./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.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_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/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_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/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_e8f38404-cc26-4711-87ff-c9de13d125c6/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 ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:40:17,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:40:17,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:40:17,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:40:17,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:40:17,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:40:17,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:40:17,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:40:17,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:40:17,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:40:17,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:40:17,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:40:17,613 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:40:17,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:40:17,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:40:17,614 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:40:17,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:40:17,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:40:17,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:40:17,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:40:17,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:40:17,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:40:17,615 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:40:17,615 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:40:17,616 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:40:17,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:40:17,616 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:40:17,616 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:40:17,616 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:40:17,616 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:40:17,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:40:17,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:40:17,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:40:17,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:40:17,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:40:17,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:40:17,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:40:17,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:40:17,617 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:40:17,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:40:17,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:40:17,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:40:17,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:40:17,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:40:17,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:40:17,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:40:17,618 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_e8f38404-cc26-4711-87ff-c9de13d125c6/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 -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-28 03:40:17,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:40:17,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:40:17,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:40:17,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:40:17,916 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:40:17,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-28 03:40:21,025 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/data/6546c5bc6/3b2c76aa5d5d4f7ebff7a20d36e83fba/FLAG602c68512 [2024-11-28 03:40:21,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:40:21,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-28 03:40:21,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/data/6546c5bc6/3b2c76aa5d5d4f7ebff7a20d36e83fba/FLAG602c68512 [2024-11-28 03:40:21,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/data/6546c5bc6/3b2c76aa5d5d4f7ebff7a20d36e83fba [2024-11-28 03:40:21,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:40:21,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:40:21,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:40:21,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:40:21,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:40:21,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:40:21" (1/1) ... [2024-11-28 03:40:21,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0817e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:21, skipping insertion in model container [2024-11-28 03:40:21,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:40:21" (1/1) ... [2024-11-28 03:40:21,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:40:21,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:40:22,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:40:22,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:40:22,162 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:40:22,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22 WrapperNode [2024-11-28 03:40:22,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:40:22,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:40:22,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:40:22,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:40:22,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,248 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2024-11-28 03:40:22,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:40:22,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:40:22,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:40:22,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:40:22,261 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,275 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:40:22,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:40:22,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:40:22,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:40:22,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (1/1) ... [2024-11-28 03:40:22,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:40:22,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:40:22,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:40:22,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:40:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:40:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:40:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:40:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:40:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:40:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 03:40:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 03:40:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:40:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:40:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:40:22,375 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:40:22,542 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:40:22,544 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:40:22,923 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:40:22,924 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:40:22,971 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:40:22,971 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 03:40:22,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:22 BoogieIcfgContainer [2024-11-28 03:40:22,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:40:22,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:40:22,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:40:22,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:40:22,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:40:21" (1/3) ... [2024-11-28 03:40:22,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb8a0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:40:22, skipping insertion in model container [2024-11-28 03:40:22,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:22" (2/3) ... [2024-11-28 03:40:22,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb8a0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:40:22, skipping insertion in model container [2024-11-28 03:40:22,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:22" (3/3) ... [2024-11-28 03:40:22,982 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-28 03:40:22,998 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:40:23,000 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_02-funloop_norace.i that has 2 procedures, 157 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2024-11-28 03:40:23,000 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:40:23,105 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:40:23,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 162 transitions, 328 flow [2024-11-28 03:40:23,239 INFO L124 PetriNetUnfolderBase]: 6/161 cut-off events. [2024-11-28 03:40:23,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:40:23,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 161 events. 6/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2024-11-28 03:40:23,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 162 transitions, 328 flow [2024-11-28 03:40:23,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 161 transitions, 325 flow [2024-11-28 03:40:23,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:40:23,288 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;@5d5637c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:40:23,288 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 03:40:23,345 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:40:23,345 INFO L124 PetriNetUnfolderBase]: 4/119 cut-off events. [2024-11-28 03:40:23,346 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:40:23,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:23,347 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] [2024-11-28 03:40:23,348 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:23,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash -996743756, now seen corresponding path program 1 times [2024-11-28 03:40:23,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:23,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817468408] [2024-11-28 03:40:23,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:23,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:40:23,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817468408] [2024-11-28 03:40:23,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817468408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:23,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:23,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:40:23,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611525758] [2024-11-28 03:40:23,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:23,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:40:23,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:23,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:40:23,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:40:23,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 162 [2024-11-28 03:40:23,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 161 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:23,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:23,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 162 [2024-11-28 03:40:23,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:24,064 INFO L124 PetriNetUnfolderBase]: 11/244 cut-off events. [2024-11-28 03:40:24,064 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:40:24,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 244 events. 11/244 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 391 event pairs, 6 based on Foata normal form. 10/239 useless extension candidates. Maximal degree in co-relation 179. Up to 26 conditions per place. [2024-11-28 03:40:24,067 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 10 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2024-11-28 03:40:24,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 159 transitions, 345 flow [2024-11-28 03:40:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:40:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:40:24,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2024-11-28 03:40:24,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.948559670781893 [2024-11-28 03:40:24,090 INFO L175 Difference]: Start difference. First operand has 159 places, 161 transitions, 325 flow. Second operand 3 states and 461 transitions. [2024-11-28 03:40:24,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 159 transitions, 345 flow [2024-11-28 03:40:24,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 159 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:40:24,105 INFO L231 Difference]: Finished difference. Result has 161 places, 159 transitions, 330 flow [2024-11-28 03:40:24,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=161, PETRI_TRANSITIONS=159} [2024-11-28 03:40:24,113 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 2 predicate places. [2024-11-28 03:40:24,116 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 159 transitions, 330 flow [2024-11-28 03:40:24,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:24,118 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:24,118 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] [2024-11-28 03:40:24,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:40:24,119 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 03:40:24,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1592108444, now seen corresponding path program 1 times [2024-11-28 03:40:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361760561] [2024-11-28 03:40:24,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:24,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:40:24,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:24,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361760561] [2024-11-28 03:40:24,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361760561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:40:24,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770916009] [2024-11-28 03:40:24,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:24,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:40:24,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:40:24,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:40:24,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:40:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:24,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:40:24,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:40:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:40:24,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:40:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:40:24,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770916009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:40:24,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:40:24,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 03:40:24,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596873878] [2024-11-28 03:40:24,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:40:24,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:40:24,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:24,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:40:24,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:40:24,818 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-28 03:40:24,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 159 transitions, 330 flow. Second operand has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:24,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:24,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-28 03:40:24,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:25,012 INFO L124 PetriNetUnfolderBase]: 11/251 cut-off events. [2024-11-28 03:40:25,013 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:40:25,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 251 events. 11/251 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 6 based on Foata normal form. 2/238 useless extension candidates. Maximal degree in co-relation 217. Up to 26 conditions per place. [2024-11-28 03:40:25,016 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 14 selfloop transitions, 9 changer transitions 0/167 dead transitions. [2024-11-28 03:40:25,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 167 transitions, 394 flow [2024-11-28 03:40:25,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:40:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:40:25,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1330 transitions. [2024-11-28 03:40:25,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9122085048010974 [2024-11-28 03:40:25,025 INFO L175 Difference]: Start difference. First operand has 161 places, 159 transitions, 330 flow. Second operand 9 states and 1330 transitions. [2024-11-28 03:40:25,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 167 transitions, 394 flow [2024-11-28 03:40:25,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 167 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:40:25,032 INFO L231 Difference]: Finished difference. Result has 171 places, 165 transitions, 378 flow [2024-11-28 03:40:25,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=378, PETRI_PLACES=171, PETRI_TRANSITIONS=165} [2024-11-28 03:40:25,033 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 12 predicate places. [2024-11-28 03:40:25,033 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 165 transitions, 378 flow [2024-11-28 03:40:25,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:25,035 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:25,035 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] [2024-11-28 03:40:25,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:40:25,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:40:25,236 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 03:40:25,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:25,237 INFO L85 PathProgramCache]: Analyzing trace with hash 567140060, now seen corresponding path program 2 times [2024-11-28 03:40:25,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:25,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54537289] [2024-11-28 03:40:25,238 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:40:25,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:25,284 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:40:25,284 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:26,067 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 03:40:26,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:26,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54537289] [2024-11-28 03:40:26,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54537289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:26,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:26,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:40:26,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228848997] [2024-11-28 03:40:26,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:26,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:40:26,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:26,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:40:26,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:40:26,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2024-11-28 03:40:26,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 165 transitions, 378 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 03:40:26,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:26,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2024-11-28 03:40:26,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:26,632 INFO L124 PetriNetUnfolderBase]: 150/828 cut-off events. [2024-11-28 03:40:26,632 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:40:26,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 828 events. 150/828 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4567 event pairs, 62 based on Foata normal form. 0/769 useless extension candidates. Maximal degree in co-relation 1045. Up to 240 conditions per place. [2024-11-28 03:40:26,644 INFO L140 encePairwiseOnDemand]: 151/162 looper letters, 30 selfloop transitions, 22 changer transitions 0/194 dead transitions. [2024-11-28 03:40:26,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 194 transitions, 540 flow [2024-11-28 03:40:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:40:26,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:40:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-28 03:40:26,650 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8940329218106996 [2024-11-28 03:40:26,650 INFO L175 Difference]: Start difference. First operand has 171 places, 165 transitions, 378 flow. Second operand 6 states and 869 transitions. [2024-11-28 03:40:26,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 194 transitions, 540 flow [2024-11-28 03:40:26,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 194 transitions, 534 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 03:40:26,660 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 522 flow [2024-11-28 03:40:26,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-11-28 03:40:26,661 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 21 predicate places. [2024-11-28 03:40:26,661 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 522 flow [2024-11-28 03:40:26,662 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 03:40:26,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:26,662 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] [2024-11-28 03:40:26,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:40:26,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:26,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:26,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1442662798, now seen corresponding path program 1 times [2024-11-28 03:40:26,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:26,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744665168] [2024-11-28 03:40:26,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:26,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:26,919 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 03:40:26,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:26,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744665168] [2024-11-28 03:40:26,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744665168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:40:26,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073557783] [2024-11-28 03:40:26,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:26,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:40:26,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:40:26,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:40:26,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:40:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:27,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:40:27,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:40:27,135 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 03:40:27,135 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:40:27,294 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 03:40:27,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073557783] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:40:27,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:40:27,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 03:40:27,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183922903] [2024-11-28 03:40:27,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:40:27,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:40:27,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:27,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:40:27,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:40:27,351 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-28 03:40:27,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 522 flow. Second operand has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:27,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:27,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-28 03:40:27,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:27,773 INFO L124 PetriNetUnfolderBase]: 58/571 cut-off events. [2024-11-28 03:40:27,776 INFO L125 PetriNetUnfolderBase]: For 50/53 co-relation queries the response was YES. [2024-11-28 03:40:27,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 571 events. 58/571 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2181 event pairs, 11 based on Foata normal form. 4/540 useless extension candidates. Maximal degree in co-relation 669. Up to 63 conditions per place. [2024-11-28 03:40:27,781 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 18 selfloop transitions, 21 changer transitions 0/204 dead transitions. [2024-11-28 03:40:27,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 204 transitions, 688 flow [2024-11-28 03:40:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:40:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:40:27,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3088 transitions. [2024-11-28 03:40:27,791 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9077013521457966 [2024-11-28 03:40:27,791 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 522 flow. Second operand 21 states and 3088 transitions. [2024-11-28 03:40:27,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 204 transitions, 688 flow [2024-11-28 03:40:27,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 204 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:40:27,799 INFO L231 Difference]: Finished difference. Result has 205 places, 199 transitions, 652 flow [2024-11-28 03:40:27,800 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=652, PETRI_PLACES=205, PETRI_TRANSITIONS=199} [2024-11-28 03:40:27,801 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 46 predicate places. [2024-11-28 03:40:27,801 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 199 transitions, 652 flow [2024-11-28 03:40:27,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:27,803 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:27,803 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] [2024-11-28 03:40:27,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:40:28,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:40:28,004 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:28,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:28,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2085390094, now seen corresponding path program 2 times [2024-11-28 03:40:28,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:28,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369613482] [2024-11-28 03:40:28,006 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:40:28,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:28,046 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:40:28,046 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:28,540 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 03:40:28,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:28,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369613482] [2024-11-28 03:40:28,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369613482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:28,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:28,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:40:28,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578287945] [2024-11-28 03:40:28,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:28,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:40:28,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:28,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:40:28,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:40:28,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2024-11-28 03:40:28,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 199 transitions, 652 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 03:40:28,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:28,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2024-11-28 03:40:28,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:29,100 INFO L124 PetriNetUnfolderBase]: 206/1098 cut-off events. [2024-11-28 03:40:29,100 INFO L125 PetriNetUnfolderBase]: For 224/244 co-relation queries the response was YES. [2024-11-28 03:40:29,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1886 conditions, 1098 events. 206/1098 cut-off events. For 224/244 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6594 event pairs, 62 based on Foata normal form. 5/1041 useless extension candidates. Maximal degree in co-relation 1691. Up to 330 conditions per place. [2024-11-28 03:40:29,110 INFO L140 encePairwiseOnDemand]: 151/162 looper letters, 47 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2024-11-28 03:40:29,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 236 transitions, 922 flow [2024-11-28 03:40:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:40:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:40:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-28 03:40:29,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8940329218106996 [2024-11-28 03:40:29,115 INFO L175 Difference]: Start difference. First operand has 205 places, 199 transitions, 652 flow. Second operand 6 states and 869 transitions. [2024-11-28 03:40:29,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 236 transitions, 922 flow [2024-11-28 03:40:29,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 236 transitions, 898 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-28 03:40:29,125 INFO L231 Difference]: Finished difference. Result has 209 places, 228 transitions, 878 flow [2024-11-28 03:40:29,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=209, PETRI_TRANSITIONS=228} [2024-11-28 03:40:29,128 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 50 predicate places. [2024-11-28 03:40:29,128 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 228 transitions, 878 flow [2024-11-28 03:40:29,129 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 03:40:29,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:29,129 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] [2024-11-28 03:40:29,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:40:29,129 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:29,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:29,131 INFO L85 PathProgramCache]: Analyzing trace with hash -5601197, now seen corresponding path program 1 times [2024-11-28 03:40:29,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:29,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388245587] [2024-11-28 03:40:29,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:29,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:29,612 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 03:40:29,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:29,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388245587] [2024-11-28 03:40:29,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388245587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:40:29,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253167548] [2024-11-28 03:40:29,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:29,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:40:29,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:40:29,615 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:40:29,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:40:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:29,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:40:29,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:40:29,886 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 03:40:29,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:40:30,182 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 03:40:30,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253167548] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:40:30,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:40:30,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 03:40:30,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357225044] [2024-11-28 03:40:30,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:40:30,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:40:30,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:30,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:40:30,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:40:30,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-28 03:40:30,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 228 transitions, 878 flow. Second operand has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:30,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:30,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-28 03:40:30,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:30,831 INFO L124 PetriNetUnfolderBase]: 114/841 cut-off events. [2024-11-28 03:40:30,831 INFO L125 PetriNetUnfolderBase]: For 345/358 co-relation queries the response was YES. [2024-11-28 03:40:30,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 841 events. 114/841 cut-off events. For 345/358 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4326 event pairs, 14 based on Foata normal form. 8/811 useless extension candidates. Maximal degree in co-relation 1300. Up to 84 conditions per place. [2024-11-28 03:40:30,838 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 21 selfloop transitions, 30 changer transitions 0/245 dead transitions. [2024-11-28 03:40:30,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 245 transitions, 1102 flow [2024-11-28 03:40:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:40:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 03:40:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4404 transitions. [2024-11-28 03:40:30,865 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2024-11-28 03:40:30,865 INFO L175 Difference]: Start difference. First operand has 209 places, 228 transitions, 878 flow. Second operand 30 states and 4404 transitions. [2024-11-28 03:40:30,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 245 transitions, 1102 flow [2024-11-28 03:40:30,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 245 transitions, 1102 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:40:30,874 INFO L231 Difference]: Finished difference. Result has 242 places, 238 transitions, 1030 flow [2024-11-28 03:40:30,875 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1030, PETRI_PLACES=242, PETRI_TRANSITIONS=238} [2024-11-28 03:40:30,875 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 83 predicate places. [2024-11-28 03:40:30,875 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 238 transitions, 1030 flow [2024-11-28 03:40:30,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:30,877 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:30,878 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] [2024-11-28 03:40:30,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:40:31,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 03:40:31,082 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:31,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:31,083 INFO L85 PathProgramCache]: Analyzing trace with hash -965546795, now seen corresponding path program 2 times [2024-11-28 03:40:31,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:31,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887396390] [2024-11-28 03:40:31,083 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:40:31,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:31,125 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:40:31,126 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:31,619 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 03:40:31,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:31,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887396390] [2024-11-28 03:40:31,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887396390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:31,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:31,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:40:31,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105111758] [2024-11-28 03:40:31,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:31,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:40:31,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:31,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:40:31,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:40:31,748 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2024-11-28 03:40:31,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 238 transitions, 1030 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 03:40:31,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:31,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2024-11-28 03:40:31,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:32,286 INFO L124 PetriNetUnfolderBase]: 422/1653 cut-off events. [2024-11-28 03:40:32,286 INFO L125 PetriNetUnfolderBase]: For 1006/1048 co-relation queries the response was YES. [2024-11-28 03:40:32,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3663 conditions, 1653 events. 422/1653 cut-off events. For 1006/1048 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10487 event pairs, 107 based on Foata normal form. 12/1574 useless extension candidates. Maximal degree in co-relation 3386. Up to 718 conditions per place. [2024-11-28 03:40:32,296 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 76 selfloop transitions, 57 changer transitions 0/293 dead transitions. [2024-11-28 03:40:32,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 293 transitions, 1540 flow [2024-11-28 03:40:32,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:40:32,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:40:32,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2024-11-28 03:40:32,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-28 03:40:32,299 INFO L175 Difference]: Start difference. First operand has 242 places, 238 transitions, 1030 flow. Second operand 6 states and 855 transitions. [2024-11-28 03:40:32,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 293 transitions, 1540 flow [2024-11-28 03:40:32,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 293 transitions, 1494 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-28 03:40:32,311 INFO L231 Difference]: Finished difference. Result has 234 places, 285 transitions, 1482 flow [2024-11-28 03:40:32,312 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1482, PETRI_PLACES=234, PETRI_TRANSITIONS=285} [2024-11-28 03:40:32,312 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 75 predicate places. [2024-11-28 03:40:32,312 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 285 transitions, 1482 flow [2024-11-28 03:40:32,313 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 03:40:32,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:32,313 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] [2024-11-28 03:40:32,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:40:32,314 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 03:40:32,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:32,315 INFO L85 PathProgramCache]: Analyzing trace with hash -639359751, now seen corresponding path program 1 times [2024-11-28 03:40:32,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:32,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289123152] [2024-11-28 03:40:32,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:32,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:32,995 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 03:40:32,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:32,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289123152] [2024-11-28 03:40:32,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289123152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:32,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:32,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:40:32,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090176453] [2024-11-28 03:40:32,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:32,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:40:32,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:32,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:40:32,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:40:33,154 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2024-11-28 03:40:33,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 285 transitions, 1482 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 03:40:33,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:33,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2024-11-28 03:40:33,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:33,803 INFO L124 PetriNetUnfolderBase]: 542/2093 cut-off events. [2024-11-28 03:40:33,803 INFO L125 PetriNetUnfolderBase]: For 2322/2378 co-relation queries the response was YES. [2024-11-28 03:40:33,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5260 conditions, 2093 events. 542/2093 cut-off events. For 2322/2378 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 14588 event pairs, 113 based on Foata normal form. 13/2020 useless extension candidates. Maximal degree in co-relation 5000. Up to 894 conditions per place. [2024-11-28 03:40:33,818 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 113 selfloop transitions, 71 changer transitions 0/346 dead transitions. [2024-11-28 03:40:33,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 346 transitions, 2204 flow [2024-11-28 03:40:33,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:40:33,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:40:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2024-11-28 03:40:33,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-28 03:40:33,821 INFO L175 Difference]: Start difference. First operand has 234 places, 285 transitions, 1482 flow. Second operand 6 states and 855 transitions. [2024-11-28 03:40:33,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 346 transitions, 2204 flow [2024-11-28 03:40:33,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 346 transitions, 2140 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-28 03:40:33,843 INFO L231 Difference]: Finished difference. Result has 244 places, 338 transitions, 2094 flow [2024-11-28 03:40:33,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1424, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2094, PETRI_PLACES=244, PETRI_TRANSITIONS=338} [2024-11-28 03:40:33,844 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 85 predicate places. [2024-11-28 03:40:33,844 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 338 transitions, 2094 flow [2024-11-28 03:40:33,845 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 03:40:33,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:33,845 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] [2024-11-28 03:40:33,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:40:33,845 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:33,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:33,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1083564085, now seen corresponding path program 1 times [2024-11-28 03:40:33,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:33,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280455739] [2024-11-28 03:40:33,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:33,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:34,606 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 03:40:34,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:34,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280455739] [2024-11-28 03:40:34,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280455739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:34,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:34,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:40:34,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588010566] [2024-11-28 03:40:34,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:34,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:40:34,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:34,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:40:34,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:40:36,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:40:36,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 338 transitions, 2094 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:36,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:36,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:40:36,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:37,552 INFO L124 PetriNetUnfolderBase]: 1062/4156 cut-off events. [2024-11-28 03:40:37,552 INFO L125 PetriNetUnfolderBase]: For 5455/5583 co-relation queries the response was YES. [2024-11-28 03:40:37,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11496 conditions, 4156 events. 1062/4156 cut-off events. For 5455/5583 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 33071 event pairs, 151 based on Foata normal form. 45/4178 useless extension candidates. Maximal degree in co-relation 11219. Up to 580 conditions per place. [2024-11-28 03:40:37,595 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 68 selfloop transitions, 15 changer transitions 3/397 dead transitions. [2024-11-28 03:40:37,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 397 transitions, 2384 flow [2024-11-28 03:40:37,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:40:37,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:40:37,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1277 transitions. [2024-11-28 03:40:37,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8758573388203018 [2024-11-28 03:40:37,599 INFO L175 Difference]: Start difference. First operand has 244 places, 338 transitions, 2094 flow. Second operand 9 states and 1277 transitions. [2024-11-28 03:40:37,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 397 transitions, 2384 flow [2024-11-28 03:40:37,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 397 transitions, 2302 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-28 03:40:37,660 INFO L231 Difference]: Finished difference. Result has 259 places, 353 transitions, 2130 flow [2024-11-28 03:40:37,661 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2012, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2130, PETRI_PLACES=259, PETRI_TRANSITIONS=353} [2024-11-28 03:40:37,662 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 100 predicate places. [2024-11-28 03:40:37,662 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 353 transitions, 2130 flow [2024-11-28 03:40:37,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:37,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:37,664 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] [2024-11-28 03:40:37,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:40:37,664 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:37,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:37,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1950636613, now seen corresponding path program 2 times [2024-11-28 03:40:37,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:37,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142749656] [2024-11-28 03:40:37,666 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:40:37,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:37,711 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:40:37,711 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:38,265 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 03:40:38,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:38,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142749656] [2024-11-28 03:40:38,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142749656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:38,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:38,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:40:38,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014337765] [2024-11-28 03:40:38,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:38,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:40:38,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:38,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:40:38,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:40:39,802 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:40:39,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 353 transitions, 2130 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:39,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:39,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:40:39,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:41,855 INFO L124 PetriNetUnfolderBase]: 2043/7618 cut-off events. [2024-11-28 03:40:41,855 INFO L125 PetriNetUnfolderBase]: For 10714/10976 co-relation queries the response was YES. [2024-11-28 03:40:41,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22390 conditions, 7618 events. 2043/7618 cut-off events. For 10714/10976 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 68399 event pairs, 280 based on Foata normal form. 85/7653 useless extension candidates. Maximal degree in co-relation 22105. Up to 1204 conditions per place. [2024-11-28 03:40:41,926 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 107 selfloop transitions, 20 changer transitions 6/444 dead transitions. [2024-11-28 03:40:41,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 444 transitions, 2796 flow [2024-11-28 03:40:41,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:40:41,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:40:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1276 transitions. [2024-11-28 03:40:41,930 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8751714677640604 [2024-11-28 03:40:41,930 INFO L175 Difference]: Start difference. First operand has 259 places, 353 transitions, 2130 flow. Second operand 9 states and 1276 transitions. [2024-11-28 03:40:41,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 444 transitions, 2796 flow [2024-11-28 03:40:42,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 444 transitions, 2796 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:40:42,016 INFO L231 Difference]: Finished difference. Result has 274 places, 370 transitions, 2310 flow [2024-11-28 03:40:42,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2310, PETRI_PLACES=274, PETRI_TRANSITIONS=370} [2024-11-28 03:40:42,017 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 115 predicate places. [2024-11-28 03:40:42,017 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 370 transitions, 2310 flow [2024-11-28 03:40:42,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:42,018 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:42,018 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] [2024-11-28 03:40:42,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:40:42,018 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:42,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:42,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2146251145, now seen corresponding path program 3 times [2024-11-28 03:40:42,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:42,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131948553] [2024-11-28 03:40:42,020 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:40:42,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:42,069 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:40:42,069 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:42,675 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 03:40:42,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:42,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131948553] [2024-11-28 03:40:42,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131948553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:42,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:42,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:40:42,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875347689] [2024-11-28 03:40:42,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:42,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:40:42,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:42,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:40:42,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:40:44,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:40:44,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 370 transitions, 2310 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:44,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:44,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:40:44,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:46,470 INFO L124 PetriNetUnfolderBase]: 2340/8659 cut-off events. [2024-11-28 03:40:46,470 INFO L125 PetriNetUnfolderBase]: For 14393/14790 co-relation queries the response was YES. [2024-11-28 03:40:46,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26794 conditions, 8659 events. 2340/8659 cut-off events. For 14393/14790 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 79051 event pairs, 290 based on Foata normal form. 94/8697 useless extension candidates. Maximal degree in co-relation 26501. Up to 1318 conditions per place. [2024-11-28 03:40:46,530 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 119 selfloop transitions, 22 changer transitions 2/454 dead transitions. [2024-11-28 03:40:46,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 454 transitions, 3094 flow [2024-11-28 03:40:46,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:40:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:40:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1281 transitions. [2024-11-28 03:40:46,533 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8786008230452675 [2024-11-28 03:40:46,534 INFO L175 Difference]: Start difference. First operand has 274 places, 370 transitions, 2310 flow. Second operand 9 states and 1281 transitions. [2024-11-28 03:40:46,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 454 transitions, 3094 flow [2024-11-28 03:40:46,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 454 transitions, 3056 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-28 03:40:46,648 INFO L231 Difference]: Finished difference. Result has 287 places, 382 transitions, 2479 flow [2024-11-28 03:40:46,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2296, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2479, PETRI_PLACES=287, PETRI_TRANSITIONS=382} [2024-11-28 03:40:46,649 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 128 predicate places. [2024-11-28 03:40:46,649 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 382 transitions, 2479 flow [2024-11-28 03:40:46,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:46,650 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:46,650 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] [2024-11-28 03:40:46,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:40:46,651 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:46,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1879454553, now seen corresponding path program 4 times [2024-11-28 03:40:46,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:46,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313975395] [2024-11-28 03:40:46,652 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:40:46,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:46,712 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:40:46,712 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:48,177 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 03:40:48,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:48,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313975395] [2024-11-28 03:40:48,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313975395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:48,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:48,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:40:48,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339164916] [2024-11-28 03:40:48,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:48,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:40:48,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:48,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:40:48,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:40:49,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:40:49,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 382 transitions, 2479 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:49,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:49,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:40:49,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:51,823 INFO L124 PetriNetUnfolderBase]: 2637/9697 cut-off events. [2024-11-28 03:40:51,823 INFO L125 PetriNetUnfolderBase]: For 18127/18530 co-relation queries the response was YES. [2024-11-28 03:40:51,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30686 conditions, 9697 events. 2637/9697 cut-off events. For 18127/18530 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 90742 event pairs, 301 based on Foata normal form. 107/9743 useless extension candidates. Maximal degree in co-relation 30387. Up to 1587 conditions per place. [2024-11-28 03:40:51,885 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 129 selfloop transitions, 28 changer transitions 4/472 dead transitions. [2024-11-28 03:40:51,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 472 transitions, 3428 flow [2024-11-28 03:40:51,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:40:51,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:40:51,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1413 transitions. [2024-11-28 03:40:51,888 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8722222222222222 [2024-11-28 03:40:51,888 INFO L175 Difference]: Start difference. First operand has 287 places, 382 transitions, 2479 flow. Second operand 10 states and 1413 transitions. [2024-11-28 03:40:51,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 472 transitions, 3428 flow [2024-11-28 03:40:51,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 472 transitions, 3349 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-28 03:40:52,003 INFO L231 Difference]: Finished difference. Result has 298 places, 394 transitions, 2657 flow [2024-11-28 03:40:52,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2657, PETRI_PLACES=298, PETRI_TRANSITIONS=394} [2024-11-28 03:40:52,005 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 139 predicate places. [2024-11-28 03:40:52,005 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 394 transitions, 2657 flow [2024-11-28 03:40:52,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:52,006 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:52,006 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] [2024-11-28 03:40:52,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:40:52,007 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:52,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:52,009 INFO L85 PathProgramCache]: Analyzing trace with hash -2113396073, now seen corresponding path program 5 times [2024-11-28 03:40:52,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:52,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632992356] [2024-11-28 03:40:52,009 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:40:52,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:52,054 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:40:52,054 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-28 03:40:53,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:53,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632992356] [2024-11-28 03:40:53,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632992356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:40:53,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931674160] [2024-11-28 03:40:53,172 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:40:53,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:40:53,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:40:53,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:40:53,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:40:53,366 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:40:53,367 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:53,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 03:40:53,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:40:53,781 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 03:40:53,944 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 03:40:53,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:40:53,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931674160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:53,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:40:53,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-28 03:40:53,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531736699] [2024-11-28 03:40:53,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:53,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:40:53,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:53,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:40:53,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:40:55,629 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:40:55,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 394 transitions, 2657 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:55,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:40:55,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:40:55,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:40:58,079 INFO L124 PetriNetUnfolderBase]: 2967/10865 cut-off events. [2024-11-28 03:40:58,080 INFO L125 PetriNetUnfolderBase]: For 23066/23580 co-relation queries the response was YES. [2024-11-28 03:40:58,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35185 conditions, 10865 events. 2967/10865 cut-off events. For 23066/23580 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 104137 event pairs, 311 based on Foata normal form. 100/10888 useless extension candidates. Maximal degree in co-relation 34880. Up to 1711 conditions per place. [2024-11-28 03:40:58,162 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 133 selfloop transitions, 30 changer transitions 1/475 dead transitions. [2024-11-28 03:40:58,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 475 transitions, 3636 flow [2024-11-28 03:40:58,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:40:58,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:40:58,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1416 transitions. [2024-11-28 03:40:58,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8740740740740741 [2024-11-28 03:40:58,164 INFO L175 Difference]: Start difference. First operand has 298 places, 394 transitions, 2657 flow. Second operand 10 states and 1416 transitions. [2024-11-28 03:40:58,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 475 transitions, 3636 flow [2024-11-28 03:40:58,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 475 transitions, 3543 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-28 03:40:58,318 INFO L231 Difference]: Finished difference. Result has 309 places, 409 transitions, 2895 flow [2024-11-28 03:40:58,319 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2614, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2895, PETRI_PLACES=309, PETRI_TRANSITIONS=409} [2024-11-28 03:40:58,321 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 150 predicate places. [2024-11-28 03:40:58,322 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 409 transitions, 2895 flow [2024-11-28 03:40:58,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:40:58,323 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:40:58,323 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] [2024-11-28 03:40:58,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:40:58,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:40:58,528 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:40:58,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:58,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1298428853, now seen corresponding path program 6 times [2024-11-28 03:40:58,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:40:58,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510443878] [2024-11-28 03:40:58,529 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:40:58,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:58,559 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 03:40:58,559 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:40:59,012 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 03:40:59,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:59,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510443878] [2024-11-28 03:40:59,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510443878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:59,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:59,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:40:59,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432532251] [2024-11-28 03:40:59,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:59,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:40:59,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:40:59,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:40:59,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:00,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:41:00,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 409 transitions, 2895 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:00,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:41:00,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:41:00,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:41:02,960 INFO L124 PetriNetUnfolderBase]: 3289/12025 cut-off events. [2024-11-28 03:41:02,960 INFO L125 PetriNetUnfolderBase]: For 29081/29617 co-relation queries the response was YES. [2024-11-28 03:41:03,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39762 conditions, 12025 events. 3289/12025 cut-off events. For 29081/29617 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 118377 event pairs, 341 based on Foata normal form. 108/12051 useless extension candidates. Maximal degree in co-relation 39451. Up to 1968 conditions per place. [2024-11-28 03:41:03,081 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 148 selfloop transitions, 34 changer transitions 2/495 dead transitions. [2024-11-28 03:41:03,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 495 transitions, 4019 flow [2024-11-28 03:41:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:03,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:41:03,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1284 transitions. [2024-11-28 03:41:03,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8806584362139918 [2024-11-28 03:41:03,084 INFO L175 Difference]: Start difference. First operand has 309 places, 409 transitions, 2895 flow. Second operand 9 states and 1284 transitions. [2024-11-28 03:41:03,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 495 transitions, 4019 flow [2024-11-28 03:41:03,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 495 transitions, 3921 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-11-28 03:41:03,256 INFO L231 Difference]: Finished difference. Result has 320 places, 424 transitions, 3136 flow [2024-11-28 03:41:03,257 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2834, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3136, PETRI_PLACES=320, PETRI_TRANSITIONS=424} [2024-11-28 03:41:03,257 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 161 predicate places. [2024-11-28 03:41:03,257 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 424 transitions, 3136 flow [2024-11-28 03:41:03,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:03,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:41:03,258 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] [2024-11-28 03:41:03,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:41:03,260 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 03:41:03,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:03,262 INFO L85 PathProgramCache]: Analyzing trace with hash 7704669, now seen corresponding path program 7 times [2024-11-28 03:41:03,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:03,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053791257] [2024-11-28 03:41:03,263 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:41:03,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:03,935 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 03:41:03,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:03,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053791257] [2024-11-28 03:41:03,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053791257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:03,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:03,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:41:03,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151582716] [2024-11-28 03:41:03,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:03,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:41:03,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:03,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:41:03,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:05,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:41:05,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 424 transitions, 3136 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:05,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:41:05,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:41:05,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:41:08,293 INFO L124 PetriNetUnfolderBase]: 3632/13220 cut-off events. [2024-11-28 03:41:08,293 INFO L125 PetriNetUnfolderBase]: For 37344/37939 co-relation queries the response was YES. [2024-11-28 03:41:08,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44926 conditions, 13220 events. 3632/13220 cut-off events. For 37344/37939 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 132999 event pairs, 424 based on Foata normal form. 95/13211 useless extension candidates. Maximal degree in co-relation 44610. Up to 2114 conditions per place. [2024-11-28 03:41:08,408 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 148 selfloop transitions, 36 changer transitions 0/495 dead transitions. [2024-11-28 03:41:08,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 495 transitions, 4233 flow [2024-11-28 03:41:08,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:41:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1286 transitions. [2024-11-28 03:41:08,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8820301783264746 [2024-11-28 03:41:08,410 INFO L175 Difference]: Start difference. First operand has 320 places, 424 transitions, 3136 flow. Second operand 9 states and 1286 transitions. [2024-11-28 03:41:08,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 495 transitions, 4233 flow [2024-11-28 03:41:08,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 495 transitions, 4133 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-28 03:41:08,657 INFO L231 Difference]: Finished difference. Result has 333 places, 443 transitions, 3486 flow [2024-11-28 03:41:08,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3058, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3486, PETRI_PLACES=333, PETRI_TRANSITIONS=443} [2024-11-28 03:41:08,658 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 174 predicate places. [2024-11-28 03:41:08,658 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 443 transitions, 3486 flow [2024-11-28 03:41:08,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:08,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:41:08,659 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] [2024-11-28 03:41:08,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:41:08,659 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:41:08,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:08,661 INFO L85 PathProgramCache]: Analyzing trace with hash 895874245, now seen corresponding path program 8 times [2024-11-28 03:41:08,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:08,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745680339] [2024-11-28 03:41:08,661 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:41:08,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:08,693 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:41:08,693 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:41:09,109 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 03:41:09,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745680339] [2024-11-28 03:41:09,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745680339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:09,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:09,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:41:09,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394541448] [2024-11-28 03:41:09,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:09,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:41:09,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:09,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:41:09,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:09,817 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:41:09,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 443 transitions, 3486 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:09,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:41:09,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:41:09,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:41:13,122 INFO L124 PetriNetUnfolderBase]: 4229/15233 cut-off events. [2024-11-28 03:41:13,122 INFO L125 PetriNetUnfolderBase]: For 48249/49015 co-relation queries the response was YES. [2024-11-28 03:41:13,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52773 conditions, 15233 events. 4229/15233 cut-off events. For 48249/49015 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 159086 event pairs, 429 based on Foata normal form. 125/15248 useless extension candidates. Maximal degree in co-relation 52450. Up to 2514 conditions per place. [2024-11-28 03:41:13,246 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 169 selfloop transitions, 45 changer transitions 0/525 dead transitions. [2024-11-28 03:41:13,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 525 transitions, 4789 flow [2024-11-28 03:41:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:41:13,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-28 03:41:13,248 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-28 03:41:13,248 INFO L175 Difference]: Start difference. First operand has 333 places, 443 transitions, 3486 flow. Second operand 9 states and 1288 transitions. [2024-11-28 03:41:13,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 525 transitions, 4789 flow [2024-11-28 03:41:13,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 525 transitions, 4685 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-28 03:41:13,465 INFO L231 Difference]: Finished difference. Result has 348 places, 461 transitions, 3838 flow [2024-11-28 03:41:13,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3382, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3838, PETRI_PLACES=348, PETRI_TRANSITIONS=461} [2024-11-28 03:41:13,466 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 189 predicate places. [2024-11-28 03:41:13,466 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 461 transitions, 3838 flow [2024-11-28 03:41:13,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:13,467 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:41:13,467 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] [2024-11-28 03:41:13,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:41:13,467 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:41:13,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:13,468 INFO L85 PathProgramCache]: Analyzing trace with hash -483502385, now seen corresponding path program 9 times [2024-11-28 03:41:13,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:13,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375680565] [2024-11-28 03:41:13,469 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:41:13,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:13,487 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:41:13,487 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:41:13,746 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 03:41:13,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:13,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375680565] [2024-11-28 03:41:13,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375680565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:13,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:13,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:41:13,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922076367] [2024-11-28 03:41:13,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:13,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:41:13,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:13,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:41:13,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:15,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:41:15,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 461 transitions, 3838 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:15,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:41:15,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:41:15,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:41:18,883 INFO L124 PetriNetUnfolderBase]: 4227/15200 cut-off events. [2024-11-28 03:41:18,883 INFO L125 PetriNetUnfolderBase]: For 53771/54593 co-relation queries the response was YES. [2024-11-28 03:41:18,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53717 conditions, 15200 events. 4227/15200 cut-off events. For 53771/54593 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 158712 event pairs, 383 based on Foata normal form. 211/15318 useless extension candidates. Maximal degree in co-relation 53386. Up to 2450 conditions per place. [2024-11-28 03:41:19,020 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 181 selfloop transitions, 58 changer transitions 2/552 dead transitions. [2024-11-28 03:41:19,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 552 transitions, 5160 flow [2024-11-28 03:41:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:41:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1279 transitions. [2024-11-28 03:41:19,022 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8772290809327846 [2024-11-28 03:41:19,022 INFO L175 Difference]: Start difference. First operand has 348 places, 461 transitions, 3838 flow. Second operand 9 states and 1279 transitions. [2024-11-28 03:41:19,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 552 transitions, 5160 flow [2024-11-28 03:41:19,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 552 transitions, 5072 flow, removed 44 selfloop flow, removed 0 redundant places. [2024-11-28 03:41:19,473 INFO L231 Difference]: Finished difference. Result has 360 places, 473 transitions, 4078 flow [2024-11-28 03:41:19,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3752, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4078, PETRI_PLACES=360, PETRI_TRANSITIONS=473} [2024-11-28 03:41:19,474 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 201 predicate places. [2024-11-28 03:41:19,474 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 473 transitions, 4078 flow [2024-11-28 03:41:19,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:19,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:41:19,475 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] [2024-11-28 03:41:19,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:41:19,475 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:41:19,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1817050895, now seen corresponding path program 10 times [2024-11-28 03:41:19,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:19,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753593305] [2024-11-28 03:41:19,476 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:41:19,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:19,519 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:41:19,519 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:41:20,229 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 03:41:20,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753593305] [2024-11-28 03:41:20,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753593305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:20,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:20,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:41:20,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028551548] [2024-11-28 03:41:20,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:20,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:41:20,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:20,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:41:20,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:41:21,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:41:21,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 473 transitions, 4078 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:21,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:41:21,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:41:21,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:41:25,449 INFO L124 PetriNetUnfolderBase]: 3949/14388 cut-off events. [2024-11-28 03:41:25,450 INFO L125 PetriNetUnfolderBase]: For 55569/56374 co-relation queries the response was YES. [2024-11-28 03:41:25,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51617 conditions, 14388 events. 3949/14388 cut-off events. For 55569/56374 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 148258 event pairs, 366 based on Foata normal form. 193/14490 useless extension candidates. Maximal degree in co-relation 51281. Up to 2286 conditions per place. [2024-11-28 03:41:25,585 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 181 selfloop transitions, 55 changer transitions 2/549 dead transitions. [2024-11-28 03:41:25,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 549 transitions, 5288 flow [2024-11-28 03:41:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:41:25,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:41:25,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1409 transitions. [2024-11-28 03:41:25,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8697530864197531 [2024-11-28 03:41:25,588 INFO L175 Difference]: Start difference. First operand has 360 places, 473 transitions, 4078 flow. Second operand 10 states and 1409 transitions. [2024-11-28 03:41:25,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 549 transitions, 5288 flow [2024-11-28 03:41:25,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 549 transitions, 5106 flow, removed 52 selfloop flow, removed 4 redundant places. [2024-11-28 03:41:25,869 INFO L231 Difference]: Finished difference. Result has 368 places, 476 transitions, 4112 flow [2024-11-28 03:41:25,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3908, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4112, PETRI_PLACES=368, PETRI_TRANSITIONS=476} [2024-11-28 03:41:25,870 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 209 predicate places. [2024-11-28 03:41:25,870 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 476 transitions, 4112 flow [2024-11-28 03:41:25,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:25,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:41:25,871 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] [2024-11-28 03:41:25,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:41:25,871 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:41:25,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:25,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1605301797, now seen corresponding path program 11 times [2024-11-28 03:41:25,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:25,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215133987] [2024-11-28 03:41:25,872 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:41:25,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:25,908 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:41:25,908 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:41:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-28 03:41:26,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:26,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215133987] [2024-11-28 03:41:26,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215133987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:41:26,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958355243] [2024-11-28 03:41:26,876 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:41:26,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:41:26,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:41:26,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:41:26,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:41:27,071 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:41:27,071 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:41:27,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:41:27,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:41:27,418 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 03:41:27,466 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 03:41:27,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:41:27,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958355243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:27,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:41:27,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-28 03:41:27,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432997371] [2024-11-28 03:41:27,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:27,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:41:27,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:27,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:41:27,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:41:28,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:41:28,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 476 transitions, 4112 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:28,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:41:28,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:41:28,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:41:31,958 INFO L124 PetriNetUnfolderBase]: 3954/14451 cut-off events. [2024-11-28 03:41:31,958 INFO L125 PetriNetUnfolderBase]: For 53411/54136 co-relation queries the response was YES. [2024-11-28 03:41:32,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51633 conditions, 14451 events. 3954/14451 cut-off events. For 53411/54136 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 149125 event pairs, 379 based on Foata normal form. 163/14519 useless extension candidates. Maximal degree in co-relation 51293. Up to 2318 conditions per place. [2024-11-28 03:41:32,097 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 176 selfloop transitions, 61 changer transitions 1/549 dead transitions. [2024-11-28 03:41:32,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 549 transitions, 5272 flow [2024-11-28 03:41:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:41:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:41:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1412 transitions. [2024-11-28 03:41:32,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8716049382716049 [2024-11-28 03:41:32,099 INFO L175 Difference]: Start difference. First operand has 368 places, 476 transitions, 4112 flow. Second operand 10 states and 1412 transitions. [2024-11-28 03:41:32,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 549 transitions, 5272 flow [2024-11-28 03:41:32,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 549 transitions, 5154 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-28 03:41:32,350 INFO L231 Difference]: Finished difference. Result has 376 places, 487 transitions, 4364 flow [2024-11-28 03:41:32,350 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4012, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4364, PETRI_PLACES=376, PETRI_TRANSITIONS=487} [2024-11-28 03:41:32,351 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 217 predicate places. [2024-11-28 03:41:32,351 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 487 transitions, 4364 flow [2024-11-28 03:41:32,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:32,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:41:32,351 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] [2024-11-28 03:41:32,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:41:32,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f38404-cc26-4711-87ff-c9de13d125c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:41:32,552 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:41:32,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:32,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1797544937, now seen corresponding path program 12 times [2024-11-28 03:41:32,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:32,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816999680] [2024-11-28 03:41:32,553 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:41:32,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:32,575 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 03:41:32,575 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:41:32,846 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 03:41:32,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:32,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816999680] [2024-11-28 03:41:32,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816999680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:32,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:32,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:41:32,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628101165] [2024-11-28 03:41:32,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:32,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:41:32,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:32,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:41:32,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:33,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:41:33,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 487 transitions, 4364 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:33,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:41:33,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:41:33,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:41:38,101 INFO L124 PetriNetUnfolderBase]: 4243/15414 cut-off events. [2024-11-28 03:41:38,101 INFO L125 PetriNetUnfolderBase]: For 60435/61204 co-relation queries the response was YES. [2024-11-28 03:41:38,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55543 conditions, 15414 events. 4243/15414 cut-off events. For 60435/61204 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 161665 event pairs, 396 based on Foata normal form. 151/15463 useless extension candidates. Maximal degree in co-relation 55198. Up to 2493 conditions per place. [2024-11-28 03:41:38,279 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 200 selfloop transitions, 49 changer transitions 1/561 dead transitions. [2024-11-28 03:41:38,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 561 transitions, 5696 flow [2024-11-28 03:41:38,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:41:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:41:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-28 03:41:38,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-28 03:41:38,281 INFO L175 Difference]: Start difference. First operand has 376 places, 487 transitions, 4364 flow. Second operand 9 states and 1288 transitions. [2024-11-28 03:41:38,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 561 transitions, 5696 flow [2024-11-28 03:41:38,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 561 transitions, 5490 flow, removed 73 selfloop flow, removed 4 redundant places. [2024-11-28 03:41:38,626 INFO L231 Difference]: Finished difference. Result has 384 places, 497 transitions, 4544 flow [2024-11-28 03:41:38,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4256, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4544, PETRI_PLACES=384, PETRI_TRANSITIONS=497} [2024-11-28 03:41:38,627 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, 225 predicate places. [2024-11-28 03:41:38,627 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 497 transitions, 4544 flow [2024-11-28 03:41:38,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:38,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:41:38,627 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] [2024-11-28 03:41:38,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:41:38,628 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 03:41:38,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:38,629 INFO L85 PathProgramCache]: Analyzing trace with hash 493945369, now seen corresponding path program 13 times [2024-11-28 03:41:38,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:41:38,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502801714] [2024-11-28 03:41:38,629 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:41:38,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:39,181 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 03:41:39,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:41:39,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502801714] [2024-11-28 03:41:39,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502801714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:39,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:39,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:41:39,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306638407] [2024-11-28 03:41:39,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:39,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:41:39,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:41:39,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:41:39,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:41:40,167 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-28 03:41:40,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 497 transitions, 4544 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:41:40,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:41:40,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-28 03:41:40,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand