./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX --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 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:14:31,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:14:31,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:14:31,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:14:31,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:14:31,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:14:31,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:14:31,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:14:31,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:14:31,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:14:31,529 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:14:31,530 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:14:31,530 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:14:31,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:14:31,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:14:31,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:14:31,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:14:31,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:14:31,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:14:31,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:14:31,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:14:31,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:14:31,540 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:14:31,540 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:14:31,541 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:14:31,541 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:14:31,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:14:31,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:14:31,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:14:31,542 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:14:31,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:14:31,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:14:31,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:14:31,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:14:31,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:14:31,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:14:31,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:14:31,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:14:31,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:14:31,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:14:31,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:14:31,559 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_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 [2024-11-08 17:14:31,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:14:31,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:14:31,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:14:31,928 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:14:31,929 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:14:31,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i Unable to find full path for "g++" [2024-11-08 17:14:34,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:14:34,318 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:14:34,319 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2024-11-08 17:14:34,339 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/data/3368168c2/a53c9bd2a6bb4dd0934966ff46b487e3/FLAG1ac69b923 [2024-11-08 17:14:34,589 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/data/3368168c2/a53c9bd2a6bb4dd0934966ff46b487e3 [2024-11-08 17:14:34,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:14:34,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:14:34,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:14:34,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:14:34,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:14:34,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:14:34" (1/1) ... [2024-11-08 17:14:34,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3afff6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:34, skipping insertion in model container [2024-11-08 17:14:34,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:14:34" (1/1) ... [2024-11-08 17:14:34,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:14:35,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:14:35,221 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:14:35,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:14:35,346 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:14:35,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35 WrapperNode [2024-11-08 17:14:35,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:14:35,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:14:35,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:14:35,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:14:35,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,406 INFO L138 Inliner]: procedures = 173, calls = 48, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 262 [2024-11-08 17:14:35,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:14:35,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:14:35,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:14:35,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:14:35,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:14:35,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:14:35,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:14:35,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:14:35,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (1/1) ... [2024-11-08 17:14:35,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:14:35,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:14:35,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:14:35,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d53f04-1a87-477a-b121-3f0b4ad42596/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:14:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:14:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 17:14:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 17:14:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:14:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:14:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:14:35,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:14:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 17:14:35,539 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 17:14:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:14:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:14:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:14:35,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:14:35,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:14:35,543 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:14:35,698 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:14:35,701 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:14:36,243 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:14:36,243 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:14:36,294 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:14:36,294 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 17:14:36,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:36 BoogieIcfgContainer [2024-11-08 17:14:36,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:14:36,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:14:36,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:14:36,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:14:36,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:14:34" (1/3) ... [2024-11-08 17:14:36,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ae8166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:14:36, skipping insertion in model container [2024-11-08 17:14:36,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:35" (2/3) ... [2024-11-08 17:14:36,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ae8166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:14:36, skipping insertion in model container [2024-11-08 17:14:36,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:36" (3/3) ... [2024-11-08 17:14:36,335 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2024-11-08 17:14:36,373 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:14:36,374 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-08 17:14:36,374 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:14:36,482 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 17:14:36,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 286 transitions, 592 flow [2024-11-08 17:14:36,805 INFO L124 PetriNetUnfolderBase]: 61/555 cut-off events. [2024-11-08 17:14:36,806 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 17:14:36,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 555 events. 61/555 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2764 event pairs, 0 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 303. Up to 8 conditions per place. [2024-11-08 17:14:36,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 286 transitions, 592 flow [2024-11-08 17:14:36,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 286 transitions, 592 flow [2024-11-08 17:14:36,845 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:14:36,857 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;@5ea5f43e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:14:36,857 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-08 17:14:36,871 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:14:36,871 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2024-11-08 17:14:36,871 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:14:36,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:36,872 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] [2024-11-08 17:14:36,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 17:14:36,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:36,879 INFO L85 PathProgramCache]: Analyzing trace with hash -489984013, now seen corresponding path program 1 times [2024-11-08 17:14:36,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:36,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591786161] [2024-11-08 17:14:36,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:36,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:37,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:37,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591786161] [2024-11-08 17:14:37,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591786161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:37,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:37,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:14:37,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571697862] [2024-11-08 17:14:37,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:37,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:14:37,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:37,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:14:37,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:14:38,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 286 [2024-11-08 17:14:38,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 286 transitions, 592 flow. Second operand has 6 states, 6 states have (on average 213.5) internal successors, (1281), 6 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:38,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:38,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 286 [2024-11-08 17:14:38,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:41,663 INFO L124 PetriNetUnfolderBase]: 2664/15237 cut-off events. [2024-11-08 17:14:41,664 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-08 17:14:41,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19356 conditions, 15237 events. 2664/15237 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 195908 event pairs, 2367 based on Foata normal form. 2755/16506 useless extension candidates. Maximal degree in co-relation 17583. Up to 3955 conditions per place. [2024-11-08 17:14:41,808 INFO L140 encePairwiseOnDemand]: 256/286 looper letters, 74 selfloop transitions, 5 changer transitions 0/289 dead transitions. [2024-11-08 17:14:41,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 289 transitions, 756 flow [2024-11-08 17:14:41,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:14:41,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:14:41,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2024-11-08 17:14:41,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8298368298368298 [2024-11-08 17:14:41,834 INFO L175 Difference]: Start difference. First operand has 257 places, 286 transitions, 592 flow. Second operand 6 states and 1424 transitions. [2024-11-08 17:14:41,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 289 transitions, 756 flow [2024-11-08 17:14:41,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 289 transitions, 756 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:14:41,851 INFO L231 Difference]: Finished difference. Result has 257 places, 257 transitions, 544 flow [2024-11-08 17:14:41,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=544, PETRI_PLACES=257, PETRI_TRANSITIONS=257} [2024-11-08 17:14:41,858 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, 0 predicate places. [2024-11-08 17:14:41,859 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 257 transitions, 544 flow [2024-11-08 17:14:41,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 213.5) internal successors, (1281), 6 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:41,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:41,860 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] [2024-11-08 17:14:41,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:14:41,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 17:14:41,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:41,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1461670812, now seen corresponding path program 1 times [2024-11-08 17:14:41,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:41,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539195200] [2024-11-08 17:14:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:41,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:41,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:41,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539195200] [2024-11-08 17:14:41,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539195200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:41,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:41,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:14:41,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681456000] [2024-11-08 17:14:41,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:41,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:14:41,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:41,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:14:41,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:14:41,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 286 [2024-11-08 17:14:41,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 257 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:41,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:41,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 286 [2024-11-08 17:14:41,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:42,646 INFO L124 PetriNetUnfolderBase]: 399/3079 cut-off events. [2024-11-08 17:14:42,646 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-08 17:14:42,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3749 conditions, 3079 events. 399/3079 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 28267 event pairs, 96 based on Foata normal form. 2/2706 useless extension candidates. Maximal degree in co-relation 3298. Up to 547 conditions per place. [2024-11-08 17:14:42,677 INFO L140 encePairwiseOnDemand]: 282/286 looper letters, 35 selfloop transitions, 2 changer transitions 0/265 dead transitions. [2024-11-08 17:14:42,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 265 transitions, 634 flow [2024-11-08 17:14:42,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:14:42,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:14:42,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 732 transitions. [2024-11-08 17:14:42,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8531468531468531 [2024-11-08 17:14:42,680 INFO L175 Difference]: Start difference. First operand has 257 places, 257 transitions, 544 flow. Second operand 3 states and 732 transitions. [2024-11-08 17:14:42,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 265 transitions, 634 flow [2024-11-08 17:14:42,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 265 transitions, 624 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:14:42,687 INFO L231 Difference]: Finished difference. Result has 255 places, 257 transitions, 544 flow [2024-11-08 17:14:42,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=544, PETRI_PLACES=255, PETRI_TRANSITIONS=257} [2024-11-08 17:14:42,689 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, -2 predicate places. [2024-11-08 17:14:42,689 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 257 transitions, 544 flow [2024-11-08 17:14:42,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:42,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:42,690 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] [2024-11-08 17:14:42,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:14:42,690 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1_funErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 17:14:42,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:42,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1587105540, now seen corresponding path program 1 times [2024-11-08 17:14:42,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:42,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048042001] [2024-11-08 17:14:42,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:42,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:42,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:42,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:42,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048042001] [2024-11-08 17:14:42,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048042001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:42,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:42,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:14:42,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10347510] [2024-11-08 17:14:42,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:42,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:14:42,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:42,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:14:42,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:14:42,797 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 286 [2024-11-08 17:14:42,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 257 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 217.66666666666666) internal successors, (653), 3 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:42,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:42,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 286 [2024-11-08 17:14:42,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:43,841 INFO L124 PetriNetUnfolderBase]: 717/4746 cut-off events. [2024-11-08 17:14:43,841 INFO L125 PetriNetUnfolderBase]: For 500/500 co-relation queries the response was YES. [2024-11-08 17:14:43,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6129 conditions, 4746 events. 717/4746 cut-off events. For 500/500 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 47361 event pairs, 205 based on Foata normal form. 0/4193 useless extension candidates. Maximal degree in co-relation 6071. Up to 626 conditions per place. [2024-11-08 17:14:43,892 INFO L140 encePairwiseOnDemand]: 264/286 looper letters, 65 selfloop transitions, 16 changer transitions 0/294 dead transitions. [2024-11-08 17:14:43,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 294 transitions, 795 flow [2024-11-08 17:14:43,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:14:43,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:14:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2024-11-08 17:14:43,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8566433566433567 [2024-11-08 17:14:43,895 INFO L175 Difference]: Start difference. First operand has 255 places, 257 transitions, 544 flow. Second operand 3 states and 735 transitions. [2024-11-08 17:14:43,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 294 transitions, 795 flow [2024-11-08 17:14:43,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 294 transitions, 791 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:14:43,901 INFO L231 Difference]: Finished difference. Result has 257 places, 273 transitions, 680 flow [2024-11-08 17:14:43,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=257, PETRI_TRANSITIONS=273} [2024-11-08 17:14:43,902 INFO L277 CegarLoopForPetriNet]: 257 programPoint places, 0 predicate places. [2024-11-08 17:14:43,902 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 273 transitions, 680 flow [2024-11-08 17:14:43,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.66666666666666) internal successors, (653), 3 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:43,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:43,904 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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] [2024-11-08 17:14:43,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:14:43,904 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 17:14:43,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:43,905 INFO L85 PathProgramCache]: Analyzing trace with hash -821091994, now seen corresponding path program 1 times [2024-11-08 17:14:43,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:43,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144912321] [2024-11-08 17:14:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:43,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:14:43,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:14:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:14:43,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:14:43,975 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:14:43,976 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-08 17:14:43,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-08 17:14:43,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-08 17:14:43,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-08 17:14:43,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-08 17:14:43,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-08 17:14:43,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-08 17:14:43,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-08 17:14:43,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-08 17:14:43,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-08 17:14:43,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-11-08 17:14:43,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-08 17:14:43,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-08 17:14:43,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-08 17:14:43,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-08 17:14:43,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-08 17:14:43,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-08 17:14:43,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-08 17:14:43,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-08 17:14:43,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-08 17:14:43,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-08 17:14:43,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-08 17:14:43,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-08 17:14:43,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-08 17:14:43,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-08 17:14:43,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-08 17:14:43,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:14:43,985 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 17:14:43,988 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:14:43,988 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:14:44,073 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-08 17:14:44,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 405 places, 460 transitions, 964 flow [2024-11-08 17:14:44,588 INFO L124 PetriNetUnfolderBase]: 205/1617 cut-off events. [2024-11-08 17:14:44,588 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-08 17:14:44,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1706 conditions, 1617 events. 205/1617 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10450 event pairs, 2 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 973. Up to 32 conditions per place. [2024-11-08 17:14:44,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 405 places, 460 transitions, 964 flow [2024-11-08 17:14:44,663 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 405 places, 460 transitions, 964 flow [2024-11-08 17:14:44,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:14:44,667 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;@5ea5f43e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:14:44,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-08 17:14:44,680 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:14:44,680 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2024-11-08 17:14:44,680 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:14:44,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:44,681 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] [2024-11-08 17:14:44,681 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-08 17:14:44,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:44,682 INFO L85 PathProgramCache]: Analyzing trace with hash -958093443, now seen corresponding path program 1 times [2024-11-08 17:14:44,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:44,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771958891] [2024-11-08 17:14:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:44,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:45,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:45,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771958891] [2024-11-08 17:14:45,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771958891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:45,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:45,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:14:45,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304194987] [2024-11-08 17:14:45,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:45,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:14:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:14:45,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:14:45,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 460 [2024-11-08 17:14:45,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 460 transitions, 964 flow. Second operand has 6 states, 6 states have (on average 339.5) internal successors, (2037), 6 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:45,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:45,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 460 [2024-11-08 17:14:45,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand