./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.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_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/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_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/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_1a20a4df-0285-4b8f-94ab-373ed195bdc1/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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:18:49,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:18:49,368 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 07:18:49,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:18:49,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:18:49,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:18:49,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:18:49,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:18:49,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:18:49,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:18:49,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:18:49,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:18:49,395 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:18:49,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:18:49,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:18:49,395 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:18:49,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:18:49,395 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:18:49,396 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:18:49,397 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:18:49,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:18:49,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:18:49,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:18:49,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:18:49,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:18:49,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:18:49,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:18:49,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:18:49,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:18:49,398 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:18:49,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:18:49,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:18:49,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:18:49,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:18:49,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:18:49,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:18:49,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:18:49,398 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_1a20a4df-0285-4b8f-94ab-373ed195bdc1/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 -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-12-02 07:18:49,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:18:49,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:18:49,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:18:49,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:18:49,659 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:18:49,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-12-02 07:18:52,320 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/data/caadac610/f35df59261ed4e79af9dd54e0fb6458d/FLAG05594ee06 [2024-12-02 07:18:52,579 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:18:52,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-12-02 07:18:52,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/data/caadac610/f35df59261ed4e79af9dd54e0fb6458d/FLAG05594ee06 [2024-12-02 07:18:52,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/data/caadac610/f35df59261ed4e79af9dd54e0fb6458d [2024-12-02 07:18:52,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:18:52,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:18:52,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:18:52,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:18:52,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:18:52,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:18:52" (1/1) ... [2024-12-02 07:18:52,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713b46fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:52, skipping insertion in model container [2024-12-02 07:18:52,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:18:52" (1/1) ... [2024-12-02 07:18:52,936 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:18:53,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:18:53,256 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:18:53,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:18:53,340 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:18:53,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53 WrapperNode [2024-12-02 07:18:53,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:18:53,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:18:53,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:18:53,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:18:53,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,381 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 176 [2024-12-02 07:18:53,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:18:53,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:18:53,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:18:53,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:18:53,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,404 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,414 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:18:53,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:18:53,415 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:18:53,415 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:18:53,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (1/1) ... [2024-12-02 07:18:53,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:18:53,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:53,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:18:53,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:18:53,464 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 07:18:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 07:18:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 07:18:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 07:18:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:18:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 07:18:53,465 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 07:18:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 07:18:53,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:18:53,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:18:53,466 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 07:18:53,573 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:18:53,575 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:18:53,872 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:18:53,872 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:18:53,896 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:18:53,896 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 07:18:53,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:18:53 BoogieIcfgContainer [2024-12-02 07:18:53,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:18:53,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:18:53,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:18:53,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:18:53,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:18:52" (1/3) ... [2024-12-02 07:18:53,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b89195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:18:53, skipping insertion in model container [2024-12-02 07:18:53,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:18:53" (2/3) ... [2024-12-02 07:18:53,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b89195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:18:53, skipping insertion in model container [2024-12-02 07:18:53,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:18:53" (3/3) ... [2024-12-02 07:18:53,905 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-12-02 07:18:53,920 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:18:53,921 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_05-funloop_hard2.i that has 2 procedures, 180 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-12-02 07:18:53,922 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:18:53,998 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:18:54,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 185 transitions, 374 flow [2024-12-02 07:18:54,104 INFO L124 PetriNetUnfolderBase]: 6/184 cut-off events. [2024-12-02 07:18:54,106 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:18:54,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 184 events. 6/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 228 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2024-12-02 07:18:54,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 185 transitions, 374 flow [2024-12-02 07:18:54,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 184 transitions, 371 flow [2024-12-02 07:18:54,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:18:54,134 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;@40e868be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:18:54,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-12-02 07:18:54,156 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:18:54,156 INFO L124 PetriNetUnfolderBase]: 4/117 cut-off events. [2024-12-02 07:18:54,157 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:18:54,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:18:54,157 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] [2024-12-02 07:18:54,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:18:54,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:54,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1097279062, now seen corresponding path program 1 times [2024-12-02 07:18:54,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:54,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073127097] [2024-12-02 07:18:54,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:54,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:54,457 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 07:18:54,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:54,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073127097] [2024-12-02 07:18:54,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073127097] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:54,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:54,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:18:54,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475024517] [2024-12-02 07:18:54,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:54,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:18:54,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:54,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:18:54,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:18:54,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2024-12-02 07:18:54,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 07:18:54,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:18:54,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2024-12-02 07:18:54,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:18:54,606 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2024-12-02 07:18:54,606 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 07:18:54,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 321 events. 15/321 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 902 event pairs, 10 based on Foata normal form. 12/312 useless extension candidates. Maximal degree in co-relation 266. Up to 36 conditions per place. [2024-12-02 07:18:54,610 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2024-12-02 07:18:54,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2024-12-02 07:18:54,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:18:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:18:54,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-12-02 07:18:54,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9477477477477477 [2024-12-02 07:18:54,636 INFO L175 Difference]: Start difference. First operand has 182 places, 184 transitions, 371 flow. Second operand 3 states and 526 transitions. [2024-12-02 07:18:54,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2024-12-02 07:18:54,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:18:54,646 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2024-12-02 07:18:54,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2024-12-02 07:18:54,652 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2024-12-02 07:18:54,652 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2024-12-02 07:18:54,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 07:18:54,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:18:54,652 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:54,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:18:54,653 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:18:54,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1511336742, now seen corresponding path program 1 times [2024-12-02 07:18:54,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:54,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072273127] [2024-12-02 07:18:54,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:54,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:54,826 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 07:18:54,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072273127] [2024-12-02 07:18:54,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072273127] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454088438] [2024-12-02 07:18:54,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:54,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:54,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:54,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:54,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:18:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:54,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:18:54,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 07:18:54,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:18:54,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454088438] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:54,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:18:54,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 07:18:54,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553258008] [2024-12-02 07:18:54,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:54,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:18:54,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:54,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:18:54,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:18:54,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2024-12-02 07:18:54,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 07:18:54,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:18:54,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2024-12-02 07:18:54,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:18:55,064 INFO L124 PetriNetUnfolderBase]: 35/481 cut-off events. [2024-12-02 07:18:55,064 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 07:18:55,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 481 events. 35/481 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1717 event pairs, 10 based on Foata normal form. 3/450 useless extension candidates. Maximal degree in co-relation 481. Up to 51 conditions per place. [2024-12-02 07:18:55,067 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-12-02 07:18:55,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2024-12-02 07:18:55,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:18:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:18:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-12-02 07:18:55,069 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9477477477477477 [2024-12-02 07:18:55,070 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2024-12-02 07:18:55,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2024-12-02 07:18:55,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:18:55,073 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2024-12-02 07:18:55,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=186, PETRI_TRANSITIONS=183} [2024-12-02 07:18:55,074 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2024-12-02 07:18:55,074 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2024-12-02 07:18:55,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 07:18:55,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:18:55,075 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 07:18:55,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:18:55,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:55,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:18:55,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:55,277 INFO L85 PathProgramCache]: Analyzing trace with hash -599608147, now seen corresponding path program 1 times [2024-12-02 07:18:55,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:55,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087342748] [2024-12-02 07:18:55,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:55,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:55,413 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 07:18:55,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:55,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087342748] [2024-12-02 07:18:55,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087342748] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:55,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825268546] [2024-12-02 07:18:55,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:55,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:55,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:55,415 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:55,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:18:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:55,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 07:18:55,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:55,563 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 07:18:55,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:18:55,602 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 07:18:55,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825268546] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:18:55,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:18:55,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 07:18:55,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331097207] [2024-12-02 07:18:55,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:18:55,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:18:55,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:55,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:18:55,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:18:55,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-12-02 07:18:55,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 183 transitions, 386 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 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 07:18:55,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:18:55,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-12-02 07:18:55,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:18:55,821 INFO L124 PetriNetUnfolderBase]: 24/489 cut-off events. [2024-12-02 07:18:55,821 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 07:18:55,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 489 events. 24/489 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1566 event pairs, 14 based on Foata normal form. 2/457 useless extension candidates. Maximal degree in co-relation 458. Up to 51 conditions per place. [2024-12-02 07:18:55,824 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2024-12-02 07:18:55,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2024-12-02 07:18:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:18:55,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:18:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2024-12-02 07:18:55,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9135135135135135 [2024-12-02 07:18:55,828 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2024-12-02 07:18:55,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2024-12-02 07:18:55,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:18:55,833 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2024-12-02 07:18:55,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=196, PETRI_TRANSITIONS=189} [2024-12-02 07:18:55,834 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2024-12-02 07:18:55,834 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2024-12-02 07:18:55,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 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 07:18:55,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:18:55,836 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:55,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:18:56,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:56,037 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:18:56,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:56,037 INFO L85 PathProgramCache]: Analyzing trace with hash -623758675, now seen corresponding path program 2 times [2024-12-02 07:18:56,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:56,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006800838] [2024-12-02 07:18:56,038 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:18:56,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:56,071 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:18:56,071 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:18:56,656 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 07:18:56,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:56,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006800838] [2024-12-02 07:18:56,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006800838] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:56,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:56,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:18:56,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245104784] [2024-12-02 07:18:56,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:56,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:18:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:56,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:18:56,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:18:56,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:18:56,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 189 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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 07:18:56,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:18:56,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:18:56,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:18:57,267 INFO L124 PetriNetUnfolderBase]: 333/1545 cut-off events. [2024-12-02 07:18:57,267 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-12-02 07:18:57,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 1545 events. 333/1545 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10107 event pairs, 160 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2144. Up to 544 conditions per place. [2024-12-02 07:18:57,275 INFO L140 encePairwiseOnDemand]: 174/185 looper letters, 36 selfloop transitions, 22 changer transitions 0/218 dead transitions. [2024-12-02 07:18:57,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 218 transitions, 608 flow [2024-12-02 07:18:57,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:18:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:18:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2024-12-02 07:18:57,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8801801801801802 [2024-12-02 07:18:57,278 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 977 transitions. [2024-12-02 07:18:57,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 218 transitions, 608 flow [2024-12-02 07:18:57,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 602 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 07:18:57,283 INFO L231 Difference]: Finished difference. Result has 205 places, 210 transitions, 578 flow [2024-12-02 07:18:57,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=205, PETRI_TRANSITIONS=210} [2024-12-02 07:18:57,284 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2024-12-02 07:18:57,285 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 578 flow [2024-12-02 07:18:57,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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 07:18:57,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:18:57,286 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:57,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:18:57,286 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:18:57,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1947137155, now seen corresponding path program 1 times [2024-12-02 07:18:57,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:57,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365467078] [2024-12-02 07:18:57,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:57,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:57,466 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 07:18:57,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:57,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365467078] [2024-12-02 07:18:57,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365467078] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:57,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184854768] [2024-12-02 07:18:57,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:57,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:57,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:57,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:57,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:18:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:57,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 07:18:57,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:57,624 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 07:18:57,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:18:57,727 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 07:18:57,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184854768] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:18:57,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:18:57,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-12-02 07:18:57,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821435169] [2024-12-02 07:18:57,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:18:57,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:18:57,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:57,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:18:57,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:18:57,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-12-02 07:18:57,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 210 transitions, 578 flow. Second operand has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 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 07:18:57,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:18:57,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-12-02 07:18:57,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:18:58,153 INFO L124 PetriNetUnfolderBase]: 118/1109 cut-off events. [2024-12-02 07:18:58,154 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2024-12-02 07:18:58,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 1109 events. 118/1109 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5885 event pairs, 24 based on Foata normal form. 4/1039 useless extension candidates. Maximal degree in co-relation 1418. Up to 133 conditions per place. [2024-12-02 07:18:58,160 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 20 selfloop transitions, 21 changer transitions 0/228 dead transitions. [2024-12-02 07:18:58,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 228 transitions, 748 flow [2024-12-02 07:18:58,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 07:18:58,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-02 07:18:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2024-12-02 07:18:58,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9088803088803089 [2024-12-02 07:18:58,167 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 578 flow. Second operand 21 states and 3531 transitions. [2024-12-02 07:18:58,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 228 transitions, 748 flow [2024-12-02 07:18:58,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 228 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:18:58,173 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 708 flow [2024-12-02 07:18:58,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=708, PETRI_PLACES=230, PETRI_TRANSITIONS=223} [2024-12-02 07:18:58,174 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2024-12-02 07:18:58,174 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 708 flow [2024-12-02 07:18:58,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 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 07:18:58,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:18:58,176 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:58,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:18:58,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:58,377 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:18:58,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash -977440637, now seen corresponding path program 2 times [2024-12-02 07:18:58,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:58,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157226603] [2024-12-02 07:18:58,378 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:18:58,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:58,399 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:18:58,399 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:18:58,727 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 07:18:58,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:58,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157226603] [2024-12-02 07:18:58,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157226603] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:58,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:58,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:18:58,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835343715] [2024-12-02 07:18:58,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:58,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:18:58,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:58,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:18:58,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:18:58,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:18:58,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 223 transitions, 708 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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 07:18:58,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:18:58,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:18:58,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:18:59,419 INFO L124 PetriNetUnfolderBase]: 505/2412 cut-off events. [2024-12-02 07:18:59,419 INFO L125 PetriNetUnfolderBase]: For 420/450 co-relation queries the response was YES. [2024-12-02 07:18:59,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4105 conditions, 2412 events. 505/2412 cut-off events. For 420/450 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 17683 event pairs, 194 based on Foata normal form. 5/2276 useless extension candidates. Maximal degree in co-relation 3909. Up to 824 conditions per place. [2024-12-02 07:18:59,435 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 61 selfloop transitions, 46 changer transitions 0/284 dead transitions. [2024-12-02 07:18:59,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 284 transitions, 1086 flow [2024-12-02 07:18:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:18:59,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:18:59,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2024-12-02 07:18:59,438 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9018018018018018 [2024-12-02 07:18:59,438 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 708 flow. Second operand 6 states and 1001 transitions. [2024-12-02 07:18:59,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 284 transitions, 1086 flow [2024-12-02 07:18:59,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 284 transitions, 1062 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-12-02 07:18:59,446 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2024-12-02 07:18:59,447 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=234, PETRI_TRANSITIONS=268} [2024-12-02 07:18:59,447 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2024-12-02 07:18:59,447 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2024-12-02 07:18:59,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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 07:18:59,448 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:18:59,448 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:59,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:18:59,449 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:18:59,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:59,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1101107293, now seen corresponding path program 1 times [2024-12-02 07:18:59,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:59,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362523688] [2024-12-02 07:18:59,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:59,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:59,780 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 07:18:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362523688] [2024-12-02 07:18:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362523688] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962002273] [2024-12-02 07:18:59,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:59,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:59,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:59,782 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:59,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:18:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:59,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 07:18:59,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:59,981 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 07:18:59,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:19:00,186 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 07:19:00,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962002273] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:19:00,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:19:00,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-12-02 07:19:00,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114975320] [2024-12-02 07:19:00,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:19:00,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 07:19:00,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:00,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 07:19:00,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:19:00,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-12-02 07:19:00,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 268 transitions, 1038 flow. Second operand has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 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 07:19:00,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:00,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-12-02 07:19:00,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:00,749 INFO L124 PetriNetUnfolderBase]: 264/1738 cut-off events. [2024-12-02 07:19:00,749 INFO L125 PetriNetUnfolderBase]: For 601/630 co-relation queries the response was YES. [2024-12-02 07:19:00,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3163 conditions, 1738 events. 264/1738 cut-off events. For 601/630 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11636 event pairs, 40 based on Foata normal form. 13/1667 useless extension candidates. Maximal degree in co-relation 2886. Up to 204 conditions per place. [2024-12-02 07:19:00,759 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2024-12-02 07:19:00,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2024-12-02 07:19:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 07:19:00,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-12-02 07:19:00,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2024-12-02 07:19:00,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9073873873873873 [2024-12-02 07:19:00,770 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2024-12-02 07:19:00,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2024-12-02 07:19:00,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 285 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:19:00,781 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2024-12-02 07:19:00,782 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=267, PETRI_TRANSITIONS=278} [2024-12-02 07:19:00,782 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2024-12-02 07:19:00,782 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2024-12-02 07:19:00,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 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 07:19:00,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:00,784 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:00,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 07:19:00,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:19:00,985 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:00,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:00,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1002039085, now seen corresponding path program 2 times [2024-12-02 07:19:00,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:00,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183608250] [2024-12-02 07:19:00,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:19:00,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:01,006 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:19:01,006 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:01,299 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 07:19:01,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:01,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183608250] [2024-12-02 07:19:01,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183608250] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:01,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:01,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:19:01,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090557602] [2024-12-02 07:19:01,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:01,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:01,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:01,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:01,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:01,423 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 185 [2024-12-02 07:19:01,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 278 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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 07:19:01,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:01,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 185 [2024-12-02 07:19:01,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:02,110 INFO L124 PetriNetUnfolderBase]: 949/3309 cut-off events. [2024-12-02 07:19:02,111 INFO L125 PetriNetUnfolderBase]: For 2002/2097 co-relation queries the response was YES. [2024-12-02 07:19:02,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7539 conditions, 3309 events. 949/3309 cut-off events. For 2002/2097 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 23799 event pairs, 303 based on Foata normal form. 20/3172 useless extension candidates. Maximal degree in co-relation 7261. Up to 1634 conditions per place. [2024-12-02 07:19:02,124 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 102 selfloop transitions, 57 changer transitions 0/333 dead transitions. [2024-12-02 07:19:02,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 333 transitions, 1752 flow [2024-12-02 07:19:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:19:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:19:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2024-12-02 07:19:02,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8495495495495495 [2024-12-02 07:19:02,126 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 943 transitions. [2024-12-02 07:19:02,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 333 transitions, 1752 flow [2024-12-02 07:19:02,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 333 transitions, 1706 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-12-02 07:19:02,135 INFO L231 Difference]: Finished difference. Result has 259 places, 325 transitions, 1642 flow [2024-12-02 07:19:02,135 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1642, PETRI_PLACES=259, PETRI_TRANSITIONS=325} [2024-12-02 07:19:02,136 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2024-12-02 07:19:02,136 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 325 transitions, 1642 flow [2024-12-02 07:19:02,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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 07:19:02,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:02,137 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:02,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:19:02,137 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:02,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:02,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1255064776, now seen corresponding path program 1 times [2024-12-02 07:19:02,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:02,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464240653] [2024-12-02 07:19:02,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:02,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:02,518 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 07:19:02,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:02,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464240653] [2024-12-02 07:19:02,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464240653] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:02,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:02,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:19:02,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772768430] [2024-12-02 07:19:02,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:02,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:19:02,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:02,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:19:02,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:19:02,630 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 185 [2024-12-02 07:19:02,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 325 transitions, 1642 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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 07:19:02,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:02,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 185 [2024-12-02 07:19:02,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:03,403 INFO L124 PetriNetUnfolderBase]: 1319/4555 cut-off events. [2024-12-02 07:19:03,404 INFO L125 PetriNetUnfolderBase]: For 5071/5198 co-relation queries the response was YES. [2024-12-02 07:19:03,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11634 conditions, 4555 events. 1319/4555 cut-off events. For 5071/5198 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 35603 event pairs, 341 based on Foata normal form. 40/4406 useless extension candidates. Maximal degree in co-relation 11373. Up to 2190 conditions per place. [2024-12-02 07:19:03,465 INFO L140 encePairwiseOnDemand]: 162/185 looper letters, 143 selfloop transitions, 103 changer transitions 4/426 dead transitions. [2024-12-02 07:19:03,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 426 transitions, 2608 flow [2024-12-02 07:19:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:19:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:19:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2024-12-02 07:19:03,467 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8855855855855855 [2024-12-02 07:19:03,467 INFO L175 Difference]: Start difference. First operand has 259 places, 325 transitions, 1642 flow. Second operand 6 states and 983 transitions. [2024-12-02 07:19:03,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 426 transitions, 2608 flow [2024-12-02 07:19:03,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 426 transitions, 2544 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-12-02 07:19:03,483 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2494 flow [2024-12-02 07:19:03,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1584, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2494, PETRI_PLACES=269, PETRI_TRANSITIONS=410} [2024-12-02 07:19:03,485 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2024-12-02 07:19:03,485 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2494 flow [2024-12-02 07:19:03,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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 07:19:03,485 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:03,485 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 07:19:03,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:19:03,485 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:03,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:03,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1184324549, now seen corresponding path program 1 times [2024-12-02 07:19:03,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:03,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877866324] [2024-12-02 07:19:03,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:03,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:03,875 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 07:19:03,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:03,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877866324] [2024-12-02 07:19:03,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877866324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:03,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:03,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:19:03,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708128577] [2024-12-02 07:19:03,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:03,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:19:03,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:03,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:19:03,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:05,181 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:05,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 410 transitions, 2494 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:05,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:05,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:05,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:06,131 INFO L124 PetriNetUnfolderBase]: 1227/4913 cut-off events. [2024-12-02 07:19:06,131 INFO L125 PetriNetUnfolderBase]: For 6168/6307 co-relation queries the response was YES. [2024-12-02 07:19:06,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13109 conditions, 4913 events. 1227/4913 cut-off events. For 6168/6307 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 41545 event pairs, 180 based on Foata normal form. 37/4873 useless extension candidates. Maximal degree in co-relation 12831. Up to 712 conditions per place. [2024-12-02 07:19:06,162 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 73 selfloop transitions, 15 changer transitions 0/468 dead transitions. [2024-12-02 07:19:06,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 468 transitions, 2786 flow [2024-12-02 07:19:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:19:06,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1467 transitions. [2024-12-02 07:19:06,165 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8810810810810811 [2024-12-02 07:19:06,165 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2494 flow. Second operand 9 states and 1467 transitions. [2024-12-02 07:19:06,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 468 transitions, 2786 flow [2024-12-02 07:19:06,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 468 transitions, 2672 flow, removed 57 selfloop flow, removed 0 redundant places. [2024-12-02 07:19:06,204 INFO L231 Difference]: Finished difference. Result has 284 places, 424 transitions, 2492 flow [2024-12-02 07:19:06,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2380, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2492, PETRI_PLACES=284, PETRI_TRANSITIONS=424} [2024-12-02 07:19:06,206 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2024-12-02 07:19:06,206 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 424 transitions, 2492 flow [2024-12-02 07:19:06,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:06,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:06,206 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 07:19:06,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:19:06,207 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:06,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:06,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1989551105, now seen corresponding path program 2 times [2024-12-02 07:19:06,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:06,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768397935] [2024-12-02 07:19:06,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:19:06,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:06,238 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:19:06,238 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:06,591 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 07:19:06,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:06,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768397935] [2024-12-02 07:19:06,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768397935] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:06,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:06,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:19:06,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757769144] [2024-12-02 07:19:06,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:06,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:19:06,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:06,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:19:06,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:07,844 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:07,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 424 transitions, 2492 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:07,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:07,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:07,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:09,377 INFO L124 PetriNetUnfolderBase]: 2479/9316 cut-off events. [2024-12-02 07:19:09,378 INFO L125 PetriNetUnfolderBase]: For 12630/12930 co-relation queries the response was YES. [2024-12-02 07:19:09,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26480 conditions, 9316 events. 2479/9316 cut-off events. For 12630/12930 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 88685 event pairs, 325 based on Foata normal form. 99/9273 useless extension candidates. Maximal degree in co-relation 26194. Up to 1468 conditions per place. [2024-12-02 07:19:09,426 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 119 selfloop transitions, 20 changer transitions 4/523 dead transitions. [2024-12-02 07:19:09,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 523 transitions, 3210 flow [2024-12-02 07:19:09,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:19:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-12-02 07:19:09,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-12-02 07:19:09,429 INFO L175 Difference]: Start difference. First operand has 284 places, 424 transitions, 2492 flow. Second operand 9 states and 1475 transitions. [2024-12-02 07:19:09,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 523 transitions, 3210 flow [2024-12-02 07:19:09,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 523 transitions, 3200 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:19:09,482 INFO L231 Difference]: Finished difference. Result has 298 places, 441 transitions, 2671 flow [2024-12-02 07:19:09,482 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2671, PETRI_PLACES=298, PETRI_TRANSITIONS=441} [2024-12-02 07:19:09,483 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 116 predicate places. [2024-12-02 07:19:09,483 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 441 transitions, 2671 flow [2024-12-02 07:19:09,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:09,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:09,483 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 07:19:09,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:19:09,483 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:09,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:09,484 INFO L85 PathProgramCache]: Analyzing trace with hash -353039779, now seen corresponding path program 3 times [2024-12-02 07:19:09,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:09,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675681706] [2024-12-02 07:19:09,484 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:19:09,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:09,502 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 07:19:09,502 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:09,791 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 07:19:09,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:09,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675681706] [2024-12-02 07:19:09,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675681706] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:09,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:09,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:19:09,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004761177] [2024-12-02 07:19:09,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:09,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:19:09,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:09,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:19:09,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:11,056 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:11,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 441 transitions, 2671 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:11,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:11,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:11,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:12,849 INFO L124 PetriNetUnfolderBase]: 2778/10527 cut-off events. [2024-12-02 07:19:12,849 INFO L125 PetriNetUnfolderBase]: For 16316/16768 co-relation queries the response was YES. [2024-12-02 07:19:12,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31099 conditions, 10527 events. 2778/10527 cut-off events. For 16316/16768 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 101825 event pairs, 352 based on Foata normal form. 106/10467 useless extension candidates. Maximal degree in co-relation 30805. Up to 1567 conditions per place. [2024-12-02 07:19:12,899 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 123 selfloop transitions, 22 changer transitions 0/525 dead transitions. [2024-12-02 07:19:12,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 525 transitions, 3459 flow [2024-12-02 07:19:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:19:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2024-12-02 07:19:12,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8840840840840841 [2024-12-02 07:19:12,901 INFO L175 Difference]: Start difference. First operand has 298 places, 441 transitions, 2671 flow. Second operand 9 states and 1472 transitions. [2024-12-02 07:19:12,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 525 transitions, 3459 flow [2024-12-02 07:19:12,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 525 transitions, 3421 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-12-02 07:19:12,966 INFO L231 Difference]: Finished difference. Result has 311 places, 453 transitions, 2840 flow [2024-12-02 07:19:12,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2657, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2840, PETRI_PLACES=311, PETRI_TRANSITIONS=453} [2024-12-02 07:19:12,967 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 129 predicate places. [2024-12-02 07:19:12,967 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 453 transitions, 2840 flow [2024-12-02 07:19:12,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:12,968 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:12,968 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 07:19:12,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:19:12,968 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:12,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1111480137, now seen corresponding path program 4 times [2024-12-02 07:19:12,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:12,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820100703] [2024-12-02 07:19:12,969 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:19:12,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:13,004 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:19:13,004 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:14,751 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 07:19:14,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:14,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820100703] [2024-12-02 07:19:14,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820100703] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:14,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:14,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:19:14,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327922279] [2024-12-02 07:19:14,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:14,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:19:14,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:14,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:19:14,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:19:16,868 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 185 [2024-12-02 07:19:16,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 453 transitions, 2840 flow. Second operand has 15 states, 15 states have (on average 134.53333333333333) internal successors, (2018), 15 states have internal predecessors, (2018), 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 07:19:16,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:16,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 185 [2024-12-02 07:19:16,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:20,245 INFO L124 PetriNetUnfolderBase]: 4996/14906 cut-off events. [2024-12-02 07:19:20,245 INFO L125 PetriNetUnfolderBase]: For 37874/38352 co-relation queries the response was YES. [2024-12-02 07:19:20,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52486 conditions, 14906 events. 4996/14906 cut-off events. For 37874/38352 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 139732 event pairs, 972 based on Foata normal form. 174/14852 useless extension candidates. Maximal degree in co-relation 52186. Up to 3520 conditions per place. [2024-12-02 07:19:20,380 INFO L140 encePairwiseOnDemand]: 154/185 looper letters, 710 selfloop transitions, 147 changer transitions 8/1068 dead transitions. [2024-12-02 07:19:20,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 1068 transitions, 9513 flow [2024-12-02 07:19:20,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:19:20,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-12-02 07:19:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2580 transitions. [2024-12-02 07:19:20,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8203497615262321 [2024-12-02 07:19:20,556 INFO L175 Difference]: Start difference. First operand has 311 places, 453 transitions, 2840 flow. Second operand 17 states and 2580 transitions. [2024-12-02 07:19:20,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 1068 transitions, 9513 flow [2024-12-02 07:19:20,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 1068 transitions, 9368 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-12-02 07:19:20,678 INFO L231 Difference]: Finished difference. Result has 337 places, 586 transitions, 4877 flow [2024-12-02 07:19:20,678 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2814, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4877, PETRI_PLACES=337, PETRI_TRANSITIONS=586} [2024-12-02 07:19:20,679 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 155 predicate places. [2024-12-02 07:19:20,679 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 586 transitions, 4877 flow [2024-12-02 07:19:20,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 134.53333333333333) internal successors, (2018), 15 states have internal predecessors, (2018), 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 07:19:20,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:20,680 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 07:19:20,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:19:20,680 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:20,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1847240484, now seen corresponding path program 1 times [2024-12-02 07:19:20,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:20,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39367070] [2024-12-02 07:19:20,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:20,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-02 07:19:20,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39367070] [2024-12-02 07:19:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39367070] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:20,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:20,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:19:20,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259722638] [2024-12-02 07:19:20,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:20,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:19:20,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:20,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:19:20,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:21,930 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:21,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 586 transitions, 4877 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:21,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:21,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:21,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:24,600 INFO L124 PetriNetUnfolderBase]: 3556/13200 cut-off events. [2024-12-02 07:19:24,600 INFO L125 PetriNetUnfolderBase]: For 38940/39760 co-relation queries the response was YES. [2024-12-02 07:19:24,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44055 conditions, 13200 events. 3556/13200 cut-off events. For 38940/39760 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 132579 event pairs, 355 based on Foata normal form. 152/13141 useless extension candidates. Maximal degree in co-relation 43743. Up to 2012 conditions per place. [2024-12-02 07:19:24,731 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 145 selfloop transitions, 42 changer transitions 0/669 dead transitions. [2024-12-02 07:19:24,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 669 transitions, 5945 flow [2024-12-02 07:19:24,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:19:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-12-02 07:19:24,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-12-02 07:19:24,734 INFO L175 Difference]: Start difference. First operand has 337 places, 586 transitions, 4877 flow. Second operand 9 states and 1475 transitions. [2024-12-02 07:19:24,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 669 transitions, 5945 flow [2024-12-02 07:19:24,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 669 transitions, 5841 flow, removed 23 selfloop flow, removed 2 redundant places. [2024-12-02 07:19:24,924 INFO L231 Difference]: Finished difference. Result has 349 places, 602 transitions, 5152 flow [2024-12-02 07:19:24,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=4816, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5152, PETRI_PLACES=349, PETRI_TRANSITIONS=602} [2024-12-02 07:19:24,925 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 167 predicate places. [2024-12-02 07:19:24,925 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 602 transitions, 5152 flow [2024-12-02 07:19:24,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:24,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:24,926 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 07:19:24,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:19:24,926 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:24,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:24,927 INFO L85 PathProgramCache]: Analyzing trace with hash -79349447, now seen corresponding path program 5 times [2024-12-02 07:19:24,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:24,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825651825] [2024-12-02 07:19:24,927 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:19:24,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:24,958 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:19:24,958 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-12-02 07:19:25,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:25,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825651825] [2024-12-02 07:19:25,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825651825] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:19:25,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887487064] [2024-12-02 07:19:25,589 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:19:25,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:19:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:19:25,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:19:25,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 07:19:25,754 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:19:25,754 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:25,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 07:19:25,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:19:26,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 07:19:26,099 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 07:19:26,099 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:19:26,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887487064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:26,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:19:26,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-12-02 07:19:26,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811734018] [2024-12-02 07:19:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:26,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:19:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:26,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:19:26,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:19:27,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:27,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 602 transitions, 5152 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:19:27,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:27,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:27,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:30,513 INFO L124 PetriNetUnfolderBase]: 3875/14269 cut-off events. [2024-12-02 07:19:30,513 INFO L125 PetriNetUnfolderBase]: For 47172/47988 co-relation queries the response was YES. [2024-12-02 07:19:30,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49270 conditions, 14269 events. 3875/14269 cut-off events. For 47172/47988 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 145361 event pairs, 379 based on Foata normal form. 156/14220 useless extension candidates. Maximal degree in co-relation 48951. Up to 2295 conditions per place. [2024-12-02 07:19:30,599 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 165 selfloop transitions, 44 changer transitions 2/693 dead transitions. [2024-12-02 07:19:30,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 693 transitions, 6379 flow [2024-12-02 07:19:30,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:19:30,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:19:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1632 transitions. [2024-12-02 07:19:30,600 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8821621621621621 [2024-12-02 07:19:30,600 INFO L175 Difference]: Start difference. First operand has 349 places, 602 transitions, 5152 flow. Second operand 10 states and 1632 transitions. [2024-12-02 07:19:30,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 693 transitions, 6379 flow [2024-12-02 07:19:30,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 693 transitions, 6266 flow, removed 24 selfloop flow, removed 2 redundant places. [2024-12-02 07:19:30,787 INFO L231 Difference]: Finished difference. Result has 362 places, 620 transitions, 5446 flow [2024-12-02 07:19:30,787 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=5074, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5446, PETRI_PLACES=362, PETRI_TRANSITIONS=620} [2024-12-02 07:19:30,788 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 180 predicate places. [2024-12-02 07:19:30,788 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 620 transitions, 5446 flow [2024-12-02 07:19:30,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:19:30,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:30,788 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 07:19:30,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 07:19:30,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 07:19:30,989 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:30,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:30,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2088976947, now seen corresponding path program 6 times [2024-12-02 07:19:30,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:30,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145148587] [2024-12-02 07:19:30,990 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:19:30,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:31,005 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 07:19:31,005 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:31,197 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 07:19:31,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:31,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145148587] [2024-12-02 07:19:31,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145148587] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:31,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:31,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:19:31,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939811808] [2024-12-02 07:19:31,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:31,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:19:31,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:31,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:19:31,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:32,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:32,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 620 transitions, 5446 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:32,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:32,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:32,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:35,355 INFO L124 PetriNetUnfolderBase]: 4240/15636 cut-off events. [2024-12-02 07:19:35,355 INFO L125 PetriNetUnfolderBase]: For 56341/57321 co-relation queries the response was YES. [2024-12-02 07:19:35,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54822 conditions, 15636 events. 4240/15636 cut-off events. For 56341/57321 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 162536 event pairs, 481 based on Foata normal form. 161/15552 useless extension candidates. Maximal degree in co-relation 54496. Up to 2435 conditions per place. [2024-12-02 07:19:35,487 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 160 selfloop transitions, 53 changer transitions 0/695 dead transitions. [2024-12-02 07:19:35,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 695 transitions, 6666 flow [2024-12-02 07:19:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:35,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:19:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1477 transitions. [2024-12-02 07:19:35,489 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8870870870870871 [2024-12-02 07:19:35,490 INFO L175 Difference]: Start difference. First operand has 362 places, 620 transitions, 5446 flow. Second operand 9 states and 1477 transitions. [2024-12-02 07:19:35,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 695 transitions, 6666 flow [2024-12-02 07:19:35,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 695 transitions, 6578 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-12-02 07:19:35,770 INFO L231 Difference]: Finished difference. Result has 374 places, 643 transitions, 5919 flow [2024-12-02 07:19:35,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=5380, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5919, PETRI_PLACES=374, PETRI_TRANSITIONS=643} [2024-12-02 07:19:35,771 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 192 predicate places. [2024-12-02 07:19:35,771 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 643 transitions, 5919 flow [2024-12-02 07:19:35,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:35,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:35,772 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 07:19:35,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:19:35,772 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:35,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:35,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2063218377, now seen corresponding path program 7 times [2024-12-02 07:19:35,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:35,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508189195] [2024-12-02 07:19:35,774 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:19:35,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:36,169 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 07:19:36,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:36,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508189195] [2024-12-02 07:19:36,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508189195] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:36,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:36,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:19:36,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340222944] [2024-12-02 07:19:36,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:36,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:19:36,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:36,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:19:36,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:36,745 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:36,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 643 transitions, 5919 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:36,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:36,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:36,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:40,194 INFO L124 PetriNetUnfolderBase]: 4850/17443 cut-off events. [2024-12-02 07:19:40,194 INFO L125 PetriNetUnfolderBase]: For 70807/71931 co-relation queries the response was YES. [2024-12-02 07:19:40,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63187 conditions, 17443 events. 4850/17443 cut-off events. For 70807/71931 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 185565 event pairs, 469 based on Foata normal form. 193/17385 useless extension candidates. Maximal degree in co-relation 62855. Up to 2832 conditions per place. [2024-12-02 07:19:40,375 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 189 selfloop transitions, 58 changer transitions 0/729 dead transitions. [2024-12-02 07:19:40,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 729 transitions, 7347 flow [2024-12-02 07:19:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:40,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:19:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2024-12-02 07:19:40,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8894894894894895 [2024-12-02 07:19:40,376 INFO L175 Difference]: Start difference. First operand has 374 places, 643 transitions, 5919 flow. Second operand 9 states and 1481 transitions. [2024-12-02 07:19:40,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 729 transitions, 7347 flow [2024-12-02 07:19:40,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 729 transitions, 7249 flow, removed 49 selfloop flow, removed 0 redundant places. [2024-12-02 07:19:40,847 INFO L231 Difference]: Finished difference. Result has 389 places, 661 transitions, 6340 flow [2024-12-02 07:19:40,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=5821, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=643, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6340, PETRI_PLACES=389, PETRI_TRANSITIONS=661} [2024-12-02 07:19:40,848 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 207 predicate places. [2024-12-02 07:19:40,848 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 661 transitions, 6340 flow [2024-12-02 07:19:40,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:40,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:40,849 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 07:19:40,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:19:40,849 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:40,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:40,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1408650635, now seen corresponding path program 8 times [2024-12-02 07:19:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:40,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854553712] [2024-12-02 07:19:40,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:19:40,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:40,863 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:19:40,863 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:41,023 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 07:19:41,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854553712] [2024-12-02 07:19:41,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854553712] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:41,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:41,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:19:41,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833439198] [2024-12-02 07:19:41,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:41,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:19:41,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:41,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:19:41,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:41,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:41,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 661 transitions, 6340 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:41,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:41,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:41,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:45,687 INFO L124 PetriNetUnfolderBase]: 4860/17632 cut-off events. [2024-12-02 07:19:45,688 INFO L125 PetriNetUnfolderBase]: For 77418/78695 co-relation queries the response was YES. [2024-12-02 07:19:45,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64511 conditions, 17632 events. 4860/17632 cut-off events. For 77418/78695 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 188662 event pairs, 438 based on Foata normal form. 295/17694 useless extension candidates. Maximal degree in co-relation 64171. Up to 2769 conditions per place. [2024-12-02 07:19:45,856 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 197 selfloop transitions, 75 changer transitions 0/754 dead transitions. [2024-12-02 07:19:45,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 754 transitions, 7758 flow [2024-12-02 07:19:45,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:19:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1470 transitions. [2024-12-02 07:19:45,859 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2024-12-02 07:19:45,859 INFO L175 Difference]: Start difference. First operand has 389 places, 661 transitions, 6340 flow. Second operand 9 states and 1470 transitions. [2024-12-02 07:19:45,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 754 transitions, 7758 flow [2024-12-02 07:19:46,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 754 transitions, 7668 flow, removed 45 selfloop flow, removed 0 redundant places. [2024-12-02 07:19:46,288 INFO L231 Difference]: Finished difference. Result has 401 places, 673 transitions, 6612 flow [2024-12-02 07:19:46,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=6252, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6612, PETRI_PLACES=401, PETRI_TRANSITIONS=673} [2024-12-02 07:19:46,289 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 219 predicate places. [2024-12-02 07:19:46,289 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 673 transitions, 6612 flow [2024-12-02 07:19:46,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:46,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:46,289 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 07:19:46,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:19:46,290 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:46,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:46,291 INFO L85 PathProgramCache]: Analyzing trace with hash 503092793, now seen corresponding path program 9 times [2024-12-02 07:19:46,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:46,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252667413] [2024-12-02 07:19:46,291 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:19:46,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:46,317 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 07:19:46,318 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:46,573 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 07:19:46,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:46,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252667413] [2024-12-02 07:19:46,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252667413] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:46,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:46,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:19:46,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38864050] [2024-12-02 07:19:46,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:46,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:19:46,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:46,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:19:46,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:19:47,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:47,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 673 transitions, 6612 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:47,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:47,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:47,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:51,951 INFO L124 PetriNetUnfolderBase]: 4576/16808 cut-off events. [2024-12-02 07:19:51,951 INFO L125 PetriNetUnfolderBase]: For 78762/79904 co-relation queries the response was YES. [2024-12-02 07:19:52,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62259 conditions, 16808 events. 4576/16808 cut-off events. For 78762/79904 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 177978 event pairs, 418 based on Foata normal form. 252/16835 useless extension candidates. Maximal degree in co-relation 61914. Up to 2599 conditions per place. [2024-12-02 07:19:52,094 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 198 selfloop transitions, 71 changer transitions 0/751 dead transitions. [2024-12-02 07:19:52,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 751 transitions, 7916 flow [2024-12-02 07:19:52,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:19:52,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:19:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1468 transitions. [2024-12-02 07:19:52,095 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8816816816816817 [2024-12-02 07:19:52,096 INFO L175 Difference]: Start difference. First operand has 401 places, 673 transitions, 6612 flow. Second operand 9 states and 1468 transitions. [2024-12-02 07:19:52,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 751 transitions, 7916 flow [2024-12-02 07:19:52,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 751 transitions, 7700 flow, removed 52 selfloop flow, removed 4 redundant places. [2024-12-02 07:19:52,433 INFO L231 Difference]: Finished difference. Result has 408 places, 676 transitions, 6644 flow [2024-12-02 07:19:52,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=6408, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6644, PETRI_PLACES=408, PETRI_TRANSITIONS=676} [2024-12-02 07:19:52,434 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 226 predicate places. [2024-12-02 07:19:52,434 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 676 transitions, 6644 flow [2024-12-02 07:19:52,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:19:52,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:52,434 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 07:19:52,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:19:52,434 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:52,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:52,435 INFO L85 PathProgramCache]: Analyzing trace with hash -489468787, now seen corresponding path program 10 times [2024-12-02 07:19:52,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:52,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127526461] [2024-12-02 07:19:52,436 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:19:52,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:52,455 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:19:52,455 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:52,778 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 07:19:52,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:52,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127526461] [2024-12-02 07:19:52,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127526461] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:52,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:19:52,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:19:52,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76092976] [2024-12-02 07:19:52,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:52,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:19:52,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:52,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:19:52,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:19:53,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:19:53,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 676 transitions, 6644 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:19:53,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:19:53,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:19:53,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:19:57,842 INFO L124 PetriNetUnfolderBase]: 4575/16845 cut-off events. [2024-12-02 07:19:57,842 INFO L125 PetriNetUnfolderBase]: For 76427/77543 co-relation queries the response was YES. [2024-12-02 07:19:57,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62133 conditions, 16845 events. 4575/16845 cut-off events. For 76427/77543 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 178594 event pairs, 464 based on Foata normal form. 228/16829 useless extension candidates. Maximal degree in co-relation 61785. Up to 2620 conditions per place. [2024-12-02 07:19:58,004 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 190 selfloop transitions, 78 changer transitions 0/750 dead transitions. [2024-12-02 07:19:58,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 750 transitions, 7900 flow [2024-12-02 07:19:58,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:19:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:19:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2024-12-02 07:19:58,006 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8778378378378379 [2024-12-02 07:19:58,006 INFO L175 Difference]: Start difference. First operand has 408 places, 676 transitions, 6644 flow. Second operand 10 states and 1624 transitions. [2024-12-02 07:19:58,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 750 transitions, 7900 flow [2024-12-02 07:19:58,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 750 transitions, 7750 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-12-02 07:19:58,348 INFO L231 Difference]: Finished difference. Result has 417 places, 687 transitions, 6908 flow [2024-12-02 07:19:58,348 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=6512, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6908, PETRI_PLACES=417, PETRI_TRANSITIONS=687} [2024-12-02 07:19:58,349 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 235 predicate places. [2024-12-02 07:19:58,349 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 687 transitions, 6908 flow [2024-12-02 07:19:58,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:19:58,349 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:19:58,349 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 07:19:58,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:19:58,350 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:19:58,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:58,351 INFO L85 PathProgramCache]: Analyzing trace with hash -182554273, now seen corresponding path program 11 times [2024-12-02 07:19:58,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:58,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684823071] [2024-12-02 07:19:58,351 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:19:58,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:58,368 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:19:58,368 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:59,007 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-12-02 07:19:59,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:59,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684823071] [2024-12-02 07:19:59,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684823071] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:19:59,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93437946] [2024-12-02 07:19:59,007 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:19:59,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:19:59,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:19:59,009 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:19:59,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 07:19:59,143 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:19:59,143 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:19:59,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 07:19:59,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:19:59,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 07:19:59,375 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 07:19:59,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:19:59,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93437946] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:19:59,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:19:59,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-12-02 07:19:59,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813521812] [2024-12-02 07:19:59,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:19:59,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:19:59,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:59,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:19:59,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:20:00,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:20:00,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 687 transitions, 6908 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:20:00,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:00,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:20:00,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:04,251 INFO L124 PetriNetUnfolderBase]: 4870/17833 cut-off events. [2024-12-02 07:20:04,251 INFO L125 PetriNetUnfolderBase]: For 85048/86229 co-relation queries the response was YES. [2024-12-02 07:20:04,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66409 conditions, 17833 events. 4870/17833 cut-off events. For 85048/86229 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 191341 event pairs, 473 based on Foata normal form. 222/17803 useless extension candidates. Maximal degree in co-relation 66055. Up to 2797 conditions per place. [2024-12-02 07:20:04,440 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 214 selfloop transitions, 67 changer transitions 0/763 dead transitions. [2024-12-02 07:20:04,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 763 transitions, 8350 flow [2024-12-02 07:20:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:20:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:20:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1632 transitions. [2024-12-02 07:20:04,442 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8821621621621621 [2024-12-02 07:20:04,442 INFO L175 Difference]: Start difference. First operand has 417 places, 687 transitions, 6908 flow. Second operand 10 states and 1632 transitions. [2024-12-02 07:20:04,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 763 transitions, 8350 flow [2024-12-02 07:20:04,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 763 transitions, 8120 flow, removed 69 selfloop flow, removed 4 redundant places. [2024-12-02 07:20:04,834 INFO L231 Difference]: Finished difference. Result has 426 places, 698 transitions, 7126 flow [2024-12-02 07:20:04,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=6772, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7126, PETRI_PLACES=426, PETRI_TRANSITIONS=698} [2024-12-02 07:20:04,834 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 244 predicate places. [2024-12-02 07:20:04,834 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 698 transitions, 7126 flow [2024-12-02 07:20:04,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:20:04,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:20:04,835 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 07:20:04,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 07:20:05,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 07:20:05,036 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:20:05,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:05,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1426797113, now seen corresponding path program 12 times [2024-12-02 07:20:05,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:05,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622018889] [2024-12-02 07:20:05,038 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:20:05,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:05,054 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 07:20:05,055 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:20:05,216 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 07:20:05,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:05,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622018889] [2024-12-02 07:20:05,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622018889] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:05,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:05,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:20:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482549898] [2024-12-02 07:20:05,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:05,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:20:05,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:05,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:20:05,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:20:06,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:20:06,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 698 transitions, 7126 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:06,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:06,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:20:06,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:10,553 INFO L124 PetriNetUnfolderBase]: 4876/17921 cut-off events. [2024-12-02 07:20:10,553 INFO L125 PetriNetUnfolderBase]: For 84745/85960 co-relation queries the response was YES. [2024-12-02 07:20:10,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66680 conditions, 17921 events. 4876/17921 cut-off events. For 84745/85960 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 192838 event pairs, 479 based on Foata normal form. 242/17913 useless extension candidates. Maximal degree in co-relation 66322. Up to 2809 conditions per place. [2024-12-02 07:20:10,740 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 205 selfloop transitions, 82 changer transitions 0/769 dead transitions. [2024-12-02 07:20:10,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 769 transitions, 8431 flow [2024-12-02 07:20:10,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:20:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:20:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1473 transitions. [2024-12-02 07:20:10,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8846846846846846 [2024-12-02 07:20:10,742 INFO L175 Difference]: Start difference. First operand has 426 places, 698 transitions, 7126 flow. Second operand 9 states and 1473 transitions. [2024-12-02 07:20:10,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 769 transitions, 8431 flow [2024-12-02 07:20:11,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 769 transitions, 8300 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-12-02 07:20:11,139 INFO L231 Difference]: Finished difference. Result has 432 places, 707 transitions, 7360 flow [2024-12-02 07:20:11,139 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=7004, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=698, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7360, PETRI_PLACES=432, PETRI_TRANSITIONS=707} [2024-12-02 07:20:11,139 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 250 predicate places. [2024-12-02 07:20:11,140 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 707 transitions, 7360 flow [2024-12-02 07:20:11,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:11,140 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:20:11,140 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 07:20:11,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:20:11,140 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:20:11,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:11,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1591387327, now seen corresponding path program 13 times [2024-12-02 07:20:11,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:11,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002998577] [2024-12-02 07:20:11,141 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:20:11,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:20:11,381 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 07:20:11,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:11,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002998577] [2024-12-02 07:20:11,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002998577] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:11,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:11,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:20:11,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908047842] [2024-12-02 07:20:11,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:11,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:20:11,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:11,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:20:11,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:20:12,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:20:12,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 707 transitions, 7360 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:12,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:12,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:20:12,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:16,357 INFO L124 PetriNetUnfolderBase]: 4878/17940 cut-off events. [2024-12-02 07:20:16,357 INFO L125 PetriNetUnfolderBase]: For 86273/87475 co-relation queries the response was YES. [2024-12-02 07:20:16,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66960 conditions, 17940 events. 4878/17940 cut-off events. For 86273/87475 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 193053 event pairs, 477 based on Foata normal form. 240/17934 useless extension candidates. Maximal degree in co-relation 66600. Up to 2809 conditions per place. [2024-12-02 07:20:16,564 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 214 selfloop transitions, 79 changer transitions 0/775 dead transitions. [2024-12-02 07:20:16,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 775 transitions, 8654 flow [2024-12-02 07:20:16,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:20:16,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:20:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1474 transitions. [2024-12-02 07:20:16,565 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8852852852852853 [2024-12-02 07:20:16,565 INFO L175 Difference]: Start difference. First operand has 432 places, 707 transitions, 7360 flow. Second operand 9 states and 1474 transitions. [2024-12-02 07:20:16,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 775 transitions, 8654 flow [2024-12-02 07:20:16,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 775 transitions, 8486 flow, removed 13 selfloop flow, removed 5 redundant places. [2024-12-02 07:20:16,995 INFO L231 Difference]: Finished difference. Result has 439 places, 715 transitions, 7562 flow [2024-12-02 07:20:16,996 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=7200, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7562, PETRI_PLACES=439, PETRI_TRANSITIONS=715} [2024-12-02 07:20:16,996 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 257 predicate places. [2024-12-02 07:20:16,996 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 715 transitions, 7562 flow [2024-12-02 07:20:16,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:16,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:20:16,997 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 07:20:16,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:20:16,997 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:20:16,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:16,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1150792799, now seen corresponding path program 14 times [2024-12-02 07:20:16,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:16,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926450656] [2024-12-02 07:20:16,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:20:16,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:17,010 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:20:17,010 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:20:17,159 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 07:20:17,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:17,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926450656] [2024-12-02 07:20:17,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926450656] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:17,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:17,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:20:17,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54016010] [2024-12-02 07:20:17,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:17,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:20:17,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:17,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:20:17,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:20:17,889 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:20:17,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 715 transitions, 7562 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:17,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:17,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:20:17,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:22,413 INFO L124 PetriNetUnfolderBase]: 4597/17149 cut-off events. [2024-12-02 07:20:22,413 INFO L125 PetriNetUnfolderBase]: For 82053/83214 co-relation queries the response was YES. [2024-12-02 07:20:22,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63833 conditions, 17149 events. 4597/17149 cut-off events. For 82053/83214 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 182960 event pairs, 438 based on Foata normal form. 217/17124 useless extension candidates. Maximal degree in co-relation 63469. Up to 2650 conditions per place. [2024-12-02 07:20:22,608 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 210 selfloop transitions, 80 changer transitions 0/772 dead transitions. [2024-12-02 07:20:22,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 772 transitions, 8676 flow [2024-12-02 07:20:22,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:20:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:20:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1476 transitions. [2024-12-02 07:20:22,610 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8864864864864865 [2024-12-02 07:20:22,610 INFO L175 Difference]: Start difference. First operand has 439 places, 715 transitions, 7562 flow. Second operand 9 states and 1476 transitions. [2024-12-02 07:20:22,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 772 transitions, 8676 flow [2024-12-02 07:20:23,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 772 transitions, 8520 flow, removed 22 selfloop flow, removed 4 redundant places. [2024-12-02 07:20:23,032 INFO L231 Difference]: Finished difference. Result has 446 places, 721 transitions, 7720 flow [2024-12-02 07:20:23,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=7338, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7720, PETRI_PLACES=446, PETRI_TRANSITIONS=721} [2024-12-02 07:20:23,033 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 264 predicate places. [2024-12-02 07:20:23,033 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 721 transitions, 7720 flow [2024-12-02 07:20:23,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:23,033 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:20:23,033 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 07:20:23,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:20:23,033 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:20:23,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:23,034 INFO L85 PathProgramCache]: Analyzing trace with hash 256291217, now seen corresponding path program 15 times [2024-12-02 07:20:23,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:23,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781840260] [2024-12-02 07:20:23,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:20:23,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:23,048 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 07:20:23,048 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:20:23,259 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 07:20:23,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:23,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781840260] [2024-12-02 07:20:23,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781840260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:23,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:23,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:20:23,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914144811] [2024-12-02 07:20:23,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:23,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:20:23,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:23,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:20:23,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:20:24,125 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:20:24,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 721 transitions, 7720 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:24,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:24,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:20:24,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:28,086 INFO L124 PetriNetUnfolderBase]: 4313/16203 cut-off events. [2024-12-02 07:20:28,086 INFO L125 PetriNetUnfolderBase]: For 76853/77909 co-relation queries the response was YES. [2024-12-02 07:20:28,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60049 conditions, 16203 events. 4313/16203 cut-off events. For 76853/77909 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 170695 event pairs, 450 based on Foata normal form. 203/16172 useless extension candidates. Maximal degree in co-relation 59682. Up to 2479 conditions per place. [2024-12-02 07:20:28,260 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 216 selfloop transitions, 77 changer transitions 0/775 dead transitions. [2024-12-02 07:20:28,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 775 transitions, 8814 flow [2024-12-02 07:20:28,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:20:28,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:20:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1478 transitions. [2024-12-02 07:20:28,261 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8876876876876877 [2024-12-02 07:20:28,261 INFO L175 Difference]: Start difference. First operand has 446 places, 721 transitions, 7720 flow. Second operand 9 states and 1478 transitions. [2024-12-02 07:20:28,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 775 transitions, 8814 flow [2024-12-02 07:20:28,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 775 transitions, 8584 flow, removed 48 selfloop flow, removed 5 redundant places. [2024-12-02 07:20:28,646 INFO L231 Difference]: Finished difference. Result has 452 places, 727 transitions, 7787 flow [2024-12-02 07:20:28,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=7428, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7787, PETRI_PLACES=452, PETRI_TRANSITIONS=727} [2024-12-02 07:20:28,646 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 270 predicate places. [2024-12-02 07:20:28,646 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 727 transitions, 7787 flow [2024-12-02 07:20:28,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:28,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:20:28,647 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 07:20:28,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 07:20:28,647 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:20:28,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:28,648 INFO L85 PathProgramCache]: Analyzing trace with hash -969063951, now seen corresponding path program 16 times [2024-12-02 07:20:28,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:28,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629610289] [2024-12-02 07:20:28,648 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:20:28,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:28,668 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:20:28,669 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:20:30,033 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 07:20:30,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:30,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629610289] [2024-12-02 07:20:30,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629610289] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:30,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:30,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:20:30,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323720984] [2024-12-02 07:20:30,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:30,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:20:30,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:30,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:20:30,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:20:32,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 185 [2024-12-02 07:20:32,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 727 transitions, 7787 flow. Second operand has 16 states, 16 states have (on average 134.4375) internal successors, (2151), 16 states have internal predecessors, (2151), 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 07:20:32,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:32,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 185 [2024-12-02 07:20:32,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:38,711 INFO L124 PetriNetUnfolderBase]: 6961/21047 cut-off events. [2024-12-02 07:20:38,711 INFO L125 PetriNetUnfolderBase]: For 135182/136008 co-relation queries the response was YES. [2024-12-02 07:20:38,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90642 conditions, 21047 events. 6961/21047 cut-off events. For 135182/136008 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 211530 event pairs, 1573 based on Foata normal form. 341/21089 useless extension candidates. Maximal degree in co-relation 90272. Up to 5793 conditions per place. [2024-12-02 07:20:38,995 INFO L140 encePairwiseOnDemand]: 153/185 looper letters, 786 selfloop transitions, 310 changer transitions 2/1301 dead transitions. [2024-12-02 07:20:38,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 1301 transitions, 16379 flow [2024-12-02 07:20:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 07:20:38,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 07:20:38,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2682 transitions. [2024-12-02 07:20:38,998 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8054054054054054 [2024-12-02 07:20:38,998 INFO L175 Difference]: Start difference. First operand has 452 places, 727 transitions, 7787 flow. Second operand 18 states and 2682 transitions. [2024-12-02 07:20:38,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 1301 transitions, 16379 flow [2024-12-02 07:20:39,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 1301 transitions, 16096 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-12-02 07:20:39,550 INFO L231 Difference]: Finished difference. Result has 479 places, 883 transitions, 11251 flow [2024-12-02 07:20:39,551 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=7610, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11251, PETRI_PLACES=479, PETRI_TRANSITIONS=883} [2024-12-02 07:20:39,551 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 297 predicate places. [2024-12-02 07:20:39,551 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 883 transitions, 11251 flow [2024-12-02 07:20:39,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.4375) internal successors, (2151), 16 states have internal predecessors, (2151), 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 07:20:39,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:20:39,552 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 07:20:39,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:20:39,552 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:20:39,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:39,553 INFO L85 PathProgramCache]: Analyzing trace with hash 854034027, now seen corresponding path program 17 times [2024-12-02 07:20:39,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:39,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416821761] [2024-12-02 07:20:39,553 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:20:39,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:39,568 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:20:39,568 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:20:40,164 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-12-02 07:20:40,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:40,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416821761] [2024-12-02 07:20:40,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416821761] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:20:40,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179230823] [2024-12-02 07:20:40,164 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:20:40,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:20:40,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:20:40,166 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:20:40,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 07:20:40,352 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:20:40,352 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:20:40,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 07:20:40,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:20:40,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 07:20:40,647 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 07:20:40,647 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:20:40,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179230823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:40,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:20:40,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-12-02 07:20:40,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79606009] [2024-12-02 07:20:40,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:40,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:20:40,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:40,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:20:40,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:20:41,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:20:41,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 883 transitions, 11251 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:20:41,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:41,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:20:41,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:46,220 INFO L124 PetriNetUnfolderBase]: 4658/17484 cut-off events. [2024-12-02 07:20:46,220 INFO L125 PetriNetUnfolderBase]: For 108842/110123 co-relation queries the response was YES. [2024-12-02 07:20:46,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69404 conditions, 17484 events. 4658/17484 cut-off events. For 108842/110123 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 187284 event pairs, 483 based on Foata normal form. 230/17457 useless extension candidates. Maximal degree in co-relation 69018. Up to 2715 conditions per place. [2024-12-02 07:20:46,409 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 262 selfloop transitions, 76 changer transitions 0/948 dead transitions. [2024-12-02 07:20:46,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 948 transitions, 12815 flow [2024-12-02 07:20:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:20:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:20:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1634 transitions. [2024-12-02 07:20:46,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8832432432432432 [2024-12-02 07:20:46,411 INFO L175 Difference]: Start difference. First operand has 479 places, 883 transitions, 11251 flow. Second operand 10 states and 1634 transitions. [2024-12-02 07:20:46,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 948 transitions, 12815 flow [2024-12-02 07:20:47,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 948 transitions, 12500 flow, removed 157 selfloop flow, removed 1 redundant places. [2024-12-02 07:20:47,239 INFO L231 Difference]: Finished difference. Result has 491 places, 898 transitions, 11513 flow [2024-12-02 07:20:47,239 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=11052, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=883, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=810, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11513, PETRI_PLACES=491, PETRI_TRANSITIONS=898} [2024-12-02 07:20:47,239 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 309 predicate places. [2024-12-02 07:20:47,239 INFO L471 AbstractCegarLoop]: Abstraction has has 491 places, 898 transitions, 11513 flow [2024-12-02 07:20:47,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:20:47,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:20:47,240 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 07:20:47,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 07:20:47,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 07:20:47,440 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:20:47,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:47,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1482191757, now seen corresponding path program 18 times [2024-12-02 07:20:47,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:47,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412180051] [2024-12-02 07:20:47,441 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:20:47,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:47,458 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 07:20:47,458 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:20:47,635 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 07:20:47,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:47,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412180051] [2024-12-02 07:20:47,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412180051] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:47,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:47,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:20:47,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498628755] [2024-12-02 07:20:47,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:47,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:20:47,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:47,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:20:47,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:20:48,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:20:48,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 898 transitions, 11513 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:48,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:48,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:20:48,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:53,573 INFO L124 PetriNetUnfolderBase]: 4612/17388 cut-off events. [2024-12-02 07:20:53,573 INFO L125 PetriNetUnfolderBase]: For 105869/107108 co-relation queries the response was YES. [2024-12-02 07:20:53,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68633 conditions, 17388 events. 4612/17388 cut-off events. For 105869/107108 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 186317 event pairs, 489 based on Foata normal form. 293/17430 useless extension candidates. Maximal degree in co-relation 68242. Up to 2705 conditions per place. [2024-12-02 07:20:53,745 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 209 selfloop transitions, 126 changer transitions 0/917 dead transitions. [2024-12-02 07:20:53,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 917 transitions, 12181 flow [2024-12-02 07:20:53,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:20:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:20:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1471 transitions. [2024-12-02 07:20:53,746 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8834834834834835 [2024-12-02 07:20:53,746 INFO L175 Difference]: Start difference. First operand has 491 places, 898 transitions, 11513 flow. Second operand 9 states and 1471 transitions. [2024-12-02 07:20:53,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 917 transitions, 12181 flow [2024-12-02 07:20:54,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 917 transitions, 12028 flow, removed 25 selfloop flow, removed 5 redundant places. [2024-12-02 07:20:54,363 INFO L231 Difference]: Finished difference. Result has 496 places, 868 transitions, 11140 flow [2024-12-02 07:20:54,363 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=10768, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=864, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=740, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11140, PETRI_PLACES=496, PETRI_TRANSITIONS=868} [2024-12-02 07:20:54,363 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 314 predicate places. [2024-12-02 07:20:54,364 INFO L471 AbstractCegarLoop]: Abstraction has has 496 places, 868 transitions, 11140 flow [2024-12-02 07:20:54,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:54,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:20:54,364 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 07:20:54,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:20:54,364 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:20:54,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:54,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1318107451, now seen corresponding path program 19 times [2024-12-02 07:20:54,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:54,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22362164] [2024-12-02 07:20:54,366 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:20:54,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:20:54,584 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 07:20:54,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:54,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22362164] [2024-12-02 07:20:54,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22362164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:20:54,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:20:54,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:20:54,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868002727] [2024-12-02 07:20:54,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:20:54,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:20:54,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:54,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:20:54,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:20:55,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:20:55,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 868 transitions, 11140 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:20:55,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:20:55,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:20:55,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:20:59,822 INFO L124 PetriNetUnfolderBase]: 4932/18466 cut-off events. [2024-12-02 07:20:59,822 INFO L125 PetriNetUnfolderBase]: For 114267/115525 co-relation queries the response was YES. [2024-12-02 07:21:00,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73569 conditions, 18466 events. 4932/18466 cut-off events. For 114267/115525 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 200583 event pairs, 490 based on Foata normal form. 217/18425 useless extension candidates. Maximal degree in co-relation 73177. Up to 2900 conditions per place. [2024-12-02 07:21:00,096 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 275 selfloop transitions, 77 changer transitions 0/934 dead transitions. [2024-12-02 07:21:00,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 934 transitions, 12743 flow [2024-12-02 07:21:00,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:21:00,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:21:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1485 transitions. [2024-12-02 07:21:00,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2024-12-02 07:21:00,097 INFO L175 Difference]: Start difference. First operand has 496 places, 868 transitions, 11140 flow. Second operand 9 states and 1485 transitions. [2024-12-02 07:21:00,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 934 transitions, 12743 flow [2024-12-02 07:21:00,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 934 transitions, 12470 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-12-02 07:21:00,998 INFO L231 Difference]: Finished difference. Result has 503 places, 887 transitions, 11508 flow [2024-12-02 07:21:00,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=10909, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11508, PETRI_PLACES=503, PETRI_TRANSITIONS=887} [2024-12-02 07:21:00,999 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 321 predicate places. [2024-12-02 07:21:00,999 INFO L471 AbstractCegarLoop]: Abstraction has has 503 places, 887 transitions, 11508 flow [2024-12-02 07:21:00,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:00,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:01,000 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 07:21:01,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:21:01,000 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:21:01,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:01,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1892089449, now seen corresponding path program 20 times [2024-12-02 07:21:01,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:01,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123787156] [2024-12-02 07:21:01,001 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:21:01,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:01,019 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:21:01,019 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:21:01,238 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 07:21:01,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:01,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123787156] [2024-12-02 07:21:01,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123787156] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:01,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:01,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:21:01,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31025398] [2024-12-02 07:21:01,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:01,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:21:01,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:01,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:21:01,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:21:02,036 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:21:02,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 887 transitions, 11508 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:02,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:02,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:21:02,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:07,317 INFO L124 PetriNetUnfolderBase]: 5229/19522 cut-off events. [2024-12-02 07:21:07,317 INFO L125 PetriNetUnfolderBase]: For 123753/125024 co-relation queries the response was YES. [2024-12-02 07:21:07,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78250 conditions, 19522 events. 5229/19522 cut-off events. For 123753/125024 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 214847 event pairs, 521 based on Foata normal form. 259/19525 useless extension candidates. Maximal degree in co-relation 77854. Up to 3095 conditions per place. [2024-12-02 07:21:07,586 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 254 selfloop transitions, 122 changer transitions 0/958 dead transitions. [2024-12-02 07:21:07,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 958 transitions, 13284 flow [2024-12-02 07:21:07,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:21:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:21:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-12-02 07:21:07,587 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-12-02 07:21:07,587 INFO L175 Difference]: Start difference. First operand has 503 places, 887 transitions, 11508 flow. Second operand 9 states and 1475 transitions. [2024-12-02 07:21:07,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 958 transitions, 13284 flow [2024-12-02 07:21:08,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 958 transitions, 13082 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-12-02 07:21:08,379 INFO L231 Difference]: Finished difference. Result has 511 places, 906 transitions, 12078 flow [2024-12-02 07:21:08,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=11326, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=887, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=769, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12078, PETRI_PLACES=511, PETRI_TRANSITIONS=906} [2024-12-02 07:21:08,380 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 329 predicate places. [2024-12-02 07:21:08,380 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 906 transitions, 12078 flow [2024-12-02 07:21:08,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:08,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:08,380 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 07:21:08,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 07:21:08,380 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:21:08,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:08,381 INFO L85 PathProgramCache]: Analyzing trace with hash -493762345, now seen corresponding path program 21 times [2024-12-02 07:21:08,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:08,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237095726] [2024-12-02 07:21:08,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:21:08,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:08,394 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 07:21:08,394 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:21:08,546 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 07:21:08,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:08,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237095726] [2024-12-02 07:21:08,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237095726] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:08,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:08,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:21:08,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224616024] [2024-12-02 07:21:08,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:08,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:21:08,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:08,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:21:08,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:21:09,176 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:21:09,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 906 transitions, 12078 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:09,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:09,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:21:09,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:14,425 INFO L124 PetriNetUnfolderBase]: 5239/19549 cut-off events. [2024-12-02 07:21:14,425 INFO L125 PetriNetUnfolderBase]: For 128507/129909 co-relation queries the response was YES. [2024-12-02 07:21:14,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78947 conditions, 19549 events. 5239/19549 cut-off events. For 128507/129909 co-relation queries the response was YES. Maximal size of possible extension queue 622. Compared 215457 event pairs, 510 based on Foata normal form. 237/19520 useless extension candidates. Maximal degree in co-relation 78547. Up to 3107 conditions per place. [2024-12-02 07:21:14,737 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 298 selfloop transitions, 78 changer transitions 0/958 dead transitions. [2024-12-02 07:21:14,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 958 transitions, 13492 flow [2024-12-02 07:21:14,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:21:14,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:21:14,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1487 transitions. [2024-12-02 07:21:14,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.893093093093093 [2024-12-02 07:21:14,738 INFO L175 Difference]: Start difference. First operand has 511 places, 906 transitions, 12078 flow. Second operand 9 states and 1487 transitions. [2024-12-02 07:21:14,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 958 transitions, 13492 flow [2024-12-02 07:21:15,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 958 transitions, 13244 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-12-02 07:21:15,725 INFO L231 Difference]: Finished difference. Result has 518 places, 915 transitions, 12216 flow [2024-12-02 07:21:15,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=11838, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=831, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12216, PETRI_PLACES=518, PETRI_TRANSITIONS=915} [2024-12-02 07:21:15,726 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 336 predicate places. [2024-12-02 07:21:15,726 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 915 transitions, 12216 flow [2024-12-02 07:21:15,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:15,727 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:15,727 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 07:21:15,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 07:21:15,727 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:21:15,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:15,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1076833141, now seen corresponding path program 22 times [2024-12-02 07:21:15,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:15,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492077319] [2024-12-02 07:21:15,728 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:21:15,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:15,744 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:21:15,744 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:21:16,467 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 07:21:16,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:16,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492077319] [2024-12-02 07:21:16,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492077319] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:16,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:16,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:21:16,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029395343] [2024-12-02 07:21:16,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:16,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:21:16,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:16,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:21:16,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:21:17,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 185 [2024-12-02 07:21:17,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 915 transitions, 12216 flow. Second operand has 15 states, 15 states have (on average 135.46666666666667) internal successors, (2032), 15 states have internal predecessors, (2032), 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 07:21:17,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:17,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 185 [2024-12-02 07:21:17,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:25,866 INFO L124 PetriNetUnfolderBase]: 8348/25374 cut-off events. [2024-12-02 07:21:25,866 INFO L125 PetriNetUnfolderBase]: For 232644/234766 co-relation queries the response was YES. [2024-12-02 07:21:26,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119482 conditions, 25374 events. 8348/25374 cut-off events. For 232644/234766 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 267745 event pairs, 1659 based on Foata normal form. 680/25734 useless extension candidates. Maximal degree in co-relation 119079. Up to 5477 conditions per place. [2024-12-02 07:21:26,224 INFO L140 encePairwiseOnDemand]: 154/185 looper letters, 1095 selfloop transitions, 378 changer transitions 2/1680 dead transitions. [2024-12-02 07:21:26,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1680 transitions, 23849 flow [2024-12-02 07:21:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 07:21:26,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-12-02 07:21:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3670 transitions. [2024-12-02 07:21:26,226 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7935135135135135 [2024-12-02 07:21:26,226 INFO L175 Difference]: Start difference. First operand has 518 places, 915 transitions, 12216 flow. Second operand 25 states and 3670 transitions. [2024-12-02 07:21:26,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 1680 transitions, 23849 flow [2024-12-02 07:21:27,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 1680 transitions, 23636 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-12-02 07:21:27,576 INFO L231 Difference]: Finished difference. Result has 556 places, 1064 transitions, 16026 flow [2024-12-02 07:21:27,576 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=12032, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=16026, PETRI_PLACES=556, PETRI_TRANSITIONS=1064} [2024-12-02 07:21:27,577 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 374 predicate places. [2024-12-02 07:21:27,577 INFO L471 AbstractCegarLoop]: Abstraction has has 556 places, 1064 transitions, 16026 flow [2024-12-02 07:21:27,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 135.46666666666667) internal successors, (2032), 15 states have internal predecessors, (2032), 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 07:21:27,577 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:27,577 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 07:21:27,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 07:21:27,577 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:21:27,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:27,578 INFO L85 PathProgramCache]: Analyzing trace with hash -465809549, now seen corresponding path program 23 times [2024-12-02 07:21:27,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:27,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002679434] [2024-12-02 07:21:27,579 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:21:27,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:27,594 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:21:27,594 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:21:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-12-02 07:21:27,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:27,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002679434] [2024-12-02 07:21:27,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002679434] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:21:27,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797837101] [2024-12-02 07:21:27,929 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:21:27,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:21:27,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:21:27,930 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:21:27,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 07:21:28,106 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:21:28,106 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:21:28,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 07:21:28,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:21:28,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 07:21:28,359 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 07:21:28,359 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:21:28,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797837101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:28,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:21:28,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-12-02 07:21:28,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511465582] [2024-12-02 07:21:28,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:28,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:21:28,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:28,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:21:28,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:21:29,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:21:29,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1064 transitions, 16026 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:21:29,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:29,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:21:29,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:35,444 INFO L124 PetriNetUnfolderBase]: 5592/20680 cut-off events. [2024-12-02 07:21:35,445 INFO L125 PetriNetUnfolderBase]: For 178783/180580 co-relation queries the response was YES. [2024-12-02 07:21:35,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89195 conditions, 20680 events. 5592/20680 cut-off events. For 178783/180580 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 230286 event pairs, 519 based on Foata normal form. 374/20782 useless extension candidates. Maximal degree in co-relation 88774. Up to 3282 conditions per place. [2024-12-02 07:21:35,827 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 329 selfloop transitions, 104 changer transitions 0/1119 dead transitions. [2024-12-02 07:21:35,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 1119 transitions, 17616 flow [2024-12-02 07:21:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:21:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:21:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1635 transitions. [2024-12-02 07:21:35,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8837837837837837 [2024-12-02 07:21:35,828 INFO L175 Difference]: Start difference. First operand has 556 places, 1064 transitions, 16026 flow. Second operand 10 states and 1635 transitions. [2024-12-02 07:21:35,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 1119 transitions, 17616 flow [2024-12-02 07:21:37,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 1119 transitions, 16965 flow, removed 191 selfloop flow, removed 5 redundant places. [2024-12-02 07:21:37,467 INFO L231 Difference]: Finished difference. Result has 564 places, 1072 transitions, 15867 flow [2024-12-02 07:21:37,467 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15388, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1064, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15867, PETRI_PLACES=564, PETRI_TRANSITIONS=1072} [2024-12-02 07:21:37,468 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 382 predicate places. [2024-12-02 07:21:37,468 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 1072 transitions, 15867 flow [2024-12-02 07:21:37,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:21:37,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:37,468 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 07:21:37,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 07:21:37,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:21:37,668 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:21:37,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:37,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2128441795, now seen corresponding path program 24 times [2024-12-02 07:21:37,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:37,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895291792] [2024-12-02 07:21:37,670 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:21:37,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:37,684 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 07:21:37,684 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:21:37,840 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 07:21:37,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:37,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895291792] [2024-12-02 07:21:37,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895291792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:37,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:37,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:21:37,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584304601] [2024-12-02 07:21:37,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:37,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:21:37,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:37,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:21:37,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:21:38,551 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:21:38,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 1072 transitions, 15867 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:38,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:38,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:21:38,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:44,238 INFO L124 PetriNetUnfolderBase]: 5305/19853 cut-off events. [2024-12-02 07:21:44,238 INFO L125 PetriNetUnfolderBase]: For 165363/166968 co-relation queries the response was YES. [2024-12-02 07:21:44,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84646 conditions, 19853 events. 5305/19853 cut-off events. For 165363/166968 co-relation queries the response was YES. Maximal size of possible extension queue 621. Compared 219271 event pairs, 508 based on Foata normal form. 314/19905 useless extension candidates. Maximal degree in co-relation 84221. Up to 3090 conditions per place. [2024-12-02 07:21:44,610 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 333 selfloop transitions, 93 changer transitions 0/1112 dead transitions. [2024-12-02 07:21:44,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 1112 transitions, 17142 flow [2024-12-02 07:21:44,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:21:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:21:44,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1484 transitions. [2024-12-02 07:21:44,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8912912912912913 [2024-12-02 07:21:44,611 INFO L175 Difference]: Start difference. First operand has 564 places, 1072 transitions, 15867 flow. Second operand 9 states and 1484 transitions. [2024-12-02 07:21:44,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 1112 transitions, 17142 flow [2024-12-02 07:21:46,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 1112 transitions, 16897 flow, removed 52 selfloop flow, removed 5 redundant places. [2024-12-02 07:21:46,130 INFO L231 Difference]: Finished difference. Result has 570 places, 1074 transitions, 15895 flow [2024-12-02 07:21:46,131 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15475, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=975, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15895, PETRI_PLACES=570, PETRI_TRANSITIONS=1074} [2024-12-02 07:21:46,131 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 388 predicate places. [2024-12-02 07:21:46,131 INFO L471 AbstractCegarLoop]: Abstraction has has 570 places, 1074 transitions, 15895 flow [2024-12-02 07:21:46,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:46,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:46,132 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 07:21:46,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 07:21:46,132 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:21:46,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:46,133 INFO L85 PathProgramCache]: Analyzing trace with hash -949695921, now seen corresponding path program 25 times [2024-12-02 07:21:46,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:46,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576631118] [2024-12-02 07:21:46,133 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:21:46,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:46,467 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 07:21:46,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:46,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576631118] [2024-12-02 07:21:46,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576631118] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:46,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:46,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:21:46,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208312830] [2024-12-02 07:21:46,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:46,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:21:46,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:46,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:21:46,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:21:47,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:21:47,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 1074 transitions, 15895 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:47,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:47,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:21:47,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:53,170 INFO L124 PetriNetUnfolderBase]: 5006/18986 cut-off events. [2024-12-02 07:21:53,170 INFO L125 PetriNetUnfolderBase]: For 153945/155514 co-relation queries the response was YES. [2024-12-02 07:21:53,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80320 conditions, 18986 events. 5006/18986 cut-off events. For 153945/155514 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 207889 event pairs, 499 based on Foata normal form. 300/19035 useless extension candidates. Maximal degree in co-relation 79893. Up to 2918 conditions per place. [2024-12-02 07:21:53,522 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 314 selfloop transitions, 112 changer transitions 0/1096 dead transitions. [2024-12-02 07:21:53,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 1096 transitions, 16802 flow [2024-12-02 07:21:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:21:53,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:21:53,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1480 transitions. [2024-12-02 07:21:53,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-12-02 07:21:53,524 INFO L175 Difference]: Start difference. First operand has 570 places, 1074 transitions, 15895 flow. Second operand 9 states and 1480 transitions. [2024-12-02 07:21:53,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 1096 transitions, 16802 flow [2024-12-02 07:21:54,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 1096 transitions, 16539 flow, removed 51 selfloop flow, removed 5 redundant places. [2024-12-02 07:21:54,930 INFO L231 Difference]: Finished difference. Result has 576 places, 1060 transitions, 15522 flow [2024-12-02 07:21:54,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15077, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15522, PETRI_PLACES=576, PETRI_TRANSITIONS=1060} [2024-12-02 07:21:54,930 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 394 predicate places. [2024-12-02 07:21:54,930 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 1060 transitions, 15522 flow [2024-12-02 07:21:54,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:54,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:54,931 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 07:21:54,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 07:21:54,931 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:21:54,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:54,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1791972295, now seen corresponding path program 26 times [2024-12-02 07:21:54,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:54,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001669393] [2024-12-02 07:21:54,932 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:21:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:54,943 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:21:54,943 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:21:55,095 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 07:21:55,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:55,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001669393] [2024-12-02 07:21:55,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001669393] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:55,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:55,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:21:55,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054855903] [2024-12-02 07:21:55,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:55,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:21:55,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:55,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:21:55,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:21:55,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:21:55,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 1060 transitions, 15522 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:21:55,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:55,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:21:55,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:01,133 INFO L124 PetriNetUnfolderBase]: 5006/18997 cut-off events. [2024-12-02 07:22:01,133 INFO L125 PetriNetUnfolderBase]: For 153546/155083 co-relation queries the response was YES. [2024-12-02 07:22:01,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80397 conditions, 18997 events. 5006/18997 cut-off events. For 153546/155083 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 208312 event pairs, 494 based on Foata normal form. 336/19081 useless extension candidates. Maximal degree in co-relation 79967. Up to 2902 conditions per place. [2024-12-02 07:22:01,475 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 319 selfloop transitions, 120 changer transitions 0/1109 dead transitions. [2024-12-02 07:22:01,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1109 transitions, 17077 flow [2024-12-02 07:22:01,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:22:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:22:01,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2024-12-02 07:22:01,478 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8882882882882883 [2024-12-02 07:22:01,478 INFO L175 Difference]: Start difference. First operand has 576 places, 1060 transitions, 15522 flow. Second operand 9 states and 1479 transitions. [2024-12-02 07:22:01,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1109 transitions, 17077 flow [2024-12-02 07:22:02,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 1109 transitions, 16826 flow, removed 18 selfloop flow, removed 5 redundant places. [2024-12-02 07:22:02,865 INFO L231 Difference]: Finished difference. Result has 583 places, 1069 transitions, 15852 flow [2024-12-02 07:22:02,866 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15287, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15852, PETRI_PLACES=583, PETRI_TRANSITIONS=1069} [2024-12-02 07:22:02,866 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 401 predicate places. [2024-12-02 07:22:02,866 INFO L471 AbstractCegarLoop]: Abstraction has has 583 places, 1069 transitions, 15852 flow [2024-12-02 07:22:02,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:02,867 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:02,867 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 07:22:02,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 07:22:02,867 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:22:02,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash -613788247, now seen corresponding path program 27 times [2024-12-02 07:22:02,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:02,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064082447] [2024-12-02 07:22:02,868 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:22:02,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:02,881 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 07:22:02,881 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:22:03,096 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 07:22:03,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:03,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064082447] [2024-12-02 07:22:03,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064082447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:03,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:03,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:03,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882658128] [2024-12-02 07:22:03,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:03,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:03,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:03,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:03,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:03,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:22:03,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1069 transitions, 15852 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:03,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:03,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:22:03,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:09,664 INFO L124 PetriNetUnfolderBase]: 5013/19073 cut-off events. [2024-12-02 07:22:09,664 INFO L125 PetriNetUnfolderBase]: For 158153/159709 co-relation queries the response was YES. [2024-12-02 07:22:10,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81099 conditions, 19073 events. 5013/19073 cut-off events. For 158153/159709 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 209380 event pairs, 489 based on Foata normal form. 331/19155 useless extension candidates. Maximal degree in co-relation 80665. Up to 2909 conditions per place. [2024-12-02 07:22:10,155 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 309 selfloop transitions, 136 changer transitions 0/1115 dead transitions. [2024-12-02 07:22:10,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1115 transitions, 17429 flow [2024-12-02 07:22:10,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:22:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:22:10,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2024-12-02 07:22:10,157 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8882882882882883 [2024-12-02 07:22:10,157 INFO L175 Difference]: Start difference. First operand has 583 places, 1069 transitions, 15852 flow. Second operand 9 states and 1479 transitions. [2024-12-02 07:22:10,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 1115 transitions, 17429 flow [2024-12-02 07:22:11,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1115 transitions, 17086 flow, removed 88 selfloop flow, removed 4 redundant places. [2024-12-02 07:22:11,397 INFO L231 Difference]: Finished difference. Result has 590 places, 1079 transitions, 16179 flow [2024-12-02 07:22:11,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15605, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16179, PETRI_PLACES=590, PETRI_TRANSITIONS=1079} [2024-12-02 07:22:11,399 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 408 predicate places. [2024-12-02 07:22:11,399 INFO L471 AbstractCegarLoop]: Abstraction has has 590 places, 1079 transitions, 16179 flow [2024-12-02 07:22:11,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:11,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:11,399 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 07:22:11,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 07:22:11,400 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:22:11,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:11,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1760594503, now seen corresponding path program 28 times [2024-12-02 07:22:11,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:11,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479803431] [2024-12-02 07:22:11,402 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:22:11,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:11,426 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:22:11,426 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:22:11,826 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 07:22:11,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:11,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479803431] [2024-12-02 07:22:11,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479803431] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:11,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:11,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:22:11,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73087743] [2024-12-02 07:22:11,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:11,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:22:11,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:11,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:22:11,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:22:12,821 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:22:12,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 1079 transitions, 16179 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:22:12,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:12,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:22:12,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:18,556 INFO L124 PetriNetUnfolderBase]: 4718/18213 cut-off events. [2024-12-02 07:22:18,556 INFO L125 PetriNetUnfolderBase]: For 148251/149739 co-relation queries the response was YES. [2024-12-02 07:22:18,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77124 conditions, 18213 events. 4718/18213 cut-off events. For 148251/149739 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 198397 event pairs, 474 based on Foata normal form. 307/18274 useless extension candidates. Maximal degree in co-relation 76687. Up to 2749 conditions per place. [2024-12-02 07:22:18,915 INFO L140 encePairwiseOnDemand]: 168/185 looper letters, 329 selfloop transitions, 112 changer transitions 0/1111 dead transitions. [2024-12-02 07:22:18,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 1111 transitions, 17332 flow [2024-12-02 07:22:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:22:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:22:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1634 transitions. [2024-12-02 07:22:18,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8832432432432432 [2024-12-02 07:22:18,917 INFO L175 Difference]: Start difference. First operand has 590 places, 1079 transitions, 16179 flow. Second operand 10 states and 1634 transitions. [2024-12-02 07:22:18,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 1111 transitions, 17332 flow [2024-12-02 07:22:20,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 594 places, 1111 transitions, 17074 flow, removed 26 selfloop flow, removed 5 redundant places. [2024-12-02 07:22:20,231 INFO L231 Difference]: Finished difference. Result has 597 places, 1080 transitions, 16194 flow [2024-12-02 07:22:20,232 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15698, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1071, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=962, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16194, PETRI_PLACES=597, PETRI_TRANSITIONS=1080} [2024-12-02 07:22:20,232 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 415 predicate places. [2024-12-02 07:22:20,232 INFO L471 AbstractCegarLoop]: Abstraction has has 597 places, 1080 transitions, 16194 flow [2024-12-02 07:22:20,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:22:20,232 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:20,232 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 07:22:20,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 07:22:20,233 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:22:20,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:20,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1411376831, now seen corresponding path program 1 times [2024-12-02 07:22:20,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:20,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528836978] [2024-12-02 07:22:20,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:20,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:20,438 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 07:22:20,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:20,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528836978] [2024-12-02 07:22:20,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528836978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:20,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:20,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:20,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817476572] [2024-12-02 07:22:20,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:20,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:20,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:20,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:20,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:20,955 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:22:20,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 1080 transitions, 16194 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:20,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:20,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:22:20,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:26,441 INFO L124 PetriNetUnfolderBase]: 4396/17195 cut-off events. [2024-12-02 07:22:26,442 INFO L125 PetriNetUnfolderBase]: For 136161/137487 co-relation queries the response was YES. [2024-12-02 07:22:26,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72219 conditions, 17195 events. 4396/17195 cut-off events. For 136161/137487 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 184973 event pairs, 475 based on Foata normal form. 274/17232 useless extension candidates. Maximal degree in co-relation 71778. Up to 2571 conditions per place. [2024-12-02 07:22:26,806 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 292 selfloop transitions, 127 changer transitions 0/1015 dead transitions. [2024-12-02 07:22:26,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 1015 transitions, 15473 flow [2024-12-02 07:22:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:22:26,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:22:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-12-02 07:22:26,808 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-12-02 07:22:26,808 INFO L175 Difference]: Start difference. First operand has 597 places, 1080 transitions, 16194 flow. Second operand 9 states and 1475 transitions. [2024-12-02 07:22:26,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 1015 transitions, 15473 flow [2024-12-02 07:22:28,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 1015 transitions, 14816 flow, removed 101 selfloop flow, removed 21 redundant places. [2024-12-02 07:22:28,091 INFO L231 Difference]: Finished difference. Result has 574 places, 982 transitions, 13926 flow [2024-12-02 07:22:28,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=13672, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=855, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13926, PETRI_PLACES=574, PETRI_TRANSITIONS=982} [2024-12-02 07:22:28,092 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 392 predicate places. [2024-12-02 07:22:28,092 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 982 transitions, 13926 flow [2024-12-02 07:22:28,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:28,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:28,093 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 07:22:28,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 07:22:28,093 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:22:28,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:28,095 INFO L85 PathProgramCache]: Analyzing trace with hash -666535781, now seen corresponding path program 29 times [2024-12-02 07:22:28,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:28,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115129652] [2024-12-02 07:22:28,096 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:22:28,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:28,112 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:22:28,112 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:22:28,432 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-12-02 07:22:28,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:28,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115129652] [2024-12-02 07:22:28,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115129652] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:22:28,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071863810] [2024-12-02 07:22:28,432 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:22:28,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:22:28,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:22:28,434 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:22:28,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 07:22:28,625 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:22:28,625 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:22:28,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 07:22:28,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:28,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 07:22:28,871 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 07:22:28,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:28,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071863810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:28,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:22:28,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-12-02 07:22:28,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83840267] [2024-12-02 07:22:28,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:28,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:22:28,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:28,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:22:28,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:22:29,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:22:29,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 982 transitions, 13926 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:22:29,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:29,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:22:29,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:34,532 INFO L124 PetriNetUnfolderBase]: 4094/16192 cut-off events. [2024-12-02 07:22:34,532 INFO L125 PetriNetUnfolderBase]: For 104392/105394 co-relation queries the response was YES. [2024-12-02 07:22:34,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64685 conditions, 16192 events. 4094/16192 cut-off events. For 104392/105394 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 171938 event pairs, 463 based on Foata normal form. 202/16162 useless extension candidates. Maximal degree in co-relation 64259. Up to 2403 conditions per place. [2024-12-02 07:22:34,832 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 269 selfloop transitions, 135 changer transitions 0/950 dead transitions. [2024-12-02 07:22:34,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 950 transitions, 13917 flow [2024-12-02 07:22:34,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:22:34,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:22:34,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1626 transitions. [2024-12-02 07:22:34,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8789189189189189 [2024-12-02 07:22:34,834 INFO L175 Difference]: Start difference. First operand has 574 places, 982 transitions, 13926 flow. Second operand 10 states and 1626 transitions. [2024-12-02 07:22:34,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 950 transitions, 13917 flow [2024-12-02 07:22:35,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 950 transitions, 13603 flow, removed 39 selfloop flow, removed 9 redundant places. [2024-12-02 07:22:35,688 INFO L231 Difference]: Finished difference. Result has 575 places, 926 transitions, 12933 flow [2024-12-02 07:22:35,688 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=12490, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12933, PETRI_PLACES=575, PETRI_TRANSITIONS=926} [2024-12-02 07:22:35,689 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 393 predicate places. [2024-12-02 07:22:35,689 INFO L471 AbstractCegarLoop]: Abstraction has has 575 places, 926 transitions, 12933 flow [2024-12-02 07:22:35,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:22:35,689 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:35,689 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 07:22:35,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 07:22:35,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 07:22:35,890 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:22:35,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 882690145, now seen corresponding path program 30 times [2024-12-02 07:22:35,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:35,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572313651] [2024-12-02 07:22:35,892 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:22:35,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:35,909 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 07:22:35,910 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:22:36,144 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 07:22:36,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:36,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572313651] [2024-12-02 07:22:36,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572313651] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:36,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:36,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:36,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226851570] [2024-12-02 07:22:36,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:36,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:36,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:36,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:36,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:36,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:22:36,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 926 transitions, 12933 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:36,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:36,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:22:36,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:41,481 INFO L124 PetriNetUnfolderBase]: 4092/16028 cut-off events. [2024-12-02 07:22:41,481 INFO L125 PetriNetUnfolderBase]: For 103914/104829 co-relation queries the response was YES. [2024-12-02 07:22:41,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64388 conditions, 16028 events. 4092/16028 cut-off events. For 103914/104829 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 169571 event pairs, 402 based on Foata normal form. 167/15979 useless extension candidates. Maximal degree in co-relation 63959. Up to 2427 conditions per place. [2024-12-02 07:22:41,746 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 385 selfloop transitions, 60 changer transitions 0/991 dead transitions. [2024-12-02 07:22:41,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 991 transitions, 14577 flow [2024-12-02 07:22:41,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:22:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:22:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1484 transitions. [2024-12-02 07:22:41,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8912912912912913 [2024-12-02 07:22:41,748 INFO L175 Difference]: Start difference. First operand has 575 places, 926 transitions, 12933 flow. Second operand 9 states and 1484 transitions. [2024-12-02 07:22:41,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 991 transitions, 14577 flow [2024-12-02 07:22:42,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 991 transitions, 14259 flow, removed 36 selfloop flow, removed 6 redundant places. [2024-12-02 07:22:42,711 INFO L231 Difference]: Finished difference. Result has 583 places, 942 transitions, 13098 flow [2024-12-02 07:22:42,711 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=12615, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13098, PETRI_PLACES=583, PETRI_TRANSITIONS=942} [2024-12-02 07:22:42,712 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 401 predicate places. [2024-12-02 07:22:42,712 INFO L471 AbstractCegarLoop]: Abstraction has has 583 places, 942 transitions, 13098 flow [2024-12-02 07:22:42,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:42,712 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:42,712 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 07:22:42,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 07:22:42,713 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:22:42,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:42,715 INFO L85 PathProgramCache]: Analyzing trace with hash -226729913, now seen corresponding path program 31 times [2024-12-02 07:22:42,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:42,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120621987] [2024-12-02 07:22:42,715 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:22:42,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:42,932 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 07:22:42,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:42,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120621987] [2024-12-02 07:22:42,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120621987] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:42,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:42,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:42,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018822327] [2024-12-02 07:22:42,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:42,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:42,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:42,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:42,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:44,007 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:22:44,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 942 transitions, 13098 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:44,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:44,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:22:44,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:48,917 INFO L124 PetriNetUnfolderBase]: 4091/16085 cut-off events. [2024-12-02 07:22:48,918 INFO L125 PetriNetUnfolderBase]: For 107418/108380 co-relation queries the response was YES. [2024-12-02 07:22:49,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65236 conditions, 16085 events. 4091/16085 cut-off events. For 107418/108380 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 170429 event pairs, 405 based on Foata normal form. 192/16059 useless extension candidates. Maximal degree in co-relation 64802. Up to 2455 conditions per place. [2024-12-02 07:22:49,099 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 392 selfloop transitions, 70 changer transitions 0/1008 dead transitions. [2024-12-02 07:22:49,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1008 transitions, 14910 flow [2024-12-02 07:22:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:22:49,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:22:49,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2024-12-02 07:22:49,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8882882882882883 [2024-12-02 07:22:49,100 INFO L175 Difference]: Start difference. First operand has 583 places, 942 transitions, 13098 flow. Second operand 9 states and 1479 transitions. [2024-12-02 07:22:49,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 1008 transitions, 14910 flow [2024-12-02 07:22:49,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 1008 transitions, 14663 flow, removed 95 selfloop flow, removed 2 redundant places. [2024-12-02 07:22:49,939 INFO L231 Difference]: Finished difference. Result has 594 places, 952 transitions, 13339 flow [2024-12-02 07:22:49,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=12939, PETRI_DIFFERENCE_MINUEND_PLACES=581, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=876, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13339, PETRI_PLACES=594, PETRI_TRANSITIONS=952} [2024-12-02 07:22:49,940 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 412 predicate places. [2024-12-02 07:22:49,940 INFO L471 AbstractCegarLoop]: Abstraction has has 594 places, 952 transitions, 13339 flow [2024-12-02 07:22:49,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:49,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:49,941 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 07:22:49,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 07:22:49,941 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:22:49,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1104061281, now seen corresponding path program 32 times [2024-12-02 07:22:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:49,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738962759] [2024-12-02 07:22:49,944 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:22:49,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:49,961 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:22:49,961 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:22:50,122 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 07:22:50,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:50,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738962759] [2024-12-02 07:22:50,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738962759] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:50,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:50,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:50,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799781519] [2024-12-02 07:22:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:50,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:50,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:50,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:50,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:50,834 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:22:50,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 952 transitions, 13339 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:50,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:50,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:22:50,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:55,627 INFO L124 PetriNetUnfolderBase]: 4100/16156 cut-off events. [2024-12-02 07:22:55,627 INFO L125 PetriNetUnfolderBase]: For 110726/111669 co-relation queries the response was YES. [2024-12-02 07:22:55,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65792 conditions, 16156 events. 4100/16156 cut-off events. For 110726/111669 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 171422 event pairs, 400 based on Foata normal form. 170/16110 useless extension candidates. Maximal degree in co-relation 65353. Up to 2449 conditions per place. [2024-12-02 07:22:55,978 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 389 selfloop transitions, 67 changer transitions 0/1002 dead transitions. [2024-12-02 07:22:55,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1002 transitions, 14831 flow [2024-12-02 07:22:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:22:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:22:55,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1486 transitions. [2024-12-02 07:22:55,980 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8924924924924925 [2024-12-02 07:22:55,980 INFO L175 Difference]: Start difference. First operand has 594 places, 952 transitions, 13339 flow. Second operand 9 states and 1486 transitions. [2024-12-02 07:22:55,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1002 transitions, 14831 flow [2024-12-02 07:22:56,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 1002 transitions, 14611 flow, removed 86 selfloop flow, removed 2 redundant places. [2024-12-02 07:22:57,064 INFO L231 Difference]: Finished difference. Result has 603 places, 961 transitions, 13512 flow [2024-12-02 07:22:57,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=13213, PETRI_DIFFERENCE_MINUEND_PLACES=592, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=952, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13512, PETRI_PLACES=603, PETRI_TRANSITIONS=961} [2024-12-02 07:22:57,065 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 421 predicate places. [2024-12-02 07:22:57,065 INFO L471 AbstractCegarLoop]: Abstraction has has 603 places, 961 transitions, 13512 flow [2024-12-02 07:22:57,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:57,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:57,065 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 07:22:57,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 07:22:57,066 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:22:57,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:57,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1524433625, now seen corresponding path program 33 times [2024-12-02 07:22:57,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:57,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068655732] [2024-12-02 07:22:57,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:22:57,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:57,083 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 07:22:57,083 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:22:57,256 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 07:22:57,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:57,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068655732] [2024-12-02 07:22:57,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068655732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:57,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:57,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:22:57,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242934175] [2024-12-02 07:22:57,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:57,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:22:57,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:57,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:22:57,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:22:58,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:22:58,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 961 transitions, 13512 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:22:58,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:58,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:22:58,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:23:03,842 INFO L124 PetriNetUnfolderBase]: 4396/17146 cut-off events. [2024-12-02 07:23:03,843 INFO L125 PetriNetUnfolderBase]: For 115641/116649 co-relation queries the response was YES. [2024-12-02 07:23:04,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69887 conditions, 17146 events. 4396/17146 cut-off events. For 115641/116649 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 184108 event pairs, 419 based on Foata normal form. 181/17104 useless extension candidates. Maximal degree in co-relation 69445. Up to 2643 conditions per place. [2024-12-02 07:23:04,225 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 409 selfloop transitions, 70 changer transitions 0/1025 dead transitions. [2024-12-02 07:23:04,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1025 transitions, 15256 flow [2024-12-02 07:23:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:23:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:23:04,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1483 transitions. [2024-12-02 07:23:04,226 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8906906906906907 [2024-12-02 07:23:04,226 INFO L175 Difference]: Start difference. First operand has 603 places, 961 transitions, 13512 flow. Second operand 9 states and 1483 transitions. [2024-12-02 07:23:04,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 1025 transitions, 15256 flow [2024-12-02 07:23:05,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 1025 transitions, 15113 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-12-02 07:23:05,383 INFO L231 Difference]: Finished difference. Result has 610 places, 972 transitions, 13783 flow [2024-12-02 07:23:05,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=13385, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13783, PETRI_PLACES=610, PETRI_TRANSITIONS=972} [2024-12-02 07:23:05,384 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 428 predicate places. [2024-12-02 07:23:05,384 INFO L471 AbstractCegarLoop]: Abstraction has has 610 places, 972 transitions, 13783 flow [2024-12-02 07:23:05,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:23:05,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:23:05,385 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 07:23:05,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 07:23:05,385 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:23:05,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:05,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1518573891, now seen corresponding path program 34 times [2024-12-02 07:23:05,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:05,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613080832] [2024-12-02 07:23:05,386 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:23:05,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:05,405 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:23:05,405 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:23:06,020 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 07:23:06,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:06,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613080832] [2024-12-02 07:23:06,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613080832] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:06,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:06,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:23:06,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506049351] [2024-12-02 07:23:06,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:06,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:23:06,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:06,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:23:06,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:23:07,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 185 [2024-12-02 07:23:07,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 972 transitions, 13783 flow. Second operand has 16 states, 16 states have (on average 135.375) internal successors, (2166), 16 states have internal predecessors, (2166), 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 07:23:07,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:23:07,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 185 [2024-12-02 07:23:07,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:23:17,739 INFO L124 PetriNetUnfolderBase]: 7440/22710 cut-off events. [2024-12-02 07:23:17,739 INFO L125 PetriNetUnfolderBase]: For 217276/219097 co-relation queries the response was YES. [2024-12-02 07:23:18,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108924 conditions, 22710 events. 7440/22710 cut-off events. For 217276/219097 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 233164 event pairs, 1415 based on Foata normal form. 498/22906 useless extension candidates. Maximal degree in co-relation 108478. Up to 4012 conditions per place. [2024-12-02 07:23:18,250 INFO L140 encePairwiseOnDemand]: 153/185 looper letters, 1529 selfloop transitions, 355 changer transitions 4/2093 dead transitions. [2024-12-02 07:23:18,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 2093 transitions, 29646 flow [2024-12-02 07:23:18,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 07:23:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-12-02 07:23:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3475 transitions. [2024-12-02 07:23:18,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8166862514688602 [2024-12-02 07:23:18,252 INFO L175 Difference]: Start difference. First operand has 610 places, 972 transitions, 13783 flow. Second operand 23 states and 3475 transitions. [2024-12-02 07:23:18,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 2093 transitions, 29646 flow [2024-12-02 07:23:19,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 2093 transitions, 29527 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-12-02 07:23:19,679 INFO L231 Difference]: Finished difference. Result has 642 places, 1144 transitions, 17844 flow [2024-12-02 07:23:19,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=13669, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=17844, PETRI_PLACES=642, PETRI_TRANSITIONS=1144} [2024-12-02 07:23:19,680 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 460 predicate places. [2024-12-02 07:23:19,680 INFO L471 AbstractCegarLoop]: Abstraction has has 642 places, 1144 transitions, 17844 flow [2024-12-02 07:23:19,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 135.375) internal successors, (2166), 16 states have internal predecessors, (2166), 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 07:23:19,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:23:19,680 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 07:23:19,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 07:23:19,680 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:23:19,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1211886405, now seen corresponding path program 35 times [2024-12-02 07:23:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:19,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580870727] [2024-12-02 07:23:19,682 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:23:19,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:19,704 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:23:19,704 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:23:20,348 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-12-02 07:23:20,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:20,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580870727] [2024-12-02 07:23:20,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580870727] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:23:20,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620475939] [2024-12-02 07:23:20,349 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:23:20,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:23:20,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:23:20,350 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:23:20,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 07:23:20,525 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:23:20,525 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:23:20,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 07:23:20,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:23:20,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 07:23:20,809 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 07:23:20,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:23:20,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620475939] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:20,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:23:20,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-12-02 07:23:20,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125901333] [2024-12-02 07:23:20,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:20,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:23:20,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:20,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:23:20,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:23:21,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:23:21,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 1144 transitions, 17844 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:23:21,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:23:21,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:23:21,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:23:27,553 INFO L124 PetriNetUnfolderBase]: 4554/17589 cut-off events. [2024-12-02 07:23:27,553 INFO L125 PetriNetUnfolderBase]: For 148671/149775 co-relation queries the response was YES. [2024-12-02 07:23:27,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75360 conditions, 17589 events. 4554/17589 cut-off events. For 148671/149775 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 189365 event pairs, 429 based on Foata normal form. 218/17555 useless extension candidates. Maximal degree in co-relation 74899. Up to 2746 conditions per place. [2024-12-02 07:23:27,862 INFO L140 encePairwiseOnDemand]: 167/185 looper letters, 399 selfloop transitions, 92 changer transitions 0/1079 dead transitions. [2024-12-02 07:23:27,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 1079 transitions, 17031 flow [2024-12-02 07:23:27,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:23:27,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 07:23:27,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2115 transitions. [2024-12-02 07:23:27,863 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8794178794178794 [2024-12-02 07:23:27,863 INFO L175 Difference]: Start difference. First operand has 642 places, 1144 transitions, 17844 flow. Second operand 13 states and 2115 transitions. [2024-12-02 07:23:27,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 1079 transitions, 17031 flow [2024-12-02 07:23:29,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 1079 transitions, 16637 flow, removed 72 selfloop flow, removed 8 redundant places. [2024-12-02 07:23:29,043 INFO L231 Difference]: Finished difference. Result has 646 places, 1039 transitions, 15611 flow [2024-12-02 07:23:29,043 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15062, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1024, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15611, PETRI_PLACES=646, PETRI_TRANSITIONS=1039} [2024-12-02 07:23:29,044 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 464 predicate places. [2024-12-02 07:23:29,044 INFO L471 AbstractCegarLoop]: Abstraction has has 646 places, 1039 transitions, 15611 flow [2024-12-02 07:23:29,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:23:29,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:23:29,044 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 07:23:29,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 07:23:29,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:23:29,245 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:23:29,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:29,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1940459835, now seen corresponding path program 36 times [2024-12-02 07:23:29,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:29,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862420429] [2024-12-02 07:23:29,246 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:23:29,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:29,259 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 07:23:29,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:23:29,411 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 07:23:29,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:29,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862420429] [2024-12-02 07:23:29,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862420429] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:29,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:29,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:23:29,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977615780] [2024-12-02 07:23:29,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:29,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:23:29,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:29,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:23:29,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:23:30,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:23:30,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 1039 transitions, 15611 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:23:30,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:23:30,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:23:30,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:23:35,984 INFO L124 PetriNetUnfolderBase]: 4262/16732 cut-off events. [2024-12-02 07:23:35,985 INFO L125 PetriNetUnfolderBase]: For 129819/130770 co-relation queries the response was YES. [2024-12-02 07:23:36,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70585 conditions, 16732 events. 4262/16732 cut-off events. For 129819/130770 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 178673 event pairs, 408 based on Foata normal form. 173/16662 useless extension candidates. Maximal degree in co-relation 70121. Up to 2562 conditions per place. [2024-12-02 07:23:36,202 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 413 selfloop transitions, 82 changer transitions 0/1067 dead transitions. [2024-12-02 07:23:36,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 1067 transitions, 16734 flow [2024-12-02 07:23:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:23:36,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:23:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1482 transitions. [2024-12-02 07:23:36,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8900900900900901 [2024-12-02 07:23:36,203 INFO L175 Difference]: Start difference. First operand has 646 places, 1039 transitions, 15611 flow. Second operand 9 states and 1482 transitions. [2024-12-02 07:23:36,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 654 places, 1067 transitions, 16734 flow [2024-12-02 07:23:37,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 1067 transitions, 16542 flow, removed 69 selfloop flow, removed 4 redundant places. [2024-12-02 07:23:37,233 INFO L231 Difference]: Finished difference. Result has 653 places, 1028 transitions, 15383 flow [2024-12-02 07:23:37,233 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=14992, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1019, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15383, PETRI_PLACES=653, PETRI_TRANSITIONS=1028} [2024-12-02 07:23:37,234 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 471 predicate places. [2024-12-02 07:23:37,234 INFO L471 AbstractCegarLoop]: Abstraction has has 653 places, 1028 transitions, 15383 flow [2024-12-02 07:23:37,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:23:37,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:23:37,234 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:23:37,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 07:23:37,234 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:23:37,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:37,236 INFO L85 PathProgramCache]: Analyzing trace with hash 77526459, now seen corresponding path program 37 times [2024-12-02 07:23:37,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:37,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348323710] [2024-12-02 07:23:37,236 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:23:37,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:23:37,459 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 07:23:37,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:37,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348323710] [2024-12-02 07:23:37,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348323710] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:37,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:37,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:23:37,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571060205] [2024-12-02 07:23:37,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:37,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:23:37,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:37,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:23:37,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:23:38,247 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:23:38,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 653 places, 1028 transitions, 15383 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:23:38,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:23:38,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:23:38,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:23:43,805 INFO L124 PetriNetUnfolderBase]: 4259/16755 cut-off events. [2024-12-02 07:23:43,805 INFO L125 PetriNetUnfolderBase]: For 128778/129754 co-relation queries the response was YES. [2024-12-02 07:23:44,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70518 conditions, 16755 events. 4259/16755 cut-off events. For 128778/129754 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 178972 event pairs, 386 based on Foata normal form. 223/16747 useless extension candidates. Maximal degree in co-relation 70053. Up to 2537 conditions per place. [2024-12-02 07:23:44,083 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 406 selfloop transitions, 121 changer transitions 0/1099 dead transitions. [2024-12-02 07:23:44,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 1099 transitions, 17327 flow [2024-12-02 07:23:44,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:23:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:23:44,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1473 transitions. [2024-12-02 07:23:44,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8846846846846846 [2024-12-02 07:23:44,084 INFO L175 Difference]: Start difference. First operand has 653 places, 1028 transitions, 15383 flow. Second operand 9 states and 1473 transitions. [2024-12-02 07:23:44,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 1099 transitions, 17327 flow [2024-12-02 07:23:45,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 655 places, 1099 transitions, 17106 flow, removed 28 selfloop flow, removed 6 redundant places. [2024-12-02 07:23:45,156 INFO L231 Difference]: Finished difference. Result has 660 places, 1038 transitions, 15788 flow [2024-12-02 07:23:45,157 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15188, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1028, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15788, PETRI_PLACES=660, PETRI_TRANSITIONS=1038} [2024-12-02 07:23:45,157 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 478 predicate places. [2024-12-02 07:23:45,157 INFO L471 AbstractCegarLoop]: Abstraction has has 660 places, 1038 transitions, 15788 flow [2024-12-02 07:23:45,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:23:45,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:23:45,157 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 07:23:45,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 07:23:45,157 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:23:45,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:45,159 INFO L85 PathProgramCache]: Analyzing trace with hash 865663923, now seen corresponding path program 38 times [2024-12-02 07:23:45,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:45,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595839298] [2024-12-02 07:23:45,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:23:45,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:45,171 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:23:45,171 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:23:45,326 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 07:23:45,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:45,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595839298] [2024-12-02 07:23:45,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595839298] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:45,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:45,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:23:45,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388791054] [2024-12-02 07:23:45,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:45,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:23:45,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:45,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:23:45,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:23:45,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:23:45,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 1038 transitions, 15788 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:23:45,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:23:45,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:23:45,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:23:51,750 INFO L124 PetriNetUnfolderBase]: 4257/16755 cut-off events. [2024-12-02 07:23:51,750 INFO L125 PetriNetUnfolderBase]: For 134977/135979 co-relation queries the response was YES. [2024-12-02 07:23:52,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71376 conditions, 16755 events. 4257/16755 cut-off events. For 134977/135979 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 179073 event pairs, 385 based on Foata normal form. 191/16706 useless extension candidates. Maximal degree in co-relation 70907. Up to 2558 conditions per place. [2024-12-02 07:23:52,121 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 438 selfloop transitions, 85 changer transitions 0/1095 dead transitions. [2024-12-02 07:23:52,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 1095 transitions, 17512 flow [2024-12-02 07:23:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:23:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:23:52,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1478 transitions. [2024-12-02 07:23:52,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8876876876876877 [2024-12-02 07:23:52,123 INFO L175 Difference]: Start difference. First operand has 660 places, 1038 transitions, 15788 flow. Second operand 9 states and 1478 transitions. [2024-12-02 07:23:52,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 1095 transitions, 17512 flow [2024-12-02 07:23:53,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 1095 transitions, 17254 flow, removed 84 selfloop flow, removed 2 redundant places. [2024-12-02 07:23:53,353 INFO L231 Difference]: Finished difference. Result has 670 places, 1046 transitions, 15964 flow [2024-12-02 07:23:53,354 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15580, PETRI_DIFFERENCE_MINUEND_PLACES=658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1038, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15964, PETRI_PLACES=670, PETRI_TRANSITIONS=1046} [2024-12-02 07:23:53,354 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 488 predicate places. [2024-12-02 07:23:53,354 INFO L471 AbstractCegarLoop]: Abstraction has has 670 places, 1046 transitions, 15964 flow [2024-12-02 07:23:53,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:23:53,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:23:53,354 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 07:23:53,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 07:23:53,354 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:23:53,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:23:53,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1408780129, now seen corresponding path program 39 times [2024-12-02 07:23:53,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:23:53,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794044409] [2024-12-02 07:23:53,356 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 07:23:53,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:23:53,368 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 07:23:53,368 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:23:53,518 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 07:23:53,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:23:53,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794044409] [2024-12-02 07:23:53,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794044409] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:23:53,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:23:53,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:23:53,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047822924] [2024-12-02 07:23:53,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:23:53,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:23:53,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:53,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:23:53,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:23:54,397 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:23:54,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 1046 transitions, 15964 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:23:54,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:23:54,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:23:54,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:24:00,241 INFO L124 PetriNetUnfolderBase]: 4264/16758 cut-off events. [2024-12-02 07:24:00,241 INFO L125 PetriNetUnfolderBase]: For 133014/134019 co-relation queries the response was YES. [2024-12-02 07:24:00,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71132 conditions, 16758 events. 4264/16758 cut-off events. For 133014/134019 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 179097 event pairs, 382 based on Foata normal form. 201/16721 useless extension candidates. Maximal degree in co-relation 70658. Up to 2546 conditions per place. [2024-12-02 07:24:00,545 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 434 selfloop transitions, 101 changer transitions 0/1107 dead transitions. [2024-12-02 07:24:00,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 678 places, 1107 transitions, 17786 flow [2024-12-02 07:24:00,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:24:00,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:24:00,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1477 transitions. [2024-12-02 07:24:00,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8870870870870871 [2024-12-02 07:24:00,547 INFO L175 Difference]: Start difference. First operand has 670 places, 1046 transitions, 15964 flow. Second operand 9 states and 1477 transitions. [2024-12-02 07:24:00,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 678 places, 1107 transitions, 17786 flow [2024-12-02 07:24:02,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 674 places, 1107 transitions, 17547 flow, removed 51 selfloop flow, removed 4 redundant places. [2024-12-02 07:24:02,033 INFO L231 Difference]: Finished difference. Result has 678 places, 1054 transitions, 16223 flow [2024-12-02 07:24:02,034 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15794, PETRI_DIFFERENCE_MINUEND_PLACES=666, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1046, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16223, PETRI_PLACES=678, PETRI_TRANSITIONS=1054} [2024-12-02 07:24:02,034 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 496 predicate places. [2024-12-02 07:24:02,034 INFO L471 AbstractCegarLoop]: Abstraction has has 678 places, 1054 transitions, 16223 flow [2024-12-02 07:24:02,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:24:02,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:24:02,035 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 07:24:02,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 07:24:02,035 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:24:02,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:24:02,036 INFO L85 PathProgramCache]: Analyzing trace with hash 554454459, now seen corresponding path program 40 times [2024-12-02 07:24:02,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:24:02,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303094704] [2024-12-02 07:24:02,036 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 07:24:02,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:24:02,059 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 07:24:02,059 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:24:02,494 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 07:24:02,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:24:02,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303094704] [2024-12-02 07:24:02,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303094704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:24:02,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:24:02,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:24:02,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467790200] [2024-12-02 07:24:02,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:24:02,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:24:02,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:24:02,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:24:02,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:24:03,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:24:03,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 678 places, 1054 transitions, 16223 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:24:03,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:24:03,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:24:03,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:24:09,628 INFO L124 PetriNetUnfolderBase]: 4265/16882 cut-off events. [2024-12-02 07:24:09,628 INFO L125 PetriNetUnfolderBase]: For 135240/136200 co-relation queries the response was YES. [2024-12-02 07:24:09,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71865 conditions, 16882 events. 4265/16882 cut-off events. For 135240/136200 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 180896 event pairs, 387 based on Foata normal form. 173/16819 useless extension candidates. Maximal degree in co-relation 71387. Up to 2563 conditions per place. [2024-12-02 07:24:09,932 INFO L140 encePairwiseOnDemand]: 168/185 looper letters, 441 selfloop transitions, 90 changer transitions 0/1103 dead transitions. [2024-12-02 07:24:09,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 1103 transitions, 17792 flow [2024-12-02 07:24:09,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:24:09,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:24:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1633 transitions. [2024-12-02 07:24:09,934 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8827027027027027 [2024-12-02 07:24:09,934 INFO L175 Difference]: Start difference. First operand has 678 places, 1054 transitions, 16223 flow. Second operand 10 states and 1633 transitions. [2024-12-02 07:24:09,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 1103 transitions, 17792 flow [2024-12-02 07:24:11,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 1103 transitions, 17575 flow, removed 29 selfloop flow, removed 4 redundant places. [2024-12-02 07:24:11,143 INFO L231 Difference]: Finished difference. Result has 686 places, 1063 transitions, 16426 flow [2024-12-02 07:24:11,143 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=16029, PETRI_DIFFERENCE_MINUEND_PLACES=674, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16426, PETRI_PLACES=686, PETRI_TRANSITIONS=1063} [2024-12-02 07:24:11,143 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 504 predicate places. [2024-12-02 07:24:11,143 INFO L471 AbstractCegarLoop]: Abstraction has has 686 places, 1063 transitions, 16426 flow [2024-12-02 07:24:11,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:24:11,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:24:11,144 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 07:24:11,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 07:24:11,144 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:24:11,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:24:11,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1678256981, now seen corresponding path program 41 times [2024-12-02 07:24:11,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:24:11,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040471307] [2024-12-02 07:24:11,146 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:24:11,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:24:11,162 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:24:11,162 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:24:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-12-02 07:24:11,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:24:11,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040471307] [2024-12-02 07:24:11,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040471307] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:24:11,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736651846] [2024-12-02 07:24:11,492 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 07:24:11,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:24:11,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:24:11,493 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:24:11,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 07:24:11,694 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-02 07:24:11,694 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:24:11,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 07:24:11,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:24:11,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 07:24:11,940 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 07:24:11,940 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:24:11,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736651846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:24:11,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:24:11,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-12-02 07:24:11,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45251421] [2024-12-02 07:24:11,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:24:11,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:24:11,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:24:11,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:24:11,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:24:13,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:24:13,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 686 places, 1063 transitions, 16426 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:24:13,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:24:13,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:24:13,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:24:19,103 INFO L124 PetriNetUnfolderBase]: 4258/16805 cut-off events. [2024-12-02 07:24:19,103 INFO L125 PetriNetUnfolderBase]: For 132023/133002 co-relation queries the response was YES. [2024-12-02 07:24:19,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71175 conditions, 16805 events. 4258/16805 cut-off events. For 132023/133002 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 180146 event pairs, 381 based on Foata normal form. 179/16741 useless extension candidates. Maximal degree in co-relation 70693. Up to 2570 conditions per place. [2024-12-02 07:24:19,415 INFO L140 encePairwiseOnDemand]: 168/185 looper letters, 440 selfloop transitions, 100 changer transitions 0/1112 dead transitions. [2024-12-02 07:24:19,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 698 places, 1112 transitions, 17916 flow [2024-12-02 07:24:19,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:24:19,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-02 07:24:19,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2107 transitions. [2024-12-02 07:24:19,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8760914760914761 [2024-12-02 07:24:19,417 INFO L175 Difference]: Start difference. First operand has 686 places, 1063 transitions, 16426 flow. Second operand 13 states and 2107 transitions. [2024-12-02 07:24:19,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 698 places, 1112 transitions, 17916 flow [2024-12-02 07:24:20,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 694 places, 1112 transitions, 17772 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-12-02 07:24:20,614 INFO L231 Difference]: Finished difference. Result has 699 places, 1073 transitions, 16721 flow [2024-12-02 07:24:20,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=16209, PETRI_DIFFERENCE_MINUEND_PLACES=682, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=16721, PETRI_PLACES=699, PETRI_TRANSITIONS=1073} [2024-12-02 07:24:20,615 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 517 predicate places. [2024-12-02 07:24:20,615 INFO L471 AbstractCegarLoop]: Abstraction has has 699 places, 1073 transitions, 16721 flow [2024-12-02 07:24:20,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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 07:24:20,615 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:24:20,615 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 07:24:20,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 07:24:20,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a20a4df-0285-4b8f-94ab-373ed195bdc1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:24:20,816 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:24:20,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:24:20,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1063487361, now seen corresponding path program 42 times [2024-12-02 07:24:20,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:24:20,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552669820] [2024-12-02 07:24:20,818 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 07:24:20,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:24:20,831 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 07:24:20,831 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:24:21,003 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 07:24:21,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:24:21,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552669820] [2024-12-02 07:24:21,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552669820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:24:21,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:24:21,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:24:21,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71493396] [2024-12-02 07:24:21,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:24:21,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:24:21,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:24:21,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:24:21,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:24:21,772 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:24:21,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 699 places, 1073 transitions, 16721 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:24:21,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:24:21,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:24:21,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:24:27,469 INFO L124 PetriNetUnfolderBase]: 3975/15890 cut-off events. [2024-12-02 07:24:27,469 INFO L125 PetriNetUnfolderBase]: For 124438/125354 co-relation queries the response was YES. [2024-12-02 07:24:27,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67020 conditions, 15890 events. 3975/15890 cut-off events. For 124438/125354 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 168945 event pairs, 368 based on Foata normal form. 192/15853 useless extension candidates. Maximal degree in co-relation 66533. Up to 2392 conditions per place. [2024-12-02 07:24:27,780 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 436 selfloop transitions, 110 changer transitions 0/1102 dead transitions. [2024-12-02 07:24:27,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 707 places, 1102 transitions, 17852 flow [2024-12-02 07:24:27,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:24:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:24:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1476 transitions. [2024-12-02 07:24:27,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8864864864864865 [2024-12-02 07:24:27,781 INFO L175 Difference]: Start difference. First operand has 699 places, 1073 transitions, 16721 flow. Second operand 9 states and 1476 transitions. [2024-12-02 07:24:27,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 707 places, 1102 transitions, 17852 flow [2024-12-02 07:24:28,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 700 places, 1102 transitions, 17552 flow, removed 57 selfloop flow, removed 7 redundant places. [2024-12-02 07:24:28,861 INFO L231 Difference]: Finished difference. Result has 703 places, 1062 transitions, 16431 flow [2024-12-02 07:24:28,861 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=15985, PETRI_DIFFERENCE_MINUEND_PLACES=692, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16431, PETRI_PLACES=703, PETRI_TRANSITIONS=1062} [2024-12-02 07:24:28,862 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 521 predicate places. [2024-12-02 07:24:28,862 INFO L471 AbstractCegarLoop]: Abstraction has has 703 places, 1062 transitions, 16431 flow [2024-12-02 07:24:28,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:24:28,862 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:24:28,862 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 07:24:28,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-12-02 07:24:28,862 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:24:28,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:24:28,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1007360897, now seen corresponding path program 43 times [2024-12-02 07:24:28,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:24:28,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745915457] [2024-12-02 07:24:28,864 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 07:24:28,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:24:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:24:29,072 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 07:24:29,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:24:29,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745915457] [2024-12-02 07:24:29,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745915457] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:24:29,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:24:29,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:24:29,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547857248] [2024-12-02 07:24:29,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:24:29,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:24:29,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:24:29,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:24:29,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:24:30,173 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-12-02 07:24:30,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 1062 transitions, 16431 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:24:30,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:24:30,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-12-02 07:24:30,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:24:36,064 INFO L124 PetriNetUnfolderBase]: 4285/16944 cut-off events. [2024-12-02 07:24:36,065 INFO L125 PetriNetUnfolderBase]: For 131630/132591 co-relation queries the response was YES. [2024-12-02 07:24:36,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71499 conditions, 16944 events. 4285/16944 cut-off events. For 131630/132591 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 181880 event pairs, 380 based on Foata normal form. 191/16900 useless extension candidates. Maximal degree in co-relation 71010. Up to 2586 conditions per place. [2024-12-02 07:24:36,420 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 475 selfloop transitions, 94 changer transitions 2/1127 dead transitions. [2024-12-02 07:24:36,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 711 places, 1127 transitions, 18323 flow [2024-12-02 07:24:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:24:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 07:24:36,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1483 transitions. [2024-12-02 07:24:36,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8906906906906907 [2024-12-02 07:24:36,422 INFO L175 Difference]: Start difference. First operand has 703 places, 1062 transitions, 16431 flow. Second operand 9 states and 1483 transitions. [2024-12-02 07:24:36,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 711 places, 1127 transitions, 18323 flow [2024-12-02 07:24:37,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 707 places, 1127 transitions, 18134 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-12-02 07:24:37,943 INFO L231 Difference]: Finished difference. Result has 711 places, 1073 transitions, 16689 flow [2024-12-02 07:24:37,943 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=16256, PETRI_DIFFERENCE_MINUEND_PLACES=699, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=971, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16689, PETRI_PLACES=711, PETRI_TRANSITIONS=1073} [2024-12-02 07:24:37,943 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 529 predicate places. [2024-12-02 07:24:37,943 INFO L471 AbstractCegarLoop]: Abstraction has has 711 places, 1073 transitions, 16689 flow [2024-12-02 07:24:37,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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 07:24:37,944 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:24:37,944 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 07:24:37,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-12-02 07:24:37,944 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-12-02 07:24:37,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:24:37,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1098742783, now seen corresponding path program 44 times [2024-12-02 07:24:37,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:24:37,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356230777] [2024-12-02 07:24:37,946 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:24:37,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms