./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB --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 d5289904c0d34e84fc731c9bca51c5d8bc54117a73409b0419290d8896b60d2d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:20:57,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:20:57,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 20:20:57,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:20:57,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:20:57,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:20:57,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:20:57,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:20:57,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:20:57,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:20:57,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:20:57,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:20:57,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:20:57,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:20:57,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:20:57,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:20:57,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:20:57,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:20:57,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:20:57,384 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:20:57,384 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:20:57,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:20:57,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:20:57,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:20:57,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:20:57,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:20:57,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:20:57,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:20:57,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:20:57,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:20:57,386 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB 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 -> d5289904c0d34e84fc731c9bca51c5d8bc54117a73409b0419290d8896b60d2d [2024-11-27 20:20:57,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:20:57,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:20:57,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:20:57,767 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:20:57,767 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:20:57,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i [2024-11-27 20:21:01,428 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/data/f52fb79c5/ae33fd01601b4615a0d756574b6e1a19/FLAG85c3c1229 [2024-11-27 20:21:01,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:21:01,811 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i [2024-11-27 20:21:01,837 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/data/f52fb79c5/ae33fd01601b4615a0d756574b6e1a19/FLAG85c3c1229 [2024-11-27 20:21:01,860 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/data/f52fb79c5/ae33fd01601b4615a0d756574b6e1a19 [2024-11-27 20:21:01,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:21:01,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:21:01,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:21:01,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:21:01,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:21:01,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:21:01" (1/1) ... [2024-11-27 20:21:01,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcfa840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:01, skipping insertion in model container [2024-11-27 20:21:01,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:21:01" (1/1) ... [2024-11-27 20:21:01,915 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:21:02,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:21:02,363 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:21:02,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:21:02,490 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:21:02,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02 WrapperNode [2024-11-27 20:21:02,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:21:02,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:21:02,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:21:02,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:21:02,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,539 INFO L138 Inliner]: procedures = 162, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2024-11-27 20:21:02,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:21:02,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:21:02,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:21:02,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:21:02,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,562 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:21:02,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:21:02,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:21:02,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:21:02,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (1/1) ... [2024-11-27 20:21:02,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:21:02,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:21:02,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:21:02,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d9413f-d6c0-43d6-a54f-d51618fb801a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:21:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-27 20:21:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-27 20:21:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-27 20:21:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-27 20:21:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 20:21:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:21:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:21:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 20:21:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:21:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:21:02,653 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:21:02,801 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:21:02,802 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:21:03,072 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:21:03,073 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:21:03,108 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:21:03,108 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-27 20:21:03,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:21:03 BoogieIcfgContainer [2024-11-27 20:21:03,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:21:03,113 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:21:03,113 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:21:03,123 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:21:03,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:21:01" (1/3) ... [2024-11-27 20:21:03,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703b647e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:21:03, skipping insertion in model container [2024-11-27 20:21:03,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:02" (2/3) ... [2024-11-27 20:21:03,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703b647e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:21:03, skipping insertion in model container [2024-11-27 20:21:03,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:21:03" (3/3) ... [2024-11-27 20:21:03,127 INFO L128 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2024-11-27 20:21:03,150 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:21:03,155 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 31_simple_loop5_vs.i that has 3 procedures, 100 locations, 1 initial locations, 3 loop locations, and 10 error locations. [2024-11-27 20:21:03,155 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:21:03,264 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:21:03,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 106 transitions, 220 flow [2024-11-27 20:21:03,381 INFO L124 PetriNetUnfolderBase]: 7/113 cut-off events. [2024-11-27 20:21:03,384 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:21:03,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 113 events. 7/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 174 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 91. Up to 4 conditions per place. [2024-11-27 20:21:03,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 106 transitions, 220 flow [2024-11-27 20:21:03,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 105 transitions, 217 flow [2024-11-27 20:21:03,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:21:03,428 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;@6fdbde7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:21:03,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-27 20:21:03,468 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:21:03,468 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-27 20:21:03,468 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:21:03,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:03,469 INFO L206 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] [2024-11-27 20:21:03,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 20:21:03,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:03,498 INFO L85 PathProgramCache]: Analyzing trace with hash -165130545, now seen corresponding path program 1 times [2024-11-27 20:21:03,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:03,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742045061] [2024-11-27 20:21:03,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:03,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:03,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:03,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742045061] [2024-11-27 20:21:03,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742045061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:03,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:03,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:03,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785325383] [2024-11-27 20:21:03,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:03,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:21:03,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:03,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:21:03,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:21:03,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2024-11-27 20:21:03,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2024-11-27 20:21:03,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:03,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2024-11-27 20:21:03,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:04,089 INFO L124 PetriNetUnfolderBase]: 49/362 cut-off events. [2024-11-27 20:21:04,089 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-27 20:21:04,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 362 events. 49/362 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1477 event pairs, 19 based on Foata normal form. 69/373 useless extension candidates. Maximal degree in co-relation 450. Up to 66 conditions per place. [2024-11-27 20:21:04,103 INFO L140 encePairwiseOnDemand]: 93/106 looper letters, 16 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2024-11-27 20:21:04,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 242 flow [2024-11-27 20:21:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:21:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:21:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2024-11-27 20:21:04,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9150943396226415 [2024-11-27 20:21:04,137 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 217 flow. Second operand 3 states and 291 transitions. [2024-11-27 20:21:04,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 242 flow [2024-11-27 20:21:04,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 96 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:21:04,155 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 212 flow [2024-11-27 20:21:04,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2024-11-27 20:21:04,165 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2024-11-27 20:21:04,167 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 212 flow [2024-11-27 20:21:04,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2024-11-27 20:21:04,167 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:04,168 INFO L206 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] [2024-11-27 20:21:04,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:21:04,169 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 20:21:04,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:04,174 INFO L85 PathProgramCache]: Analyzing trace with hash 223347089, now seen corresponding path program 1 times [2024-11-27 20:21:04,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:04,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060202915] [2024-11-27 20:21:04,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:04,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:04,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:04,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:04,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060202915] [2024-11-27 20:21:04,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060202915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:04,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:04,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:04,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761843398] [2024-11-27 20:21:04,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:04,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:21:04,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:04,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:21:04,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:21:04,293 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2024-11-27 20:21:04,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2024-11-27 20:21:04,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:04,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2024-11-27 20:21:04,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:04,467 INFO L124 PetriNetUnfolderBase]: 91/603 cut-off events. [2024-11-27 20:21:04,468 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-27 20:21:04,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 603 events. 91/603 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3181 event pairs, 23 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 843. Up to 105 conditions per place. [2024-11-27 20:21:04,479 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 16 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-11-27 20:21:04,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 98 transitions, 269 flow [2024-11-27 20:21:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:21:04,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:21:04,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2024-11-27 20:21:04,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8710691823899371 [2024-11-27 20:21:04,486 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 212 flow. Second operand 3 states and 277 transitions. [2024-11-27 20:21:04,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 98 transitions, 269 flow [2024-11-27 20:21:04,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 98 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:21:04,495 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 232 flow [2024-11-27 20:21:04,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2024-11-27 20:21:04,497 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -9 predicate places. [2024-11-27 20:21:04,497 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 232 flow [2024-11-27 20:21:04,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2024-11-27 20:21:04,498 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:04,498 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-27 20:21:04,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:21:04,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-27 20:21:04,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:04,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1822707575, now seen corresponding path program 1 times [2024-11-27 20:21:04,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:04,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696053931] [2024-11-27 20:21:04,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:21:04,554 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:21:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:21:04,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:21:04,665 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:21:04,666 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-27 20:21:04,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-27 20:21:04,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-27 20:21:04,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-27 20:21:04,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-27 20:21:04,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-27 20:21:04,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-27 20:21:04,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-27 20:21:04,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-27 20:21:04,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-27 20:21:04,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-27 20:21:04,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-27 20:21:04,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-27 20:21:04,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-27 20:21:04,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:21:04,671 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-27 20:21:04,675 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 20:21:04,675 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-27 20:21:04,751 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:21:04,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 175 transitions, 370 flow [2024-11-27 20:21:04,801 INFO L124 PetriNetUnfolderBase]: 9/168 cut-off events. [2024-11-27 20:21:04,802 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:21:04,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 168 events. 9/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 341 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 175. Up to 6 conditions per place. [2024-11-27 20:21:04,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 175 transitions, 370 flow [2024-11-27 20:21:04,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 150 transitions, 313 flow [2024-11-27 20:21:04,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:21:04,813 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;@6fdbde7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:21:04,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-27 20:21:04,823 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:21:04,824 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-11-27 20:21:04,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:21:04,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:04,825 INFO L206 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] [2024-11-27 20:21:04,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-27 20:21:04,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash -257831770, now seen corresponding path program 1 times [2024-11-27 20:21:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:04,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601727853] [2024-11-27 20:21:04,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:04,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:04,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:04,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601727853] [2024-11-27 20:21:04,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601727853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:04,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:04,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:04,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860476448] [2024-11-27 20:21:04,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:04,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:21:04,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:04,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:21:04,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:21:05,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 175 [2024-11-27 20:21:05,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 150 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:21:05,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:05,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 175 [2024-11-27 20:21:05,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:05,874 INFO L124 PetriNetUnfolderBase]: 861/3601 cut-off events. [2024-11-27 20:21:05,875 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2024-11-27 20:21:05,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5109 conditions, 3601 events. 861/3601 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 31945 event pairs, 242 based on Foata normal form. 624/3573 useless extension candidates. Maximal degree in co-relation 5077. Up to 801 conditions per place. [2024-11-27 20:21:05,916 INFO L140 encePairwiseOnDemand]: 156/175 looper letters, 28 selfloop transitions, 8 changer transitions 0/147 dead transitions. [2024-11-27 20:21:05,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 147 transitions, 387 flow [2024-11-27 20:21:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:21:05,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:21:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2024-11-27 20:21:05,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8761904761904762 [2024-11-27 20:21:05,920 INFO L175 Difference]: Start difference. First operand has 151 places, 150 transitions, 313 flow. Second operand 3 states and 460 transitions. [2024-11-27 20:21:05,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 147 transitions, 387 flow [2024-11-27 20:21:05,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 147 transitions, 386 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:21:05,927 INFO L231 Difference]: Finished difference. Result has 139 places, 139 transitions, 344 flow [2024-11-27 20:21:05,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=139, PETRI_TRANSITIONS=139} [2024-11-27 20:21:05,930 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -12 predicate places. [2024-11-27 20:21:05,931 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 139 transitions, 344 flow [2024-11-27 20:21:05,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:21:05,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:05,932 INFO L206 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] [2024-11-27 20:21:05,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:21:05,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-27 20:21:05,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:05,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1331790088, now seen corresponding path program 1 times [2024-11-27 20:21:05,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:05,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258964156] [2024-11-27 20:21:05,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:05,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:06,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:06,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:06,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258964156] [2024-11-27 20:21:06,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258964156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:06,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:06,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:06,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809849625] [2024-11-27 20:21:06,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:06,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:21:06,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:06,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:21:06,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:21:06,063 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 175 [2024-11-27 20:21:06,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:21:06,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:06,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 175 [2024-11-27 20:21:06,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:08,293 INFO L124 PetriNetUnfolderBase]: 2733/10997 cut-off events. [2024-11-27 20:21:08,294 INFO L125 PetriNetUnfolderBase]: For 718/721 co-relation queries the response was YES. [2024-11-27 20:21:08,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16850 conditions, 10997 events. 2733/10997 cut-off events. For 718/721 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 124867 event pairs, 711 based on Foata normal form. 0/9149 useless extension candidates. Maximal degree in co-relation 16817. Up to 2139 conditions per place. [2024-11-27 20:21:08,444 INFO L140 encePairwiseOnDemand]: 164/175 looper letters, 28 selfloop transitions, 8 changer transitions 0/155 dead transitions. [2024-11-27 20:21:08,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 155 transitions, 456 flow [2024-11-27 20:21:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:21:08,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:21:08,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2024-11-27 20:21:08,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8457142857142858 [2024-11-27 20:21:08,447 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 344 flow. Second operand 3 states and 444 transitions. [2024-11-27 20:21:08,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 155 transitions, 456 flow [2024-11-27 20:21:08,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 155 transitions, 440 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:21:08,461 INFO L231 Difference]: Finished difference. Result has 141 places, 147 transitions, 398 flow [2024-11-27 20:21:08,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=141, PETRI_TRANSITIONS=147} [2024-11-27 20:21:08,463 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -10 predicate places. [2024-11-27 20:21:08,463 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 147 transitions, 398 flow [2024-11-27 20:21:08,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:21:08,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:08,464 INFO L206 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] [2024-11-27 20:21:08,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:21:08,464 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-27 20:21:08,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:08,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1263099171, now seen corresponding path program 1 times [2024-11-27 20:21:08,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:08,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666342236] [2024-11-27 20:21:08,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:08,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:08,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:08,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:08,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666342236] [2024-11-27 20:21:08,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666342236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:08,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:08,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:08,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604164951] [2024-11-27 20:21:08,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:08,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:21:08,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:08,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:21:08,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:21:08,587 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2024-11-27 20:21:08,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 147 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2024-11-27 20:21:08,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:08,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2024-11-27 20:21:08,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:10,717 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([481] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][48], [116#L694-1true, 171#true, Black: 177#true, 44#L708-2true, Black: 182#true, 128#L695-5true, 169#true, 187#true, 71#L717-3true, 173#true, 184#(= |#race~b~0| 0)]) [2024-11-27 20:21:10,717 INFO L294 olderBase$Statistics]: this new event has 96 ancestors and is cut-off event [2024-11-27 20:21:10,718 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-11-27 20:21:10,718 INFO L297 olderBase$Statistics]: existing Event has 96 ancestors and is cut-off event [2024-11-27 20:21:10,718 INFO L297 olderBase$Statistics]: existing Event has 96 ancestors and is cut-off event [2024-11-27 20:21:11,216 INFO L124 PetriNetUnfolderBase]: 3513/14365 cut-off events. [2024-11-27 20:21:11,216 INFO L125 PetriNetUnfolderBase]: For 912/917 co-relation queries the response was YES. [2024-11-27 20:21:11,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22707 conditions, 14365 events. 3513/14365 cut-off events. For 912/917 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 171670 event pairs, 1504 based on Foata normal form. 0/12087 useless extension candidates. Maximal degree in co-relation 22673. Up to 3347 conditions per place. [2024-11-27 20:21:11,383 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 21 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-11-27 20:21:11,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 156 transitions, 473 flow [2024-11-27 20:21:11,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:21:11,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:21:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2024-11-27 20:21:11,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2024-11-27 20:21:11,389 INFO L175 Difference]: Start difference. First operand has 141 places, 147 transitions, 398 flow. Second operand 3 states and 450 transitions. [2024-11-27 20:21:11,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 156 transitions, 473 flow [2024-11-27 20:21:11,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 156 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:21:11,405 INFO L231 Difference]: Finished difference. Result has 143 places, 151 transitions, 420 flow [2024-11-27 20:21:11,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=143, PETRI_TRANSITIONS=151} [2024-11-27 20:21:11,406 INFO L279 CegarLoopForPetriNet]: 151 programPoint places, -8 predicate places. [2024-11-27 20:21:11,407 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 151 transitions, 420 flow [2024-11-27 20:21:11,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2024-11-27 20:21:11,408 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:11,408 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:21:11,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:21:11,409 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-27 20:21:11,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:11,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1059136128, now seen corresponding path program 1 times [2024-11-27 20:21:11,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:11,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289398967] [2024-11-27 20:21:11,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:11,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:21:11,444 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:21:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:21:11,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:21:11,477 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:21:11,477 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-27 20:21:11,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-27 20:21:11,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-27 20:21:11,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-27 20:21:11,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-27 20:21:11,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-27 20:21:11,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2024-11-27 20:21:11,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-27 20:21:11,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-27 20:21:11,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-27 20:21:11,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-27 20:21:11,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 32 remaining) [2024-11-27 20:21:11,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-27 20:21:11,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-27 20:21:11,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-27 20:21:11,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-27 20:21:11,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-27 20:21:11,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-27 20:21:11,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-27 20:21:11,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-27 20:21:11,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-27 20:21:11,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-27 20:21:11,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-27 20:21:11,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-27 20:21:11,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-27 20:21:11,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-27 20:21:11,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-27 20:21:11,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-27 20:21:11,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-27 20:21:11,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-27 20:21:11,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-27 20:21:11,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-27 20:21:11,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:21:11,482 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-27 20:21:11,483 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 20:21:11,483 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-27 20:21:11,551 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:21:11,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 244 transitions, 524 flow [2024-11-27 20:21:11,597 INFO L124 PetriNetUnfolderBase]: 11/223 cut-off events. [2024-11-27 20:21:11,598 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-27 20:21:11,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 223 events. 11/223 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 569 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 234. Up to 8 conditions per place. [2024-11-27 20:21:11,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 244 transitions, 524 flow [2024-11-27 20:21:11,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 195 transitions, 411 flow [2024-11-27 20:21:11,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:21:11,610 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;@6fdbde7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:21:11,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-27 20:21:11,616 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:21:11,617 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-27 20:21:11,617 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:21:11,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:11,617 INFO L206 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] [2024-11-27 20:21:11,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-27 20:21:11,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:11,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1591047079, now seen corresponding path program 1 times [2024-11-27 20:21:11,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:11,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095858432] [2024-11-27 20:21:11,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:11,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:11,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:11,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095858432] [2024-11-27 20:21:11,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095858432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:11,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:11,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:11,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651739345] [2024-11-27 20:21:11,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:11,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:21:11,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:11,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:21:11,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:21:11,758 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 244 [2024-11-27 20:21:11,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 195 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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) [2024-11-27 20:21:11,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:11,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 244 [2024-11-27 20:21:11,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:16,314 INFO L124 PetriNetUnfolderBase]: 10763/31322 cut-off events. [2024-11-27 20:21:16,314 INFO L125 PetriNetUnfolderBase]: For 2770/2770 co-relation queries the response was YES. [2024-11-27 20:21:16,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47905 conditions, 31322 events. 10763/31322 cut-off events. For 2770/2770 co-relation queries the response was YES. Maximal size of possible extension queue 1072. Compared 369205 event pairs, 3318 based on Foata normal form. 5288/30823 useless extension candidates. Maximal degree in co-relation 47872. Up to 8400 conditions per place. [2024-11-27 20:21:16,731 INFO L140 encePairwiseOnDemand]: 220/244 looper letters, 38 selfloop transitions, 11 changer transitions 0/195 dead transitions. [2024-11-27 20:21:16,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 195 transitions, 524 flow [2024-11-27 20:21:16,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:21:16,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:21:16,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 626 transitions. [2024-11-27 20:21:16,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.855191256830601 [2024-11-27 20:21:16,735 INFO L175 Difference]: Start difference. First operand has 197 places, 195 transitions, 411 flow. Second operand 3 states and 626 transitions. [2024-11-27 20:21:16,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 195 transitions, 524 flow [2024-11-27 20:21:16,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 195 transitions, 519 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-27 20:21:16,747 INFO L231 Difference]: Finished difference. Result has 182 places, 184 transitions, 460 flow [2024-11-27 20:21:16,747 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=182, PETRI_TRANSITIONS=184} [2024-11-27 20:21:16,749 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -15 predicate places. [2024-11-27 20:21:16,752 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 184 transitions, 460 flow [2024-11-27 20:21:16,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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) [2024-11-27 20:21:16,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:16,753 INFO L206 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] [2024-11-27 20:21:16,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:21:16,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-27 20:21:16,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:16,755 INFO L85 PathProgramCache]: Analyzing trace with hash 12142299, now seen corresponding path program 1 times [2024-11-27 20:21:16,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:16,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851728065] [2024-11-27 20:21:16,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:16,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:16,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:16,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:16,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851728065] [2024-11-27 20:21:16,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851728065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:16,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:16,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:16,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169572415] [2024-11-27 20:21:16,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:16,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:21:16,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:16,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:21:16,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:21:16,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 244 [2024-11-27 20:21:16,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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) [2024-11-27 20:21:16,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:16,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 244 [2024-11-27 20:21:16,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:31,544 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][85], [235#true, 26#L694-2true, 101#L695-5true, 140#L707-3true, 233#true, Black: 247#(= |#race~a~0| 0), 47#L717-3true, 71#L694-2true, 245#true, 239#true, 252#(= |#race~b~0| 0), 237#true]) [2024-11-27 20:21:31,544 INFO L294 olderBase$Statistics]: this new event has 105 ancestors and is cut-off event [2024-11-27 20:21:31,544 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-27 20:21:31,544 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-27 20:21:31,544 INFO L297 olderBase$Statistics]: existing Event has 105 ancestors and is cut-off event [2024-11-27 20:21:31,810 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][85], [235#true, 101#L695-5true, 26#L694-2true, 233#true, Black: 247#(= |#race~a~0| 0), 137#L707-4true, 47#L717-3true, 245#true, 71#L694-2true, 239#true, 252#(= |#race~b~0| 0), 237#true]) [2024-11-27 20:21:31,810 INFO L294 olderBase$Statistics]: this new event has 106 ancestors and is cut-off event [2024-11-27 20:21:31,810 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-11-27 20:21:31,810 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-27 20:21:31,810 INFO L297 olderBase$Statistics]: existing Event has 74 ancestors and is cut-off event [2024-11-27 20:21:32,113 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([778] L695-->L695-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][140], [183#L695-1true, 235#true, 26#L694-2true, 247#(= |#race~a~0| 0), 49#L695-1true, 233#true, 47#L717-3true, Black: 245#true, 239#true, 252#(= |#race~b~0| 0), 237#true, 150#L706-2true]) [2024-11-27 20:21:32,113 INFO L294 olderBase$Statistics]: this new event has 112 ancestors and is cut-off event [2024-11-27 20:21:32,113 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2024-11-27 20:21:32,113 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2024-11-27 20:21:32,113 INFO L297 olderBase$Statistics]: existing Event has 89 ancestors and is cut-off event [2024-11-27 20:21:32,837 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][85], [120#L694-1true, 235#true, 101#L695-5true, 233#true, Black: 247#(= |#race~a~0| 0), 47#L717-3true, 71#L694-2true, 245#true, 239#true, 252#(= |#race~b~0| 0), 237#true, 150#L706-2true]) [2024-11-27 20:21:32,837 INFO L294 olderBase$Statistics]: this new event has 109 ancestors and is cut-off event [2024-11-27 20:21:32,837 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-11-27 20:21:32,837 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-27 20:21:32,837 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-27 20:21:32,840 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([778] L695-->L695-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][140], [235#true, 26#L694-2true, 247#(= |#race~a~0| 0), 49#L695-1true, 233#true, 47#L717-3true, Black: 245#true, 123#L695-2true, 239#true, 252#(= |#race~b~0| 0), 237#true, 150#L706-2true]) [2024-11-27 20:21:32,840 INFO L294 olderBase$Statistics]: this new event has 113 ancestors and is cut-off event [2024-11-27 20:21:32,840 INFO L297 olderBase$Statistics]: existing Event has 72 ancestors and is cut-off event [2024-11-27 20:21:32,840 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-11-27 20:21:32,840 INFO L297 olderBase$Statistics]: existing Event has 90 ancestors and is cut-off event [2024-11-27 20:21:32,866 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][85], [235#true, 26#L694-2true, 101#L695-5true, 29#L708-2true, 233#true, Black: 247#(= |#race~a~0| 0), 47#L717-3true, 71#L694-2true, 245#true, 239#true, 252#(= |#race~b~0| 0), 237#true]) [2024-11-27 20:21:32,866 INFO L294 olderBase$Statistics]: this new event has 108 ancestors and is cut-off event [2024-11-27 20:21:32,867 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-11-27 20:21:32,867 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2024-11-27 20:21:32,867 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-27 20:21:33,151 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][85], [235#true, 26#L694-2true, 101#L695-5true, 233#true, Black: 247#(= |#race~a~0| 0), 47#L717-3true, 71#L694-2true, 245#true, 239#true, 252#(= |#race~b~0| 0), 237#true, 150#L706-2true]) [2024-11-27 20:21:33,151 INFO L294 olderBase$Statistics]: this new event has 110 ancestors and is cut-off event [2024-11-27 20:21:33,151 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-11-27 20:21:33,151 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-27 20:21:33,151 INFO L297 olderBase$Statistics]: existing Event has 78 ancestors and is cut-off event [2024-11-27 20:21:33,483 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][85], [106#L694-1true, 235#true, 26#L694-2true, 101#L695-5true, 233#true, Black: 247#(= |#race~a~0| 0), 47#L717-3true, 245#true, 239#true, 252#(= |#race~b~0| 0), 237#true, 150#L706-2true]) [2024-11-27 20:21:33,483 INFO L294 olderBase$Statistics]: this new event has 109 ancestors and is cut-off event [2024-11-27 20:21:33,483 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-27 20:21:33,483 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-11-27 20:21:33,483 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-27 20:21:33,483 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([695] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][85], [235#true, 26#L694-2true, 101#L695-5true, 233#true, Black: 247#(= |#race~a~0| 0), 47#L717-3true, 71#L694-2true, 245#true, 239#true, 252#(= |#race~b~0| 0), 237#true, 150#L706-2true]) [2024-11-27 20:21:33,484 INFO L294 olderBase$Statistics]: this new event has 110 ancestors and is cut-off event [2024-11-27 20:21:33,484 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-11-27 20:21:33,484 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2024-11-27 20:21:33,484 INFO L297 olderBase$Statistics]: existing Event has 78 ancestors and is cut-off event [2024-11-27 20:21:33,484 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-27 20:21:35,315 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([778] L695-->L695-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][140], [235#true, 101#L695-5true, 247#(= |#race~a~0| 0), 49#L695-1true, 233#true, 47#L717-3true, Black: 245#true, 128#L695-2true, 239#true, 252#(= |#race~b~0| 0), 237#true, 150#L706-2true]) [2024-11-27 20:21:35,315 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2024-11-27 20:21:35,316 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-27 20:21:35,316 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-11-27 20:21:35,316 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-27 20:21:38,003 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([840] L707-2-->L707-3: Formula: (= |v_#race~b~0_7| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_7|} AuxVars[] AssignedVars[#race~b~0][34], [51#L695-5true, 235#true, 140#L707-3true, 247#(= |#race~a~0| 0), 233#true, 88#thr2Err0ASSERT_VIOLATIONDATA_RACEtrue, 47#L717-3true, Black: 245#true, 239#true, 252#(= |#race~b~0| 0), 52#L693-2true, 237#true]) [2024-11-27 20:21:38,004 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is cut-off event [2024-11-27 20:21:38,004 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-27 20:21:38,004 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-27 20:21:38,004 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-27 20:21:38,028 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([725] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][75], [120#L694-1true, 51#L695-5true, 235#true, 247#(= |#race~a~0| 0), 233#true, 88#thr2Err0ASSERT_VIOLATIONDATA_RACEtrue, 250#true, 47#L717-3true, Black: 245#true, 239#true, 126#L707-2true, 237#true]) [2024-11-27 20:21:38,029 INFO L294 olderBase$Statistics]: this new event has 135 ancestors and is cut-off event [2024-11-27 20:21:38,029 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2024-11-27 20:21:38,029 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2024-11-27 20:21:38,029 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-27 20:21:38,029 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([725] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][75], [120#L694-1true, 51#L695-5true, 235#true, 247#(= |#race~a~0| 0), 233#true, 88#thr2Err0ASSERT_VIOLATIONDATA_RACEtrue, 250#true, 47#L717-3true, Black: 245#true, 239#true, 228#L707-1true, 237#true]) [2024-11-27 20:21:38,029 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is cut-off event [2024-11-27 20:21:38,029 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-27 20:21:38,029 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-27 20:21:38,029 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-27 20:21:38,245 INFO L124 PetriNetUnfolderBase]: 52970/160872 cut-off events. [2024-11-27 20:21:38,245 INFO L125 PetriNetUnfolderBase]: For 11564/11735 co-relation queries the response was YES. [2024-11-27 20:21:39,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257585 conditions, 160872 events. 52970/160872 cut-off events. For 11564/11735 co-relation queries the response was YES. Maximal size of possible extension queue 4761. Compared 2461576 event pairs, 15099 based on Foata normal form. 0/133500 useless extension candidates. Maximal degree in co-relation 257551. Up to 35464 conditions per place. [2024-11-27 20:21:40,219 INFO L140 encePairwiseOnDemand]: 229/244 looper letters, 38 selfloop transitions, 11 changer transitions 0/206 dead transitions. [2024-11-27 20:21:40,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 206 transitions, 615 flow [2024-11-27 20:21:40,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:21:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:21:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2024-11-27 20:21:40,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8306010928961749 [2024-11-27 20:21:40,222 INFO L175 Difference]: Start difference. First operand has 182 places, 184 transitions, 460 flow. Second operand 3 states and 608 transitions. [2024-11-27 20:21:40,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 206 transitions, 615 flow [2024-11-27 20:21:40,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 206 transitions, 593 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:21:40,323 INFO L231 Difference]: Finished difference. Result has 184 places, 195 transitions, 534 flow [2024-11-27 20:21:40,323 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=184, PETRI_TRANSITIONS=195} [2024-11-27 20:21:40,324 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -13 predicate places. [2024-11-27 20:21:40,324 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 195 transitions, 534 flow [2024-11-27 20:21:40,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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) [2024-11-27 20:21:40,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:40,325 INFO L206 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] [2024-11-27 20:21:40,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:21:40,326 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-27 20:21:40,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:40,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2037690242, now seen corresponding path program 1 times [2024-11-27 20:21:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618880717] [2024-11-27 20:21:40,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:40,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:40,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:40,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618880717] [2024-11-27 20:21:40,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618880717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:40,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:40,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:40,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743962609] [2024-11-27 20:21:40,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:40,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:21:40,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:40,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:21:40,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:21:40,429 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 244 [2024-11-27 20:21:40,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 195 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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) [2024-11-27 20:21:40,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:40,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 244 [2024-11-27 20:21:40,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:47,017 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([734] L695-->L695-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][112], [235#true, 233#true, 47#L717-3true, 239#true, 252#(= |#race~b~0| 0), 237#true, 158#L695-1true, 140#L707-3true, 101#L695-5true, 255#true, 160#L695-2true, Black: 245#true, Black: 250#true]) [2024-11-27 20:21:47,017 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-11-27 20:21:47,017 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-27 20:21:47,017 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-27 20:21:47,017 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-27 20:21:47,411 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([734] L695-->L695-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][112], [235#true, 233#true, 137#L707-4true, 47#L717-3true, 239#true, 252#(= |#race~b~0| 0), 237#true, 158#L695-1true, 101#L695-5true, 255#true, 160#L695-2true, Black: 245#true, Black: 250#true]) [2024-11-27 20:21:47,412 INFO L294 olderBase$Statistics]: this new event has 87 ancestors and is cut-off event [2024-11-27 20:21:47,412 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-11-27 20:21:47,412 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-11-27 20:21:47,412 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-11-27 20:21:53,033 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([681] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][48], [235#true, 236#true, 29#L708-2true, 255#true, 233#true, 138#L695-5true, Black: 245#true, 47#L717-3true, 48#L694-1true, 239#true, 252#(= |#race~b~0| 0), Black: 250#true]) [2024-11-27 20:21:53,033 INFO L294 olderBase$Statistics]: this new event has 96 ancestors and is cut-off event [2024-11-27 20:21:53,033 INFO L297 olderBase$Statistics]: existing Event has 96 ancestors and is cut-off event [2024-11-27 20:21:53,033 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-11-27 20:21:53,033 INFO L297 olderBase$Statistics]: existing Event has 96 ancestors and is cut-off event [2024-11-27 20:21:55,880 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([774] L694-4-->L694-5: Formula: (= |v_#race~temp~0_1| |v_thr2Thread3of3ForFork0_#t~nondet2_3|) InVars {thr2Thread3of3ForFork0_#t~nondet2=|v_thr2Thread3of3ForFork0_#t~nondet2_3|} OutVars{#race~temp~0=|v_#race~temp~0_1|, thr2Thread3of3ForFork0_#t~nondet2=|v_thr2Thread3of3ForFork0_#t~nondet2_3|} AuxVars[] AssignedVars[#race~temp~0][104], [235#true, 29#L708-2true, 233#true, 47#L717-3true, 239#true, 252#(= |#race~b~0| 0), 174#L697-1true, 237#true, 255#true, 138#L695-5true, Black: 245#true, Black: 250#true, 121#L694-5true]) [2024-11-27 20:21:55,880 INFO L294 olderBase$Statistics]: this new event has 99 ancestors and is cut-off event [2024-11-27 20:21:55,880 INFO L297 olderBase$Statistics]: existing Event has 99 ancestors and is cut-off event [2024-11-27 20:21:55,880 INFO L297 olderBase$Statistics]: existing Event has 99 ancestors and is cut-off event [2024-11-27 20:21:55,880 INFO L297 olderBase$Statistics]: existing Event has 99 ancestors and is cut-off event [2024-11-27 20:21:56,860 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([846] L707-8-->L708-2: Formula: (and (= |v_thr1Thread1of3ForFork1_#t~ret8#1_1| 0) (= |v_#pthreadsMutex_33| (store |v_#pthreadsMutex_34| |v_~#mutex~0.base_23| (store (select |v_#pthreadsMutex_34| |v_~#mutex~0.base_23|) |v_~#mutex~0.offset_23| 0)))) InVars {~#mutex~0.base=|v_~#mutex~0.base_23|, ~#mutex~0.offset=|v_~#mutex~0.offset_23|, #pthreadsMutex=|v_#pthreadsMutex_34|} OutVars{~#mutex~0.offset=|v_~#mutex~0.offset_23|, #pthreadsMutex=|v_#pthreadsMutex_33|, thr1Thread1of3ForFork1_#t~ret8#1=|v_thr1Thread1of3ForFork1_#t~ret8#1_1|, ~#mutex~0.base=|v_~#mutex~0.base_23|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread1of3ForFork1_#t~ret8#1][44], [235#true, 29#L708-2true, 233#true, 47#L717-3true, 239#true, 252#(= |#race~b~0| 0), 174#L697-1true, 237#true, 65#L694-5true, 255#true, Black: 245#true, Black: 250#true, 121#L694-5true]) [2024-11-27 20:21:56,860 INFO L294 olderBase$Statistics]: this new event has 101 ancestors and is cut-off event [2024-11-27 20:21:56,860 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-27 20:21:56,860 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-27 20:21:56,860 INFO L297 olderBase$Statistics]: existing Event has 101 ancestors and is cut-off event [2024-11-27 20:21:56,900 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([846] L707-8-->L708-2: Formula: (and (= |v_thr1Thread1of3ForFork1_#t~ret8#1_1| 0) (= |v_#pthreadsMutex_33| (store |v_#pthreadsMutex_34| |v_~#mutex~0.base_23| (store (select |v_#pthreadsMutex_34| |v_~#mutex~0.base_23|) |v_~#mutex~0.offset_23| 0)))) InVars {~#mutex~0.base=|v_~#mutex~0.base_23|, ~#mutex~0.offset=|v_~#mutex~0.offset_23|, #pthreadsMutex=|v_#pthreadsMutex_34|} OutVars{~#mutex~0.offset=|v_~#mutex~0.offset_23|, #pthreadsMutex=|v_#pthreadsMutex_33|, thr1Thread1of3ForFork1_#t~ret8#1=|v_thr1Thread1of3ForFork1_#t~ret8#1_1|, ~#mutex~0.base=|v_~#mutex~0.base_23|} AuxVars[] AssignedVars[#pthreadsMutex, thr1Thread1of3ForFork1_#t~ret8#1][44], [235#true, 29#L708-2true, 233#true, 47#L717-3true, 239#true, 252#(= |#race~b~0| 0), 52#L693-2true, 237#true, 255#true, Black: 245#true, 206#L693-2true, 48#L694-1true, Black: 250#true]) [2024-11-27 20:21:56,900 INFO L294 olderBase$Statistics]: this new event has 100 ancestors and is cut-off event [2024-11-27 20:21:56,900 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-11-27 20:21:56,900 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2024-11-27 20:21:56,900 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-11-27 20:21:58,142 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([725] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][63], [120#L694-1true, 235#true, 29#L708-2true, 233#true, 47#L717-3true, 239#true, 252#(= |#race~b~0| 0), 237#true, 40#$Ultimate##0true, 51#L695-5true, 255#true, Black: 245#true, Black: 250#true]) [2024-11-27 20:21:58,142 INFO L294 olderBase$Statistics]: this new event has 102 ancestors and is cut-off event [2024-11-27 20:21:58,142 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-27 20:21:58,142 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2024-11-27 20:21:58,143 INFO L297 olderBase$Statistics]: existing Event has 70 ancestors and is cut-off event [2024-11-27 20:22:00,724 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([725] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][63], [120#L694-1true, 235#true, 29#L708-2true, 233#true, 47#L717-3true, 239#true, 252#(= |#race~b~0| 0), 203#L694-4true, 237#true, 51#L695-5true, 255#true, Black: 245#true, Black: 250#true]) [2024-11-27 20:22:00,724 INFO L294 olderBase$Statistics]: this new event has 109 ancestors and is cut-off event [2024-11-27 20:22:00,724 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-11-27 20:22:00,724 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-11-27 20:22:00,724 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event