./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX --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 af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:13:08,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:13:08,443 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:13:08,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:13:08,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:13:08,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:13:08,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:13:08,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:13:08,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:13:08,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:13:08,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:13:08,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:13:08,483 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:13:08,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:13:08,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:13:08,489 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:13:08,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:13:08,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:13:08,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:13:08,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:13:08,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:13:08,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:13:08,492 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:13:08,493 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:13:08,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:13:08,493 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:13:08,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:13:08,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:13:08,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:13:08,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:13:08,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:13:08,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:08,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:13:08,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:13:08,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:13:08,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:13:08,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:13:08,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:13:08,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:13:08,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:13:08,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:13:08,500 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2024-11-08 17:13:08,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:13:08,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:13:08,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:13:08,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:13:08,854 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:13:08,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i Unable to find full path for "g++" [2024-11-08 17:13:10,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:13:11,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:13:11,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-11-08 17:13:11,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/data/5532ecc58/78a13c51f5a942d6ba6e994581eb5276/FLAGd49360942 [2024-11-08 17:13:11,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/data/5532ecc58/78a13c51f5a942d6ba6e994581eb5276 [2024-11-08 17:13:11,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:13:11,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:13:11,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:13:11,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:13:11,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:13:11,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:11" (1/1) ... [2024-11-08 17:13:11,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7f3290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:11, skipping insertion in model container [2024-11-08 17:13:11,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:11" (1/1) ... [2024-11-08 17:13:11,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:13:11,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:13:11,936 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:13:12,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:13:12,061 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:13:12,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12 WrapperNode [2024-11-08 17:13:12,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:13:12,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:13:12,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:13:12,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:13:12,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,110 INFO L138 Inliner]: procedures = 172, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2024-11-08 17:13:12,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:13:12,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:13:12,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:13:12,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:13:12,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:13:12,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:13:12,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:13:12,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:13:12,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (1/1) ... [2024-11-08 17:13:12,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:12,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:12,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:13:12,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:13:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:13:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:13:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:13:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:13:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:13:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:13:12,223 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:13:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:13:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-08 17:13:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:13:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:13:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:13:12,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:13:12,225 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:13:12,358 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:13:12,360 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:13:12,647 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:13:12,647 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:13:12,695 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:13:12,696 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-08 17:13:12,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:12 BoogieIcfgContainer [2024-11-08 17:13:12,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:13:12,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:13:12,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:13:12,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:13:12,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:13:11" (1/3) ... [2024-11-08 17:13:12,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bf4f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:12, skipping insertion in model container [2024-11-08 17:13:12,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:12" (2/3) ... [2024-11-08 17:13:12,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bf4f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:12, skipping insertion in model container [2024-11-08 17:13:12,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:12" (3/3) ... [2024-11-08 17:13:12,705 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2024-11-08 17:13:12,724 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:13:12,725 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-08 17:13:12,725 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:13:12,810 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:13:12,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 146 transitions, 299 flow [2024-11-08 17:13:12,941 INFO L124 PetriNetUnfolderBase]: 23/211 cut-off events. [2024-11-08 17:13:12,943 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:13:12,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 211 events. 23/211 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 668 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 115. Up to 6 conditions per place. [2024-11-08 17:13:12,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 146 transitions, 299 flow [2024-11-08 17:13:12,963 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 146 transitions, 299 flow [2024-11-08 17:13:12,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:13:12,983 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;@51a96a28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:13:12,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-08 17:13:12,996 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:13:12,997 INFO L124 PetriNetUnfolderBase]: 3/47 cut-off events. [2024-11-08 17:13:12,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:13:12,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:12,998 INFO L204 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] [2024-11-08 17:13:12,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 17:13:13,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:13,004 INFO L85 PathProgramCache]: Analyzing trace with hash -678813354, now seen corresponding path program 1 times [2024-11-08 17:13:13,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:13,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765508164] [2024-11-08 17:13:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:13,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:13,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:13,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765508164] [2024-11-08 17:13:13,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765508164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:13,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:13,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:13,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886935021] [2024-11-08 17:13:13,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:13,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:13:13,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:13:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:13:13,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 146 [2024-11-08 17:13:13,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 146 transitions, 299 flow. Second operand has 2 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:13,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:13,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 146 [2024-11-08 17:13:13,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:13,518 INFO L124 PetriNetUnfolderBase]: 31/375 cut-off events. [2024-11-08 17:13:13,518 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 17:13:13,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 375 events. 31/375 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1474 event pairs, 24 based on Foata normal form. 40/373 useless extension candidates. Maximal degree in co-relation 344. Up to 65 conditions per place. [2024-11-08 17:13:13,523 INFO L140 encePairwiseOnDemand]: 135/146 looper letters, 12 selfloop transitions, 0 changer transitions 0/133 dead transitions. [2024-11-08 17:13:13,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 133 transitions, 297 flow [2024-11-08 17:13:13,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:13:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-08 17:13:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 267 transitions. [2024-11-08 17:13:13,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9143835616438356 [2024-11-08 17:13:13,542 INFO L175 Difference]: Start difference. First operand has 134 places, 146 transitions, 299 flow. Second operand 2 states and 267 transitions. [2024-11-08 17:13:13,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 133 transitions, 297 flow [2024-11-08 17:13:13,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 133 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:13:13,553 INFO L231 Difference]: Finished difference. Result has 133 places, 133 transitions, 273 flow [2024-11-08 17:13:13,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=273, PETRI_PLACES=133, PETRI_TRANSITIONS=133} [2024-11-08 17:13:13,562 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, -1 predicate places. [2024-11-08 17:13:13,563 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 133 transitions, 273 flow [2024-11-08 17:13:13,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:13,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:13,566 INFO L204 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] [2024-11-08 17:13:13,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:13:13,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 17:13:13,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:13,569 INFO L85 PathProgramCache]: Analyzing trace with hash 531615966, now seen corresponding path program 1 times [2024-11-08 17:13:13,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:13,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903506384] [2024-11-08 17:13:13,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:13,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:13,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:13,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903506384] [2024-11-08 17:13:13,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903506384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:13,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:13,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:13,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755128388] [2024-11-08 17:13:13,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:13,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:13,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:13,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:13,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:13,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 146 [2024-11-08 17:13:13,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 133 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:13,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:13,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 146 [2024-11-08 17:13:13,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:13,939 INFO L124 PetriNetUnfolderBase]: 70/603 cut-off events. [2024-11-08 17:13:13,940 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 17:13:13,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 603 events. 70/603 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2925 event pairs, 35 based on Foata normal form. 2/535 useless extension candidates. Maximal degree in co-relation 728. Up to 115 conditions per place. [2024-11-08 17:13:13,948 INFO L140 encePairwiseOnDemand]: 142/146 looper letters, 23 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-08 17:13:13,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 139 transitions, 335 flow [2024-11-08 17:13:13,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:13,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2024-11-08 17:13:13,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8493150684931506 [2024-11-08 17:13:13,954 INFO L175 Difference]: Start difference. First operand has 133 places, 133 transitions, 273 flow. Second operand 3 states and 372 transitions. [2024-11-08 17:13:13,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 139 transitions, 335 flow [2024-11-08 17:13:13,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 139 transitions, 335 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:13:13,962 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 283 flow [2024-11-08 17:13:13,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-11-08 17:13:13,965 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 2 predicate places. [2024-11-08 17:13:13,965 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 283 flow [2024-11-08 17:13:13,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:13,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:13,966 INFO L204 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] [2024-11-08 17:13:13,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:13:13,967 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 17:13:13,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:13,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1665414356, now seen corresponding path program 1 times [2024-11-08 17:13:13,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:13,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138758607] [2024-11-08 17:13:13,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:13,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:14,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138758607] [2024-11-08 17:13:14,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138758607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:14,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:14,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:13:14,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052513616] [2024-11-08 17:13:14,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:14,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:13:14,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:14,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:13:14,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:13:14,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 146 [2024-11-08 17:13:14,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:14,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:14,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 146 [2024-11-08 17:13:14,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:15,081 INFO L124 PetriNetUnfolderBase]: 125/708 cut-off events. [2024-11-08 17:13:15,081 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 17:13:15,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 708 events. 125/708 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4026 event pairs, 66 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 987. Up to 181 conditions per place. [2024-11-08 17:13:15,085 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 48 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-11-08 17:13:15,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 156 transitions, 435 flow [2024-11-08 17:13:15,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:13:15,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:13:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2024-11-08 17:13:15,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.773972602739726 [2024-11-08 17:13:15,090 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 283 flow. Second operand 6 states and 678 transitions. [2024-11-08 17:13:15,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 156 transitions, 435 flow [2024-11-08 17:13:15,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 156 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:13:15,097 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 287 flow [2024-11-08 17:13:15,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=287, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2024-11-08 17:13:15,101 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 4 predicate places. [2024-11-08 17:13:15,101 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 287 flow [2024-11-08 17:13:15,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:15,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:15,102 INFO L204 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] [2024-11-08 17:13:15,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:13:15,103 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 17:13:15,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:15,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1569939989, now seen corresponding path program 1 times [2024-11-08 17:13:15,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:15,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941126386] [2024-11-08 17:13:15,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:15,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:15,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:15,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941126386] [2024-11-08 17:13:15,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941126386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:15,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:15,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:15,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754478607] [2024-11-08 17:13:15,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:15,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:15,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:15,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:15,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 146 [2024-11-08 17:13:15,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 287 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:15,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:15,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 146 [2024-11-08 17:13:15,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:15,360 INFO L124 PetriNetUnfolderBase]: 106/820 cut-off events. [2024-11-08 17:13:15,361 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 17:13:15,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 820 events. 106/820 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4818 event pairs, 30 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 1052. Up to 125 conditions per place. [2024-11-08 17:13:15,366 INFO L140 encePairwiseOnDemand]: 137/146 looper letters, 30 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2024-11-08 17:13:15,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 145 transitions, 388 flow [2024-11-08 17:13:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2024-11-08 17:13:15,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8493150684931506 [2024-11-08 17:13:15,369 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 287 flow. Second operand 3 states and 372 transitions. [2024-11-08 17:13:15,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 145 transitions, 388 flow [2024-11-08 17:13:15,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 145 transitions, 378 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:13:15,374 INFO L231 Difference]: Finished difference. Result has 135 places, 134 transitions, 315 flow [2024-11-08 17:13:15,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=135, PETRI_TRANSITIONS=134} [2024-11-08 17:13:15,375 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 1 predicate places. [2024-11-08 17:13:15,375 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 134 transitions, 315 flow [2024-11-08 17:13:15,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:15,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:15,376 INFO L204 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] [2024-11-08 17:13:15,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:13:15,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 17:13:15,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:15,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1809573771, now seen corresponding path program 1 times [2024-11-08 17:13:15,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:15,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817342937] [2024-11-08 17:13:15,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:15,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:15,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817342937] [2024-11-08 17:13:15,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817342937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:15,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:15,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:15,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017996541] [2024-11-08 17:13:15,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:15,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:15,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:15,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:15,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 146 [2024-11-08 17:13:15,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 134 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:15,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:15,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 146 [2024-11-08 17:13:15,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:15,648 INFO L124 PetriNetUnfolderBase]: 108/820 cut-off events. [2024-11-08 17:13:15,648 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-08 17:13:15,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 820 events. 108/820 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4890 event pairs, 60 based on Foata normal form. 0/738 useless extension candidates. Maximal degree in co-relation 1149. Up to 189 conditions per place. [2024-11-08 17:13:15,653 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 27 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2024-11-08 17:13:15,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 141 transitions, 395 flow [2024-11-08 17:13:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-11-08 17:13:15,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8401826484018264 [2024-11-08 17:13:15,655 INFO L175 Difference]: Start difference. First operand has 135 places, 134 transitions, 315 flow. Second operand 3 states and 368 transitions. [2024-11-08 17:13:15,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 141 transitions, 395 flow [2024-11-08 17:13:15,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 141 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:13:15,660 INFO L231 Difference]: Finished difference. Result has 137 places, 137 transitions, 335 flow [2024-11-08 17:13:15,661 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=335, PETRI_PLACES=137, PETRI_TRANSITIONS=137} [2024-11-08 17:13:15,661 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 3 predicate places. [2024-11-08 17:13:15,661 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 137 transitions, 335 flow [2024-11-08 17:13:15,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:15,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:15,662 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:15,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:13:15,663 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 17:13:15,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:15,663 INFO L85 PathProgramCache]: Analyzing trace with hash 609788935, now seen corresponding path program 1 times [2024-11-08 17:13:15,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:15,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447097584] [2024-11-08 17:13:15,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:15,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:15,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:13:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:15,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:13:15,752 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:13:15,753 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-08 17:13:15,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-08 17:13:15,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-08 17:13:15,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-08 17:13:15,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-08 17:13:15,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-08 17:13:15,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-08 17:13:15,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-08 17:13:15,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-08 17:13:15,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-08 17:13:15,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-08 17:13:15,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-08 17:13:15,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:13:15,764 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 17:13:15,766 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:13:15,767 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:13:15,822 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:13:15,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 195 transitions, 406 flow [2024-11-08 17:13:15,890 INFO L124 PetriNetUnfolderBase]: 40/354 cut-off events. [2024-11-08 17:13:15,890 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:13:15,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 354 events. 40/354 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1236 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 213. Up to 9 conditions per place. [2024-11-08 17:13:15,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 195 transitions, 406 flow [2024-11-08 17:13:15,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 195 transitions, 406 flow [2024-11-08 17:13:15,901 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:13:15,903 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;@51a96a28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:13:15,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-08 17:13:15,909 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:13:15,909 INFO L124 PetriNetUnfolderBase]: 3/47 cut-off events. [2024-11-08 17:13:15,909 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:13:15,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:15,909 INFO L204 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] [2024-11-08 17:13:15,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:15,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1987811498, now seen corresponding path program 1 times [2024-11-08 17:13:15,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:15,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10163268] [2024-11-08 17:13:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:15,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:15,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:15,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10163268] [2024-11-08 17:13:15,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10163268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:15,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:15,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:15,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497387322] [2024-11-08 17:13:15,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:15,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:13:15,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:15,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:13:15,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:13:15,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 195 [2024-11-08 17:13:15,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 195 transitions, 406 flow. Second operand has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:15,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:15,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 195 [2024-11-08 17:13:15,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:16,429 INFO L124 PetriNetUnfolderBase]: 434/2628 cut-off events. [2024-11-08 17:13:16,429 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-08 17:13:16,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3387 conditions, 2628 events. 434/2628 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 21201 event pairs, 414 based on Foata normal form. 456/2803 useless extension candidates. Maximal degree in co-relation 2813. Up to 716 conditions per place. [2024-11-08 17:13:16,453 INFO L140 encePairwiseOnDemand]: 178/195 looper letters, 20 selfloop transitions, 0 changer transitions 0/176 dead transitions. [2024-11-08 17:13:16,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 176 transitions, 408 flow [2024-11-08 17:13:16,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:13:16,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-08 17:13:16,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 351 transitions. [2024-11-08 17:13:16,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-08 17:13:16,455 INFO L175 Difference]: Start difference. First operand has 178 places, 195 transitions, 406 flow. Second operand 2 states and 351 transitions. [2024-11-08 17:13:16,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 176 transitions, 408 flow [2024-11-08 17:13:16,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 176 transitions, 408 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:13:16,460 INFO L231 Difference]: Finished difference. Result has 177 places, 176 transitions, 368 flow [2024-11-08 17:13:16,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=368, PETRI_PLACES=177, PETRI_TRANSITIONS=176} [2024-11-08 17:13:16,463 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, -1 predicate places. [2024-11-08 17:13:16,464 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 176 transitions, 368 flow [2024-11-08 17:13:16,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:16,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:16,465 INFO L204 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] [2024-11-08 17:13:16,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:13:16,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:16,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:16,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1009823550, now seen corresponding path program 1 times [2024-11-08 17:13:16,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:16,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794187909] [2024-11-08 17:13:16,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:16,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:16,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794187909] [2024-11-08 17:13:16,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794187909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:16,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:16,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:16,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857073382] [2024-11-08 17:13:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:16,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:16,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:16,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:16,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:16,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 195 [2024-11-08 17:13:16,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 176 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:16,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:16,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 195 [2024-11-08 17:13:16,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:17,278 INFO L124 PetriNetUnfolderBase]: 874/4480 cut-off events. [2024-11-08 17:13:17,278 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-08 17:13:17,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5890 conditions, 4480 events. 874/4480 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 41674 event pairs, 703 based on Foata normal form. 2/4011 useless extension candidates. Maximal degree in co-relation 5885. Up to 1359 conditions per place. [2024-11-08 17:13:17,369 INFO L140 encePairwiseOnDemand]: 191/195 looper letters, 32 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-11-08 17:13:17,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 183 transitions, 450 flow [2024-11-08 17:13:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:17,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:17,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2024-11-08 17:13:17,371 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8307692307692308 [2024-11-08 17:13:17,371 INFO L175 Difference]: Start difference. First operand has 177 places, 176 transitions, 368 flow. Second operand 3 states and 486 transitions. [2024-11-08 17:13:17,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 183 transitions, 450 flow [2024-11-08 17:13:17,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 183 transitions, 450 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:13:17,377 INFO L231 Difference]: Finished difference. Result has 180 places, 177 transitions, 382 flow [2024-11-08 17:13:17,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=180, PETRI_TRANSITIONS=177} [2024-11-08 17:13:17,378 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 2 predicate places. [2024-11-08 17:13:17,378 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 177 transitions, 382 flow [2024-11-08 17:13:17,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:17,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:17,380 INFO L204 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] [2024-11-08 17:13:17,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:13:17,380 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:17,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:17,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1661408148, now seen corresponding path program 1 times [2024-11-08 17:13:17,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:17,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042399060] [2024-11-08 17:13:17,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:17,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:17,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:17,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042399060] [2024-11-08 17:13:17,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042399060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:17,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:17,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:13:17,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496942459] [2024-11-08 17:13:17,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:17,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:13:17,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:17,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:13:17,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:13:17,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 195 [2024-11-08 17:13:17,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 177 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:17,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:17,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 195 [2024-11-08 17:13:17,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:19,077 INFO L124 PetriNetUnfolderBase]: 1894/6329 cut-off events. [2024-11-08 17:13:19,078 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-08 17:13:19,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9398 conditions, 6329 events. 1894/6329 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 60168 event pairs, 168 based on Foata normal form. 0/5774 useless extension candidates. Maximal degree in co-relation 9391. Up to 2015 conditions per place. [2024-11-08 17:13:19,135 INFO L140 encePairwiseOnDemand]: 189/195 looper letters, 80 selfloop transitions, 6 changer transitions 0/224 dead transitions. [2024-11-08 17:13:19,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 224 transitions, 648 flow [2024-11-08 17:13:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:13:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:13:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 920 transitions. [2024-11-08 17:13:19,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7863247863247863 [2024-11-08 17:13:19,139 INFO L175 Difference]: Start difference. First operand has 180 places, 177 transitions, 382 flow. Second operand 6 states and 920 transitions. [2024-11-08 17:13:19,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 224 transitions, 648 flow [2024-11-08 17:13:19,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 224 transitions, 646 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:13:19,146 INFO L231 Difference]: Finished difference. Result has 183 places, 176 transitions, 390 flow [2024-11-08 17:13:19,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=390, PETRI_PLACES=183, PETRI_TRANSITIONS=176} [2024-11-08 17:13:19,149 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 5 predicate places. [2024-11-08 17:13:19,150 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 176 transitions, 390 flow [2024-11-08 17:13:19,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:19,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:19,151 INFO L204 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] [2024-11-08 17:13:19,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:13:19,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:19,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:19,152 INFO L85 PathProgramCache]: Analyzing trace with hash 277223325, now seen corresponding path program 1 times [2024-11-08 17:13:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:19,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089638124] [2024-11-08 17:13:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:19,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:19,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:19,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089638124] [2024-11-08 17:13:19,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089638124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:19,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:19,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:19,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679957709] [2024-11-08 17:13:19,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:19,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:19,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:19,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:19,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:19,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 195 [2024-11-08 17:13:19,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 176 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:19,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:19,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 195 [2024-11-08 17:13:19,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:21,601 INFO L124 PetriNetUnfolderBase]: 4066/14928 cut-off events. [2024-11-08 17:13:21,601 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-08 17:13:21,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21482 conditions, 14928 events. 4066/14928 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 166839 event pairs, 1547 based on Foata normal form. 0/13210 useless extension candidates. Maximal degree in co-relation 21475. Up to 3516 conditions per place. [2024-11-08 17:13:21,720 INFO L140 encePairwiseOnDemand]: 176/195 looper letters, 58 selfloop transitions, 14 changer transitions 0/209 dead transitions. [2024-11-08 17:13:21,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 209 transitions, 611 flow [2024-11-08 17:13:21,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:21,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:21,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-11-08 17:13:21,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8393162393162393 [2024-11-08 17:13:21,723 INFO L175 Difference]: Start difference. First operand has 183 places, 176 transitions, 390 flow. Second operand 3 states and 491 transitions. [2024-11-08 17:13:21,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 209 transitions, 611 flow [2024-11-08 17:13:21,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 209 transitions, 599 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:13:21,729 INFO L231 Difference]: Finished difference. Result has 182 places, 190 transitions, 500 flow [2024-11-08 17:13:21,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=182, PETRI_TRANSITIONS=190} [2024-11-08 17:13:21,730 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2024-11-08 17:13:21,730 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 190 transitions, 500 flow [2024-11-08 17:13:21,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:21,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:21,731 INFO L204 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] [2024-11-08 17:13:21,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:13:21,732 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:21,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:21,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1025221114, now seen corresponding path program 1 times [2024-11-08 17:13:21,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:21,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608973650] [2024-11-08 17:13:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:21,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:21,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:21,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608973650] [2024-11-08 17:13:21,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608973650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:21,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:21,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:21,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212263792] [2024-11-08 17:13:21,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:21,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:21,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:21,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:21,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:21,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 195 [2024-11-08 17:13:21,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 190 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:21,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:21,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 195 [2024-11-08 17:13:21,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:24,016 INFO L124 PetriNetUnfolderBase]: 4340/17214 cut-off events. [2024-11-08 17:13:24,016 INFO L125 PetriNetUnfolderBase]: For 4384/4576 co-relation queries the response was YES. [2024-11-08 17:13:24,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28033 conditions, 17214 events. 4340/17214 cut-off events. For 4384/4576 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 200812 event pairs, 2405 based on Foata normal form. 46/15508 useless extension candidates. Maximal degree in co-relation 28025. Up to 5615 conditions per place. [2024-11-08 17:13:24,118 INFO L140 encePairwiseOnDemand]: 186/195 looper letters, 52 selfloop transitions, 14 changer transitions 0/214 dead transitions. [2024-11-08 17:13:24,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 214 transitions, 718 flow [2024-11-08 17:13:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-11-08 17:13:24,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8290598290598291 [2024-11-08 17:13:24,120 INFO L175 Difference]: Start difference. First operand has 182 places, 190 transitions, 500 flow. Second operand 3 states and 485 transitions. [2024-11-08 17:13:24,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 214 transitions, 718 flow [2024-11-08 17:13:24,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 214 transitions, 680 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:13:24,132 INFO L231 Difference]: Finished difference. Result has 184 places, 202 transitions, 598 flow [2024-11-08 17:13:24,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=184, PETRI_TRANSITIONS=202} [2024-11-08 17:13:24,133 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 6 predicate places. [2024-11-08 17:13:24,133 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 202 transitions, 598 flow [2024-11-08 17:13:24,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:24,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:24,134 INFO L204 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] [2024-11-08 17:13:24,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:13:24,134 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:24,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:24,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1010386220, now seen corresponding path program 1 times [2024-11-08 17:13:24,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:24,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390867049] [2024-11-08 17:13:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:24,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:24,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:24,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390867049] [2024-11-08 17:13:24,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390867049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:13:24,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871287492] [2024-11-08 17:13:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:24,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:13:24,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:24,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:13:24,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:13:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:24,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:13:24,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:13:24,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:24,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:13:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:24,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871287492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:13:24,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:13:24,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 17:13:24,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803738900] [2024-11-08 17:13:24,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:13:24,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:13:24,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:24,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:13:24,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:13:24,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 195 [2024-11-08 17:13:24,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 202 transitions, 598 flow. Second operand has 10 states, 10 states have (on average 148.8) internal successors, (1488), 10 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:24,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:24,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 195 [2024-11-08 17:13:24,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:25,350 INFO L124 PetriNetUnfolderBase]: 851/3197 cut-off events. [2024-11-08 17:13:25,351 INFO L125 PetriNetUnfolderBase]: For 270/287 co-relation queries the response was YES. [2024-11-08 17:13:25,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5095 conditions, 3197 events. 851/3197 cut-off events. For 270/287 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 27808 event pairs, 13 based on Foata normal form. 210/3220 useless extension candidates. Maximal degree in co-relation 5086. Up to 717 conditions per place. [2024-11-08 17:13:25,377 INFO L140 encePairwiseOnDemand]: 189/195 looper letters, 75 selfloop transitions, 7 changer transitions 0/205 dead transitions. [2024-11-08 17:13:25,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 205 transitions, 720 flow [2024-11-08 17:13:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:13:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:13:25,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1400 transitions. [2024-11-08 17:13:25,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7977207977207977 [2024-11-08 17:13:25,382 INFO L175 Difference]: Start difference. First operand has 184 places, 202 transitions, 598 flow. Second operand 9 states and 1400 transitions. [2024-11-08 17:13:25,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 205 transitions, 720 flow [2024-11-08 17:13:25,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 205 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:13:25,389 INFO L231 Difference]: Finished difference. Result has 144 places, 147 transitions, 434 flow [2024-11-08 17:13:25,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=144, PETRI_TRANSITIONS=147} [2024-11-08 17:13:25,392 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, -34 predicate places. [2024-11-08 17:13:25,392 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 147 transitions, 434 flow [2024-11-08 17:13:25,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.8) internal successors, (1488), 10 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:25,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:25,394 INFO L204 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] [2024-11-08 17:13:25,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:13:25,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222d8407-0e44-4cc7-9f5d-c09231f2d413/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:13:25,595 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:25,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:25,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1767826324, now seen corresponding path program 1 times [2024-11-08 17:13:25,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:25,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094095284] [2024-11-08 17:13:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:25,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:25,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:25,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094095284] [2024-11-08 17:13:25,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094095284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:25,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:25,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:25,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539496189] [2024-11-08 17:13:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:25,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:25,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:25,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:25,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:25,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 195 [2024-11-08 17:13:25,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 147 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:25,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:25,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 195 [2024-11-08 17:13:25,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:25,992 INFO L124 PetriNetUnfolderBase]: 256/1236 cut-off events. [2024-11-08 17:13:25,992 INFO L125 PetriNetUnfolderBase]: For 542/573 co-relation queries the response was YES. [2024-11-08 17:13:25,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2301 conditions, 1236 events. 256/1236 cut-off events. For 542/573 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 8275 event pairs, 135 based on Foata normal form. 9/1165 useless extension candidates. Maximal degree in co-relation 2292. Up to 457 conditions per place. [2024-11-08 17:13:26,005 INFO L140 encePairwiseOnDemand]: 187/195 looper letters, 45 selfloop transitions, 10 changer transitions 0/162 dead transitions. [2024-11-08 17:13:26,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 162 transitions, 603 flow [2024-11-08 17:13:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2024-11-08 17:13:26,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8068376068376069 [2024-11-08 17:13:26,008 INFO L175 Difference]: Start difference. First operand has 144 places, 147 transitions, 434 flow. Second operand 3 states and 472 transitions. [2024-11-08 17:13:26,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 162 transitions, 603 flow [2024-11-08 17:13:26,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 162 transitions, 588 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-08 17:13:26,014 INFO L231 Difference]: Finished difference. Result has 143 places, 155 transitions, 517 flow [2024-11-08 17:13:26,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=143, PETRI_TRANSITIONS=155} [2024-11-08 17:13:26,015 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, -35 predicate places. [2024-11-08 17:13:26,015 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 155 transitions, 517 flow [2024-11-08 17:13:26,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:26,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:26,016 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:26,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:13:26,017 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:26,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:26,017 INFO L85 PathProgramCache]: Analyzing trace with hash 413872767, now seen corresponding path program 1 times [2024-11-08 17:13:26,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:26,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682146515] [2024-11-08 17:13:26,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:26,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 17:13:26,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:26,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682146515] [2024-11-08 17:13:26,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682146515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:26,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:26,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:26,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320628829] [2024-11-08 17:13:26,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:26,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:26,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:26,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:26,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:26,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 195 [2024-11-08 17:13:26,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 155 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:26,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:26,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 195 [2024-11-08 17:13:26,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:26,388 INFO L124 PetriNetUnfolderBase]: 292/1404 cut-off events. [2024-11-08 17:13:26,388 INFO L125 PetriNetUnfolderBase]: For 1048/1073 co-relation queries the response was YES. [2024-11-08 17:13:26,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 1404 events. 292/1404 cut-off events. For 1048/1073 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9602 event pairs, 139 based on Foata normal form. 6/1321 useless extension candidates. Maximal degree in co-relation 2797. Up to 498 conditions per place. [2024-11-08 17:13:26,399 INFO L140 encePairwiseOnDemand]: 187/195 looper letters, 46 selfloop transitions, 14 changer transitions 0/169 dead transitions. [2024-11-08 17:13:26,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 169 transitions, 689 flow [2024-11-08 17:13:26,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2024-11-08 17:13:26,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8051282051282052 [2024-11-08 17:13:26,401 INFO L175 Difference]: Start difference. First operand has 143 places, 155 transitions, 517 flow. Second operand 3 states and 471 transitions. [2024-11-08 17:13:26,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 169 transitions, 689 flow [2024-11-08 17:13:26,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 169 transitions, 653 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-08 17:13:26,409 INFO L231 Difference]: Finished difference. Result has 145 places, 163 transitions, 595 flow [2024-11-08 17:13:26,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=595, PETRI_PLACES=145, PETRI_TRANSITIONS=163} [2024-11-08 17:13:26,410 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, -33 predicate places. [2024-11-08 17:13:26,410 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 163 transitions, 595 flow [2024-11-08 17:13:26,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:26,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:26,411 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:26,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:13:26,411 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 17:13:26,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:26,412 INFO L85 PathProgramCache]: Analyzing trace with hash -179294479, now seen corresponding path program 1 times [2024-11-08 17:13:26,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:26,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114626075] [2024-11-08 17:13:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:26,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:26,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:13:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:26,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:13:26,508 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:13:26,508 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-08 17:13:26,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-08 17:13:26,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-08 17:13:26,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-08 17:13:26,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-08 17:13:26,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-08 17:13:26,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-08 17:13:26,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-08 17:13:26,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-08 17:13:26,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-08 17:13:26,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-08 17:13:26,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-08 17:13:26,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-08 17:13:26,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-08 17:13:26,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-08 17:13:26,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-08 17:13:26,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:13:26,512 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:26,513 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:13:26,513 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 17:13:26,556 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 17:13:26,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 244 transitions, 515 flow [2024-11-08 17:13:26,630 INFO L124 PetriNetUnfolderBase]: 62/544 cut-off events. [2024-11-08 17:13:26,630 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 17:13:26,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 544 events. 62/544 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2048 event pairs, 1 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 362. Up to 16 conditions per place. [2024-11-08 17:13:26,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 244 transitions, 515 flow [2024-11-08 17:13:26,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 244 transitions, 515 flow [2024-11-08 17:13:26,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:13:26,642 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;@51a96a28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:13:26,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-08 17:13:26,646 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:13:26,646 INFO L124 PetriNetUnfolderBase]: 3/47 cut-off events. [2024-11-08 17:13:26,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:13:26,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:26,647 INFO L204 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] [2024-11-08 17:13:26,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 17:13:26,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:26,648 INFO L85 PathProgramCache]: Analyzing trace with hash 581128022, now seen corresponding path program 1 times [2024-11-08 17:13:26,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:26,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287077216] [2024-11-08 17:13:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:26,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:26,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287077216] [2024-11-08 17:13:26,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287077216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:26,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:26,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:26,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092655353] [2024-11-08 17:13:26,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:26,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:13:26,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:26,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:13:26,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:13:26,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 244 [2024-11-08 17:13:26,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 244 transitions, 515 flow. Second operand has 2 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:26,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:26,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 244 [2024-11-08 17:13:26,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:29,924 INFO L124 PetriNetUnfolderBase]: 4905/20399 cut-off events. [2024-11-08 17:13:29,924 INFO L125 PetriNetUnfolderBase]: For 940/940 co-relation queries the response was YES. [2024-11-08 17:13:29,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27824 conditions, 20399 events. 4905/20399 cut-off events. For 940/940 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 243791 event pairs, 4795 based on Foata normal form. 4519/22900 useless extension candidates. Maximal degree in co-relation 23382. Up to 6995 conditions per place. [2024-11-08 17:13:30,068 INFO L140 encePairwiseOnDemand]: 221/244 looper letters, 28 selfloop transitions, 0 changer transitions 0/219 dead transitions. [2024-11-08 17:13:30,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 219 transitions, 521 flow [2024-11-08 17:13:30,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:13:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-08 17:13:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 435 transitions. [2024-11-08 17:13:30,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8913934426229508 [2024-11-08 17:13:30,070 INFO L175 Difference]: Start difference. First operand has 222 places, 244 transitions, 515 flow. Second operand 2 states and 435 transitions. [2024-11-08 17:13:30,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 219 transitions, 521 flow [2024-11-08 17:13:30,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 219 transitions, 521 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:13:30,076 INFO L231 Difference]: Finished difference. Result has 221 places, 219 transitions, 465 flow [2024-11-08 17:13:30,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=465, PETRI_PLACES=221, PETRI_TRANSITIONS=219} [2024-11-08 17:13:30,077 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, -1 predicate places. [2024-11-08 17:13:30,077 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 219 transitions, 465 flow [2024-11-08 17:13:30,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:30,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:30,077 INFO L204 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] [2024-11-08 17:13:30,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:13:30,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 17:13:30,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:30,078 INFO L85 PathProgramCache]: Analyzing trace with hash 154514878, now seen corresponding path program 1 times [2024-11-08 17:13:30,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:30,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398985314] [2024-11-08 17:13:30,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:30,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:30,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398985314] [2024-11-08 17:13:30,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398985314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:30,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:30,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:13:30,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918195924] [2024-11-08 17:13:30,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:30,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:30,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:30,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:30,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:30,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 244 [2024-11-08 17:13:30,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 219 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:30,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:30,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 244 [2024-11-08 17:13:30,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:34,975 INFO L124 PetriNetUnfolderBase]: 9442/36055 cut-off events. [2024-11-08 17:13:34,975 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-11-08 17:13:35,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49693 conditions, 36055 events. 9442/36055 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 460453 event pairs, 8324 based on Foata normal form. 2/32573 useless extension candidates. Maximal degree in co-relation 49687. Up to 13201 conditions per place. [2024-11-08 17:13:35,221 INFO L140 encePairwiseOnDemand]: 240/244 looper letters, 40 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2024-11-08 17:13:35,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 226 transitions, 563 flow [2024-11-08 17:13:35,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:13:35,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:13:35,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 599 transitions. [2024-11-08 17:13:35,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8183060109289617 [2024-11-08 17:13:35,223 INFO L175 Difference]: Start difference. First operand has 221 places, 219 transitions, 465 flow. Second operand 3 states and 599 transitions. [2024-11-08 17:13:35,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 226 transitions, 563 flow [2024-11-08 17:13:35,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 226 transitions, 563 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:13:35,228 INFO L231 Difference]: Finished difference. Result has 224 places, 220 transitions, 479 flow [2024-11-08 17:13:35,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=224, PETRI_TRANSITIONS=220} [2024-11-08 17:13:35,229 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 2 predicate places. [2024-11-08 17:13:35,230 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 220 transitions, 479 flow [2024-11-08 17:13:35,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:35,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:35,230 INFO L204 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] [2024-11-08 17:13:35,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:13:35,231 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 17:13:35,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:35,231 INFO L85 PathProgramCache]: Analyzing trace with hash 48535700, now seen corresponding path program 1 times [2024-11-08 17:13:35,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:35,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698609770] [2024-11-08 17:13:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:35,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:35,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698609770] [2024-11-08 17:13:35,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698609770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:35,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:35,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:13:35,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008556289] [2024-11-08 17:13:35,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:35,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:13:35,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:35,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:13:35,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:13:35,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 244 [2024-11-08 17:13:35,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 220 transitions, 479 flow. Second operand has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:35,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:35,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 244 [2024-11-08 17:13:35,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:13:44,740 INFO L124 PetriNetUnfolderBase]: 19967/66624 cut-off events. [2024-11-08 17:13:44,740 INFO L125 PetriNetUnfolderBase]: For 1507/1507 co-relation queries the response was YES. [2024-11-08 17:13:44,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95644 conditions, 66624 events. 19967/66624 cut-off events. For 1507/1507 co-relation queries the response was YES. Maximal size of possible extension queue 1366. Compared 898239 event pairs, 7382 based on Foata normal form. 0/60697 useless extension candidates. Maximal degree in co-relation 95636. Up to 20118 conditions per place. [2024-11-08 17:13:45,367 INFO L140 encePairwiseOnDemand]: 238/244 looper letters, 112 selfloop transitions, 6 changer transitions 0/291 dead transitions. [2024-11-08 17:13:45,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 291 transitions, 857 flow [2024-11-08 17:13:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:13:45,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:13:45,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1162 transitions. [2024-11-08 17:13:45,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7937158469945356 [2024-11-08 17:13:45,371 INFO L175 Difference]: Start difference. First operand has 224 places, 220 transitions, 479 flow. Second operand 6 states and 1162 transitions. [2024-11-08 17:13:45,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 291 transitions, 857 flow [2024-11-08 17:13:45,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 291 transitions, 855 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:13:45,380 INFO L231 Difference]: Finished difference. Result has 227 places, 219 transitions, 487 flow [2024-11-08 17:13:45,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=487, PETRI_PLACES=227, PETRI_TRANSITIONS=219} [2024-11-08 17:13:45,381 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 5 predicate places. [2024-11-08 17:13:45,381 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 219 transitions, 487 flow [2024-11-08 17:13:45,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:45,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:13:45,382 INFO L204 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] [2024-11-08 17:13:45,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:13:45,382 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 17:13:45,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:45,382 INFO L85 PathProgramCache]: Analyzing trace with hash -31479360, now seen corresponding path program 1 times [2024-11-08 17:13:45,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:45,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111364664] [2024-11-08 17:13:45,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:45,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:45,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:45,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111364664] [2024-11-08 17:13:45,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111364664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:45,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:45,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:13:45,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901583674] [2024-11-08 17:13:45,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:45,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:13:45,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:13:45,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:13:45,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 244 [2024-11-08 17:13:45,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 219 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:45,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:13:45,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 244 [2024-11-08 17:13:45,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand