./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.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_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/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_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/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_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/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 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:29:07,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:29:07,253 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:29:07,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:29:07,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:29:07,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:29:07,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:29:07,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:29:07,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:29:07,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:29:07,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:29:07,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:29:07,293 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:29:07,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:29:07,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:29:07,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:29:07,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:29:07,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:29:07,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:29:07,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:29:07,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:29:07,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:29:07,295 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:29:07,295 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:29:07,298 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:29:07,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:29:07,299 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:29:07,299 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:29:07,299 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:29:07,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:07,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:07,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:07,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:29:07,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:07,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:07,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:07,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:29:07,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:29:07,300 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:29:07,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:29:07,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:29:07,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:29:07,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:29:07,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:29:07,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:29:07,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:29:07,301 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_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/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 -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2024-11-28 04:29:07,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:29:07,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:29:07,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:29:07,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:29:07,747 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:29:07,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-28 04:29:11,231 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/data/dacc83061/86460878349f4e94aae859bcb2d24eba/FLAG77234809b [2024-11-28 04:29:11,708 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:29:11,713 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-28 04:29:11,743 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/data/dacc83061/86460878349f4e94aae859bcb2d24eba/FLAG77234809b [2024-11-28 04:29:11,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/data/dacc83061/86460878349f4e94aae859bcb2d24eba [2024-11-28 04:29:11,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:29:11,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:29:11,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:11,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:29:11,772 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:29:11,773 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d07d1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11, skipping insertion in model container [2024-11-28 04:29:11,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,836 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:29:12,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:12,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:29:12,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:12,677 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:29:12,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12 WrapperNode [2024-11-28 04:29:12,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:12,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:12,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:29:12,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:29:12,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,774 INFO L138 Inliner]: procedures = 272, calls = 96, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 335 [2024-11-28 04:29:12,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:12,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:29:12,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:29:12,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:29:12,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,814 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:29:12,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:29:12,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:29:12,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:29:12,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (1/1) ... [2024-11-28 04:29:12,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:12,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:12,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:29:12,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:29:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:29:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:29:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:29:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:29:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:29:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:29:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:29:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:29:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:29:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:29:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:29:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:29:12,943 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 04:29:13,170 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:29:13,173 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:29:14,062 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:29:14,062 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:29:14,154 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:29:14,154 INFO L312 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-28 04:29:14,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:14 BoogieIcfgContainer [2024-11-28 04:29:14,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:29:14,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:29:14,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:29:14,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:29:14,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:29:11" (1/3) ... [2024-11-28 04:29:14,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb49d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:14, skipping insertion in model container [2024-11-28 04:29:14,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:12" (2/3) ... [2024-11-28 04:29:14,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb49d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:14, skipping insertion in model container [2024-11-28 04:29:14,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:14" (3/3) ... [2024-11-28 04:29:14,172 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2024-11-28 04:29:14,191 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:29:14,193 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_70-funloop_racefree.i that has 2 procedures, 317 locations, 1 initial locations, 15 loop locations, and 12 error locations. [2024-11-28 04:29:14,193 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:29:14,335 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:29:14,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 320 places, 352 transitions, 711 flow [2024-11-28 04:29:14,627 INFO L124 PetriNetUnfolderBase]: 52/493 cut-off events. [2024-11-28 04:29:14,631 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:29:14,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 493 events. 52/493 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1870 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 257. Up to 8 conditions per place. [2024-11-28 04:29:14,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 320 places, 352 transitions, 711 flow [2024-11-28 04:29:14,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 320 places, 352 transitions, 711 flow [2024-11-28 04:29:14,680 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:29:14,703 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;@2a3e6d4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:29:14,705 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-28 04:29:14,771 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:29:14,772 INFO L124 PetriNetUnfolderBase]: 5/124 cut-off events. [2024-11-28 04:29:14,772 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:29:14,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:14,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:14,775 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:29:14,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:14,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1364297715, now seen corresponding path program 1 times [2024-11-28 04:29:14,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:14,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641926960] [2024-11-28 04:29:14,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:14,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:15,409 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 04:29:15,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:15,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641926960] [2024-11-28 04:29:15,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641926960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:15,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:15,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:15,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395936142] [2024-11-28 04:29:15,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:15,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:15,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:15,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:15,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:15,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 352 [2024-11-28 04:29:15,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 352 transitions, 711 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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 04:29:15,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:15,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 352 [2024-11-28 04:29:15,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:16,133 INFO L124 PetriNetUnfolderBase]: 98/1383 cut-off events. [2024-11-28 04:29:16,135 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-28 04:29:16,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 1383 events. 98/1383 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8943 event pairs, 72 based on Foata normal form. 228/1497 useless extension candidates. Maximal degree in co-relation 1331. Up to 187 conditions per place. [2024-11-28 04:29:16,157 INFO L140 encePairwiseOnDemand]: 320/352 looper letters, 23 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2024-11-28 04:29:16,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 320 transitions, 697 flow [2024-11-28 04:29:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:16,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:29:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2024-11-28 04:29:16,187 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.896780303030303 [2024-11-28 04:29:16,192 INFO L175 Difference]: Start difference. First operand has 320 places, 352 transitions, 711 flow. Second operand 3 states and 947 transitions. [2024-11-28 04:29:16,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 320 transitions, 697 flow [2024-11-28 04:29:16,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 320 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:29:16,219 INFO L231 Difference]: Finished difference. Result has 319 places, 320 transitions, 657 flow [2024-11-28 04:29:16,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=657, PETRI_PLACES=319, PETRI_TRANSITIONS=320} [2024-11-28 04:29:16,228 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, -1 predicate places. [2024-11-28 04:29:16,232 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 320 transitions, 657 flow [2024-11-28 04:29:16,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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 04:29:16,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:16,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:16,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:29:16,237 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:29:16,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:16,239 INFO L85 PathProgramCache]: Analyzing trace with hash 542943824, now seen corresponding path program 1 times [2024-11-28 04:29:16,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:16,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266233177] [2024-11-28 04:29:16,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:16,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:16,724 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 04:29:16,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:16,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266233177] [2024-11-28 04:29:16,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266233177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:16,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936774692] [2024-11-28 04:29:16,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:16,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:16,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:16,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:16,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:29:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:16,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:29:16,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:17,065 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 04:29:17,065 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:17,156 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 04:29:17,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936774692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:17,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:17,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:29:17,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947856360] [2024-11-28 04:29:17,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:17,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:29:17,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:17,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:29:17,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:29:17,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-28 04:29:17,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 320 transitions, 657 flow. Second operand has 10 states, 10 states have (on average 295.8) internal successors, (2958), 10 states have internal predecessors, (2958), 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 04:29:17,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:17,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-28 04:29:17,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:17,943 INFO L124 PetriNetUnfolderBase]: 98/1390 cut-off events. [2024-11-28 04:29:17,944 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-28 04:29:17,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1390 events. 98/1390 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8950 event pairs, 72 based on Foata normal form. 2/1278 useless extension candidates. Maximal degree in co-relation 1507. Up to 187 conditions per place. [2024-11-28 04:29:17,961 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 27 selfloop transitions, 9 changer transitions 0/328 dead transitions. [2024-11-28 04:29:17,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 328 transitions, 747 flow [2024-11-28 04:29:17,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:29:17,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:29:17,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2684 transitions. [2024-11-28 04:29:17,978 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8472222222222222 [2024-11-28 04:29:17,978 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 657 flow. Second operand 9 states and 2684 transitions. [2024-11-28 04:29:17,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 328 transitions, 747 flow [2024-11-28 04:29:17,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 328 transitions, 745 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:29:17,996 INFO L231 Difference]: Finished difference. Result has 329 places, 326 transitions, 705 flow [2024-11-28 04:29:17,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=705, PETRI_PLACES=329, PETRI_TRANSITIONS=326} [2024-11-28 04:29:17,999 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 9 predicate places. [2024-11-28 04:29:18,000 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 326 transitions, 705 flow [2024-11-28 04:29:18,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 295.8) internal successors, (2958), 10 states have internal predecessors, (2958), 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 04:29:18,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:18,004 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:18,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:29:18,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:18,211 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:29:18,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:18,215 INFO L85 PathProgramCache]: Analyzing trace with hash -674821072, now seen corresponding path program 2 times [2024-11-28 04:29:18,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:18,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280590809] [2024-11-28 04:29:18,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:18,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:18,304 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:29:18,304 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:29:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:29:19,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:19,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280590809] [2024-11-28 04:29:19,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280590809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:19,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:19,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:19,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233388364] [2024-11-28 04:29:19,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:19,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:19,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:19,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:19,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:19,975 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 352 [2024-11-28 04:29:19,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 326 transitions, 705 flow. Second operand has 6 states, 6 states have (on average 246.5) internal successors, (1479), 6 states have internal predecessors, (1479), 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 04:29:19,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:19,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 352 [2024-11-28 04:29:19,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:21,866 INFO L124 PetriNetUnfolderBase]: 1445/5814 cut-off events. [2024-11-28 04:29:21,866 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 04:29:21,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8711 conditions, 5814 events. 1445/5814 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 52784 event pairs, 932 based on Foata normal form. 0/5323 useless extension candidates. Maximal degree in co-relation 8587. Up to 2635 conditions per place. [2024-11-28 04:29:21,910 INFO L140 encePairwiseOnDemand]: 325/352 looper letters, 107 selfloop transitions, 86 changer transitions 0/443 dead transitions. [2024-11-28 04:29:21,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 443 transitions, 1325 flow [2024-11-28 04:29:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:21,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:29:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1664 transitions. [2024-11-28 04:29:21,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7878787878787878 [2024-11-28 04:29:21,917 INFO L175 Difference]: Start difference. First operand has 329 places, 326 transitions, 705 flow. Second operand 6 states and 1664 transitions. [2024-11-28 04:29:21,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 443 transitions, 1325 flow [2024-11-28 04:29:21,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 443 transitions, 1319 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 04:29:21,935 INFO L231 Difference]: Finished difference. Result has 338 places, 411 transitions, 1265 flow [2024-11-28 04:29:21,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1265, PETRI_PLACES=338, PETRI_TRANSITIONS=411} [2024-11-28 04:29:21,937 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 18 predicate places. [2024-11-28 04:29:21,938 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 411 transitions, 1265 flow [2024-11-28 04:29:21,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.5) internal successors, (1479), 6 states have internal predecessors, (1479), 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 04:29:21,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:21,940 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:21,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:29:21,940 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:29:21,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:21,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1902227229, now seen corresponding path program 1 times [2024-11-28 04:29:21,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:21,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874079795] [2024-11-28 04:29:21,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:21,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:29:22,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:22,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874079795] [2024-11-28 04:29:22,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874079795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:22,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:22,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:22,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432433681] [2024-11-28 04:29:22,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:22,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:22,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:22,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:22,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:22,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 352 [2024-11-28 04:29:22,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 411 transitions, 1265 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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 04:29:22,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:22,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 352 [2024-11-28 04:29:22,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:22,695 INFO L124 PetriNetUnfolderBase]: 302/2249 cut-off events. [2024-11-28 04:29:22,695 INFO L125 PetriNetUnfolderBase]: For 158/180 co-relation queries the response was YES. [2024-11-28 04:29:22,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3207 conditions, 2249 events. 302/2249 cut-off events. For 158/180 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 17635 event pairs, 88 based on Foata normal form. 1/2070 useless extension candidates. Maximal degree in co-relation 3081. Up to 266 conditions per place. [2024-11-28 04:29:22,718 INFO L140 encePairwiseOnDemand]: 349/352 looper letters, 30 selfloop transitions, 3 changer transitions 0/419 dead transitions. [2024-11-28 04:29:22,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 419 transitions, 1347 flow [2024-11-28 04:29:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:29:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2024-11-28 04:29:22,722 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.875 [2024-11-28 04:29:22,722 INFO L175 Difference]: Start difference. First operand has 338 places, 411 transitions, 1265 flow. Second operand 3 states and 924 transitions. [2024-11-28 04:29:22,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 419 transitions, 1347 flow [2024-11-28 04:29:22,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 419 transitions, 1347 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:29:22,741 INFO L231 Difference]: Finished difference. Result has 341 places, 411 transitions, 1276 flow [2024-11-28 04:29:22,742 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=1265, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1276, PETRI_PLACES=341, PETRI_TRANSITIONS=411} [2024-11-28 04:29:22,744 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 21 predicate places. [2024-11-28 04:29:22,745 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 411 transitions, 1276 flow [2024-11-28 04:29:22,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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 04:29:22,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:22,746 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:22,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:29:22,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:29:22,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:22,748 INFO L85 PathProgramCache]: Analyzing trace with hash -586315600, now seen corresponding path program 1 times [2024-11-28 04:29:22,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:22,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394679372] [2024-11-28 04:29:22,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:23,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:23,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394679372] [2024-11-28 04:29:23,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394679372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:23,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398978644] [2024-11-28 04:29:23,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:23,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:23,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:23,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:23,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:29:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:23,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:29:23,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:23,372 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:23,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:23,548 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:23,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398978644] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:23,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 04:29:23,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797493622] [2024-11-28 04:29:23,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:23,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:29:23,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:23,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:29:23,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:29:23,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-28 04:29:23,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 411 transitions, 1276 flow. Second operand has 18 states, 18 states have (on average 295.94444444444446) internal successors, (5327), 18 states have internal predecessors, (5327), 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 04:29:23,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:23,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-28 04:29:23,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:24,528 INFO L124 PetriNetUnfolderBase]: 288/2231 cut-off events. [2024-11-28 04:29:24,529 INFO L125 PetriNetUnfolderBase]: For 153/180 co-relation queries the response was YES. [2024-11-28 04:29:24,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3420 conditions, 2231 events. 288/2231 cut-off events. For 153/180 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17322 event pairs, 72 based on Foata normal form. 4/2076 useless extension candidates. Maximal degree in co-relation 3218. Up to 436 conditions per place. [2024-11-28 04:29:24,557 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 31 selfloop transitions, 21 changer transitions 0/429 dead transitions. [2024-11-28 04:29:24,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 429 transitions, 1468 flow [2024-11-28 04:29:24,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:29:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 04:29:24,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6230 transitions. [2024-11-28 04:29:24,575 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8428030303030303 [2024-11-28 04:29:24,576 INFO L175 Difference]: Start difference. First operand has 341 places, 411 transitions, 1276 flow. Second operand 21 states and 6230 transitions. [2024-11-28 04:29:24,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 429 transitions, 1468 flow [2024-11-28 04:29:24,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 429 transitions, 1462 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:29:24,592 INFO L231 Difference]: Finished difference. Result has 364 places, 424 transitions, 1400 flow [2024-11-28 04:29:24,593 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1400, PETRI_PLACES=364, PETRI_TRANSITIONS=424} [2024-11-28 04:29:24,593 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 44 predicate places. [2024-11-28 04:29:24,595 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 424 transitions, 1400 flow [2024-11-28 04:29:24,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 295.94444444444446) internal successors, (5327), 18 states have internal predecessors, (5327), 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 04:29:24,599 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:24,600 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:24,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:24,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:24,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:29:24,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:24,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1401836784, now seen corresponding path program 2 times [2024-11-28 04:29:24,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883673133] [2024-11-28 04:29:24,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:24,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:24,879 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:29:24,879 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:29:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:25,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:25,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883673133] [2024-11-28 04:29:25,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883673133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:25,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042909845] [2024-11-28 04:29:25,498 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:25,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:25,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:25,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:25,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:29:25,715 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:29:25,715 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:29:25,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:29:25,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:25,882 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:25,883 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:26,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042909845] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:26,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:26,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 04:29:26,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248456954] [2024-11-28 04:29:26,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:26,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:29:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:26,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:29:26,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:29:26,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-28 04:29:26,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 424 transitions, 1400 flow. Second operand has 23 states, 23 states have (on average 296.04347826086956) internal successors, (6809), 23 states have internal predecessors, (6809), 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 04:29:26,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:26,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-28 04:29:26,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:27,396 INFO L124 PetriNetUnfolderBase]: 288/2246 cut-off events. [2024-11-28 04:29:27,396 INFO L125 PetriNetUnfolderBase]: For 254/281 co-relation queries the response was YES. [2024-11-28 04:29:27,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3520 conditions, 2246 events. 288/2246 cut-off events. For 254/281 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17348 event pairs, 72 based on Foata normal form. 3/2090 useless extension candidates. Maximal degree in co-relation 3218. Up to 436 conditions per place. [2024-11-28 04:29:27,419 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 34 selfloop transitions, 30 changer transitions 0/441 dead transitions. [2024-11-28 04:29:27,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 441 transitions, 1656 flow [2024-11-28 04:29:27,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:29:27,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 04:29:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8887 transitions. [2024-11-28 04:29:27,442 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8415719696969697 [2024-11-28 04:29:27,442 INFO L175 Difference]: Start difference. First operand has 364 places, 424 transitions, 1400 flow. Second operand 30 states and 8887 transitions. [2024-11-28 04:29:27,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 441 transitions, 1656 flow [2024-11-28 04:29:27,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 441 transitions, 1626 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-28 04:29:27,462 INFO L231 Difference]: Finished difference. Result has 391 places, 434 transitions, 1528 flow [2024-11-28 04:29:27,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=1376, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1528, PETRI_PLACES=391, PETRI_TRANSITIONS=434} [2024-11-28 04:29:27,464 INFO L279 CegarLoopForPetriNet]: 320 programPoint places, 71 predicate places. [2024-11-28 04:29:27,465 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 434 transitions, 1528 flow [2024-11-28 04:29:27,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 296.04347826086956) internal successors, (6809), 23 states have internal predecessors, (6809), 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 04:29:27,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:27,471 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:27,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:29:27,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:27,675 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-28 04:29:27,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:27,676 INFO L85 PathProgramCache]: Analyzing trace with hash -968822803, now seen corresponding path program 3 times [2024-11-28 04:29:27,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:27,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877271633] [2024-11-28 04:29:27,676 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:29:27,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:27,785 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:29:27,785 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 04:29:27,785 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:29:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:27,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:29:27,889 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:29:27,890 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-28 04:29:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-28 04:29:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-28 04:29:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-28 04:29:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-28 04:29:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-28 04:29:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-28 04:29:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-28 04:29:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-28 04:29:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-28 04:29:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-28 04:29:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-28 04:29:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-28 04:29:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-28 04:29:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-28 04:29:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-28 04:29:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-28 04:29:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-28 04:29:27,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:29:27,896 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2024-11-28 04:29:27,899 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:29:27,899 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 04:29:28,004 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 04:29:28,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 467 transitions, 950 flow [2024-11-28 04:29:28,185 INFO L124 PetriNetUnfolderBase]: 87/777 cut-off events. [2024-11-28 04:29:28,185 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:29:28,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 777 events. 87/777 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3743 event pairs, 0 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 495. Up to 12 conditions per place. [2024-11-28 04:29:28,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 467 transitions, 950 flow [2024-11-28 04:29:28,212 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 467 transitions, 950 flow [2024-11-28 04:29:28,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:29:28,214 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;@2a3e6d4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:29:28,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-28 04:29:28,227 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:29:28,227 INFO L124 PetriNetUnfolderBase]: 5/124 cut-off events. [2024-11-28 04:29:28,227 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:29:28,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:28,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:28,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 04:29:28,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:28,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1791343750, now seen corresponding path program 1 times [2024-11-28 04:29:28,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:28,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43820076] [2024-11-28 04:29:28,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:28,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:28,310 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 04:29:28,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:28,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43820076] [2024-11-28 04:29:28,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43820076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:28,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:28,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:28,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398825129] [2024-11-28 04:29:28,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:28,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:28,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:28,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:28,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:28,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 467 [2024-11-28 04:29:28,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 467 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 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 04:29:28,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:28,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 467 [2024-11-28 04:29:28,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:31,537 INFO L124 PetriNetUnfolderBase]: 1782/12900 cut-off events. [2024-11-28 04:29:31,537 INFO L125 PetriNetUnfolderBase]: For 126/133 co-relation queries the response was YES. [2024-11-28 04:29:31,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15564 conditions, 12900 events. 1782/12900 cut-off events. For 126/133 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 157026 event pairs, 1464 based on Foata normal form. 3189/15021 useless extension candidates. Maximal degree in co-relation 13811. Up to 2601 conditions per place. [2024-11-28 04:29:31,668 INFO L140 encePairwiseOnDemand]: 422/467 looper letters, 33 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2024-11-28 04:29:31,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 926 flow [2024-11-28 04:29:31,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:29:31,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1243 transitions. [2024-11-28 04:29:31,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8872234118486795 [2024-11-28 04:29:31,674 INFO L175 Difference]: Start difference. First operand has 421 places, 467 transitions, 950 flow. Second operand 3 states and 1243 transitions. [2024-11-28 04:29:31,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 926 flow [2024-11-28 04:29:31,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 420 transitions, 926 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:29:31,686 INFO L231 Difference]: Finished difference. Result has 418 places, 420 transitions, 866 flow [2024-11-28 04:29:31,690 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=418, PETRI_TRANSITIONS=420} [2024-11-28 04:29:31,691 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, -3 predicate places. [2024-11-28 04:29:31,691 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 420 transitions, 866 flow [2024-11-28 04:29:31,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 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 04:29:31,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:31,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:31,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:29:31,692 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 04:29:31,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:31,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1596877136, now seen corresponding path program 1 times [2024-11-28 04:29:31,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:31,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492604809] [2024-11-28 04:29:31,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:31,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:31,858 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 04:29:31,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492604809] [2024-11-28 04:29:31,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492604809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425798468] [2024-11-28 04:29:31,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:31,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:31,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:31,862 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:31,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:29:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:32,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:29:32,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:32,074 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 04:29:32,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:29:32,135 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 04:29:32,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425798468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:29:32,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:29:32,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:29:32,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083770573] [2024-11-28 04:29:32,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:29:32,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:29:32,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:32,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:29:32,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:29:32,182 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 467 [2024-11-28 04:29:32,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 420 transitions, 866 flow. Second operand has 10 states, 10 states have (on average 386.8) internal successors, (3868), 10 states have internal predecessors, (3868), 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 04:29:32,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:32,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 467 [2024-11-28 04:29:32,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:34,874 INFO L124 PetriNetUnfolderBase]: 1782/12907 cut-off events. [2024-11-28 04:29:34,874 INFO L125 PetriNetUnfolderBase]: For 123/130 co-relation queries the response was YES. [2024-11-28 04:29:34,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15590 conditions, 12907 events. 1782/12907 cut-off events. For 123/130 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 156890 event pairs, 1464 based on Foata normal form. 2/11841 useless extension candidates. Maximal degree in co-relation 15494. Up to 2601 conditions per place. [2024-11-28 04:29:34,962 INFO L140 encePairwiseOnDemand]: 461/467 looper letters, 37 selfloop transitions, 9 changer transitions 0/428 dead transitions. [2024-11-28 04:29:34,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 428 transitions, 976 flow [2024-11-28 04:29:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:29:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:29:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3513 transitions. [2024-11-28 04:29:34,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8358315488936474 [2024-11-28 04:29:34,972 INFO L175 Difference]: Start difference. First operand has 418 places, 420 transitions, 866 flow. Second operand 9 states and 3513 transitions. [2024-11-28 04:29:34,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 428 transitions, 976 flow [2024-11-28 04:29:34,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 428 transitions, 974 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:29:34,982 INFO L231 Difference]: Finished difference. Result has 428 places, 426 transitions, 914 flow [2024-11-28 04:29:34,982 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=914, PETRI_PLACES=428, PETRI_TRANSITIONS=426} [2024-11-28 04:29:34,983 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, 7 predicate places. [2024-11-28 04:29:34,983 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 426 transitions, 914 flow [2024-11-28 04:29:34,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 386.8) internal successors, (3868), 10 states have internal predecessors, (3868), 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 04:29:34,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:34,986 INFO L206 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:34,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:29:35,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f6afc7d-9d00-47f9-a535-f5da3b0cd1ee/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:35,190 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 04:29:35,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:35,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1406284912, now seen corresponding path program 2 times [2024-11-28 04:29:35,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:35,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707313171] [2024-11-28 04:29:35,191 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:29:35,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:35,220 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:29:35,222 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:29:35,770 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:29:35,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:35,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707313171] [2024-11-28 04:29:35,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707313171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:35,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:35,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:35,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430520623] [2024-11-28 04:29:35,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:35,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:35,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:35,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:35,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:36,331 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 467 [2024-11-28 04:29:36,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 426 transitions, 914 flow. Second operand has 6 states, 6 states have (on average 317.5) internal successors, (1905), 6 states have internal predecessors, (1905), 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 04:29:36,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:36,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 467 [2024-11-28 04:29:36,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:30:14,989 INFO L124 PetriNetUnfolderBase]: 86469/215317 cut-off events. [2024-11-28 04:30:14,989 INFO L125 PetriNetUnfolderBase]: For 1237/1237 co-relation queries the response was YES.