./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.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_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/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_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/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_8848f7f5-a0c8-48f1-a80a-53227422bf23/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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:54:04,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:54:04,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:54:04,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:54:04,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:54:04,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:54:04,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:54:04,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:54:04,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:54:04,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:54:04,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:54:04,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:54:04,671 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:54:04,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:54:04,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:54:04,673 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:54:04,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:54:04,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:54:04,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:54:04,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:54:04,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:54:04,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:54:04,675 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:54:04,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:54:04,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:54:04,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:54:04,675 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:54:04,675 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:54:04,676 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:54:04,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:54:04,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:54:04,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:54:04,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:54:04,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:54:04,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:54:04,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:54:04,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:54:04,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:54:04,678 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_8848f7f5-a0c8-48f1-a80a-53227422bf23/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 -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2024-11-28 03:54:05,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:54:05,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:54:05,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:54:05,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:54:05,101 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:54:05,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2024-11-28 03:54:08,836 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/data/4262d57bb/0f321f46444e43d29bd24ca2e324cf15/FLAGc178ef1b7 [2024-11-28 03:54:09,278 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:54:09,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2024-11-28 03:54:09,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/data/4262d57bb/0f321f46444e43d29bd24ca2e324cf15/FLAGc178ef1b7 [2024-11-28 03:54:09,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/data/4262d57bb/0f321f46444e43d29bd24ca2e324cf15 [2024-11-28 03:54:09,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:54:09,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:54:09,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:54:09,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:54:09,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:54:09,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:54:09" (1/1) ... [2024-11-28 03:54:09,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bac1e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:09, skipping insertion in model container [2024-11-28 03:54:09,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:54:09" (1/1) ... [2024-11-28 03:54:09,374 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:54:09,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:54:09,939 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:54:10,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:54:10,093 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:54:10,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10 WrapperNode [2024-11-28 03:54:10,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:54:10,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:54:10,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:54:10,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:54:10,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,210 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 870 [2024-11-28 03:54:10,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:54:10,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:54:10,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:54:10,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:54:10,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:54:10,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:54:10,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:54:10,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:54:10,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (1/1) ... [2024-11-28 03:54:10,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:54:10,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:54:10,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:54:10,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:54:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:54:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:54:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:54:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-28 03:54:10,495 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-28 03:54:10,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 03:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 03:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:54:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:54:10,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:54:10,500 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:54:10,790 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:54:10,792 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:54:13,041 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:54:13,042 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:54:13,118 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:54:13,118 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-28 03:54:13,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:54:13 BoogieIcfgContainer [2024-11-28 03:54:13,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:54:13,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:54:13,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:54:13,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:54:13,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:54:09" (1/3) ... [2024-11-28 03:54:13,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79940fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:54:13, skipping insertion in model container [2024-11-28 03:54:13,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:54:10" (2/3) ... [2024-11-28 03:54:13,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79940fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:54:13, skipping insertion in model container [2024-11-28 03:54:13,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:54:13" (3/3) ... [2024-11-28 03:54:13,136 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2024-11-28 03:54:13,158 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:54:13,161 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_3t.i that has 2 procedures, 946 locations, 1 initial locations, 16 loop locations, and 77 error locations. [2024-11-28 03:54:13,161 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:54:13,541 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 03:54:13,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 949 places, 1035 transitions, 2077 flow [2024-11-28 03:54:14,964 INFO L124 PetriNetUnfolderBase]: 135/1533 cut-off events. [2024-11-28 03:54:14,970 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:54:15,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1533 events. 135/1533 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5603 event pairs, 0 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 924. Up to 4 conditions per place. [2024-11-28 03:54:15,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 949 places, 1035 transitions, 2077 flow [2024-11-28 03:54:15,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 949 places, 1035 transitions, 2077 flow [2024-11-28 03:54:15,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:54:15,119 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;@4c0c88b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:54:15,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2024-11-28 03:54:15,131 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:54:15,131 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-11-28 03:54:15,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:54:15,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:54:15,132 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] [2024-11-28 03:54:15,132 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)] === [2024-11-28 03:54:15,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash 330611413, now seen corresponding path program 1 times [2024-11-28 03:54:15,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:15,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523256138] [2024-11-28 03:54:15,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:15,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:54:16,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:16,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523256138] [2024-11-28 03:54:16,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523256138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:16,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:16,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:54:16,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545423186] [2024-11-28 03:54:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:16,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:54:16,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:16,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:54:16,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:54:19,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-11-28 03:54:19,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 1035 transitions, 2077 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-11-28 03:54:19,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:54:19,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-11-28 03:54:19,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:54:36,857 INFO L124 PetriNetUnfolderBase]: 12703/59147 cut-off events. [2024-11-28 03:54:36,857 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-28 03:54:36,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82556 conditions, 59147 events. 12703/59147 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 688895 event pairs, 11413 based on Foata normal form. 7034/59073 useless extension candidates. Maximal degree in co-relation 81862. Up to 23399 conditions per place. [2024-11-28 03:54:37,112 INFO L140 encePairwiseOnDemand]: 959/1035 looper letters, 231 selfloop transitions, 5 changer transitions 3/937 dead transitions. [2024-11-28 03:54:37,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 926 places, 937 transitions, 2353 flow [2024-11-28 03:54:37,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:54:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:54:37,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4675 transitions. [2024-11-28 03:54:37,159 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7528180354267311 [2024-11-28 03:54:37,164 INFO L175 Difference]: Start difference. First operand has 949 places, 1035 transitions, 2077 flow. Second operand 6 states and 4675 transitions. [2024-11-28 03:54:37,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 926 places, 937 transitions, 2353 flow [2024-11-28 03:54:37,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 937 transitions, 2353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:54:37,208 INFO L231 Difference]: Finished difference. Result has 926 places, 934 transitions, 1885 flow [2024-11-28 03:54:37,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=921, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1885, PETRI_PLACES=926, PETRI_TRANSITIONS=934} [2024-11-28 03:54:37,221 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -23 predicate places. [2024-11-28 03:54:37,221 INFO L471 AbstractCegarLoop]: Abstraction has has 926 places, 934 transitions, 1885 flow [2024-11-28 03:54:37,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-11-28 03:54:37,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:54:37,225 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] [2024-11-28 03:54:37,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:54:37,226 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)] === [2024-11-28 03:54:37,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:37,229 INFO L85 PathProgramCache]: Analyzing trace with hash -270212579, now seen corresponding path program 1 times [2024-11-28 03:54:37,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:37,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625754465] [2024-11-28 03:54:37,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:37,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:54:37,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:37,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625754465] [2024-11-28 03:54:37,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625754465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:37,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:37,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:54:37,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117129029] [2024-11-28 03:54:37,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:37,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:54:37,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:37,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:54:37,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:54:37,466 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 937 out of 1035 [2024-11-28 03:54:37,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 926 places, 934 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 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) [2024-11-28 03:54:37,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:54:37,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 937 of 1035 [2024-11-28 03:54:37,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:54:39,300 INFO L124 PetriNetUnfolderBase]: 247/4798 cut-off events. [2024-11-28 03:54:39,300 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 03:54:39,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5121 conditions, 4798 events. 247/4798 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 36245 event pairs, 110 based on Foata normal form. 1/4139 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2024-11-28 03:54:39,337 INFO L140 encePairwiseOnDemand]: 1032/1035 looper letters, 27 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2024-11-28 03:54:39,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 935 transitions, 1945 flow [2024-11-28 03:54:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:54:39,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:54:39,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2841 transitions. [2024-11-28 03:54:39,345 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.914975845410628 [2024-11-28 03:54:39,345 INFO L175 Difference]: Start difference. First operand has 926 places, 934 transitions, 1885 flow. Second operand 3 states and 2841 transitions. [2024-11-28 03:54:39,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 935 transitions, 1945 flow [2024-11-28 03:54:39,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 935 transitions, 1935 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:54:39,366 INFO L231 Difference]: Finished difference. Result has 921 places, 935 transitions, 1887 flow [2024-11-28 03:54:39,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=921, PETRI_TRANSITIONS=935} [2024-11-28 03:54:39,369 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -28 predicate places. [2024-11-28 03:54:39,369 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 935 transitions, 1887 flow [2024-11-28 03:54:39,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 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) [2024-11-28 03:54:39,372 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:54:39,372 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] [2024-11-28 03:54:39,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:54:39,372 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)] === [2024-11-28 03:54:39,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2037165276, now seen corresponding path program 1 times [2024-11-28 03:54:39,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:39,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704278706] [2024-11-28 03:54:39,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:39,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:54:40,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:40,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704278706] [2024-11-28 03:54:40,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704278706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:40,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:40,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:54:40,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83838313] [2024-11-28 03:54:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:40,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:54:40,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:40,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:54:40,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:54:42,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-11-28 03:54:42,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 935 transitions, 1887 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-11-28 03:54:42,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:54:42,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-11-28 03:54:42,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:54:57,361 INFO L124 PetriNetUnfolderBase]: 12703/59171 cut-off events. [2024-11-28 03:54:57,361 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2024-11-28 03:54:57,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82595 conditions, 59171 events. 12703/59171 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 688712 event pairs, 11413 based on Foata normal form. 0/52065 useless extension candidates. Maximal degree in co-relation 82511. Up to 23402 conditions per place. [2024-11-28 03:54:57,525 INFO L140 encePairwiseOnDemand]: 1029/1035 looper letters, 232 selfloop transitions, 5 changer transitions 0/934 dead transitions. [2024-11-28 03:54:57,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 934 transitions, 2359 flow [2024-11-28 03:54:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:54:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:54:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2024-11-28 03:54:57,539 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7415458937198067 [2024-11-28 03:54:57,539 INFO L175 Difference]: Start difference. First operand has 921 places, 935 transitions, 1887 flow. Second operand 6 states and 4605 transitions. [2024-11-28 03:54:57,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 934 transitions, 2359 flow [2024-11-28 03:54:57,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 934 transitions, 2357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:54:57,558 INFO L231 Difference]: Finished difference. Result has 924 places, 934 transitions, 1893 flow [2024-11-28 03:54:57,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=919, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1893, PETRI_PLACES=924, PETRI_TRANSITIONS=934} [2024-11-28 03:54:57,561 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -25 predicate places. [2024-11-28 03:54:57,561 INFO L471 AbstractCegarLoop]: Abstraction has has 924 places, 934 transitions, 1893 flow [2024-11-28 03:54:57,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-11-28 03:54:57,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:54:57,565 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] [2024-11-28 03:54:57,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:54:57,565 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)] === [2024-11-28 03:54:57,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:54:57,566 INFO L85 PathProgramCache]: Analyzing trace with hash 121272105, now seen corresponding path program 1 times [2024-11-28 03:54:57,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:54:57,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064461012] [2024-11-28 03:54:57,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:54:57,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:54:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:54:58,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:54:58,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064461012] [2024-11-28 03:54:58,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064461012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:54:58,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:54:58,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:54:58,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647550592] [2024-11-28 03:54:58,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:54:58,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:54:58,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:54:58,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:54:58,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:55:00,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-11-28 03:55:00,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 924 places, 934 transitions, 1893 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-11-28 03:55:00,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:55:00,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-11-28 03:55:00,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:55:14,295 INFO L124 PetriNetUnfolderBase]: 12703/59169 cut-off events. [2024-11-28 03:55:14,296 INFO L125 PetriNetUnfolderBase]: For 9/12 co-relation queries the response was YES. [2024-11-28 03:55:14,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82602 conditions, 59169 events. 12703/59169 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 688631 event pairs, 11413 based on Foata normal form. 0/52065 useless extension candidates. Maximal degree in co-relation 82504. Up to 23402 conditions per place. [2024-11-28 03:55:14,464 INFO L140 encePairwiseOnDemand]: 1029/1035 looper letters, 232 selfloop transitions, 5 changer transitions 0/933 dead transitions. [2024-11-28 03:55:14,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 933 transitions, 2365 flow [2024-11-28 03:55:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:55:14,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:55:14,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2024-11-28 03:55:14,477 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7415458937198067 [2024-11-28 03:55:14,478 INFO L175 Difference]: Start difference. First operand has 924 places, 934 transitions, 1893 flow. Second operand 6 states and 4605 transitions. [2024-11-28 03:55:14,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 933 transitions, 2365 flow [2024-11-28 03:55:14,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 923 places, 933 transitions, 2355 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:55:14,498 INFO L231 Difference]: Finished difference. Result has 923 places, 933 transitions, 1891 flow [2024-11-28 03:55:14,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1891, PETRI_PLACES=923, PETRI_TRANSITIONS=933} [2024-11-28 03:55:14,501 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -26 predicate places. [2024-11-28 03:55:14,501 INFO L471 AbstractCegarLoop]: Abstraction has has 923 places, 933 transitions, 1891 flow [2024-11-28 03:55:14,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-11-28 03:55:14,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:14,504 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, 1, 1, 1, 1, 1] [2024-11-28 03:55:14,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:55:14,505 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)] === [2024-11-28 03:55:14,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:14,506 INFO L85 PathProgramCache]: Analyzing trace with hash 654933772, now seen corresponding path program 1 times [2024-11-28 03:55:14,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:14,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204620174] [2024-11-28 03:55:14,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:14,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:14,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:55:14,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:14,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204620174] [2024-11-28 03:55:14,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204620174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:55:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276478105] [2024-11-28 03:55:14,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:14,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:14,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:14,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:55:14,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:55:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:14,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:55:14,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:55:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:55:14,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:55:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:55:15,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276478105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:55:15,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:55:15,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-28 03:55:15,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529618189] [2024-11-28 03:55:15,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:55:15,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:55:15,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:15,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:55:15,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:55:15,299 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 936 out of 1035 [2024-11-28 03:55:15,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 923 places, 933 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 938.1666666666666) internal successors, (5629), 6 states have internal predecessors, (5629), 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) [2024-11-28 03:55:15,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:55:15,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 936 of 1035 [2024-11-28 03:55:15,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:55:17,175 INFO L124 PetriNetUnfolderBase]: 247/4824 cut-off events. [2024-11-28 03:55:17,175 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 03:55:17,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5163 conditions, 4824 events. 247/4824 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36240 event pairs, 110 based on Foata normal form. 2/4170 useless extension candidates. Maximal degree in co-relation 5015. Up to 305 conditions per place. [2024-11-28 03:55:17,209 INFO L140 encePairwiseOnDemand]: 1031/1035 looper letters, 29 selfloop transitions, 5 changer transitions 0/937 dead transitions. [2024-11-28 03:55:17,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 927 places, 937 transitions, 1969 flow [2024-11-28 03:55:17,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:55:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:55:17,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4716 transitions. [2024-11-28 03:55:17,220 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9113043478260869 [2024-11-28 03:55:17,220 INFO L175 Difference]: Start difference. First operand has 923 places, 933 transitions, 1891 flow. Second operand 5 states and 4716 transitions. [2024-11-28 03:55:17,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 927 places, 937 transitions, 1969 flow [2024-11-28 03:55:17,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 922 places, 937 transitions, 1959 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:55:17,239 INFO L231 Difference]: Finished difference. Result has 925 places, 935 transitions, 1911 flow [2024-11-28 03:55:17,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1911, PETRI_PLACES=925, PETRI_TRANSITIONS=935} [2024-11-28 03:55:17,241 INFO L279 CegarLoopForPetriNet]: 949 programPoint places, -24 predicate places. [2024-11-28 03:55:17,242 INFO L471 AbstractCegarLoop]: Abstraction has has 925 places, 935 transitions, 1911 flow [2024-11-28 03:55:17,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 938.1666666666666) internal successors, (5629), 6 states have internal predecessors, (5629), 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) [2024-11-28 03:55:17,246 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:17,246 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:17,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:55:17,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8848f7f5-a0c8-48f1-a80a-53227422bf23/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:17,447 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)] === [2024-11-28 03:55:17,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:17,448 INFO L85 PathProgramCache]: Analyzing trace with hash 114783082, now seen corresponding path program 2 times [2024-11-28 03:55:17,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:17,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601861018] [2024-11-28 03:55:17,449 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:55:17,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:17,520 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:55:17,520 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:55:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 03:55:17,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:17,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601861018] [2024-11-28 03:55:17,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601861018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:17,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:17,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:55:17,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112841297] [2024-11-28 03:55:17,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:17,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:55:17,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:17,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:55:17,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:55:19,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-11-28 03:55:19,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 925 places, 935 transitions, 1911 flow. Second operand has 6 states, 6 states have (on average 731.3333333333334) internal successors, (4388), 6 states have internal predecessors, (4388), 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) [2024-11-28 03:55:19,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:55:19,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-11-28 03:55:19,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand