 22:00:01,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 231 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:01,270 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 217 flow [2024-10-31 22:00:01,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2024-10-31 22:00:01,272 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-10-31 22:00:01,272 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 217 flow [2024-10-31 22:00:01,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:01,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:01,273 INFO L204 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] [2024-10-31 22:00:01,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:01,273 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:00:01,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:01,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1285259620, now seen corresponding path program 1 times [2024-10-31 22:00:01,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:01,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862829552] [2024-10-31 22:00:01,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:01,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:01,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:00:01,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:01,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862829552] [2024-10-31 22:00:01,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862829552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:01,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:01,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:01,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402297723] [2024-10-31 22:00:01,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:01,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:01,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:01,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:01,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:01,898 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2024-10-31 22:00:01,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 217 flow. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:01,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:01,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2024-10-31 22:00:01,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:01,982 INFO L124 PetriNetUnfolderBase]: 25/280 cut-off events. [2024-10-31 22:00:01,983 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2024-10-31 22:00:01,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 280 events. 25/280 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1222 event pairs, 15 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 370. Up to 55 conditions per place. [2024-10-31 22:00:01,985 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 12 selfloop transitions, 0 changer transitions 18/93 dead transitions. [2024-10-31 22:00:01,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 93 transitions, 285 flow [2024-10-31 22:00:01,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:01,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:01,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2024-10-31 22:00:01,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7940074906367042 [2024-10-31 22:00:01,988 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 217 flow. Second operand 6 states and 424 transitions. [2024-10-31 22:00:01,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 93 transitions, 285 flow [2024-10-31 22:00:01,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 93 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:01,992 INFO L231 Difference]: Finished difference. Result has 95 places, 75 transitions, 184 flow [2024-10-31 22:00:01,992 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=95, PETRI_TRANSITIONS=75} [2024-10-31 22:00:01,993 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2024-10-31 22:00:01,993 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 75 transitions, 184 flow [2024-10-31 22:00:01,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:01,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:01,994 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:01,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:01,995 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-31 22:00:01,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1012954957, now seen corresponding path program 1 times [2024-10-31 22:00:01,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:01,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330764911] [2024-10-31 22:00:01,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:01,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:02,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:02,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:02,062 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:00:02,063 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-31 22:00:02,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-10-31 22:00:02,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-10-31 22:00:02,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-10-31 22:00:02,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-10-31 22:00:02,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-10-31 22:00:02,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:02,069 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 22:00:02,073 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:00:02,074 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:00:02,100 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:00:02,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 107 transitions, 230 flow [2024-10-31 22:00:02,139 INFO L124 PetriNetUnfolderBase]: 11/206 cut-off events. [2024-10-31 22:00:02,139 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:00:02,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 206 events. 11/206 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 446 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2024-10-31 22:00:02,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 107 transitions, 230 flow [2024-10-31 22:00:02,142 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 230 flow [2024-10-31 22:00:02,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:02,145 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@647ef6c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:02,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:00:02,150 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:02,150 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 22:00:02,151 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:02,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:02,151 INFO L204 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] [2024-10-31 22:00:02,151 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:00:02,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1073777201, now seen corresponding path program 1 times [2024-10-31 22:00:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697450220] [2024-10-31 22:00:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:02,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:02,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697450220] [2024-10-31 22:00:02,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697450220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:02,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:02,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:02,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176612165] [2024-10-31 22:00:02,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:02,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:02,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:02,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:02,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:02,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2024-10-31 22:00:02,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:02,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:02,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2024-10-31 22:00:02,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:02,366 INFO L124 PetriNetUnfolderBase]: 119/719 cut-off events. [2024-10-31 22:00:02,367 INFO L125 PetriNetUnfolderBase]: For 44/68 co-relation queries the response was YES. [2024-10-31 22:00:02,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 719 events. 