./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.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_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/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_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/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_aa7efd1b-6a86-4551-97e2-33be7ef04142/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 c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:58:38,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:58:38,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:58:38,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:58:38,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:58:38,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:58:38,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:58:38,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:58:38,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:58:38,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:58:38,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:58:38,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:58:38,945 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:58:38,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:58:38,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:58:38,945 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:58:38,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:58:38,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:58:38,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:58:38,946 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:58:38,946 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:58:38,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:38,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:38,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:38,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:58:38,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:38,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:38,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:38,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:58:38,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:58:38,949 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:58:38,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:58:38,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:58:38,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:58:38,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:58:38,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:58:38,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:58:38,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:58:38,950 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_aa7efd1b-6a86-4551-97e2-33be7ef04142/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 -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2024-11-28 04:58:39,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:58:39,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:58:39,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:58:39,279 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:58:39,279 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:58:39,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2024-11-28 04:58:42,266 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/data/435c96719/8b62c86773bf46bc82f29a4bfe9fb375/FLAGb443640e8 [2024-11-28 04:58:42,669 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:58:42,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2024-11-28 04:58:42,697 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/data/435c96719/8b62c86773bf46bc82f29a4bfe9fb375/FLAGb443640e8 [2024-11-28 04:58:42,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/data/435c96719/8b62c86773bf46bc82f29a4bfe9fb375 [2024-11-28 04:58:42,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:58:42,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:58:42,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:58:42,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:58:42,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:58:42,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:58:42" (1/1) ... [2024-11-28 04:58:42,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18919c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:42, skipping insertion in model container [2024-11-28 04:58:42,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:58:42" (1/1) ... [2024-11-28 04:58:42,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:58:43,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:58:43,202 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:58:43,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:58:43,345 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:58:43,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43 WrapperNode [2024-11-28 04:58:43,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:58:43,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:58:43,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:58:43,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:58:43,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,398 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-11-28 04:58:43,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:58:43,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:58:43,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:58:43,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:58:43,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,421 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:58:43,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:58:43,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:58:43,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:58:43,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (1/1) ... [2024-11-28 04:58:43,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:43,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:43,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:58:43,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:58:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:58:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:58:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:58:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:58:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:58:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:58:43,510 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:58:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:58:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:58:43,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:58:43,512 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 04:58:43,695 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:58:43,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:58:44,189 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:58:44,190 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:58:44,258 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:58:44,261 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:58:44,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:58:44 BoogieIcfgContainer [2024-11-28 04:58:44,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:58:44,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:58:44,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:58:44,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:58:44,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:58:42" (1/3) ... [2024-11-28 04:58:44,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f559875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:58:44, skipping insertion in model container [2024-11-28 04:58:44,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:43" (2/3) ... [2024-11-28 04:58:44,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f559875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:58:44, skipping insertion in model container [2024-11-28 04:58:44,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:58:44" (3/3) ... [2024-11-28 04:58:44,272 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2024-11-28 04:58:44,290 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:58:44,293 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_07-tricky_address2.i that has 2 procedures, 158 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-28 04:58:44,293 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:58:44,408 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:58:44,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 161 transitions, 326 flow [2024-11-28 04:58:44,574 INFO L124 PetriNetUnfolderBase]: 4/160 cut-off events. [2024-11-28 04:58:44,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:58:44,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 160 events. 4/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-28 04:58:44,589 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 161 transitions, 326 flow [2024-11-28 04:58:44,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 160 transitions, 323 flow [2024-11-28 04:58:44,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:58:44,621 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;@b819a4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:58:44,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 04:58:44,651 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:58:44,651 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-28 04:58:44,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:58:44,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:44,652 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] [2024-11-28 04:58:44,652 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:44,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:44,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1129090698, now seen corresponding path program 1 times [2024-11-28 04:58:44,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:44,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566346777] [2024-11-28 04:58:44,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:44,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:45,157 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 04:58:45,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:45,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566346777] [2024-11-28 04:58:45,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566346777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:45,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:45,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:58:45,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884583775] [2024-11-28 04:58:45,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:58:45,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:45,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:58:45,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:58:45,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2024-11-28 04:58:45,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 160 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 04:58:45,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:45,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2024-11-28 04:58:45,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:45,362 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2024-11-28 04:58:45,362 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:58:45,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 321 event pairs, 6 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 144. Up to 24 conditions per place. [2024-11-28 04:58:45,367 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-28 04:58:45,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2024-11-28 04:58:45,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:58:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:58:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-28 04:58:45,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2024-11-28 04:58:45,391 INFO L175 Difference]: Start difference. First operand has 160 places, 160 transitions, 323 flow. Second operand 3 states and 458 transitions. [2024-11-28 04:58:45,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2024-11-28 04:58:45,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:58:45,407 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2024-11-28 04:58:45,410 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-11-28 04:58:45,416 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2024-11-28 04:58:45,417 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2024-11-28 04:58:45,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 04:58:45,419 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:45,419 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, 1] [2024-11-28 04:58:45,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:58:45,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:45,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:45,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1376573233, now seen corresponding path program 1 times [2024-11-28 04:58:45,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:45,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981893811] [2024-11-28 04:58:45,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:45,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:45,768 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 04:58:45,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:45,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981893811] [2024-11-28 04:58:45,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981893811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:45,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186408540] [2024-11-28 04:58:45,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:45,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:45,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:45,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:45,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:58:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:45,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:58:45,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:46,045 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 04:58:46,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:46,119 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 04:58:46,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186408540] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:58:46,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:58:46,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:58:46,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499694401] [2024-11-28 04:58:46,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:46,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:58:46,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:46,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:58:46,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:58:46,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 04:58:46,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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 04:58:46,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:46,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 04:58:46,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:46,409 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2024-11-28 04:58:46,409 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:58:46,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 227 events. 7/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 316 event pairs, 6 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 191. Up to 24 conditions per place. [2024-11-28 04:58:46,412 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-28 04:58:46,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2024-11-28 04:58:46,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:58:46,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:58:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-11-28 04:58:46,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.911663216011042 [2024-11-28 04:58:46,422 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2024-11-28 04:58:46,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2024-11-28 04:58:46,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:58:46,429 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2024-11-28 04:58:46,430 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2024-11-28 04:58:46,431 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-11-28 04:58:46,431 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2024-11-28 04:58:46,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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 04:58:46,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:46,433 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] [2024-11-28 04:58:46,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:58:46,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:46,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:46,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:46,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1016235601, now seen corresponding path program 2 times [2024-11-28 04:58:46,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:46,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659150074] [2024-11-28 04:58:46,637 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:58:46,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:46,693 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:58:46,693 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:47,620 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 04:58:47,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:47,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659150074] [2024-11-28 04:58:47,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659150074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:47,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:47,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:58:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069105309] [2024-11-28 04:58:47,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:47,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:58:47,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:47,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:58:47,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:58:48,395 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2024-11-28 04:58:48,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 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 04:58:48,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:48,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2024-11-28 04:58:48,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:48,683 INFO L124 PetriNetUnfolderBase]: 129/676 cut-off events. [2024-11-28 04:58:48,683 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 04:58:48,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 676 events. 129/676 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3538 event pairs, 46 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 893. Up to 178 conditions per place. [2024-11-28 04:58:48,692 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 43 selfloop transitions, 22 changer transitions 0/204 dead transitions. [2024-11-28 04:58:48,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 204 transitions, 586 flow [2024-11-28 04:58:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:58:48,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:58:48,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 870 transitions. [2024-11-28 04:58:48,696 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9006211180124224 [2024-11-28 04:58:48,696 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 870 transitions. [2024-11-28 04:58:48,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 204 transitions, 586 flow [2024-11-28 04:58:48,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 204 transitions, 580 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 04:58:48,707 INFO L231 Difference]: Finished difference. Result has 179 places, 185 transitions, 514 flow [2024-11-28 04:58:48,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=179, PETRI_TRANSITIONS=185} [2024-11-28 04:58:48,708 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 19 predicate places. [2024-11-28 04:58:48,708 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 185 transitions, 514 flow [2024-11-28 04:58:48,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 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 04:58:48,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:48,709 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:48,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:58:48,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:48,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:48,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1659974846, now seen corresponding path program 1 times [2024-11-28 04:58:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:48,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429174460] [2024-11-28 04:58:48,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:48,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:48,972 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 04:58:48,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:48,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429174460] [2024-11-28 04:58:48,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429174460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616755039] [2024-11-28 04:58:48,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:48,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:48,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:48,976 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:48,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:58:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:49,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:58:49,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:49,174 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 04:58:49,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:49,310 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 04:58:49,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616755039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:58:49,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:58:49,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 04:58:49,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239197200] [2024-11-28 04:58:49,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:49,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:58:49,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:49,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:58:49,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:58:49,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 04:58:49,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 185 transitions, 514 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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 04:58:49,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:49,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 04:58:49,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:49,751 INFO L124 PetriNetUnfolderBase]: 41/503 cut-off events. [2024-11-28 04:58:49,751 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-28 04:58:49,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 503 events. 41/503 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2248 event pairs, 16 based on Foata normal form. 4/480 useless extension candidates. Maximal degree in co-relation 626. Up to 55 conditions per place. [2024-11-28 04:58:49,756 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 18 selfloop transitions, 21 changer transitions 0/203 dead transitions. [2024-11-28 04:58:49,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 203 transitions, 680 flow [2024-11-28 04:58:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:58:49,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 04:58:49,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2024-11-28 04:58:49,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9071280686187518 [2024-11-28 04:58:49,767 INFO L175 Difference]: Start difference. First operand has 179 places, 185 transitions, 514 flow. Second operand 21 states and 3067 transitions. [2024-11-28 04:58:49,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 203 transitions, 680 flow [2024-11-28 04:58:49,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 203 transitions, 680 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:58:49,778 INFO L231 Difference]: Finished difference. Result has 204 places, 198 transitions, 644 flow [2024-11-28 04:58:49,779 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=644, PETRI_PLACES=204, PETRI_TRANSITIONS=198} [2024-11-28 04:58:49,780 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 44 predicate places. [2024-11-28 04:58:49,781 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 198 transitions, 644 flow [2024-11-28 04:58:49,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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 04:58:49,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:49,783 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:58:49,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:58:49,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:49,984 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:49,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:49,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1722331522, now seen corresponding path program 2 times [2024-11-28 04:58:49,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:49,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276780139] [2024-11-28 04:58:49,985 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:58:49,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:50,019 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:58:50,019 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:50,569 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 04:58:50,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:50,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276780139] [2024-11-28 04:58:50,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276780139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:50,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:50,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:58:50,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336326394] [2024-11-28 04:58:50,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:50,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:58:50,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:50,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:58:50,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:58:51,185 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 161 [2024-11-28 04:58:51,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 198 transitions, 644 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 04:58:51,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:51,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 161 [2024-11-28 04:58:51,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:51,680 INFO L124 PetriNetUnfolderBase]: 306/1335 cut-off events. [2024-11-28 04:58:51,680 INFO L125 PetriNetUnfolderBase]: For 285/295 co-relation queries the response was YES. [2024-11-28 04:58:51,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 1335 events. 306/1335 cut-off events. For 285/295 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 9040 event pairs, 116 based on Foata normal form. 5/1228 useless extension candidates. Maximal degree in co-relation 2305. Up to 464 conditions per place. [2024-11-28 04:58:51,695 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 72 selfloop transitions, 36 changer transitions 2/255 dead transitions. [2024-11-28 04:58:51,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 255 transitions, 1016 flow [2024-11-28 04:58:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:58:51,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:58:51,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2024-11-28 04:58:51,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8861283643892339 [2024-11-28 04:58:51,700 INFO L175 Difference]: Start difference. First operand has 204 places, 198 transitions, 644 flow. Second operand 6 states and 856 transitions. [2024-11-28 04:58:51,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 255 transitions, 1016 flow [2024-11-28 04:58:51,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 255 transitions, 992 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 04:58:51,711 INFO L231 Difference]: Finished difference. Result has 207 places, 230 transitions, 872 flow [2024-11-28 04:58:51,711 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=207, PETRI_TRANSITIONS=230} [2024-11-28 04:58:51,713 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 47 predicate places. [2024-11-28 04:58:51,714 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 230 transitions, 872 flow [2024-11-28 04:58:51,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 04:58:51,715 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:51,715 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:58:51,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:58:51,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:51,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:51,717 INFO L85 PathProgramCache]: Analyzing trace with hash -633472428, now seen corresponding path program 1 times [2024-11-28 04:58:51,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:51,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72665548] [2024-11-28 04:58:51,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:51,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:52,227 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 04:58:52,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:52,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72665548] [2024-11-28 04:58:52,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72665548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:52,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937182207] [2024-11-28 04:58:52,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:52,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:52,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:52,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:52,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:58:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:52,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:58:52,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:52,505 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 04:58:52,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:52,781 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 04:58:52,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937182207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:58:52,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:58:52,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 04:58:52,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431757026] [2024-11-28 04:58:52,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:52,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:58:52,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:52,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:58:52,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:58:52,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-28 04:58:52,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 230 transitions, 872 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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 04:58:52,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:52,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-28 04:58:52,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:53,388 INFO L124 PetriNetUnfolderBase]: 120/935 cut-off events. [2024-11-28 04:58:53,388 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-11-28 04:58:53,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1833 conditions, 935 events. 120/935 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5952 event pairs, 33 based on Foata normal form. 3/879 useless extension candidates. Maximal degree in co-relation 1557. Up to 134 conditions per place. [2024-11-28 04:58:53,397 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 21 selfloop transitions, 30 changer transitions 0/247 dead transitions. [2024-11-28 04:58:53,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 247 transitions, 1096 flow [2024-11-28 04:58:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:58:53,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 04:58:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2024-11-28 04:58:53,408 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9055900621118013 [2024-11-28 04:58:53,408 INFO L175 Difference]: Start difference. First operand has 207 places, 230 transitions, 872 flow. Second operand 30 states and 4374 transitions. [2024-11-28 04:58:53,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 247 transitions, 1096 flow [2024-11-28 04:58:53,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 247 transitions, 1072 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-11-28 04:58:53,422 INFO L231 Difference]: Finished difference. Result has 239 places, 240 transitions, 1000 flow [2024-11-28 04:58:53,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1000, PETRI_PLACES=239, PETRI_TRANSITIONS=240} [2024-11-28 04:58:53,423 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 79 predicate places. [2024-11-28 04:58:53,424 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 240 transitions, 1000 flow [2024-11-28 04:58:53,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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 04:58:53,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:53,427 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:58:53,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:58:53,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:53,628 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:53,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:53,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1687787697, now seen corresponding path program 2 times [2024-11-28 04:58:53,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:53,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415687315] [2024-11-28 04:58:53,629 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:58:53,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:53,655 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:58:53,655 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:58:54,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:54,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415687315] [2024-11-28 04:58:54,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415687315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:54,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:54,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:58:54,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108185147] [2024-11-28 04:58:54,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:54,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:58:54,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:54,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:58:54,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:58:54,810 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 161 [2024-11-28 04:58:54,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 240 transitions, 1000 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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 04:58:54,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:54,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 161 [2024-11-28 04:58:54,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:55,218 INFO L124 PetriNetUnfolderBase]: 300/1427 cut-off events. [2024-11-28 04:58:55,218 INFO L125 PetriNetUnfolderBase]: For 880/920 co-relation queries the response was YES. [2024-11-28 04:58:55,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3261 conditions, 1427 events. 300/1427 cut-off events. For 880/920 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 10136 event pairs, 66 based on Foata normal form. 10/1390 useless extension candidates. Maximal degree in co-relation 2983. Up to 443 conditions per place. [2024-11-28 04:58:55,228 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 79 selfloop transitions, 49 changer transitions 0/306 dead transitions. [2024-11-28 04:58:55,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 306 transitions, 1555 flow [2024-11-28 04:58:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:58:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:58:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 880 transitions. [2024-11-28 04:58:55,231 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9109730848861284 [2024-11-28 04:58:55,231 INFO L175 Difference]: Start difference. First operand has 239 places, 240 transitions, 1000 flow. Second operand 6 states and 880 transitions. [2024-11-28 04:58:55,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 306 transitions, 1555 flow [2024-11-28 04:58:55,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 306 transitions, 1509 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-28 04:58:55,243 INFO L231 Difference]: Finished difference. Result has 230 places, 281 transitions, 1370 flow [2024-11-28 04:58:55,244 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1370, PETRI_PLACES=230, PETRI_TRANSITIONS=281} [2024-11-28 04:58:55,245 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 70 predicate places. [2024-11-28 04:58:55,245 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 281 transitions, 1370 flow [2024-11-28 04:58:55,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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 04:58:55,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:55,246 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:58:55,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:58:55,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:55,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:55,247 INFO L85 PathProgramCache]: Analyzing trace with hash 82185300, now seen corresponding path program 1 times [2024-11-28 04:58:55,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:55,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046670001] [2024-11-28 04:58:55,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:55,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:58:55,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:55,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046670001] [2024-11-28 04:58:55,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046670001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:55,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:55,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:58:55,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142428730] [2024-11-28 04:58:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:55,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:58:55,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:55,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:58:55,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:58:56,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 161 [2024-11-28 04:58:56,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 281 transitions, 1370 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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 04:58:56,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:58:56,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 161 [2024-11-28 04:58:56,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:58:57,143 INFO L124 PetriNetUnfolderBase]: 569/2203 cut-off events. [2024-11-28 04:58:57,143 INFO L125 PetriNetUnfolderBase]: For 2427/2487 co-relation queries the response was YES. [2024-11-28 04:58:57,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5833 conditions, 2203 events. 569/2203 cut-off events. For 2427/2487 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 17257 event pairs, 130 based on Foata normal form. 12/2129 useless extension candidates. Maximal degree in co-relation 5572. Up to 803 conditions per place. [2024-11-28 04:58:57,161 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 118 selfloop transitions, 78 changer transitions 11/375 dead transitions. [2024-11-28 04:58:57,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 375 transitions, 2308 flow [2024-11-28 04:58:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:58:57,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:58:57,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2024-11-28 04:58:57,165 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8964803312629399 [2024-11-28 04:58:57,165 INFO L175 Difference]: Start difference. First operand has 230 places, 281 transitions, 1370 flow. Second operand 6 states and 866 transitions. [2024-11-28 04:58:57,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 375 transitions, 2308 flow [2024-11-28 04:58:57,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 375 transitions, 2306 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-28 04:58:57,192 INFO L231 Difference]: Finished difference. Result has 239 places, 329 transitions, 1974 flow [2024-11-28 04:58:57,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1368, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1974, PETRI_PLACES=239, PETRI_TRANSITIONS=329} [2024-11-28 04:58:57,193 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 79 predicate places. [2024-11-28 04:58:57,194 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 329 transitions, 1974 flow [2024-11-28 04:58:57,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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 04:58:57,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:58:57,195 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:58:57,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:58:57,195 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:58:57,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:57,197 INFO L85 PathProgramCache]: Analyzing trace with hash 429872614, now seen corresponding path program 1 times [2024-11-28 04:58:57,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:57,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947003577] [2024-11-28 04:58:57,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:57,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:59:08,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:08,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947003577] [2024-11-28 04:59:08,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947003577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:08,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:08,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:59:08,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380131739] [2024-11-28 04:59:08,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:08,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:59:08,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:08,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:59:08,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:59:11,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-28 04:59:11,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 329 transitions, 1974 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 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 04:59:11,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:11,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-28 04:59:11,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:14,512 INFO L124 PetriNetUnfolderBase]: 1232/4499 cut-off events. [2024-11-28 04:59:14,513 INFO L125 PetriNetUnfolderBase]: For 9411/9652 co-relation queries the response was YES. [2024-11-28 04:59:14,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14333 conditions, 4499 events. 1232/4499 cut-off events. For 9411/9652 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 42020 event pairs, 133 based on Foata normal form. 159/4607 useless extension candidates. Maximal degree in co-relation 14056. Up to 884 conditions per place. [2024-11-28 04:59:14,561 INFO L140 encePairwiseOnDemand]: 134/161 looper letters, 364 selfloop transitions, 83 changer transitions 93/697 dead transitions. [2024-11-28 04:59:14,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 697 transitions, 6113 flow [2024-11-28 04:59:14,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:59:14,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 04:59:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2449 transitions. [2024-11-28 04:59:14,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8005884275907159 [2024-11-28 04:59:14,567 INFO L175 Difference]: Start difference. First operand has 239 places, 329 transitions, 1974 flow. Second operand 19 states and 2449 transitions. [2024-11-28 04:59:14,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 697 transitions, 6113 flow [2024-11-28 04:59:14,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 697 transitions, 6027 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-28 04:59:14,638 INFO L231 Difference]: Finished difference. Result has 268 places, 402 transitions, 3022 flow [2024-11-28 04:59:14,638 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1940, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3022, PETRI_PLACES=268, PETRI_TRANSITIONS=402} [2024-11-28 04:59:14,640 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 108 predicate places. [2024-11-28 04:59:14,640 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 402 transitions, 3022 flow [2024-11-28 04:59:14,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 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 04:59:14,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:14,641 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:14,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:59:14,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:59:14,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1348389900, now seen corresponding path program 2 times [2024-11-28 04:59:14,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:14,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214736990] [2024-11-28 04:59:14,644 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:59:14,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:14,702 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:59:14,702 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:59:20,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:20,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214736990] [2024-11-28 04:59:20,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214736990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:20,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:20,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:59:20,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64061728] [2024-11-28 04:59:20,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:20,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:59:20,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:20,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:59:20,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:59:24,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-28 04:59:24,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 402 transitions, 3022 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 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 04:59:24,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:24,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-28 04:59:24,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:26,871 INFO L124 PetriNetUnfolderBase]: 1199/4443 cut-off events. [2024-11-28 04:59:26,871 INFO L125 PetriNetUnfolderBase]: For 13741/14029 co-relation queries the response was YES. [2024-11-28 04:59:26,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16371 conditions, 4443 events. 1199/4443 cut-off events. For 13741/14029 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 41887 event pairs, 182 based on Foata normal form. 166/4559 useless extension candidates. Maximal degree in co-relation 16082. Up to 1196 conditions per place. [2024-11-28 04:59:26,918 INFO L140 encePairwiseOnDemand]: 134/161 looper letters, 311 selfloop transitions, 119 changer transitions 72/659 dead transitions. [2024-11-28 04:59:26,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 659 transitions, 6426 flow [2024-11-28 04:59:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:59:26,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-28 04:59:26,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2177 transitions. [2024-11-28 04:59:26,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7953964194373402 [2024-11-28 04:59:26,922 INFO L175 Difference]: Start difference. First operand has 268 places, 402 transitions, 3022 flow. Second operand 17 states and 2177 transitions. [2024-11-28 04:59:26,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 659 transitions, 6426 flow [2024-11-28 04:59:27,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 659 transitions, 6409 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-28 04:59:27,022 INFO L231 Difference]: Finished difference. Result has 283 places, 437 transitions, 3831 flow [2024-11-28 04:59:27,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=3007, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3831, PETRI_PLACES=283, PETRI_TRANSITIONS=437} [2024-11-28 04:59:27,024 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 123 predicate places. [2024-11-28 04:59:27,024 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 437 transitions, 3831 flow [2024-11-28 04:59:27,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 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 04:59:27,025 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:27,025 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:27,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:59:27,025 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:59:27,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:27,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1494613304, now seen corresponding path program 3 times [2024-11-28 04:59:27,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:27,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814880333] [2024-11-28 04:59:27,027 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:59:27,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:27,051 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:59:27,051 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:59:27,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:27,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814880333] [2024-11-28 04:59:27,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814880333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:27,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:27,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:59:27,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143590700] [2024-11-28 04:59:27,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:27,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:59:27,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:27,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:59:27,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:59:29,502 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-28 04:59:29,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 437 transitions, 3831 flow. Second operand has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 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 04:59:29,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:29,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-28 04:59:29,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:31,469 INFO L124 PetriNetUnfolderBase]: 2166/7296 cut-off events. [2024-11-28 04:59:31,469 INFO L125 PetriNetUnfolderBase]: For 37433/37904 co-relation queries the response was YES. [2024-11-28 04:59:31,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31815 conditions, 7296 events. 2166/7296 cut-off events. For 37433/37904 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 75518 event pairs, 304 based on Foata normal form. 249/7457 useless extension candidates. Maximal degree in co-relation 31519. Up to 1422 conditions per place. [2024-11-28 04:59:31,542 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 489 selfloop transitions, 166 changer transitions 66/884 dead transitions. [2024-11-28 04:59:31,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 884 transitions, 10409 flow [2024-11-28 04:59:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:59:31,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:59:31,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2039 transitions. [2024-11-28 04:59:31,546 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8443064182194617 [2024-11-28 04:59:31,546 INFO L175 Difference]: Start difference. First operand has 283 places, 437 transitions, 3831 flow. Second operand 15 states and 2039 transitions. [2024-11-28 04:59:31,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 884 transitions, 10409 flow [2024-11-28 04:59:31,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 884 transitions, 10249 flow, removed 51 selfloop flow, removed 10 redundant places. [2024-11-28 04:59:31,907 INFO L231 Difference]: Finished difference. Result has 296 places, 549 transitions, 6053 flow [2024-11-28 04:59:31,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=3760, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6053, PETRI_PLACES=296, PETRI_TRANSITIONS=549} [2024-11-28 04:59:31,908 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 136 predicate places. [2024-11-28 04:59:31,908 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 549 transitions, 6053 flow [2024-11-28 04:59:31,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 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 04:59:31,910 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:31,910 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:31,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:59:31,910 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:59:31,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:31,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1113384828, now seen corresponding path program 4 times [2024-11-28 04:59:31,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:31,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510654133] [2024-11-28 04:59:31,912 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:59:31,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:31,964 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:59:31,964 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 04:59:33,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:33,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510654133] [2024-11-28 04:59:33,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510654133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:33,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:33,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 04:59:33,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074048134] [2024-11-28 04:59:33,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:33,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:59:33,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:33,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:59:33,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:59:37,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-28 04:59:37,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 549 transitions, 6053 flow. Second operand has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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 04:59:37,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:37,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-28 04:59:37,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:40,150 INFO L124 PetriNetUnfolderBase]: 2322/7861 cut-off events. [2024-11-28 04:59:40,150 INFO L125 PetriNetUnfolderBase]: For 53678/54238 co-relation queries the response was YES. [2024-11-28 04:59:40,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37203 conditions, 7861 events. 2322/7861 cut-off events. For 53678/54238 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 83129 event pairs, 371 based on Foata normal form. 404/8184 useless extension candidates. Maximal degree in co-relation 36957. Up to 1529 conditions per place. [2024-11-28 04:59:40,198 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 251 selfloop transitions, 281 changer transitions 49/738 dead transitions. [2024-11-28 04:59:40,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 738 transitions, 9248 flow [2024-11-28 04:59:40,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:59:40,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 04:59:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2288 transitions. [2024-11-28 04:59:40,201 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7895100069013112 [2024-11-28 04:59:40,201 INFO L175 Difference]: Start difference. First operand has 296 places, 549 transitions, 6053 flow. Second operand 18 states and 2288 transitions. [2024-11-28 04:59:40,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 738 transitions, 9248 flow [2024-11-28 04:59:40,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 738 transitions, 9118 flow, removed 51 selfloop flow, removed 4 redundant places. [2024-11-28 04:59:40,652 INFO L231 Difference]: Finished difference. Result has 314 places, 585 transitions, 7384 flow [2024-11-28 04:59:40,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=5953, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7384, PETRI_PLACES=314, PETRI_TRANSITIONS=585} [2024-11-28 04:59:40,655 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 154 predicate places. [2024-11-28 04:59:40,655 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 585 transitions, 7384 flow [2024-11-28 04:59:40,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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 04:59:40,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:40,657 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:40,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:59:40,657 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:59:40,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash -960026550, now seen corresponding path program 5 times [2024-11-28 04:59:40,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:40,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468825041] [2024-11-28 04:59:40,660 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:59:40,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:40,768 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 04:59:40,770 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:49,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:59:49,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468825041] [2024-11-28 04:59:49,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468825041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:49,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985234358] [2024-11-28 04:59:49,842 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:59:49,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:49,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:49,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:49,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:59:50,031 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 04:59:50,032 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:50,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 04:59:50,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:50,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-28 04:59:50,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 04:59:50,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-28 04:59:50,742 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:59:50,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 11 [2024-11-28 04:59:50,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:50,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 04:59:50,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:50,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 04:59:51,040 INFO L349 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2024-11-28 04:59:51,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 63 treesize of output 71 [2024-11-28 04:59:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:59:51,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:51,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-28 04:59:51,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-28 04:59:51,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-11-28 04:59:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 04:59:51,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985234358] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:51,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:59:51,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [32, 25] total 44 [2024-11-28 04:59:51,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884108426] [2024-11-28 04:59:51,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:51,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:59:51,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:59:51,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:59:51,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1814, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 04:59:53,717 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 161 [2024-11-28 04:59:53,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 585 transitions, 7384 flow. Second operand has 10 states, 10 states have (on average 125.1) internal successors, (1251), 10 states have internal predecessors, (1251), 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 04:59:53,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:59:53,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 161 [2024-11-28 04:59:53,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:59:58,049 INFO L124 PetriNetUnfolderBase]: 3180/9704 cut-off events. [2024-11-28 04:59:58,050 INFO L125 PetriNetUnfolderBase]: For 79305/80040 co-relation queries the response was YES. [2024-11-28 04:59:58,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48638 conditions, 9704 events. 3180/9704 cut-off events. For 79305/80040 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 101014 event pairs, 292 based on Foata normal form. 243/9834 useless extension candidates. Maximal degree in co-relation 48358. Up to 1838 conditions per place. [2024-11-28 04:59:58,154 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 570 selfloop transitions, 269 changer transitions 75/1067 dead transitions. [2024-11-28 04:59:58,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 1067 transitions, 14167 flow [2024-11-28 04:59:58,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:59:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 04:59:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2189 transitions. [2024-11-28 04:59:58,158 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8497670807453416 [2024-11-28 04:59:58,158 INFO L175 Difference]: Start difference. First operand has 314 places, 585 transitions, 7384 flow. Second operand 16 states and 2189 transitions. [2024-11-28 04:59:58,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 1067 transitions, 14167 flow [2024-11-28 04:59:58,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1067 transitions, 14016 flow, removed 47 selfloop flow, removed 9 redundant places. [2024-11-28 04:59:58,708 INFO L231 Difference]: Finished difference. Result has 331 places, 688 transitions, 10081 flow [2024-11-28 04:59:58,709 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=7265, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10081, PETRI_PLACES=331, PETRI_TRANSITIONS=688} [2024-11-28 04:59:58,710 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 171 predicate places. [2024-11-28 04:59:58,710 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 688 transitions, 10081 flow [2024-11-28 04:59:58,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.1) internal successors, (1251), 10 states have internal predecessors, (1251), 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 04:59:58,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:59:58,711 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:59:58,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:59:58,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:58,912 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:59:58,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:58,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2041782964, now seen corresponding path program 6 times [2024-11-28 04:59:58,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:58,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271360070] [2024-11-28 04:59:58,913 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:59:58,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:58,959 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 04:59:58,959 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:00:07,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:07,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271360070] [2024-11-28 05:00:07,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271360070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:07,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:07,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:00:07,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511033411] [2024-11-28 05:00:07,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:07,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:00:07,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:07,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:00:07,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:00:15,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-28 05:00:15,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 688 transitions, 10081 flow. Second operand has 13 states, 13 states have (on average 121.07692307692308) internal successors, (1574), 13 states have internal predecessors, (1574), 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 05:00:15,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:00:15,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-28 05:00:15,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:00:23,569 INFO L124 PetriNetUnfolderBase]: 3088/9991 cut-off events. [2024-11-28 05:00:23,569 INFO L125 PetriNetUnfolderBase]: For 110807/111527 co-relation queries the response was YES. [2024-11-28 05:00:23,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54988 conditions, 9991 events. 3088/9991 cut-off events. For 110807/111527 co-relation queries the response was YES. Maximal size of possible extension queue 706. Compared 107314 event pairs, 535 based on Foata normal form. 319/10178 useless extension candidates. Maximal degree in co-relation 54669. Up to 2522 conditions per place. [2024-11-28 05:00:23,694 INFO L140 encePairwiseOnDemand]: 137/161 looper letters, 489 selfloop transitions, 243 changer transitions 30/922 dead transitions. [2024-11-28 05:00:23,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 922 transitions, 14293 flow [2024-11-28 05:00:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:00:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 05:00:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2573 transitions. [2024-11-28 05:00:23,698 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7990683229813664 [2024-11-28 05:00:23,698 INFO L175 Difference]: Start difference. First operand has 331 places, 688 transitions, 10081 flow. Second operand 20 states and 2573 transitions. [2024-11-28 05:00:23,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 922 transitions, 14293 flow [2024-11-28 05:00:24,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 922 transitions, 13972 flow, removed 95 selfloop flow, removed 3 redundant places. [2024-11-28 05:00:24,455 INFO L231 Difference]: Finished difference. Result has 358 places, 719 transitions, 10990 flow [2024-11-28 05:00:24,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=9788, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10990, PETRI_PLACES=358, PETRI_TRANSITIONS=719} [2024-11-28 05:00:24,457 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 198 predicate places. [2024-11-28 05:00:24,457 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 719 transitions, 10990 flow [2024-11-28 05:00:24,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 121.07692307692308) internal successors, (1574), 13 states have internal predecessors, (1574), 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 05:00:24,458 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:00:24,458 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:24,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:00:24,458 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:00:24,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:24,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1571144700, now seen corresponding path program 1 times [2024-11-28 05:00:24,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:24,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731862520] [2024-11-28 05:00:24,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:24,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 05:00:32,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:32,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731862520] [2024-11-28 05:00:32,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731862520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:32,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141666162] [2024-11-28 05:00:32,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:32,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:32,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:32,290 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:32,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:00:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:32,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-28 05:00:32,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:32,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-28 05:00:32,982 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:00:32,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 11 [2024-11-28 05:00:32,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 05:00:33,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-28 05:00:33,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:00:33,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 05:00:33,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:00:33,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 05:00:33,073 INFO L349 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2024-11-28 05:00:33,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 71 treesize of output 60 [2024-11-28 05:00:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 05:00:33,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:33,347 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:00:33,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141666162] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:33,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:00:33,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13, 23] total 32 [2024-11-28 05:00:33,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719422896] [2024-11-28 05:00:33,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:33,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:00:33,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:33,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:00:33,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=949, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 05:00:34,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 161 [2024-11-28 05:00:34,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 719 transitions, 10990 flow. Second operand has 11 states, 11 states have (on average 131.36363636363637) internal successors, (1445), 11 states have internal predecessors, (1445), 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 05:00:34,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:00:34,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 161 [2024-11-28 05:00:34,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:00:37,605 INFO L124 PetriNetUnfolderBase]: 2544/9076 cut-off events. [2024-11-28 05:00:37,605 INFO L125 PetriNetUnfolderBase]: For 113726/114625 co-relation queries the response was YES. [2024-11-28 05:00:37,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49870 conditions, 9076 events. 2544/9076 cut-off events. For 113726/114625 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 101895 event pairs, 230 based on Foata normal form. 376/9357 useless extension candidates. Maximal degree in co-relation 49539. Up to 1771 conditions per place. [2024-11-28 05:00:37,674 INFO L140 encePairwiseOnDemand]: 144/161 looper letters, 567 selfloop transitions, 153 changer transitions 85/1066 dead transitions. [2024-11-28 05:00:37,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 1066 transitions, 17963 flow [2024-11-28 05:00:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:00:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-28 05:00:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2471 transitions. [2024-11-28 05:00:37,676 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8526570048309179 [2024-11-28 05:00:37,676 INFO L175 Difference]: Start difference. First operand has 358 places, 719 transitions, 10990 flow. Second operand 18 states and 2471 transitions. [2024-11-28 05:00:37,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 1066 transitions, 17963 flow [2024-11-28 05:00:38,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 1066 transitions, 17464 flow, removed 51 selfloop flow, removed 7 redundant places. [2024-11-28 05:00:38,307 INFO L231 Difference]: Finished difference. Result has 380 places, 781 transitions, 11945 flow [2024-11-28 05:00:38,308 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=10583, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11945, PETRI_PLACES=380, PETRI_TRANSITIONS=781} [2024-11-28 05:00:38,308 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 220 predicate places. [2024-11-28 05:00:38,308 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 781 transitions, 11945 flow [2024-11-28 05:00:38,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.36363636363637) internal successors, (1445), 11 states have internal predecessors, (1445), 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 05:00:38,309 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:00:38,309 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:38,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:00:38,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 05:00:38,509 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:00:38,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash 372632304, now seen corresponding path program 7 times [2024-11-28 05:00:38,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:38,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770746337] [2024-11-28 05:00:38,511 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 05:00:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:45,272 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 05:00:45,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:45,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770746337] [2024-11-28 05:00:45,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770746337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:45,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248041478] [2024-11-28 05:00:45,273 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 05:00:45,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:45,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:45,274 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:45,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:00:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:45,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-28 05:00:45,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:46,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-28 05:00:46,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 05:00:46,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-28 05:00:46,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 05:00:46,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 05:00:46,757 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:00:46,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 11 [2024-11-28 05:00:46,819 INFO L349 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2024-11-28 05:00:46,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 63 treesize of output 71 [2024-11-28 05:00:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 05:00:46,939 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:47,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-28 05:00:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:00:47,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248041478] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:47,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:00:47,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13, 27] total 46 [2024-11-28 05:00:47,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776331103] [2024-11-28 05:00:47,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:47,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:00:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:47,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:00:47,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1981, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 05:00:50,093 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 161 [2024-11-28 05:00:50,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 781 transitions, 11945 flow. Second operand has 11 states, 11 states have (on average 124.9090909090909) internal successors, (1374), 11 states have internal predecessors, (1374), 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 05:00:50,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:00:50,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 161 [2024-11-28 05:00:50,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:00:55,984 INFO L124 PetriNetUnfolderBase]: 3582/11430 cut-off events. [2024-11-28 05:00:55,984 INFO L125 PetriNetUnfolderBase]: For 148238/149123 co-relation queries the response was YES. [2024-11-28 05:00:56,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67649 conditions, 11430 events. 3582/11430 cut-off events. For 148238/149123 co-relation queries the response was YES. Maximal size of possible extension queue 785. Compared 126618 event pairs, 369 based on Foata normal form. 412/11725 useless extension candidates. Maximal degree in co-relation 67307. Up to 2584 conditions per place. [2024-11-28 05:00:56,112 INFO L140 encePairwiseOnDemand]: 133/161 looper letters, 548 selfloop transitions, 434 changer transitions 74/1214 dead transitions. [2024-11-28 05:00:56,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 1214 transitions, 20572 flow [2024-11-28 05:00:56,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:00:56,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-28 05:00:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2277 transitions. [2024-11-28 05:00:56,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8319327731092437 [2024-11-28 05:00:56,114 INFO L175 Difference]: Start difference. First operand has 380 places, 781 transitions, 11945 flow. Second operand 17 states and 2277 transitions. [2024-11-28 05:00:56,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 1214 transitions, 20572 flow [2024-11-28 05:00:57,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 1214 transitions, 20440 flow, removed 66 selfloop flow, removed 2 redundant places. [2024-11-28 05:00:57,162 INFO L231 Difference]: Finished difference. Result has 403 places, 873 transitions, 14980 flow [2024-11-28 05:00:57,162 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=11879, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=341, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14980, PETRI_PLACES=403, PETRI_TRANSITIONS=873} [2024-11-28 05:00:57,163 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 243 predicate places. [2024-11-28 05:00:57,163 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 873 transitions, 14980 flow [2024-11-28 05:00:57,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.9090909090909) internal successors, (1374), 11 states have internal predecessors, (1374), 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 05:00:57,163 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:00:57,164 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:00:57,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:00:57,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 05:00:57,364 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:00:57,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:57,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1063211564, now seen corresponding path program 8 times [2024-11-28 05:00:57,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:57,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922903594] [2024-11-28 05:00:57,365 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:00:57,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:57,390 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:00:57,390 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:01:02,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:02,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922903594] [2024-11-28 05:01:02,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922903594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:01:02,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:01:02,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:01:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840197221] [2024-11-28 05:01:02,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:01:02,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:01:02,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:02,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:01:02,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:01:08,872 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-28 05:01:08,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 873 transitions, 14980 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 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 05:01:08,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:01:08,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-28 05:01:08,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:01:18,048 INFO L124 PetriNetUnfolderBase]: 4359/14471 cut-off events. [2024-11-28 05:01:18,049 INFO L125 PetriNetUnfolderBase]: For 228047/229123 co-relation queries the response was YES. [2024-11-28 05:01:18,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91103 conditions, 14471 events. 4359/14471 cut-off events. For 228047/229123 co-relation queries the response was YES. Maximal size of possible extension queue 1006. Compared 168158 event pairs, 619 based on Foata normal form. 463/14761 useless extension candidates. Maximal degree in co-relation 90751. Up to 3343 conditions per place. [2024-11-28 05:01:18,297 INFO L140 encePairwiseOnDemand]: 137/161 looper letters, 859 selfloop transitions, 348 changer transitions 78/1451 dead transitions. [2024-11-28 05:01:18,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 1451 transitions, 27982 flow [2024-11-28 05:01:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:01:18,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 05:01:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2604 transitions. [2024-11-28 05:01:18,302 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.808695652173913 [2024-11-28 05:01:18,303 INFO L175 Difference]: Start difference. First operand has 403 places, 873 transitions, 14980 flow. Second operand 20 states and 2604 transitions. [2024-11-28 05:01:18,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 1451 transitions, 27982 flow [2024-11-28 05:01:21,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 1451 transitions, 27051 flow, removed 191 selfloop flow, removed 2 redundant places. [2024-11-28 05:01:21,074 INFO L231 Difference]: Finished difference. Result has 438 places, 1024 transitions, 19788 flow [2024-11-28 05:01:21,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=14385, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=873, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19788, PETRI_PLACES=438, PETRI_TRANSITIONS=1024} [2024-11-28 05:01:21,075 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 278 predicate places. [2024-11-28 05:01:21,075 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1024 transitions, 19788 flow [2024-11-28 05:01:21,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 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 05:01:21,076 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:01:21,076 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:01:21,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:01:21,077 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:01:21,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:21,079 INFO L85 PathProgramCache]: Analyzing trace with hash -778825620, now seen corresponding path program 9 times [2024-11-28 05:01:21,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:21,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303220177] [2024-11-28 05:01:21,079 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:01:21,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:21,105 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 05:01:21,105 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:21,884 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:01:21,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:21,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303220177] [2024-11-28 05:01:21,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303220177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:01:21,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:01:21,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:01:21,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291278177] [2024-11-28 05:01:21,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:01:21,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:01:21,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:21,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:01:21,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:01:23,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-28 05:01:23,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1024 transitions, 19788 flow. Second operand has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 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 05:01:23,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:01:23,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-28 05:01:23,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:01:31,390 INFO L124 PetriNetUnfolderBase]: 4231/14574 cut-off events. [2024-11-28 05:01:31,390 INFO L125 PetriNetUnfolderBase]: For 276149/277172 co-relation queries the response was YES. [2024-11-28 05:01:31,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96399 conditions, 14574 events. 4231/14574 cut-off events. For 276149/277172 co-relation queries the response was YES. Maximal size of possible extension queue 1025. Compared 174271 event pairs, 750 based on Foata normal form. 391/14759 useless extension candidates. Maximal degree in co-relation 96028. Up to 3336 conditions per place. [2024-11-28 05:01:31,731 INFO L140 encePairwiseOnDemand]: 142/161 looper letters, 572 selfloop transitions, 445 changer transitions 52/1251 dead transitions. [2024-11-28 05:01:31,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 1251 transitions, 26173 flow [2024-11-28 05:01:31,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:01:31,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 05:01:31,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1885 transitions. [2024-11-28 05:01:31,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8362910381543922 [2024-11-28 05:01:31,736 INFO L175 Difference]: Start difference. First operand has 438 places, 1024 transitions, 19788 flow. Second operand 14 states and 1885 transitions. [2024-11-28 05:01:31,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 1251 transitions, 26173 flow [2024-11-28 05:01:35,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 1251 transitions, 25989 flow, removed 63 selfloop flow, removed 6 redundant places. [2024-11-28 05:01:35,081 INFO L231 Difference]: Finished difference. Result has 451 places, 1076 transitions, 22592 flow [2024-11-28 05:01:35,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=19648, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1024, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=387, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22592, PETRI_PLACES=451, PETRI_TRANSITIONS=1076} [2024-11-28 05:01:35,082 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 291 predicate places. [2024-11-28 05:01:35,083 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 1076 transitions, 22592 flow [2024-11-28 05:01:35,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 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 05:01:35,083 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:01:35,083 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:01:35,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:01:35,084 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:01:35,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:35,086 INFO L85 PathProgramCache]: Analyzing trace with hash 501569304, now seen corresponding path program 10 times [2024-11-28 05:01:35,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:35,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307997534] [2024-11-28 05:01:35,086 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:01:35,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:35,116 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:01:35,116 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:01:36,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307997534] [2024-11-28 05:01:36,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307997534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:01:36,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:01:36,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:01:36,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899294671] [2024-11-28 05:01:36,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:01:36,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:01:36,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:36,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:01:36,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:01:41,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-28 05:01:41,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1076 transitions, 22592 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 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 05:01:41,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:01:41,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-28 05:01:41,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:01:51,259 INFO L124 PetriNetUnfolderBase]: 4406/14985 cut-off events. [2024-11-28 05:01:51,259 INFO L125 PetriNetUnfolderBase]: For 319182/320132 co-relation queries the response was YES. [2024-11-28 05:01:51,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102864 conditions, 14985 events. 4406/14985 cut-off events. For 319182/320132 co-relation queries the response was YES. Maximal size of possible extension queue 1030. Compared 177584 event pairs, 632 based on Foata normal form. 442/15255 useless extension candidates. Maximal degree in co-relation 102487. Up to 3413 conditions per place. [2024-11-28 05:01:51,455 INFO L140 encePairwiseOnDemand]: 138/161 looper letters, 819 selfloop transitions, 472 changer transitions 44/1501 dead transitions. [2024-11-28 05:01:51,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 1501 transitions, 32327 flow [2024-11-28 05:01:51,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 05:01:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 05:01:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2847 transitions. [2024-11-28 05:01:51,458 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8037831733483908 [2024-11-28 05:01:51,458 INFO L175 Difference]: Start difference. First operand has 451 places, 1076 transitions, 22592 flow. Second operand 22 states and 2847 transitions. [2024-11-28 05:01:51,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 1501 transitions, 32327 flow [2024-11-28 05:01:54,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 1501 transitions, 31675 flow, removed 166 selfloop flow, removed 6 redundant places. [2024-11-28 05:01:54,572 INFO L231 Difference]: Finished difference. Result has 472 places, 1125 transitions, 24585 flow [2024-11-28 05:01:54,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=22065, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=423, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=24585, PETRI_PLACES=472, PETRI_TRANSITIONS=1125} [2024-11-28 05:01:54,578 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 312 predicate places. [2024-11-28 05:01:54,579 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 1125 transitions, 24585 flow [2024-11-28 05:01:54,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 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 05:01:54,579 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:01:54,580 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:01:54,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:01:54,580 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:01:54,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:54,581 INFO L85 PathProgramCache]: Analyzing trace with hash 12935736, now seen corresponding path program 11 times [2024-11-28 05:01:54,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:54,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692798423] [2024-11-28 05:01:54,581 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:01:54,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:54,649 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 05:01:54,649 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 1 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:02,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:02,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692798423] [2024-11-28 05:02:02,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692798423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:02,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659205205] [2024-11-28 05:02:02,525 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:02:02,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:02,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:02,527 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:02,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:02:02,730 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 05:02:02,730 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:02,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 05:02:02,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:03,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 05:02:03,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:02:03,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 05:02:04,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-28 05:02:04,159 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:02:04,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 05:02:04,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:02:04,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:02:04,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-28 05:02:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:02:04,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:02:04,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-11-28 05:02:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 05:02:04,547 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:05,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2024-11-28 05:02:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:02:05,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659205205] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:05,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:02:05,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [35, 26] total 67 [2024-11-28 05:02:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85373678] [2024-11-28 05:02:05,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:05,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:02:05,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:05,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:02:05,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=4281, Unknown=0, NotChecked=0, Total=4556 [2024-11-28 05:02:07,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 161 [2024-11-28 05:02:07,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 1125 transitions, 24585 flow. Second operand has 11 states, 11 states have (on average 124.9090909090909) internal successors, (1374), 11 states have internal predecessors, (1374), 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 05:02:07,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:07,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 161 [2024-11-28 05:02:07,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:16,750 INFO L124 PetriNetUnfolderBase]: 4738/15300 cut-off events. [2024-11-28 05:02:16,751 INFO L125 PetriNetUnfolderBase]: For 349728/350874 co-relation queries the response was YES. [2024-11-28 05:02:16,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108864 conditions, 15300 events. 4738/15300 cut-off events. For 349728/350874 co-relation queries the response was YES. Maximal size of possible extension queue 1054. Compared 180055 event pairs, 546 based on Foata normal form. 444/15588 useless extension candidates. Maximal degree in co-relation 108482. Up to 4860 conditions per place. [2024-11-28 05:02:16,972 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 679 selfloop transitions, 525 changer transitions 63/1430 dead transitions. [2024-11-28 05:02:16,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1430 transitions, 31635 flow [2024-11-28 05:02:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:02:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 05:02:16,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1888 transitions. [2024-11-28 05:02:16,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8376220053238687 [2024-11-28 05:02:16,974 INFO L175 Difference]: Start difference. First operand has 472 places, 1125 transitions, 24585 flow. Second operand 14 states and 1888 transitions. [2024-11-28 05:02:16,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1430 transitions, 31635 flow [2024-11-28 05:02:20,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 1430 transitions, 31053 flow, removed 116 selfloop flow, removed 12 redundant places. [2024-11-28 05:02:20,232 INFO L231 Difference]: Finished difference. Result has 476 places, 1171 transitions, 26681 flow [2024-11-28 05:02:20,232 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=24059, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=478, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=26681, PETRI_PLACES=476, PETRI_TRANSITIONS=1171} [2024-11-28 05:02:20,233 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 316 predicate places. [2024-11-28 05:02:20,233 INFO L471 AbstractCegarLoop]: Abstraction has has 476 places, 1171 transitions, 26681 flow [2024-11-28 05:02:20,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.9090909090909) internal successors, (1374), 11 states have internal predecessors, (1374), 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 05:02:20,233 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:20,234 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:20,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:02:20,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:20,434 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:02:20,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:20,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1798942580, now seen corresponding path program 12 times [2024-11-28 05:02:20,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:20,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283996615] [2024-11-28 05:02:20,436 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 05:02:20,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:20,460 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 05:02:20,460 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:02:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:02:21,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:21,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283996615] [2024-11-28 05:02:21,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283996615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:02:21,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:02:21,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:02:21,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835543368] [2024-11-28 05:02:21,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:21,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:02:21,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:21,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:02:21,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:02:22,803 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-11-28 05:02:22,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 1171 transitions, 26681 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 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 05:02:22,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:22,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-11-28 05:02:22,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:02:30,549 INFO L124 PetriNetUnfolderBase]: 4307/14948 cut-off events. [2024-11-28 05:02:30,550 INFO L125 PetriNetUnfolderBase]: For 368459/369510 co-relation queries the response was YES. [2024-11-28 05:02:30,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108183 conditions, 14948 events. 4307/14948 cut-off events. For 368459/369510 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 180139 event pairs, 639 based on Foata normal form. 449/15207 useless extension candidates. Maximal degree in co-relation 107798. Up to 3560 conditions per place. [2024-11-28 05:02:30,731 INFO L140 encePairwiseOnDemand]: 142/161 looper letters, 715 selfloop transitions, 499 changer transitions 58/1451 dead transitions. [2024-11-28 05:02:30,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 1451 transitions, 34167 flow [2024-11-28 05:02:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:02:30,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-28 05:02:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2539 transitions. [2024-11-28 05:02:30,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.830009807126512 [2024-11-28 05:02:30,734 INFO L175 Difference]: Start difference. First operand has 476 places, 1171 transitions, 26681 flow. Second operand 19 states and 2539 transitions. [2024-11-28 05:02:30,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 1451 transitions, 34167 flow [2024-11-28 05:02:34,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1451 transitions, 33339 flow, removed 70 selfloop flow, removed 6 redundant places. [2024-11-28 05:02:34,188 INFO L231 Difference]: Finished difference. Result has 497 places, 1197 transitions, 28361 flow [2024-11-28 05:02:34,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=25910, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=458, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=28361, PETRI_PLACES=497, PETRI_TRANSITIONS=1197} [2024-11-28 05:02:34,190 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 337 predicate places. [2024-11-28 05:02:34,190 INFO L471 AbstractCegarLoop]: Abstraction has has 497 places, 1197 transitions, 28361 flow [2024-11-28 05:02:34,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 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 05:02:34,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:02:34,191 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:34,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:02:34,191 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:02:34,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash -436778514, now seen corresponding path program 13 times [2024-11-28 05:02:34,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:02:34,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706006033] [2024-11-28 05:02:34,194 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 05:02:34,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:02:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 05:02:38,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:02:38,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706006033] [2024-11-28 05:02:38,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706006033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:38,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768376147] [2024-11-28 05:02:38,550 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 05:02:38,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:38,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:38,551 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:38,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7efd1b-6a86-4551-97e2-33be7ef04142/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:02:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:38,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 05:02:38,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:39,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-28 05:02:39,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 05:02:39,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-28 05:02:39,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-28 05:02:39,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-28 05:02:39,613 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 05:02:39,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 11 [2024-11-28 05:02:39,722 INFO L349 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2024-11-28 05:02:39,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 63 treesize of output 71 [2024-11-28 05:02:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 05:02:39,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:40,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-28 05:02:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-11-28 05:02:40,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768376147] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:40,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:02:40,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13, 23] total 44 [2024-11-28 05:02:40,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000732842] [2024-11-28 05:02:40,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:02:40,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:02:40,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:02:40,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:02:40,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1773, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 05:02:43,003 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 161 [2024-11-28 05:02:43,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 1197 transitions, 28361 flow. Second operand has 11 states, 11 states have (on average 124.9090909090909) internal successors, (1374), 11 states have internal predecessors, (1374), 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 05:02:43,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:02:43,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 161 [2024-11-28 05:02:43,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand