./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.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_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1 --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 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:41:02,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:41:02,477 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 13:41:02,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:41:02,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:41:02,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:41:02,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:41:02,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:41:02,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:41:02,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:41:02,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:41:02,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:41:02,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:41:02,508 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:41:02,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:02,509 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:02,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:41:02,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:41:02,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:41:02,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:41:02,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:41:02,510 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_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1 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 -> 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f [2024-12-02 13:41:02,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:41:02,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:41:02,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:41:02,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:41:02,789 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:41:02,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2024-12-02 13:41:05,464 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/data/38aa6703a/24ba7b56ffb14744b4c735ccec051d79/FLAG6ff6d57af [2024-12-02 13:41:05,693 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:41:05,694 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2024-12-02 13:41:05,707 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/data/38aa6703a/24ba7b56ffb14744b4c735ccec051d79/FLAG6ff6d57af [2024-12-02 13:41:05,721 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/data/38aa6703a/24ba7b56ffb14744b4c735ccec051d79 [2024-12-02 13:41:05,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:41:05,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:41:05,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:41:05,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:41:05,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:41:05,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:41:05" (1/1) ... [2024-12-02 13:41:05,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121081b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:05, skipping insertion in model container [2024-12-02 13:41:05,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:41:05" (1/1) ... [2024-12-02 13:41:05,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:41:06,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:41:06,064 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:41:06,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:41:06,138 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:41:06,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06 WrapperNode [2024-12-02 13:41:06,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:41:06,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:41:06,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:41:06,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:41:06,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,181 INFO L138 Inliner]: procedures = 165, calls = 74, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 117 [2024-12-02 13:41:06,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:41:06,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:41:06,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:41:06,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:41:06,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:41:06,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:41:06,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:41:06,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:41:06,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (1/1) ... [2024-12-02 13:41:06,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:41:06,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:06,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:41:06,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:41:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 13:41:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 13:41:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 13:41:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:41:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 13:41:06,263 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 13:41:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 13:41:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 13:41:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:41:06,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:41:06,264 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 13:41:06,358 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:41:06,360 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:41:06,630 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 13:41:06,630 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:41:06,653 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:41:06,653 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 13:41:06,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:41:06 BoogieIcfgContainer [2024-12-02 13:41:06,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:41:06,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:41:06,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:41:06,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:41:06,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:41:05" (1/3) ... [2024-12-02 13:41:06,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752bc826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:41:06, skipping insertion in model container [2024-12-02 13:41:06,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:41:06" (2/3) ... [2024-12-02 13:41:06,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752bc826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:41:06, skipping insertion in model container [2024-12-02 13:41:06,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:41:06" (3/3) ... [2024-12-02 13:41:06,663 INFO L128 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2024-12-02 13:41:06,675 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:41:06,677 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_13-idxunknown_lock.i that has 2 procedures, 148 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-12-02 13:41:06,677 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 13:41:06,731 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 13:41:06,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 150 transitions, 304 flow [2024-12-02 13:41:06,831 INFO L124 PetriNetUnfolderBase]: 3/149 cut-off events. [2024-12-02 13:41:06,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:41:06,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 149 events. 3/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-12-02 13:41:06,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 150 transitions, 304 flow [2024-12-02 13:41:06,857 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 149 transitions, 301 flow [2024-12-02 13:41:06,865 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:41:06,877 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;@3c6f5905, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:41:06,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-12-02 13:41:06,903 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 13:41:06,903 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-12-02 13:41:06,903 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:41:06,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:41:06,904 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] [2024-12-02 13:41:06,905 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)] === [2024-12-02 13:41:06,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1028426299, now seen corresponding path program 1 times [2024-12-02 13:41:06,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:06,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683325911] [2024-12-02 13:41:06,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:06,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:07,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:07,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683325911] [2024-12-02 13:41:07,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683325911] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:07,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:07,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:41:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099893842] [2024-12-02 13:41:07,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:07,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:41:07,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:07,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:41:07,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:41:07,294 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 150 [2024-12-02 13:41:07,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 149 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2024-12-02 13:41:07,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:41:07,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 150 [2024-12-02 13:41:07,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:41:07,370 INFO L124 PetriNetUnfolderBase]: 7/232 cut-off events. [2024-12-02 13:41:07,370 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 13:41:07,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 232 events. 7/232 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 328 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 153. Up to 24 conditions per place. [2024-12-02 13:41:07,373 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 10 selfloop transitions, 2 changer transitions 1/148 dead transitions. [2024-12-02 13:41:07,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 148 transitions, 323 flow [2024-12-02 13:41:07,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:41:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:41:07,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2024-12-02 13:41:07,386 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9488888888888889 [2024-12-02 13:41:07,387 INFO L175 Difference]: Start difference. First operand has 150 places, 149 transitions, 301 flow. Second operand 3 states and 427 transitions. [2024-12-02 13:41:07,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 148 transitions, 323 flow [2024-12-02 13:41:07,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 148 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:41:07,397 INFO L231 Difference]: Finished difference. Result has 152 places, 147 transitions, 306 flow [2024-12-02 13:41:07,399 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=152, PETRI_TRANSITIONS=147} [2024-12-02 13:41:07,403 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 2 predicate places. [2024-12-02 13:41:07,403 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 147 transitions, 306 flow [2024-12-02 13:41:07,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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) [2024-12-02 13:41:07,404 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:41:07,404 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:07,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:41:07,404 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 13:41:07,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:07,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1443569882, now seen corresponding path program 1 times [2024-12-02 13:41:07,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:07,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885231118] [2024-12-02 13:41:07,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:07,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:07,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:07,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:07,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885231118] [2024-12-02 13:41:07,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885231118] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:07,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502697557] [2024-12-02 13:41:07,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:07,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:07,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:07,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:07,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:41:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:07,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:41:07,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:07,778 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:07,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:07,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502697557] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:07,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:07,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 13:41:07,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996408813] [2024-12-02 13:41:07,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:07,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:41:07,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:07,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:41:07,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:41:07,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-12-02 13:41:07,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 147 transitions, 306 flow. Second operand has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2024-12-02 13:41:07,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:41:07,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-12-02 13:41:07,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:41:08,023 INFO L124 PetriNetUnfolderBase]: 7/238 cut-off events. [2024-12-02 13:41:08,023 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 13:41:08,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 238 events. 7/238 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 328 event pairs, 6 based on Foata normal form. 2/228 useless extension candidates. Maximal degree in co-relation 200. Up to 24 conditions per place. [2024-12-02 13:41:08,025 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 14 selfloop transitions, 9 changer transitions 0/155 dead transitions. [2024-12-02 13:41:08,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 155 transitions, 370 flow [2024-12-02 13:41:08,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:41:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 13:41:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1231 transitions. [2024-12-02 13:41:08,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9118518518518518 [2024-12-02 13:41:08,030 INFO L175 Difference]: Start difference. First operand has 152 places, 147 transitions, 306 flow. Second operand 9 states and 1231 transitions. [2024-12-02 13:41:08,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 155 transitions, 370 flow [2024-12-02 13:41:08,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 155 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:41:08,034 INFO L231 Difference]: Finished difference. Result has 161 places, 153 transitions, 354 flow [2024-12-02 13:41:08,034 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=354, PETRI_PLACES=161, PETRI_TRANSITIONS=153} [2024-12-02 13:41:08,035 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 11 predicate places. [2024-12-02 13:41:08,035 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 153 transitions, 354 flow [2024-12-02 13:41:08,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2024-12-02 13:41:08,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:41:08,037 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:08,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:41:08,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:08,238 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 13:41:08,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:08,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1101221958, now seen corresponding path program 2 times [2024-12-02 13:41:08,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:08,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541446167] [2024-12-02 13:41:08,239 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:41:08,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:08,270 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:41:08,270 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:41:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 13:41:08,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:08,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541446167] [2024-12-02 13:41:08,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541446167] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:08,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:08,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:41:08,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242581984] [2024-12-02 13:41:08,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:08,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:08,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:08,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:08,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:41:09,098 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 150 [2024-12-02 13:41:09,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 153 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2024-12-02 13:41:09,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:41:09,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 150 [2024-12-02 13:41:09,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:41:09,506 INFO L124 PetriNetUnfolderBase]: 261/1018 cut-off events. [2024-12-02 13:41:09,507 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-12-02 13:41:09,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 1018 events. 261/1018 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6013 event pairs, 67 based on Foata normal form. 0/983 useless extension candidates. Maximal degree in co-relation 1507. Up to 257 conditions per place. [2024-12-02 13:41:09,514 INFO L140 encePairwiseOnDemand]: 128/150 looper letters, 88 selfloop transitions, 42 changer transitions 0/255 dead transitions. [2024-12-02 13:41:09,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 255 transitions, 818 flow [2024-12-02 13:41:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:41:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 852 transitions. [2024-12-02 13:41:09,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9466666666666667 [2024-12-02 13:41:09,517 INFO L175 Difference]: Start difference. First operand has 161 places, 153 transitions, 354 flow. Second operand 6 states and 852 transitions. [2024-12-02 13:41:09,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 255 transitions, 818 flow [2024-12-02 13:41:09,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 255 transitions, 812 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 13:41:09,524 INFO L231 Difference]: Finished difference. Result has 170 places, 199 transitions, 664 flow [2024-12-02 13:41:09,524 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=664, PETRI_PLACES=170, PETRI_TRANSITIONS=199} [2024-12-02 13:41:09,525 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 20 predicate places. [2024-12-02 13:41:09,525 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 199 transitions, 664 flow [2024-12-02 13:41:09,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2024-12-02 13:41:09,526 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:41:09,526 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:09,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:41:09,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 13:41:09,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:09,527 INFO L85 PathProgramCache]: Analyzing trace with hash -494340545, now seen corresponding path program 1 times [2024-12-02 13:41:09,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:09,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577613289] [2024-12-02 13:41:09,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:09,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:09,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:09,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577613289] [2024-12-02 13:41:09,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577613289] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:09,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788894355] [2024-12-02 13:41:09,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:09,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:09,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:09,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:09,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:41:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:09,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:41:09,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:09,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:10,039 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:10,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788894355] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:10,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:10,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-12-02 13:41:10,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857947523] [2024-12-02 13:41:10,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:10,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:41:10,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:10,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:41:10,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:41:10,080 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-12-02 13:41:10,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 199 transitions, 664 flow. Second operand has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 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) [2024-12-02 13:41:10,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:41:10,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-12-02 13:41:10,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:41:10,387 INFO L124 PetriNetUnfolderBase]: 122/788 cut-off events. [2024-12-02 13:41:10,387 INFO L125 PetriNetUnfolderBase]: For 128/141 co-relation queries the response was YES. [2024-12-02 13:41:10,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 788 events. 122/788 cut-off events. For 128/141 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4547 event pairs, 40 based on Foata normal form. 4/778 useless extension candidates. Maximal degree in co-relation 1268. Up to 125 conditions per place. [2024-12-02 13:41:10,389 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 18 selfloop transitions, 21 changer transitions 0/217 dead transitions. [2024-12-02 13:41:10,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 217 transitions, 830 flow [2024-12-02 13:41:10,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 13:41:10,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 13:41:10,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2857 transitions. [2024-12-02 13:41:10,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.906984126984127 [2024-12-02 13:41:10,394 INFO L175 Difference]: Start difference. First operand has 170 places, 199 transitions, 664 flow. Second operand 21 states and 2857 transitions. [2024-12-02 13:41:10,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 217 transitions, 830 flow [2024-12-02 13:41:10,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 217 transitions, 830 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 13:41:10,400 INFO L231 Difference]: Finished difference. Result has 195 places, 212 transitions, 794 flow [2024-12-02 13:41:10,401 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=794, PETRI_PLACES=195, PETRI_TRANSITIONS=212} [2024-12-02 13:41:10,401 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 45 predicate places. [2024-12-02 13:41:10,401 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 212 transitions, 794 flow [2024-12-02 13:41:10,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 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) [2024-12-02 13:41:10,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:41:10,403 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:10,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:41:10,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:10,603 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 13:41:10,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash -614396929, now seen corresponding path program 2 times [2024-12-02 13:41:10,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:10,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380209456] [2024-12-02 13:41:10,604 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:41:10,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:10,631 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:41:10,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:41:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 13:41:11,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380209456] [2024-12-02 13:41:11,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380209456] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:11,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:11,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:41:11,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053169780] [2024-12-02 13:41:11,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:11,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:11,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:11,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:11,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:41:11,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 150 [2024-12-02 13:41:11,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 212 transitions, 794 flow. Second operand has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2024-12-02 13:41:11,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:41:11,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 150 [2024-12-02 13:41:11,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:41:11,593 INFO L124 PetriNetUnfolderBase]: 417/1432 cut-off events. [2024-12-02 13:41:11,593 INFO L125 PetriNetUnfolderBase]: For 638/673 co-relation queries the response was YES. [2024-12-02 13:41:11,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3436 conditions, 1432 events. 417/1432 cut-off events. For 638/673 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9218 event pairs, 108 based on Foata normal form. 21/1437 useless extension candidates. Maximal degree in co-relation 3238. Up to 602 conditions per place. [2024-12-02 13:41:11,599 INFO L140 encePairwiseOnDemand]: 133/150 looper letters, 99 selfloop transitions, 53 changer transitions 6/295 dead transitions. [2024-12-02 13:41:11,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 295 transitions, 1462 flow [2024-12-02 13:41:11,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:11,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:41:11,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 812 transitions. [2024-12-02 13:41:11,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9022222222222223 [2024-12-02 13:41:11,602 INFO L175 Difference]: Start difference. First operand has 195 places, 212 transitions, 794 flow. Second operand 6 states and 812 transitions. [2024-12-02 13:41:11,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 295 transitions, 1462 flow [2024-12-02 13:41:11,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 295 transitions, 1438 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-12-02 13:41:11,609 INFO L231 Difference]: Finished difference. Result has 199 places, 263 transitions, 1276 flow [2024-12-02 13:41:11,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=199, PETRI_TRANSITIONS=263} [2024-12-02 13:41:11,610 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 49 predicate places. [2024-12-02 13:41:11,610 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 263 transitions, 1276 flow [2024-12-02 13:41:11,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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) [2024-12-02 13:41:11,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:41:11,611 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:11,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:41:11,612 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)] === [2024-12-02 13:41:11,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash -714534056, now seen corresponding path program 1 times [2024-12-02 13:41:11,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:11,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924763644] [2024-12-02 13:41:11,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:11,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:11,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924763644] [2024-12-02 13:41:11,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924763644] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:41:11,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290477686] [2024-12-02 13:41:11,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:11,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:11,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:41:11,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:41:11,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:41:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:41:12,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:41:12,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:41:12,116 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:12,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:41:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:41:12,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290477686] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:41:12,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:41:12,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-12-02 13:41:12,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423617676] [2024-12-02 13:41:12,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:41:12,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 13:41:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:12,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 13:41:12,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:41:12,370 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 150 [2024-12-02 13:41:12,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 263 transitions, 1276 flow. Second operand has 23 states, 23 states have (on average 136.08695652173913) internal successors, (3130), 23 states have internal predecessors, (3130), 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) [2024-12-02 13:41:12,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:41:12,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 150 [2024-12-02 13:41:12,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:41:12,892 INFO L124 PetriNetUnfolderBase]: 227/1138 cut-off events. [2024-12-02 13:41:12,892 INFO L125 PetriNetUnfolderBase]: For 973/1002 co-relation queries the response was YES. [2024-12-02 13:41:12,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2859 conditions, 1138 events. 227/1138 cut-off events. For 973/1002 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7349 event pairs, 39 based on Foata normal form. 7/1132 useless extension candidates. Maximal degree in co-relation 2581. Up to 212 conditions per place. [2024-12-02 13:41:12,900 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 21 selfloop transitions, 30 changer transitions 0/280 dead transitions. [2024-12-02 13:41:12,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 280 transitions, 1500 flow [2024-12-02 13:41:12,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 13:41:12,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-12-02 13:41:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4074 transitions. [2024-12-02 13:41:12,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9053333333333333 [2024-12-02 13:41:12,910 INFO L175 Difference]: Start difference. First operand has 199 places, 263 transitions, 1276 flow. Second operand 30 states and 4074 transitions. [2024-12-02 13:41:12,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 280 transitions, 1500 flow [2024-12-02 13:41:12,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 280 transitions, 1492 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-12-02 13:41:12,925 INFO L231 Difference]: Finished difference. Result has 232 places, 273 transitions, 1420 flow [2024-12-02 13:41:12,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1420, PETRI_PLACES=232, PETRI_TRANSITIONS=273} [2024-12-02 13:41:12,926 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 82 predicate places. [2024-12-02 13:41:12,926 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 273 transitions, 1420 flow [2024-12-02 13:41:12,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 136.08695652173913) internal successors, (3130), 23 states have internal predecessors, (3130), 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) [2024-12-02 13:41:12,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:41:12,928 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:41:12,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:41:13,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:41:13,129 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)] === [2024-12-02 13:41:13,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:13,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2126180813, now seen corresponding path program 2 times [2024-12-02 13:41:13,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:13,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996831206] [2024-12-02 13:41:13,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:41:13,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:13,155 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:41:13,156 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:41:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 13:41:13,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:41:13,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996831206] [2024-12-02 13:41:13,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996831206] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:41:13,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:41:13,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:41:13,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530197454] [2024-12-02 13:41:13,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:41:13,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:41:13,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:41:13,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:41:13,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:41:13,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 150 [2024-12-02 13:41:13,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 273 transitions, 1420 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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) [2024-12-02 13:41:13,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:41:13,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 150 [2024-12-02 13:41:13,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:41:13,972 INFO L124 PetriNetUnfolderBase]: 571/1827 cut-off events. [2024-12-02 13:41:13,972 INFO L125 PetriNetUnfolderBase]: For 2449/2497 co-relation queries the response was YES. [2024-12-02 13:41:13,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5547 conditions, 1827 events. 571/1827 cut-off events. For 2449/2497 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 12297 event pairs, 127 based on Foata normal form. 25/1828 useless extension candidates. Maximal degree in co-relation 5266. Up to 841 conditions per place. [2024-12-02 13:41:13,981 INFO L140 encePairwiseOnDemand]: 133/150 looper letters, 120 selfloop transitions, 58 changer transitions 39/365 dead transitions. [2024-12-02 13:41:13,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 365 transitions, 2378 flow [2024-12-02 13:41:13,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:41:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:41:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 802 transitions. [2024-12-02 13:41:13,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8911111111111111 [2024-12-02 13:41:13,985 INFO L175 Difference]: Start difference. First operand has 232 places, 273 transitions, 1420 flow. Second operand 6 states and 802 transitions. [2024-12-02 13:41:13,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 365 transitions, 2378 flow [2024-12-02 13:41:13,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 365 transitions, 2332 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-12-02 13:41:13,999 INFO L231 Difference]: Finished difference. Result has 223 places, 300 transitions, 1782 flow [2024-12-02 13:41:13,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1782, PETRI_PLACES=223, PETRI_TRANSITIONS=300} [2024-12-02 13:41:14,000 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, 73 predicate places. [2024-12-02 13:41:14,000 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 300 transitions, 1782 flow [2024-12-02 13:41:14,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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) [2024-12-02 13:41:14,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:41:14,001 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] [2024-12-02 13:41:14,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:41:14,001 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-02 13:41:14,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:41:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1296366986, now seen corresponding path program 1 times [2024-12-02 13:41:14,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:41:14,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191409783] [2024-12-02 13:41:14,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:41:14,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:41:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:41:14,041 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:41:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:41:14,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 13:41:14,095 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:41:14,096 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-12-02 13:41:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-12-02 13:41:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-12-02 13:41:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-12-02 13:41:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-12-02 13:41:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-12-02 13:41:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-12-02 13:41:14,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:41:14,098 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-12-02 13:41:14,150 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 13:41:14,150 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:41:14,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:41:14 BasicIcfg [2024-12-02 13:41:14,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:41:14,156 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:41:14,156 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:41:14,156 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:41:14,157 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:41:06" (3/4) ... [2024-12-02 13:41:14,158 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 13:41:14,205 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 15. [2024-12-02 13:41:14,250 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:41:14,250 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:41:14,250 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:41:14,251 INFO L158 Benchmark]: Toolchain (without parser) took 8526.95ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 116.1MB in the beginning and 138.9MB in the end (delta: -22.8MB). Peak memory consumption was 145.8MB. Max. memory is 16.1GB. [2024-12-02 13:41:14,251 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:41:14,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.14ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 94.4MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 13:41:14,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.38ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 92.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:41:14,252 INFO L158 Benchmark]: Boogie Preprocessor took 28.91ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 90.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:41:14,252 INFO L158 Benchmark]: RCFGBuilder took 442.40ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 70.8MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:41:14,253 INFO L158 Benchmark]: TraceAbstraction took 7499.95ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 70.2MB in the beginning and 150.7MB in the end (delta: -80.5MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. [2024-12-02 13:41:14,253 INFO L158 Benchmark]: Witness Printer took 94.23ms. Allocated memory is still 310.4MB. Free memory was 150.7MB in the beginning and 138.9MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:41:14,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.14ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 94.4MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.38ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 92.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.91ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 90.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 442.40ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 70.8MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7499.95ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 70.2MB in the beginning and 150.7MB in the end (delta: -80.5MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. * Witness Printer took 94.23ms. Allocated memory is still 310.4MB. Free memory was 150.7MB in the beginning and 138.9MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; VAL [data={1:0}] [L685] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L693] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L693] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L693] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L693] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L695] 0 int i = __VERIFIER_nondet_int(); VAL [data={1:0}, i=0, m={2:0}] [L696] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}, m={2:0}] [L696] RET 0 assume_abort_if_not(0 <= i && i < 10) [L697] 0 pthread_t id; VAL [data={1:0}, i=0, m={2:0}] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] EXPR 1 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] EXPR 0 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] [L688] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L700] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, i=0, id=-1, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [688] and C: data[4]++ [700] - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 176 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.3s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 503 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 366 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1294 IncrementalHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 52 mSDtfsCounter, 1294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 794 GetRequests, 691 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1782occurred in iteration=7, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1370 NumberOfCodeBlocks, 1270 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1555 ConstructedInterpolants, 0 QuantifiedInterpolants, 2172 SizeOfPredicates, 22 NumberOfNonLiveVariables, 794 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 365/758 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-12-02 13:41:14,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c888f902-a9f8-4aa6-b31e-b4a9822a9222/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)