119/719 cut-off events. For 44/68 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4242 event pairs, 50 based on Foata normal form. 36/670 useless extension candidates. Maximal degree in co-relation 741. Up to 139 conditions per place. [2024-10-31 22:00:02,373 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 16 selfloop transitions, 4 changer transitions 1/111 dead transitions. [2024-10-31 22:00:02,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 278 flow [2024-10-31 22:00:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:02,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:02,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-10-31 22:00:02,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252336448598131 [2024-10-31 22:00:02,375 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 230 flow. Second operand 3 states and 297 transitions. [2024-10-31 22:00:02,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 111 transitions, 278 flow [2024-10-31 22:00:02,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 111 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:02,379 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 252 flow [2024-10-31 22:00:02,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2024-10-31 22:00:02,380 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places. [2024-10-31 22:00:02,381 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 252 flow [2024-10-31 22:00:02,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:02,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:02,382 INFO L204 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] [2024-10-31 22:00:02,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:00:02,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:00:02,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,383 INFO L85 PathProgramCache]: Analyzing trace with hash -76665168, now seen corresponding path program 1 times [2024-10-31 22:00:02,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950841617] [2024-10-31 22:00:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:02,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:02,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950841617] [2024-10-31 22:00:02,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950841617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:02,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:02,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:02,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765874792] [2024-10-31 22:00:02,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:02,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:02,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:02,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:02,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:02,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2024-10-31 22:00:02,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:02,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:02,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2024-10-31 22:00:02,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:03,140 INFO L124 PetriNetUnfolderBase]: 299/1306 cut-off events. [2024-10-31 22:00:03,140 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-10-31 22:00:03,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2039 conditions, 1306 events. 299/1306 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 9787 event pairs, 58 based on Foata normal form. 0/1174 useless extension candidates. Maximal degree in co-relation 1408. Up to 372 conditions per place. [2024-10-31 22:00:03,150 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 36 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2024-10-31 22:00:03,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 121 transitions, 364 flow [2024-10-31 22:00:03,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:03,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2024-10-31 22:00:03,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.794392523364486 [2024-10-31 22:00:03,153 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 252 flow. Second operand 6 states and 510 transitions. [2024-10-31 22:00:03,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 121 transitions, 364 flow [2024-10-31 22:00:03,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 121 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:03,157 INFO L231 Difference]: Finished difference. Result has 112 places, 105 transitions, 252 flow [2024-10-31 22:00:03,157 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=252, PETRI_PLACES=112, PETRI_TRANSITIONS=105} [2024-10-31 22:00:03,158 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 5 predicate places. [2024-10-31 22:00:03,158 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 105 transitions, 252 flow [2024-10-31 22:00:03,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:03,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:03,159 INFO L204 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] [2024-10-31 22:00:03,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:00:03,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:00:03,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1314465826, now seen corresponding path program 1 times [2024-10-31 22:00:03,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333158364] [2024-10-31 22:00:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:03,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:03,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333158364] [2024-10-31 22:00:03,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333158364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:03,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:03,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:03,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834929593] [2024-10-31 22:00:03,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:03,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:03,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:03,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:03,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:03,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2024-10-31 22:00:03,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 105 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:03,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:03,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2024-10-31 22:00:03,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:03,564 INFO L124 PetriNetUnfolderBase]: 179/1195 cut-off events. [2024-10-31 22:00:03,564 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-31 22:00:03,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 1195 events. 179/1195 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8712 event pairs, 75 based on Foata normal form. 1/1082 useless extension candidates. Maximal degree in co-relation 560. Up to 300 conditions per place. [2024-10-31 22:00:03,572 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 20 selfloop transitions, 2 changer transitions 5/113 dead transitions. [2024-10-31 22:00:03,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 113 transitions, 322 flow [2024-10-31 22:00:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:03,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 538 transitions. [2024-10-31 22:00:03,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.838006230529595 [2024-10-31 22:00:03,575 INFO L175 Difference]: Start difference. First operand has 112 places, 105 transitions, 252 flow. Second operand 6 states and 538 transitions. [2024-10-31 22:00:03,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 113 transitions, 322 flow [2024-10-31 22:00:03,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 113 transitions, 312 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:03,578 INFO L231 Difference]: Finished difference. Result has 116 places, 106 transitions, 264 flow [2024-10-31 22:00:03,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=106} [2024-10-31 22:00:03,579 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2024-10-31 22:00:03,579 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 106 transitions, 264 flow [2024-10-31 22:00:03,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:03,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:03,580 INFO L204 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] [2024-10-31 22:00:03,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:00:03,581 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:00:03,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2079582252, now seen corresponding path program 1 times [2024-10-31 22:00:03,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241294278] [2024-10-31 22:00:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:03,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:03,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241294278] [2024-10-31 22:00:03,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241294278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:03,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:03,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:03,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90536914] [2024-10-31 22:00:03,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:03,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:03,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:03,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:03,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:03,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2024-10-31 22:00:03,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 106 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:03,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:03,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2024-10-31 22:00:03,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:03,814 INFO L124 PetriNetUnfolderBase]: 165/981 cut-off events. [2024-10-31 22:00:03,814 INFO L125 PetriNetUnfolderBase]: For 182/299 co-relation queries the response was YES. [2024-10-31 22:00:03,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1597 conditions, 981 events. 165/981 cut-off events. For 182/299 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7175 event pairs, 88 based on Foata normal form. 3/880 useless extension candidates. Maximal degree in co-relation 1539. Up to 269 conditions per place. [2024-10-31 22:00:03,823 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 19 selfloop transitions, 7 changer transitions 0/115 dead transitions. [2024-10-31 22:00:03,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 115 transitions, 348 flow [2024-10-31 22:00:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:03,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2024-10-31 22:00:03,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065420560747663 [2024-10-31 22:00:03,825 INFO L175 Difference]: Start difference. First operand has 116 places, 106 transitions, 264 flow. Second operand 3 states and 291 transitions. [2024-10-31 22:00:03,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 115 transitions, 348 flow [2024-10-31 22:00:03,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 115 transitions, 336 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:00:03,829 INFO L231 Difference]: Finished difference. Result has 113 places, 111 transitions, 308 flow [2024-10-31 22:00:03,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=113, PETRI_TRANSITIONS=111} [2024-10-31 22:00:03,830 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2024-10-31 22:00:03,830 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 111 transitions, 308 flow [2024-10-31 22:00:03,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:03,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:03,831 INFO L204 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] [2024-10-31 22:00:03,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:00:03,832 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:00:03,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1021294111, now seen corresponding path program 1 times [2024-10-31 22:00:03,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562193209] [2024-10-31 22:00:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:00:04,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:04,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562193209] [2024-10-31 22:00:04,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562193209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:04,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:04,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:04,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150077416] [2024-10-31 22:00:04,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:04,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:04,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:04,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:04,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2024-10-31 22:00:04,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 111 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:04,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:04,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2024-10-31 22:00:04,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:04,677 INFO L124 PetriNetUnfolderBase]: 356/1815 cut-off events. [2024-10-31 22:00:04,677 INFO L125 PetriNetUnfolderBase]: For 306/352 co-relation queries the response was YES. [2024-10-31 22:00:04,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 1815 events. 356/1815 cut-off events. For 306/352 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 15341 event pairs, 177 based on Foata normal form. 3/1659 useless extension candidates. Maximal degree in co-relation 2422. Up to 360 conditions per place. [2024-10-31 22:00:04,691 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 34 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2024-10-31 22:00:04,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 126 transitions, 416 flow [2024-10-31 22:00:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2024-10-31 22:00:04,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8099688473520249 [2024-10-31 22:00:04,694 INFO L175 Difference]: Start difference. First operand has 113 places, 111 transitions, 308 flow. Second operand 6 states and 520 transitions. [2024-10-31 22:00:04,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 126 transitions, 416 flow [2024-10-31 22:00:04,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 126 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:04,699 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 302 flow [2024-10-31 22:00:04,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2024-10-31 22:00:04,700 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 8 predicate places. [2024-10-31 22:00:04,700 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 302 flow [2024-10-31 22:00:04,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:04,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:04,701 INFO L204 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] [2024-10-31 22:00:04,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:00:04,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:00:04,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,702 INFO L85 PathProgramCache]: Analyzing trace with hash 179882135, now seen corresponding path program 1 times [2024-10-31 22:00:04,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:04,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478303210] [2024-10-31 22:00:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:04,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478303210] [2024-10-31 22:00:04,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478303210] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:04,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691111116] [2024-10-31 22:00:04,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:04,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:04,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:05,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:05,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691111116] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:05,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:05,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-31 22:00:05,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182825890] [2024-10-31 22:00:05,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:05,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:00:05,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:05,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:00:05,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:00:05,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 107 [2024-10-31 22:00:05,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 302 flow. Second operand has 9 states, 9 states have (on average 85.22222222222223) internal successors, (767), 9 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:05,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:05,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 107 [2024-10-31 22:00:05,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:05,710 INFO L124 PetriNetUnfolderBase]: 161/977 cut-off events. [2024-10-31 22:00:05,710 INFO L125 PetriNetUnfolderBase]: For 131/153 co-relation queries the response was YES. [2024-10-31 22:00:05,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 977 events. 161/977 cut-off events. For 131/153 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6598 event pairs, 35 based on Foata normal form. 0/906 useless extension candidates. Maximal degree in co-relation 952. Up to 157 conditions per place. [2024-10-31 22:00:05,717 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 27 selfloop transitions, 9 changer transitions 9/132 dead transitions. [2024-10-31 22:00:05,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 132 transitions, 440 flow [2024-10-31 22:00:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:00:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:00:05,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 710 transitions. [2024-10-31 22:00:05,720 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294392523364486 [2024-10-31 22:00:05,720 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 302 flow. Second operand 8 states and 710 transitions. [2024-10-31 22:00:05,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 132 transitions, 440 flow [2024-10-31 22:00:05,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 132 transitions, 428 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:05,724 INFO L231 Difference]: Finished difference. Result has 120 places, 111 transitions, 325 flow [2024-10-31 22:00:05,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=325, PETRI_PLACES=120, PETRI_TRANSITIONS=111} [2024-10-31 22:00:05,726 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 13 predicate places. [2024-10-31 22:00:05,726 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 111 transitions, 325 flow [2024-10-31 22:00:05,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 85.22222222222223) internal successors, (767), 9 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:05,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:05,728 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:05,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:00:05,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:05,933 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:00:05,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:05,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1060604224, now seen corresponding path program 1 times [2024-10-31 22:00:05,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:05,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126369956] [2024-10-31 22:00:05,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:05,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,994 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:00:05,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:05,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126369956] [2024-10-31 22:00:05,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126369956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:05,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:05,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:05,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114291230] [2024-10-31 22:00:05,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:05,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:05,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:05,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:05,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:06,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2024-10-31 22:00:06,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 111 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:06,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:06,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2024-10-31 22:00:06,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:06,136 INFO L124 PetriNetUnfolderBase]: 56/601 cut-off events. [2024-10-31 22:00:06,136 INFO L125 PetriNetUnfolderBase]: For 229/290 co-relation queries the response was YES. [2024-10-31 22:00:06,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1036 conditions, 601 events. 56/601 cut-off events. For 229/290 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3609 event pairs, 30 based on Foata normal form. 3/581 useless extension candidates. Maximal degree in co-relation 910. Up to 119 conditions per place. [2024-10-31 22:00:06,140 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 19 selfloop transitions, 7 changer transitions 1/118 dead transitions. [2024-10-31 22:00:06,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 118 transitions, 402 flow [2024-10-31 22:00:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:06,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-10-31 22:00:06,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9034267912772586 [2024-10-31 22:00:06,142 INFO L175 Difference]: Start difference. First operand has 120 places, 111 transitions, 325 flow. Second operand 3 states and 290 transitions. [2024-10-31 22:00:06,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 118 transitions, 402 flow [2024-10-31 22:00:06,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 118 transitions, 396 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:00:06,146 INFO L231 Difference]: Finished difference. Result has 121 places, 114 transitions, 369 flow [2024-10-31 22:00:06,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=121, PETRI_TRANSITIONS=114} [2024-10-31 22:00:06,147 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 14 predicate places. [2024-10-31 22:00:06,147 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 114 transitions, 369 flow [2024-10-31 22:00:06,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:06,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:06,148 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:06,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:00:06,149 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-31 22:00:06,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,149 INFO L85 PathProgramCache]: Analyzing trace with hash -881547959, now seen corresponding path program 1 times [2024-10-31 22:00:06,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:06,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827666573] [2024-10-31 22:00:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:06,186 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:06,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:06,216 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:00:06,216 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-10-31 22:00:06,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-31 22:00:06,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-10-31 22:00:06,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-31 22:00:06,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-31 22:00:06,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-31 22:00:06,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-31 22:00:06,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:00:06,217 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:06,218 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:00:06,218 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:00:06,247 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:00:06,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 125 transitions, 277 flow [2024-10-31 22:00:06,306 INFO L124 PetriNetUnfolderBase]: 21/336 cut-off events. [2024-10-31 22:00:06,306 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 22:00:06,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 336 events. 21/336 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 902 event pairs, 1 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 214. Up to 16 conditions per place. [2024-10-31 22:00:06,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 125 transitions, 277 flow [2024-10-31 22:00:06,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 125 transitions, 277 flow [2024-10-31 22:00:06,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:06,314 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@647ef6c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:06,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:00:06,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:06,319 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 22:00:06,319 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:06,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:06,320 INFO L204 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] [2024-10-31 22:00:06,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:06,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1758380177, now seen corresponding path program 1 times [2024-10-31 22:00:06,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:06,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918134404] [2024-10-31 22:00:06,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:06,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:06,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918134404] [2024-10-31 22:00:06,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918134404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:06,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:06,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:06,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483477321] [2024-10-31 22:00:06,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:06,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:06,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:06,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:06,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:06,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 125 [2024-10-31 22:00:06,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:06,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:06,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 125 [2024-10-31 22:00:06,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:07,075 INFO L124 PetriNetUnfolderBase]: 1071/3960 cut-off events. [2024-10-31 22:00:07,075 INFO L125 PetriNetUnfolderBase]: For 378/483 co-relation queries the response was YES. [2024-10-31 22:00:07,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5875 conditions, 3960 events. 1071/3960 cut-off events. For 378/483 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 35581 event pairs, 542 based on Foata normal form. 179/3698 useless extension candidates. Maximal degree in co-relation 4604. Up to 1110 conditions per place. [2024-10-31 22:00:07,106 INFO L140 encePairwiseOnDemand]: 116/125 looper letters, 23 selfloop transitions, 5 changer transitions 1/132 dead transitions. [2024-10-31 22:00:07,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 132 transitions, 347 flow [2024-10-31 22:00:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:07,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-10-31 22:00:07,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173333333333333 [2024-10-31 22:00:07,108 INFO L175 Difference]: Start difference. First operand has 126 places, 125 transitions, 277 flow. Second operand 3 states and 344 transitions. [2024-10-31 22:00:07,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 132 transitions, 347 flow [2024-10-31 22:00:07,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:07,113 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 307 flow [2024-10-31 22:00:07,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2024-10-31 22:00:07,115 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 4 predicate places. [2024-10-31 22:00:07,115 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 307 flow [2024-10-31 22:00:07,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:07,116 INFO L204 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] [2024-10-31 22:00:07,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:00:07,116 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:07,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,117 INFO L85 PathProgramCache]: Analyzing trace with hash -850124816, now seen corresponding path program 1 times [2024-10-31 22:00:07,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907670929] [2024-10-31 22:00:07,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:07,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:07,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907670929] [2024-10-31 22:00:07,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907670929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:07,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539873259] [2024-10-31 22:00:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:07,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:07,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:07,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 125 [2024-10-31 22:00:07,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:07,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 125 [2024-10-31 22:00:07,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:08,861 INFO L124 PetriNetUnfolderBase]: 2135/6741 cut-off events. [2024-10-31 22:00:08,861 INFO L125 PetriNetUnfolderBase]: For 509/509 co-relation queries the response was YES. [2024-10-31 22:00:08,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10971 conditions, 6741 events. 2135/6741 cut-off events. For 509/509 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 67071 event pairs, 440 based on Foata normal form. 0/5959 useless extension candidates. Maximal degree in co-relation 6909. Up to 2247 conditions per place. [2024-10-31 22:00:08,933 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 48 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-10-31 22:00:08,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 148 transitions, 459 flow [2024-10-31 22:00:08,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:08,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 606 transitions. [2024-10-31 22:00:08,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.808 [2024-10-31 22:00:08,936 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 307 flow. Second operand 6 states and 606 transitions. [2024-10-31 22:00:08,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 148 transitions, 459 flow [2024-10-31 22:00:08,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 148 transitions, 449 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:08,949 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 305 flow [2024-10-31 22:00:08,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2024-10-31 22:00:08,950 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 5 predicate places. [2024-10-31 22:00:08,950 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 305 flow [2024-10-31 22:00:08,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:08,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:08,951 INFO L204 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] [2024-10-31 22:00:08,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:00:08,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:08,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash 541006178, now seen corresponding path program 1 times [2024-10-31 22:00:08,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:08,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579885902] [2024-10-31 22:00:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:08,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:09,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:09,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579885902] [2024-10-31 22:00:09,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579885902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:09,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:09,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:09,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335058020] [2024-10-31 22:00:09,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:09,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:09,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:09,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:09,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:09,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 125 [2024-10-31 22:00:09,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:09,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 125 [2024-10-31 22:00:09,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:10,501 INFO L124 PetriNetUnfolderBase]: 1392/6275 cut-off events. [2024-10-31 22:00:10,501 INFO L125 PetriNetUnfolderBase]: For 268/268 co-relation queries the response was YES. [2024-10-31 22:00:10,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8980 conditions, 6275 events. 1392/6275 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 63462 event pairs, 1074 based on Foata normal form. 1/5612 useless extension candidates. Maximal degree in co-relation 5639. Up to 1837 conditions per place. [2024-10-31 22:00:10,551 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 24 selfloop transitions, 2 changer transitions 5/132 dead transitions. [2024-10-31 22:00:10,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 383 flow [2024-10-31 22:00:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 626 transitions. [2024-10-31 22:00:10,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8346666666666667 [2024-10-31 22:00:10,554 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 305 flow. Second operand 6 states and 626 transitions. [2024-10-31 22:00:10,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 383 flow [2024-10-31 22:00:10,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 132 transitions, 373 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:10,559 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 317 flow [2024-10-31 22:00:10,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=317, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2024-10-31 22:00:10,561 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 9 predicate places. [2024-10-31 22:00:10,561 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 317 flow [2024-10-31 22:00:10,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:10,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:10,562 INFO L204 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] [2024-10-31 22:00:10,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:00:10,562 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:10,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:10,563 INFO L85 PathProgramCache]: Analyzing trace with hash 917682500, now seen corresponding path program 1 times [2024-10-31 22:00:10,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:10,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962512533] [2024-10-31 22:00:10,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:10,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:10,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962512533] [2024-10-31 22:00:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962512533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:10,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:10,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:10,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246928243] [2024-10-31 22:00:10,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:10,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:10,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:10,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:10,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-10-31 22:00:10,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:10,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:10,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-10-31 22:00:10,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:11,955 INFO L124 PetriNetUnfolderBase]: 1740/6509 cut-off events. [2024-10-31 22:00:11,955 INFO L125 PetriNetUnfolderBase]: For 1635/2354 co-relation queries the response was YES. [2024-10-31 22:00:11,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11100 conditions, 6509 events. 1740/6509 cut-off events. For 1635/2354 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 67622 event pairs, 967 based on Foata normal form. 10/5761 useless extension candidates. Maximal degree in co-relation 11041. Up to 2240 conditions per place. [2024-10-31 22:00:12,013 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 29 selfloop transitions, 9 changer transitions 0/140 dead transitions. [2024-10-31 22:00:12,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 140 transitions, 451 flow [2024-10-31 22:00:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2024-10-31 22:00:12,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9066666666666666 [2024-10-31 22:00:12,015 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 317 flow. Second operand 3 states and 340 transitions. [2024-10-31 22:00:12,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 140 transitions, 451 flow [2024-10-31 22:00:12,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 140 transitions, 439 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:00:12,035 INFO L231 Difference]: Finished difference. Result has 132 places, 132 transitions, 381 flow [2024-10-31 22:00:12,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=132, PETRI_TRANSITIONS=132} [2024-10-31 22:00:12,036 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 6 predicate places. [2024-10-31 22:00:12,036 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 132 transitions, 381 flow [2024-10-31 22:00:12,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:12,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:12,037 INFO L204 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] [2024-10-31 22:00:12,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:00:12,038 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:12,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,038 INFO L85 PathProgramCache]: Analyzing trace with hash 161140844, now seen corresponding path program 1 times [2024-10-31 22:00:12,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622085691] [2024-10-31 22:00:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:00:12,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622085691] [2024-10-31 22:00:12,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622085691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:12,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:12,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:12,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889789532] [2024-10-31 22:00:12,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:12,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:12,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:12,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:12,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:12,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 125 [2024-10-31 22:00:12,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 132 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:12,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:12,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 125 [2024-10-31 22:00:12,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:14,361 INFO L124 PetriNetUnfolderBase]: 2856/10331 cut-off events. [2024-10-31 22:00:14,362 INFO L125 PetriNetUnfolderBase]: For 1730/2294 co-relation queries the response was YES. [2024-10-31 22:00:14,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17463 conditions, 10331 events. 2856/10331 cut-off events. For 1730/2294 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 114378 event pairs, 1400 based on Foata normal form. 17/9184 useless extension candidates. Maximal degree in co-relation 13963. Up to 2139 conditions per place. [2024-10-31 22:00:14,449 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 46 selfloop transitions, 5 changer transitions 0/155 dead transitions. [2024-10-31 22:00:14,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 155 transitions, 529 flow [2024-10-31 22:00:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 616 transitions. [2024-10-31 22:00:14,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8213333333333334 [2024-10-31 22:00:14,452 INFO L175 Difference]: Start difference. First operand has 132 places, 132 transitions, 381 flow. Second operand 6 states and 616 transitions. [2024-10-31 22:00:14,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 155 transitions, 529 flow [2024-10-31 22:00:14,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 155 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:14,463 INFO L231 Difference]: Finished difference. Result has 134 places, 131 transitions, 371 flow [2024-10-31 22:00:14,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=134, PETRI_TRANSITIONS=131} [2024-10-31 22:00:14,464 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2024-10-31 22:00:14,464 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 131 transitions, 371 flow [2024-10-31 22:00:14,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:14,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:14,465 INFO L204 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] [2024-10-31 22:00:14,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:00:14,465 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:14,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:14,467 INFO L85 PathProgramCache]: Analyzing trace with hash 694988840, now seen corresponding path program 1 times [2024-10-31 22:00:14,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:14,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183956494] [2024-10-31 22:00:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:14,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:14,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:14,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183956494] [2024-10-31 22:00:14,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183956494] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:14,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596494003] [2024-10-31 22:00:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:14,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:14,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:00:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:14,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:14,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:14,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596494003] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:14,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:14,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-31 22:00:14,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140979212] [2024-10-31 22:00:14,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:14,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:00:14,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:14,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:00:14,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:00:15,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 125 [2024-10-31 22:00:15,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 371 flow. Second operand has 9 states, 9 states have (on average 99.22222222222223) internal successors, (893), 9 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:15,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:15,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 125 [2024-10-31 22:00:15,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:16,022 INFO L124 PetriNetUnfolderBase]: 1459/6147 cut-off events. [2024-10-31 22:00:16,022 INFO L125 PetriNetUnfolderBase]: For 935/1162 co-relation queries the response was YES. [2024-10-31 22:00:16,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10404 conditions, 6147 events. 1459/6147 cut-off events. For 935/1162 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 62125 event pairs, 454 based on Foata normal form. 1/5513 useless extension candidates. Maximal degree in co-relation 5059. Up to 1044 conditions per place. [2024-10-31 22:00:16,167 INFO L140 encePairwiseOnDemand]: 115/125 looper letters, 48 selfloop transitions, 10 changer transitions 0/163 dead transitions. [2024-10-31 22:00:16,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 163 transitions, 562 flow [2024-10-31 22:00:16,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:00:16,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:00:16,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 835 transitions. [2024-10-31 22:00:16,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.835 [2024-10-31 22:00:16,171 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 371 flow. Second operand 8 states and 835 transitions. [2024-10-31 22:00:16,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 163 transitions, 562 flow [2024-10-31 22:00:16,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 163 transitions, 550 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:16,179 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 405 flow [2024-10-31 22:00:16,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=405, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2024-10-31 22:00:16,180 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 13 predicate places. [2024-10-31 22:00:16,180 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 405 flow [2024-10-31 22:00:16,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 99.22222222222223) internal successors, (893), 9 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:16,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:16,182 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:16,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:16,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6720dcb6-d5b9-4b1d-86fa-bae80b80236c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:16,384 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:16,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:16,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2119836893, now seen corresponding path program 1 times [2024-10-31 22:00:16,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:16,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628086798] [2024-10-31 22:00:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:16,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:16,435 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:00:16,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:16,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628086798] [2024-10-31 22:00:16,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628086798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:16,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:16,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:16,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118276597] [2024-10-31 22:00:16,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:16,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:16,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:16,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:16,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:16,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-10-31 22:00:16,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:16,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:16,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-10-31 22:00:16,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:17,322 INFO L124 PetriNetUnfolderBase]: 1088/4747 cut-off events. [2024-10-31 22:00:17,322 INFO L125 PetriNetUnfolderBase]: For 2578/2820 co-relation queries the response was YES. [2024-10-31 22:00:17,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9139 conditions, 4747 events. 1088/4747 cut-off events. For 2578/2820 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 49421 event pairs, 589 based on Foata normal form. 7/4392 useless extension candidates. Maximal degree in co-relation 8357. Up to 1450 conditions per place. [2024-10-31 22:00:17,358 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 31 selfloop transitions, 13 changer transitions 0/150 dead transitions. [2024-10-31 22:00:17,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 150 transitions, 566 flow [2024-10-31 22:00:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:17,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2024-10-31 22:00:17,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.904 [2024-10-31 22:00:17,360 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 405 flow. Second operand 3 states and 339 transitions. [2024-10-31 22:00:17,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 150 transitions, 566 flow [2024-10-31 22:00:17,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 150 transitions, 560 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:00:17,369 INFO L231 Difference]: Finished difference. Result has 140 places, 143 transitions, 517 flow [2024-10-31 22:00:17,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=140, PETRI_TRANSITIONS=143} [2024-10-31 22:00:17,370 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2024-10-31 22:00:17,370 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 143 transitions, 517 flow [2024-10-31 22:00:17,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:17,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:17,371 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:17,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-31 22:00:17,371 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:17,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1392824919, now seen corresponding path program 1 times [2024-10-31 22:00:17,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907201873] [2024-10-31 22:00:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,462 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:00:17,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:17,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907201873] [2024-10-31 22:00:17,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907201873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:17,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:17,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:17,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398563863] [2024-10-31 22:00:17,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:17,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:17,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:17,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:17,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:17,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 125 [2024-10-31 22:00:17,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 143 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:17,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:17,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 125 [2024-10-31 22:00:17,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:17,737 INFO L124 PetriNetUnfolderBase]: 124/1629 cut-off events. [2024-10-31 22:00:17,737 INFO L125 PetriNetUnfolderBase]: For 736/839 co-relation queries the response was YES. [2024-10-31 22:00:17,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2799 conditions, 1629 events. 124/1629 cut-off events. For 736/839 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 13490 event pairs, 20 based on Foata normal form. 21/1580 useless extension candidates. Maximal degree in co-relation 1118. Up to 142 conditions per place. [2024-10-31 22:00:17,746 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 12 selfloop transitions, 6 changer transitions 0/138 dead transitions. [2024-10-31 22:00:17,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 490 flow [2024-10-31 22:00:17,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:17,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:17,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-10-31 22:00:17,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.928 [2024-10-31 22:00:17,748 INFO L175 Difference]: Start difference. First operand has 140 places, 143 transitions, 517 flow. Second operand 3 states and 348 transitions. [2024-10-31 22:00:17,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 490 flow [2024-10-31 22:00:17,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 138 transitions, 476 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:17,753 INFO L231 Difference]: Finished difference. Result has 140 places, 133 transitions, 421 flow [2024-10-31 22:00:17,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=421, PETRI_PLACES=140, PETRI_TRANSITIONS=133} [2024-10-31 22:00:17,754 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2024-10-31 22:00:17,754 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 133 transitions, 421 flow [2024-10-31 22:00:17,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:17,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:17,755 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:17,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-31 22:00:17,755 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:17,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1765073251, now seen corresponding path program 1 times [2024-10-31 22:00:17,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:17,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666322476] [2024-10-31 22:00:17,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:17,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:00:17,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:17,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666322476] [2024-10-31 22:00:17,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666322476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:17,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:17,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:17,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600284498] [2024-10-31 22:00:17,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:17,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:17,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:17,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:17,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:17,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-10-31 22:00:17,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 133 transitions, 421 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:17,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:17,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-10-31 22:00:17,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:18,244 INFO L124 PetriNetUnfolderBase]: 203/1827 cut-off events. [2024-10-31 22:00:18,244 INFO L125 PetriNetUnfolderBase]: For 1356/1421 co-relation queries the response was YES. [2024-10-31 22:00:18,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3538 conditions, 1827 events. 203/1827 cut-off events. For 1356/1421 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 15943 event pairs, 134 based on Foata normal form. 3/1739 useless extension candidates. Maximal degree in co-relation 2957. Up to 435 conditions per place. [2024-10-31 22:00:18,251 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 25 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2024-10-31 22:00:18,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 503 flow [2024-10-31 22:00:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:18,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2024-10-31 22:00:18,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8853333333333333 [2024-10-31 22:00:18,253 INFO L175 Difference]: Start difference. First operand has 140 places, 133 transitions, 421 flow. Second operand 3 states and 332 transitions. [2024-10-31 22:00:18,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 503 flow [2024-10-31 22:00:18,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 497 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:18,258 INFO L231 Difference]: Finished difference. Result has 143 places, 136 transitions, 455 flow [2024-10-31 22:00:18,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=143, PETRI_TRANSITIONS=136} [2024-10-31 22:00:18,259 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 17 predicate places. [2024-10-31 22:00:18,259 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 136 transitions, 455 flow [2024-10-31 22:00:18,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:18,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:18,260 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:18,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-31 22:00:18,261 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-31 22:00:18,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1997245556, now seen corresponding path program 1 times [2024-10-31 22:00:18,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:18,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186367075] [2024-10-31 22:00:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:18,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:18,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:18,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:18,324 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:00:18,325 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-10-31 22:00:18,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-10-31 22:00:18,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-10-31 22:00:18,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-10-31 22:00:18,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-10-31 22:00:18,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-10-31 22:00:18,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-10-31 22:00:18,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-10-31 22:00:18,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-31 22:00:18,327 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:18,329 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:00:18,329 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-31 22:00:18,358 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 22:00:18,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 143 transitions, 326 flow [2024-10-31 22:00:18,439 INFO L124 PetriNetUnfolderBase]: 43/562 cut-off events. [2024-10-31 22:00:18,440 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-10-31 22:00:18,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 562 events. 43/562 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1997 event pairs, 6 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 356. Up to 32 conditions per place. [2024-10-31 22:00:18,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 143 transitions, 326 flow [2024-10-31 22:00:18,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 143 transitions, 326 flow [2024-10-31 22:00:18,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:18,449 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@647ef6c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:18,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-31 22:00:18,454 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:18,454 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-31 22:00:18,455 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:18,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:18,455 INFO L204 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] [2024-10-31 22:00:18,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:00:18,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash 310292303, now seen corresponding path program 1 times [2024-10-31 22:00:18,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:18,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400957629] [2024-10-31 22:00:18,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:18,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:18,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:18,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:18,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400957629] [2024-10-31 22:00:18,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400957629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:18,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:18,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:18,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053456653] [2024-10-31 22:00:18,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:18,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:18,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:18,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:18,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:18,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2024-10-31 22:00:18,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 143 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:18,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:18,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2024-10-31 22:00:18,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:22,252 INFO L124 PetriNetUnfolderBase]: 7859/23223 cut-off events. [2024-10-31 22:00:22,252 INFO L125 PetriNetUnfolderBase]: For 2506/2857 co-relation queries the response was YES. [2024-10-31 22:00:22,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35573 conditions, 23223 events. 7859/23223 cut-off events. For 2506/2857 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 267152 event pairs, 4292 based on Foata normal form. 903/21908 useless extension candidates. Maximal degree in co-relation 28335. Up to 7653 conditions per place. [2024-10-31 22:00:22,482 INFO L140 encePairwiseOnDemand]: 133/143 looper letters, 30 selfloop transitions, 6 changer transitions 1/153 dead transitions. [2024-10-31 22:00:22,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 153 transitions, 418 flow [2024-10-31 22:00:22,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2024-10-31 22:00:22,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9114219114219114 [2024-10-31 22:00:22,484 INFO L175 Difference]: Start difference. First operand has 145 places, 143 transitions, 326 flow. Second operand 3 states and 391 transitions. [2024-10-31 22:00:22,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 153 transitions, 418 flow [2024-10-31 22:00:22,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 153 transitions, 418 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:22,489 INFO L231 Difference]: Finished difference. Result has 149 places, 144 transitions, 364 flow [2024-10-31 22:00:22,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=149, PETRI_TRANSITIONS=144} [2024-10-31 22:00:22,490 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 4 predicate places. [2024-10-31 22:00:22,490 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 144 transitions, 364 flow [2024-10-31 22:00:22,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:22,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:22,491 INFO L204 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] [2024-10-31 22:00:22,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-31 22:00:22,491 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:00:22,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:22,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1425725008, now seen corresponding path program 1 times [2024-10-31 22:00:22,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:22,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725633187] [2024-10-31 22:00:22,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:22,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:22,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:22,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725633187] [2024-10-31 22:00:22,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725633187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:22,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:22,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:22,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671209803] [2024-10-31 22:00:22,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:22,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:22,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:22,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:22,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:22,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 143 [2024-10-31 22:00:22,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 144 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:22,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:22,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 143 [2024-10-31 22:00:22,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand