./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme --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 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:49:05,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:05,238 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:49:05,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:05,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:05,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:05,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:05,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:05,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:05,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:05,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:05,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:05,302 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:05,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:05,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:05,305 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:49:05,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:49:05,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:49:05,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:05,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:05,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:05,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:05,309 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:49:05,310 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:49:05,310 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:49:05,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:05,311 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:05,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:05,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:05,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:05,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:05,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:05,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:05,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:05,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:49:05,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:49:05,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:05,318 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:05,318 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:05,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:05,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:05,319 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_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373 [2023-11-26 11:49:05,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:05,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:05,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:05,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:05,655 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:05,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i [2023-11-26 11:49:09,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:49:09,404 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:49:09,405 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/sv-benchmarks/c/pthread-wmm/mix007.oepc.i [2023-11-26 11:49:09,424 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/data/7baaefdb6/375d1016e63248d0bf06576c45c1e045/FLAGcd80deb14 [2023-11-26 11:49:09,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/data/7baaefdb6/375d1016e63248d0bf06576c45c1e045 [2023-11-26 11:49:09,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:49:09,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:49:09,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:09,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:49:09,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:49:09,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:09" (1/1) ... [2023-11-26 11:49:09,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@663f6de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:09, skipping insertion in model container [2023-11-26 11:49:09,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:09" (1/1) ... [2023-11-26 11:49:09,524 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:10,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:10,200 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:10,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:10,346 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:10,346 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:10,355 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:10,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10 WrapperNode [2023-11-26 11:49:10,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:10,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:10,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:10,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:10,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,470 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 531 [2023-11-26 11:49:10,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:10,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:10,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:10,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:10,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:10,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:10,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:10,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:10,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (1/1) ... [2023-11-26 11:49:10,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:10,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:10,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:10,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07ccb05b-f5a7-4a43-a12d-c5f859b542a6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:49:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:49:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:49:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:49:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-26 11:49:10,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-26 11:49:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-26 11:49:10,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-26 11:49:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-26 11:49:10,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-26 11:49:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-26 11:49:10,668 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-26 11:49:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:49:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:49:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:10,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:10,673 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:49:10,963 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:10,968 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:12,835 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:19,102 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:19,102 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:49:19,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:19 BoogieIcfgContainer [2023-11-26 11:49:19,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:19,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:19,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:19,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:19,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:49:09" (1/3) ... [2023-11-26 11:49:19,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be24ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:19, skipping insertion in model container [2023-11-26 11:49:19,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:10" (2/3) ... [2023-11-26 11:49:19,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be24ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:19, skipping insertion in model container [2023-11-26 11:49:19,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:19" (3/3) ... [2023-11-26 11:49:19,117 INFO L112 eAbstractionObserver]: Analyzing ICFG mix007.oepc.i [2023-11-26 11:49:19,129 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:49:19,142 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:19,142 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 286 error locations. [2023-11-26 11:49:19,143 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:49:19,481 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:49:19,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 429 transitions, 874 flow [2023-11-26 11:49:19,829 INFO L124 PetriNetUnfolderBase]: 3/425 cut-off events. [2023-11-26 11:49:19,830 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:49:19,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 3/425 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2230 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 386. Up to 2 conditions per place. [2023-11-26 11:49:19,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 429 transitions, 874 flow [2023-11-26 11:49:19,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 425 transitions, 862 flow [2023-11-26 11:49:19,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:19,932 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@21e2c2fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:19,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 537 error locations. [2023-11-26 11:49:19,949 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:49:19,950 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2023-11-26 11:49:19,950 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:49:19,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:49:19,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:19,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 533 more)] === [2023-11-26 11:49:19,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:19,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1054338377, now seen corresponding path program 1 times [2023-11-26 11:49:19,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:19,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375169239] [2023-11-26 11:49:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:19,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:20,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:20,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375169239] [2023-11-26 11:49:20,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375169239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:20,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:20,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:49:20,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476083227] [2023-11-26 11:49:20,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:20,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:49:20,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:20,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:49:20,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:49:20,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 429 [2023-11-26 11:49:20,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 425 transitions, 862 flow. Second operand has 2 states, 2 states have (on average 117.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:20,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:49:20,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 429 [2023-11-26 11:49:20,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:49:37,930 INFO L124 PetriNetUnfolderBase]: 11270/37966 cut-off events. [2023-11-26 11:49:37,930 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2023-11-26 11:49:38,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53384 conditions, 37966 events. 11270/37966 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 1263. Compared 521475 event pairs, 11270 based on Foata normal form. 2642/38610 useless extension candidates. Maximal degree in co-relation 53330. Up to 15051 conditions per place. [2023-11-26 11:49:38,259 INFO L140 encePairwiseOnDemand]: 142/429 looper letters, 25 selfloop transitions, 0 changer transitions 0/135 dead transitions. [2023-11-26 11:49:38,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 135 transitions, 332 flow [2023-11-26 11:49:38,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:49:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 11:49:38,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 544 transitions. [2023-11-26 11:49:38,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.634032634032634 [2023-11-26 11:49:38,284 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 544 transitions. [2023-11-26 11:49:38,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 544 transitions. [2023-11-26 11:49:38,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:49:38,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 544 transitions. [2023-11-26 11:49:38,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 272.0) internal successors, (544), 2 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,306 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,308 INFO L175 Difference]: Start difference. First operand has 435 places, 425 transitions, 862 flow. Second operand 2 states and 544 transitions. [2023-11-26 11:49:38,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 135 transitions, 332 flow [2023-11-26 11:49:38,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 135 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:49:38,319 INFO L231 Difference]: Finished difference. Result has 145 places, 135 transitions, 278 flow [2023-11-26 11:49:38,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=429, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=278, PETRI_PLACES=145, PETRI_TRANSITIONS=135} [2023-11-26 11:49:38,327 INFO L281 CegarLoopForPetriNet]: 435 programPoint places, -290 predicate places. [2023-11-26 11:49:38,328 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 135 transitions, 278 flow [2023-11-26 11:49:38,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 117.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:49:38,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:38,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:49:38,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 533 more)] === [2023-11-26 11:49:38,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:38,331 INFO L85 PathProgramCache]: Analyzing trace with hash 562466174, now seen corresponding path program 1 times [2023-11-26 11:49:38,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:38,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078516882] [2023-11-26 11:49:38,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:38,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:38,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:38,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078516882] [2023-11-26 11:49:38,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078516882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:38,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:49:38,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615542818] [2023-11-26 11:49:38,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:38,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:38,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:38,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:38,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:38,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 429 [2023-11-26 11:49:38,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 135 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:49:38,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 429 [2023-11-26 11:49:38,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand