./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.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_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/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_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/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_0c800260-1a09-409d-bab4-db0f9a29a9e8/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 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:49:47,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:49:47,752 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 19:49:47,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:49:47,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:49:47,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:49:47,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:49:47,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:49:47,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:49:47,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:49:47,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:49:47,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:49:47,803 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:49:47,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:49:47,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:49:47,803 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:49:47,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:49:47,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:49:47,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:49:47,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:49:47,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:49:47,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:49:47,805 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 19:49:47,805 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:49:47,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:49:47,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:49:47,805 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:49:47,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:49:47,806 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:49:47,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:49:47,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:49:47,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:47,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:49:47,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:49:47,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:49:47,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:47,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:49:47,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:49:47,808 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:49:47,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:49:47,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:49:47,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:49:47,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:49:47,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:49:47,809 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:49:47,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:49:47,809 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_0c800260-1a09-409d-bab4-db0f9a29a9e8/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 -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2024-11-27 19:49:48,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:49:48,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:49:48,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:49:48,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:49:48,206 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:49:48,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2024-11-27 19:49:51,517 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/data/870780f64/ef0936b1c2f7495c9430bb546651f235/FLAGf86bdd2eb [2024-11-27 19:49:52,055 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:49:52,060 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2024-11-27 19:49:52,087 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/data/870780f64/ef0936b1c2f7495c9430bb546651f235/FLAGf86bdd2eb [2024-11-27 19:49:52,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/data/870780f64/ef0936b1c2f7495c9430bb546651f235 [2024-11-27 19:49:52,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:49:52,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:49:52,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:49:52,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:49:52,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:49:52,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:49:52" (1/1) ... [2024-11-27 19:49:52,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77717ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:52, skipping insertion in model container [2024-11-27 19:49:52,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:49:52" (1/1) ... [2024-11-27 19:49:52,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:49:52,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:49:52,920 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:49:53,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:49:53,082 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:49:53,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53 WrapperNode [2024-11-27 19:49:53,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:49:53,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:49:53,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:49:53,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:49:53,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,222 INFO L138 Inliner]: procedures = 174, calls = 86, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 865 [2024-11-27 19:49:53,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:49:53,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:49:53,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:49:53,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:49:53,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,321 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:49:53,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:49:53,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:49:53,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:49:53,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (1/1) ... [2024-11-27 19:49:53,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:49:53,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:49:53,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:49:53,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:49:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 19:49:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 19:49:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 19:49:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-27 19:49:53,454 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-27 19:49:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:49:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-27 19:49:53,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 19:49:53,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-27 19:49:53,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 19:49:53,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 19:49:53,455 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 19:49:53,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:49:53,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:49:53,457 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 19:49:53,678 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:49:53,681 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:49:55,769 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 19:49:55,769 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:49:55,881 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:49:55,881 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-27 19:49:55,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:55 BoogieIcfgContainer [2024-11-27 19:49:55,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:49:55,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:49:55,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:49:55,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:49:55,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:49:52" (1/3) ... [2024-11-27 19:49:55,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5d39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:49:55, skipping insertion in model container [2024-11-27 19:49:55,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:49:53" (2/3) ... [2024-11-27 19:49:55,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5d39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:49:55, skipping insertion in model container [2024-11-27 19:49:55,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:49:55" (3/3) ... [2024-11-27 19:49:55,937 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2024-11-27 19:49:55,957 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:49:55,959 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_2t.i that has 2 procedures, 941 locations, 1 initial locations, 16 loop locations, and 77 error locations. [2024-11-27 19:49:55,959 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 19:49:56,255 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-27 19:49:56,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 944 places, 1030 transitions, 2067 flow [2024-11-27 19:49:57,738 INFO L124 PetriNetUnfolderBase]: 135/1528 cut-off events. [2024-11-27 19:49:57,745 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 19:49:57,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1528 events. 135/1528 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5599 event pairs, 0 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 924. Up to 4 conditions per place. [2024-11-27 19:49:57,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 944 places, 1030 transitions, 2067 flow [2024-11-27 19:49:57,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 944 places, 1030 transitions, 2067 flow [2024-11-27 19:49:57,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:49:57,943 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;@4ec785a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:49:57,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2024-11-27 19:49:57,962 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 19:49:57,963 INFO L124 PetriNetUnfolderBase]: 1/50 cut-off events. [2024-11-27 19:49:57,963 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 19:49:57,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:49:57,964 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, 1] [2024-11-27 19:49:57,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-27 19:49:57,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:49:57,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1973660072, now seen corresponding path program 1 times [2024-11-27 19:49:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:49:57,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046663553] [2024-11-27 19:49:57,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:49:57,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:49:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:49:59,695 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 19:49:59,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:49:59,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046663553] [2024-11-27 19:49:59,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046663553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:49:59,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:49:59,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:49:59,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115673272] [2024-11-27 19:49:59,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:49:59,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:49:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:49:59,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:49:59,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:02,438 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-27 19:50:02,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 1030 transitions, 2067 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 19:50:02,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:02,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-27 19:50:02,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:19,025 INFO L124 PetriNetUnfolderBase]: 12703/59142 cut-off events. [2024-11-27 19:50:19,026 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-27 19:50:19,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82551 conditions, 59142 events. 12703/59142 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 688993 event pairs, 11413 based on Foata normal form. 7034/59068 useless extension candidates. Maximal degree in co-relation 81862. Up to 23399 conditions per place. [2024-11-27 19:50:19,371 INFO L140 encePairwiseOnDemand]: 954/1030 looper letters, 231 selfloop transitions, 5 changer transitions 3/932 dead transitions. [2024-11-27 19:50:19,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 932 transitions, 2343 flow [2024-11-27 19:50:19,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:50:19,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 19:50:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4645 transitions. [2024-11-27 19:50:19,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7516181229773463 [2024-11-27 19:50:19,429 INFO L175 Difference]: Start difference. First operand has 944 places, 1030 transitions, 2067 flow. Second operand 6 states and 4645 transitions. [2024-11-27 19:50:19,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 932 transitions, 2343 flow [2024-11-27 19:50:19,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 921 places, 932 transitions, 2343 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 19:50:19,482 INFO L231 Difference]: Finished difference. Result has 921 places, 929 transitions, 1875 flow [2024-11-27 19:50:19,488 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=916, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1875, PETRI_PLACES=921, PETRI_TRANSITIONS=929} [2024-11-27 19:50:19,495 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -23 predicate places. [2024-11-27 19:50:19,499 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 929 transitions, 1875 flow [2024-11-27 19:50:19,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 19:50:19,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:19,503 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:19,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:50:19,503 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-27 19:50:19,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:19,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1396673201, now seen corresponding path program 1 times [2024-11-27 19:50:19,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:19,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811929836] [2024-11-27 19:50:19,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:19,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:19,633 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 19:50:19,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:19,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811929836] [2024-11-27 19:50:19,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811929836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:19,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:19,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:19,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199207018] [2024-11-27 19:50:19,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:19,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:19,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:19,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:19,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:19,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 932 out of 1030 [2024-11-27 19:50:19,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 929 transitions, 1875 flow. Second operand has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 19:50:19,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:19,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 932 of 1030 [2024-11-27 19:50:19,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:21,766 INFO L124 PetriNetUnfolderBase]: 247/4793 cut-off events. [2024-11-27 19:50:21,766 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-27 19:50:21,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 4793 events. 247/4793 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36225 event pairs, 110 based on Foata normal form. 1/4134 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2024-11-27 19:50:21,810 INFO L140 encePairwiseOnDemand]: 1027/1030 looper letters, 27 selfloop transitions, 2 changer transitions 0/930 dead transitions. [2024-11-27 19:50:21,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 930 transitions, 1935 flow [2024-11-27 19:50:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 19:50:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2826 transitions. [2024-11-27 19:50:21,818 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9145631067961165 [2024-11-27 19:50:21,819 INFO L175 Difference]: Start difference. First operand has 921 places, 929 transitions, 1875 flow. Second operand 3 states and 2826 transitions. [2024-11-27 19:50:21,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 920 places, 930 transitions, 1935 flow [2024-11-27 19:50:21,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 915 places, 930 transitions, 1925 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 19:50:21,840 INFO L231 Difference]: Finished difference. Result has 916 places, 930 transitions, 1877 flow [2024-11-27 19:50:21,841 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1865, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1877, PETRI_PLACES=916, PETRI_TRANSITIONS=930} [2024-11-27 19:50:21,842 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -28 predicate places. [2024-11-27 19:50:21,843 INFO L471 AbstractCegarLoop]: Abstraction has has 916 places, 930 transitions, 1877 flow [2024-11-27 19:50:21,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 933.3333333333334) internal successors, (2800), 3 states have internal predecessors, (2800), 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 19:50:21,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:21,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:21,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:50:21,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-27 19:50:21,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:21,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1505328591, now seen corresponding path program 1 times [2024-11-27 19:50:21,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:21,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312604216] [2024-11-27 19:50:21,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:21,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:22,569 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 19:50:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:22,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312604216] [2024-11-27 19:50:22,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312604216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:22,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:22,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:50:22,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902583996] [2024-11-27 19:50:22,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:22,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:50:22,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:22,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:50:22,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:25,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-27 19:50:25,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 916 places, 930 transitions, 1877 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 19:50:25,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:25,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-27 19:50:25,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:40,101 INFO L124 PetriNetUnfolderBase]: 12703/59166 cut-off events. [2024-11-27 19:50:40,101 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-27 19:50:40,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82590 conditions, 59166 events. 12703/59166 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 688915 event pairs, 11413 based on Foata normal form. 0/52060 useless extension candidates. Maximal degree in co-relation 82511. Up to 23402 conditions per place. [2024-11-27 19:50:40,317 INFO L140 encePairwiseOnDemand]: 1024/1030 looper letters, 232 selfloop transitions, 5 changer transitions 0/929 dead transitions. [2024-11-27 19:50:40,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 929 transitions, 2349 flow [2024-11-27 19:50:40,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:50:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 19:50:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2024-11-27 19:50:40,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2024-11-27 19:50:40,335 INFO L175 Difference]: Start difference. First operand has 916 places, 930 transitions, 1877 flow. Second operand 6 states and 4575 transitions. [2024-11-27 19:50:40,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 920 places, 929 transitions, 2349 flow [2024-11-27 19:50:40,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 919 places, 929 transitions, 2347 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 19:50:40,362 INFO L231 Difference]: Finished difference. Result has 919 places, 929 transitions, 1883 flow [2024-11-27 19:50:40,364 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1873, PETRI_DIFFERENCE_MINUEND_PLACES=914, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1883, PETRI_PLACES=919, PETRI_TRANSITIONS=929} [2024-11-27 19:50:40,365 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -25 predicate places. [2024-11-27 19:50:40,365 INFO L471 AbstractCegarLoop]: Abstraction has has 919 places, 929 transitions, 1883 flow [2024-11-27 19:50:40,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 19:50:40,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:40,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:40,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:50:40,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-27 19:50:40,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:40,370 INFO L85 PathProgramCache]: Analyzing trace with hash 998181884, now seen corresponding path program 1 times [2024-11-27 19:50:40,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:40,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285593226] [2024-11-27 19:50:40,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:40,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:41,177 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 19:50:41,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:41,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285593226] [2024-11-27 19:50:41,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285593226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:41,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:41,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:50:41,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145058360] [2024-11-27 19:50:41,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:41,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:50:41,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:41,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:50:41,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:43,199 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-27 19:50:43,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 919 places, 929 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 19:50:43,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:43,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-27 19:50:43,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:50:57,041 INFO L124 PetriNetUnfolderBase]: 12703/59164 cut-off events. [2024-11-27 19:50:57,041 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2024-11-27 19:50:57,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82597 conditions, 59164 events. 12703/59164 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 689120 event pairs, 11413 based on Foata normal form. 0/52060 useless extension candidates. Maximal degree in co-relation 82504. Up to 23402 conditions per place. [2024-11-27 19:50:57,240 INFO L140 encePairwiseOnDemand]: 1024/1030 looper letters, 232 selfloop transitions, 5 changer transitions 0/928 dead transitions. [2024-11-27 19:50:57,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 923 places, 928 transitions, 2355 flow [2024-11-27 19:50:57,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:50:57,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 19:50:57,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4575 transitions. [2024-11-27 19:50:57,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2024-11-27 19:50:57,256 INFO L175 Difference]: Start difference. First operand has 919 places, 929 transitions, 1883 flow. Second operand 6 states and 4575 transitions. [2024-11-27 19:50:57,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 923 places, 928 transitions, 2355 flow [2024-11-27 19:50:57,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 918 places, 928 transitions, 2345 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 19:50:57,280 INFO L231 Difference]: Finished difference. Result has 918 places, 928 transitions, 1881 flow [2024-11-27 19:50:57,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1881, PETRI_PLACES=918, PETRI_TRANSITIONS=928} [2024-11-27 19:50:57,283 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -26 predicate places. [2024-11-27 19:50:57,283 INFO L471 AbstractCegarLoop]: Abstraction has has 918 places, 928 transitions, 1881 flow [2024-11-27 19:50:57,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 724.5) internal successors, (4347), 6 states have internal predecessors, (4347), 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 19:50:57,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:50:57,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:50:57,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:50:57,287 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-27 19:50:57,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1936704675, now seen corresponding path program 1 times [2024-11-27 19:50:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91895870] [2024-11-27 19:50:57,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:57,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:57,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:57,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91895870] [2024-11-27 19:50:57,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91895870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:57,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927527025] [2024-11-27 19:50:57,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:57,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:57,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:57,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:57,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:50:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:57,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:50:57,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:57,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:57,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927527025] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:57,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:57,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-27 19:50:57,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548006518] [2024-11-27 19:50:57,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:57,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:50:57,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:57,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:50:57,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:58,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 931 out of 1030 [2024-11-27 19:50:58,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 928 transitions, 1881 flow. Second operand has 5 states, 5 states have (on average 932.8) internal successors, (4664), 5 states have internal predecessors, (4664), 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 19:50:58,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:50:58,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 931 of 1030 [2024-11-27 19:50:58,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 19:51:00,162 INFO L124 PetriNetUnfolderBase]: 247/4791 cut-off events. [2024-11-27 19:51:00,162 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-27 19:51:00,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 4791 events. 247/4791 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 36352 event pairs, 110 based on Foata normal form. 1/4136 useless extension candidates. Maximal degree in co-relation 5015. Up to 305 conditions per place. [2024-11-27 19:51:00,192 INFO L140 encePairwiseOnDemand]: 1026/1030 looper letters, 28 selfloop transitions, 4 changer transitions 0/930 dead transitions. [2024-11-27 19:51:00,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 921 places, 930 transitions, 1949 flow [2024-11-27 19:51:00,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:00,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 19:51:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3757 transitions. [2024-11-27 19:51:00,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9118932038834952 [2024-11-27 19:51:00,204 INFO L175 Difference]: Start difference. First operand has 918 places, 928 transitions, 1881 flow. Second operand 4 states and 3757 transitions. [2024-11-27 19:51:00,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 921 places, 930 transitions, 1949 flow [2024-11-27 19:51:00,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 916 places, 930 transitions, 1939 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-27 19:51:00,221 INFO L231 Difference]: Finished difference. Result has 918 places, 929 transitions, 1891 flow [2024-11-27 19:51:00,223 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1891, PETRI_PLACES=918, PETRI_TRANSITIONS=929} [2024-11-27 19:51:00,226 INFO L279 CegarLoopForPetriNet]: 944 programPoint places, -26 predicate places. [2024-11-27 19:51:00,226 INFO L471 AbstractCegarLoop]: Abstraction has has 918 places, 929 transitions, 1891 flow [2024-11-27 19:51:00,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 932.8) internal successors, (4664), 5 states have internal predecessors, (4664), 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 19:51:00,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 19:51:00,234 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:00,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:51:00,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c800260-1a09-409d-bab4-db0f9a29a9e8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:00,435 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-11-27 19:51:00,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:00,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1554412041, now seen corresponding path program 2 times [2024-11-27 19:51:00,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:00,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086754211] [2024-11-27 19:51:00,436 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:00,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:00,500 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 19:51:00,500 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:00,850 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 19:51:00,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:00,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086754211] [2024-11-27 19:51:00,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086754211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:00,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:00,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:51:00,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980654703] [2024-11-27 19:51:00,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:00,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:51:00,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:00,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:51:00,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:51:02,889 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 723 out of 1030 [2024-11-27 19:51:02,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 929 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 726.3333333333334) internal successors, (4358), 6 states have internal predecessors, (4358), 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 19:51:02,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 19:51:02,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 723 of 1030 [2024-11-27 19:51:02,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand