./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/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_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/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_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/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 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:29:32,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:29:32,439 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 18:29:32,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:29:32,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:29:32,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:29:32,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:29:32,495 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:29:32,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:29:32,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:29:32,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:29:32,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:29:32,501 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:29:32,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:29:32,505 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:29:32,505 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:29:32,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:29:32,506 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:29:32,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:29:32,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:29:32,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:29:32,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:29:32,509 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:29:32,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:29:32,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:29:32,510 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:29:32,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:29:32,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:29:32,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:29:32,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:29:32,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:29:32,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:29:32,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:29:32,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:29:32,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:29:32,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:29:32,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:29:32,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:29:32,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:29:32,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:29:32,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:29:32,518 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_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2024-11-08 18:29:32,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:29:32,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:29:32,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:29:32,888 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:29:32,889 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:29:32,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i Unable to find full path for "g++" [2024-11-08 18:29:35,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:29:35,718 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:29:35,719 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-08 18:29:35,743 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/data/dac2a5e64/8f930b16362748dd95890ec839896cbb/FLAGe6d645549 [2024-11-08 18:29:35,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/data/dac2a5e64/8f930b16362748dd95890ec839896cbb [2024-11-08 18:29:35,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:29:35,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:29:35,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:29:35,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:29:35,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:29:35,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:29:35" (1/1) ... [2024-11-08 18:29:36,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61614325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:36, skipping insertion in model container [2024-11-08 18:29:36,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:29:35" (1/1) ... [2024-11-08 18:29:36,073 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:29:36,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:29:36,874 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:29:36,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:29:37,022 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:29:37,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37 WrapperNode [2024-11-08 18:29:37,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:29:37,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:29:37,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:29:37,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:29:37,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,107 INFO L138 Inliner]: procedures = 272, calls = 96, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 335 [2024-11-08 18:29:37,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:29:37,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:29:37,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:29:37,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:29:37,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:29:37,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:29:37,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:29:37,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:29:37,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:29:37,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:37,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:29:37,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:29:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:29:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:29:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:29:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 18:29:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 18:29:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:29:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:29:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:29:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:29:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 18:29:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:29:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:29:37,289 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 18:29:37,533 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:29:37,536 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:29:38,453 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:29:38,454 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:29:38,529 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:29:38,530 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 18:29:38,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:29:38 BoogieIcfgContainer [2024-11-08 18:29:38,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:29:38,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:29:38,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:29:38,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:29:38,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:29:35" (1/3) ... [2024-11-08 18:29:38,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbd6756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:29:38, skipping insertion in model container [2024-11-08 18:29:38,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37" (2/3) ... [2024-11-08 18:29:38,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbd6756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:29:38, skipping insertion in model container [2024-11-08 18:29:38,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:29:38" (3/3) ... [2024-11-08 18:29:38,544 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2024-11-08 18:29:38,561 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:29:38,561 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 18:29:38,561 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:29:38,661 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 18:29:38,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 357 transitions, 721 flow [2024-11-08 18:29:39,035 INFO L124 PetriNetUnfolderBase]: 52/501 cut-off events. [2024-11-08 18:29:39,036 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:29:39,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 501 events. 52/501 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1876 event pairs, 0 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 261. Up to 8 conditions per place. [2024-11-08 18:29:39,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 357 transitions, 721 flow [2024-11-08 18:29:39,068 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 325 places, 357 transitions, 721 flow [2024-11-08 18:29:39,092 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:29:39,105 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;@1475180c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:29:39,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-08 18:29:39,136 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:29:39,136 INFO L124 PetriNetUnfolderBase]: 5/129 cut-off events. [2024-11-08 18:29:39,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:29:39,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:39,138 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, 1, 1, 1, 1, 1, 1, 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 18:29:39,138 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 18:29:39,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:39,146 INFO L85 PathProgramCache]: Analyzing trace with hash 140218626, now seen corresponding path program 1 times [2024-11-08 18:29:39,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:39,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588734762] [2024-11-08 18:29:39,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:39,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:39,738 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 18:29:39,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:39,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588734762] [2024-11-08 18:29:39,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588734762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:39,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:39,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:29:39,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659884634] [2024-11-08 18:29:39,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:39,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:29:39,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:39,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:29:39,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:29:39,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 357 [2024-11-08 18:29:39,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 357 transitions, 721 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 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 18:29:39,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:39,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 357 [2024-11-08 18:29:39,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:40,338 INFO L124 PetriNetUnfolderBase]: 115/1418 cut-off events. [2024-11-08 18:29:40,338 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-08 18:29:40,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1418 events. 115/1418 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 9098 event pairs, 72 based on Foata normal form. 180/1469 useless extension candidates. Maximal degree in co-relation 1357. Up to 188 conditions per place. [2024-11-08 18:29:40,357 INFO L140 encePairwiseOnDemand]: 329/357 looper letters, 24 selfloop transitions, 2 changer transitions 0/330 dead transitions. [2024-11-08 18:29:40,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 330 transitions, 719 flow [2024-11-08 18:29:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:29:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:29:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 970 transitions. [2024-11-08 18:29:40,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9056956115779645 [2024-11-08 18:29:40,389 INFO L175 Difference]: Start difference. First operand has 325 places, 357 transitions, 721 flow. Second operand 3 states and 970 transitions. [2024-11-08 18:29:40,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 330 transitions, 719 flow [2024-11-08 18:29:40,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 330 transitions, 719 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:29:40,410 INFO L231 Difference]: Finished difference. Result has 324 places, 330 transitions, 679 flow [2024-11-08 18:29:40,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=324, PETRI_TRANSITIONS=330} [2024-11-08 18:29:40,422 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -1 predicate places. [2024-11-08 18:29:40,422 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 330 transitions, 679 flow [2024-11-08 18:29:40,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 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 18:29:40,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:40,425 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:40,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:29:40,426 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 18:29:40,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:40,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1506798294, now seen corresponding path program 1 times [2024-11-08 18:29:40,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:40,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799925500] [2024-11-08 18:29:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:40,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:40,822 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 18:29:40,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:40,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799925500] [2024-11-08 18:29:40,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799925500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:29:40,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060307990] [2024-11-08 18:29:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:40,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:40,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:40,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:29:40,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:29:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:40,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:29:41,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:41,101 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 18:29:41,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:29:41,169 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 18:29:41,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060307990] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:29:41,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:29:41,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 18:29:41,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012561381] [2024-11-08 18:29:41,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:29:41,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:29:41,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:41,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:29:41,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:29:41,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2024-11-08 18:29:41,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 330 transitions, 679 flow. Second operand has 10 states, 10 states have (on average 304.1) internal successors, (3041), 10 states have internal predecessors, (3041), 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 18:29:41,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:41,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2024-11-08 18:29:41,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:41,869 INFO L124 PetriNetUnfolderBase]: 114/1425 cut-off events. [2024-11-08 18:29:41,869 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-08 18:29:41,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1640 conditions, 1425 events. 114/1425 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 9064 event pairs, 72 based on Foata normal form. 4/1300 useless extension candidates. Maximal degree in co-relation 1543. Up to 187 conditions per place. [2024-11-08 18:29:41,884 INFO L140 encePairwiseOnDemand]: 350/357 looper letters, 30 selfloop transitions, 9 changer transitions 0/339 dead transitions. [2024-11-08 18:29:41,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 339 transitions, 775 flow [2024-11-08 18:29:41,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:29:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:29:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2761 transitions. [2024-11-08 18:29:41,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8593215063803299 [2024-11-08 18:29:41,895 INFO L175 Difference]: Start difference. First operand has 324 places, 330 transitions, 679 flow. Second operand 9 states and 2761 transitions. [2024-11-08 18:29:41,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 339 transitions, 775 flow [2024-11-08 18:29:41,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 339 transitions, 773 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:29:41,909 INFO L231 Difference]: Finished difference. Result has 334 places, 335 transitions, 723 flow [2024-11-08 18:29:41,910 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=723, PETRI_PLACES=334, PETRI_TRANSITIONS=335} [2024-11-08 18:29:41,911 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, 9 predicate places. [2024-11-08 18:29:41,911 INFO L471 AbstractCegarLoop]: Abstraction has has 334 places, 335 transitions, 723 flow [2024-11-08 18:29:41,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 304.1) internal successors, (3041), 10 states have internal predecessors, (3041), 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 18:29:41,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:41,914 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:29:41,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:29:42,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:42,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 18:29:42,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:42,116 INFO L85 PathProgramCache]: Analyzing trace with hash -483236998, now seen corresponding path program 2 times [2024-11-08 18:29:42,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:42,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121915224] [2024-11-08 18:29:42,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:42,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:42,583 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:42,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:42,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121915224] [2024-11-08 18:29:42,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121915224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:29:42,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750745366] [2024-11-08 18:29:42,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:29:42,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:42,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:42,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:29:42,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:29:42,761 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:29:42,762 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:29:42,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:29:42,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:42,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:29:42,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 18:29:43,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:29:43,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-08 18:29:43,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:29:43,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-08 18:29:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 18:29:43,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:29:43,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750745366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:43,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:29:43,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-08 18:29:43,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848430748] [2024-11-08 18:29:43,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:43,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:29:43,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:43,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:29:43,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:29:43,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 357 [2024-11-08 18:29:43,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 335 transitions, 723 flow. Second operand has 8 states, 8 states have (on average 254.125) internal successors, (2033), 8 states have internal predecessors, (2033), 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 18:29:43,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:43,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 357 [2024-11-08 18:29:43,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:45,152 INFO L124 PetriNetUnfolderBase]: 1516/5772 cut-off events. [2024-11-08 18:29:45,152 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 18:29:45,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8554 conditions, 5772 events. 1516/5772 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 51226 event pairs, 1025 based on Foata normal form. 2/5231 useless extension candidates. Maximal degree in co-relation 8427. Up to 2561 conditions per place. [2024-11-08 18:29:45,201 INFO L140 encePairwiseOnDemand]: 344/357 looper letters, 135 selfloop transitions, 11 changer transitions 0/403 dead transitions. [2024-11-08 18:29:45,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 403 transitions, 1151 flow [2024-11-08 18:29:45,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:29:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 18:29:45,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2173 transitions. [2024-11-08 18:29:45,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7608543417366946 [2024-11-08 18:29:45,210 INFO L175 Difference]: Start difference. First operand has 334 places, 335 transitions, 723 flow. Second operand 8 states and 2173 transitions. [2024-11-08 18:29:45,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 403 transitions, 1151 flow [2024-11-08 18:29:45,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 403 transitions, 1145 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-08 18:29:45,225 INFO L231 Difference]: Finished difference. Result has 345 places, 342 transitions, 786 flow [2024-11-08 18:29:45,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=786, PETRI_PLACES=345, PETRI_TRANSITIONS=342} [2024-11-08 18:29:45,227 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, 20 predicate places. [2024-11-08 18:29:45,227 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 342 transitions, 786 flow [2024-11-08 18:29:45,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 254.125) internal successors, (2033), 8 states have internal predecessors, (2033), 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 18:29:45,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:45,230 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:45,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:29:45,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:45,431 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 18:29:45,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:45,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1412455422, now seen corresponding path program 1 times [2024-11-08 18:29:45,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:45,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715402314] [2024-11-08 18:29:45,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:45,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:29:45,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:45,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715402314] [2024-11-08 18:29:45,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715402314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:29:45,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050034853] [2024-11-08 18:29:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:45,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:45,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:45,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:29:45,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:29:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:46,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:29:46,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:46,178 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:29:46,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:29:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:29:46,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050034853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:29:46,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:29:46,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-08 18:29:46,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287359617] [2024-11-08 18:29:46,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:29:46,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:29:46,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:29:46,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:29:46,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2024-11-08 18:29:46,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 342 transitions, 786 flow. Second operand has 18 states, 18 states have (on average 304.3333333333333) internal successors, (5478), 18 states have internal predecessors, (5478), 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 18:29:46,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:46,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2024-11-08 18:29:46,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:47,201 INFO L124 PetriNetUnfolderBase]: 128/1488 cut-off events. [2024-11-08 18:29:47,201 INFO L125 PetriNetUnfolderBase]: For 33/40 co-relation queries the response was YES. [2024-11-08 18:29:47,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1841 conditions, 1488 events. 128/1488 cut-off events. For 33/40 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9778 event pairs, 74 based on Foata normal form. 4/1362 useless extension candidates. Maximal degree in co-relation 1626. Up to 197 conditions per place. [2024-11-08 18:29:47,215 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 38 selfloop transitions, 21 changer transitions 0/366 dead transitions. [2024-11-08 18:29:47,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 366 transitions, 1004 flow [2024-11-08 18:29:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:29:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 18:29:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6405 transitions. [2024-11-08 18:29:47,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8543417366946778 [2024-11-08 18:29:47,231 INFO L175 Difference]: Start difference. First operand has 345 places, 342 transitions, 786 flow. Second operand 21 states and 6405 transitions. [2024-11-08 18:29:47,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 366 transitions, 1004 flow [2024-11-08 18:29:47,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 366 transitions, 997 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:29:47,241 INFO L231 Difference]: Finished difference. Result has 368 places, 355 transitions, 909 flow [2024-11-08 18:29:47,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=909, PETRI_PLACES=368, PETRI_TRANSITIONS=355} [2024-11-08 18:29:47,243 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, 43 predicate places. [2024-11-08 18:29:47,243 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 355 transitions, 909 flow [2024-11-08 18:29:47,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 304.3333333333333) internal successors, (5478), 18 states have internal predecessors, (5478), 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 18:29:47,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:47,248 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:47,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:29:47,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:47,449 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 18:29:47,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1425855326, now seen corresponding path program 2 times [2024-11-08 18:29:47,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:47,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844627095] [2024-11-08 18:29:47,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:47,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:29:48,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:48,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844627095] [2024-11-08 18:29:48,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844627095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:29:48,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911943490] [2024-11-08 18:29:48,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:29:48,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:48,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:48,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:29:48,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:29:48,278 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:29:48,278 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:29:48,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:29:48,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:48,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-08 18:29:48,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-08 18:29:48,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:29:48,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-08 18:29:48,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:29:48,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-08 18:29:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-08 18:29:48,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:29:48,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911943490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:48,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:29:48,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-08 18:29:48,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367278304] [2024-11-08 18:29:48,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:48,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:29:48,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:48,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:29:48,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:29:48,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 357 [2024-11-08 18:29:48,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 355 transitions, 909 flow. Second operand has 6 states, 6 states have (on average 257.6666666666667) internal successors, (1546), 6 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:48,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:48,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 357 [2024-11-08 18:29:48,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:50,992 INFO L124 PetriNetUnfolderBase]: 1572/5936 cut-off events. [2024-11-08 18:29:50,993 INFO L125 PetriNetUnfolderBase]: For 315/323 co-relation queries the response was YES. [2024-11-08 18:29:51,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9329 conditions, 5936 events. 1572/5936 cut-off events. For 315/323 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 52936 event pairs, 914 based on Foata normal form. 33/5438 useless extension candidates. Maximal degree in co-relation 9114. Up to 2684 conditions per place. [2024-11-08 18:29:51,045 INFO L140 encePairwiseOnDemand]: 330/357 looper letters, 107 selfloop transitions, 92 changer transitions 0/471 dead transitions. [2024-11-08 18:29:51,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 471 transitions, 1561 flow [2024-11-08 18:29:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:29:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:29:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1724 transitions. [2024-11-08 18:29:51,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8048552754435108 [2024-11-08 18:29:51,050 INFO L175 Difference]: Start difference. First operand has 368 places, 355 transitions, 909 flow. Second operand 6 states and 1724 transitions. [2024-11-08 18:29:51,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 471 transitions, 1561 flow [2024-11-08 18:29:51,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 471 transitions, 1537 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-08 18:29:51,066 INFO L231 Difference]: Finished difference. Result has 372 places, 439 transitions, 1493 flow [2024-11-08 18:29:51,067 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1493, PETRI_PLACES=372, PETRI_TRANSITIONS=439} [2024-11-08 18:29:51,068 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, 47 predicate places. [2024-11-08 18:29:51,069 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 439 transitions, 1493 flow [2024-11-08 18:29:51,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.6666666666667) internal successors, (1546), 6 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:51,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:51,071 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:51,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:29:51,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:51,271 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 18:29:51,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:51,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1251843201, now seen corresponding path program 1 times [2024-11-08 18:29:51,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:51,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208456762] [2024-11-08 18:29:51,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:51,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:29:52,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:52,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208456762] [2024-11-08 18:29:52,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208456762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:29:52,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700967594] [2024-11-08 18:29:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:52,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:52,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:52,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:29:52,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:29:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:52,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:29:52,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:29:52,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:29:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:29:52,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700967594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:29:52,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:29:52,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-08 18:29:52,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982760368] [2024-11-08 18:29:52,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:29:52,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:29:52,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:29:52,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:29:52,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 357 [2024-11-08 18:29:52,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 439 transitions, 1493 flow. Second operand has 23 states, 23 states have (on average 304.4782608695652) internal successors, (7003), 23 states have internal predecessors, (7003), 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 18:29:52,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:52,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 357 [2024-11-08 18:29:52,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:53,853 INFO L124 PetriNetUnfolderBase]: 290/2262 cut-off events. [2024-11-08 18:29:53,854 INFO L125 PetriNetUnfolderBase]: For 540/623 co-relation queries the response was YES. [2024-11-08 18:29:53,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 2262 events. 290/2262 cut-off events. For 540/623 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17407 event pairs, 72 based on Foata normal form. 3/2088 useless extension candidates. Maximal degree in co-relation 3368. Up to 438 conditions per place. [2024-11-08 18:29:53,876 INFO L140 encePairwiseOnDemand]: 351/357 looper letters, 44 selfloop transitions, 30 changer transitions 0/465 dead transitions. [2024-11-08 18:29:53,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 465 transitions, 1781 flow [2024-11-08 18:29:53,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 18:29:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-08 18:29:53,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9137 transitions. [2024-11-08 18:29:53,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8531279178338002 [2024-11-08 18:29:53,896 INFO L175 Difference]: Start difference. First operand has 372 places, 439 transitions, 1493 flow. Second operand 30 states and 9137 transitions. [2024-11-08 18:29:53,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 465 transitions, 1781 flow [2024-11-08 18:29:53,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 465 transitions, 1763 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-08 18:29:53,913 INFO L231 Difference]: Finished difference. Result has 405 places, 449 transitions, 1627 flow [2024-11-08 18:29:53,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=1475, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1627, PETRI_PLACES=405, PETRI_TRANSITIONS=449} [2024-11-08 18:29:53,917 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, 80 predicate places. [2024-11-08 18:29:53,917 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 449 transitions, 1627 flow [2024-11-08 18:29:53,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 304.4782608695652) internal successors, (7003), 23 states have internal predecessors, (7003), 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 18:29:53,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:53,922 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:53,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 18:29:54,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 18:29:54,126 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 18:29:54,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:54,126 INFO L85 PathProgramCache]: Analyzing trace with hash -987633415, now seen corresponding path program 2 times [2024-11-08 18:29:54,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:54,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261021097] [2024-11-08 18:29:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:54,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:29:54,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:29:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:29:54,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:29:54,270 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:29:54,272 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-08 18:29:54,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-08 18:29:54,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-08 18:29:54,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-08 18:29:54,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-08 18:29:54,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-08 18:29:54,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-08 18:29:54,280 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-08 18:29:54,280 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-08 18:29:54,280 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-08 18:29:54,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-08 18:29:54,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-08 18:29:54,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-08 18:29:54,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-08 18:29:54,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-08 18:29:54,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-08 18:29:54,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-08 18:29:54,281 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-08 18:29:54,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:29:54,282 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-08 18:29:54,287 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:29:54,289 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 18:29:54,378 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:29:54,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 427 places, 473 transitions, 962 flow [2024-11-08 18:29:54,668 INFO L124 PetriNetUnfolderBase]: 87/790 cut-off events. [2024-11-08 18:29:54,670 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:29:54,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 790 events. 87/790 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3736 event pairs, 0 based on Foata normal form. 0/667 useless extension candidates. Maximal degree in co-relation 503. Up to 12 conditions per place. [2024-11-08 18:29:54,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 427 places, 473 transitions, 962 flow [2024-11-08 18:29:54,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 427 places, 473 transitions, 962 flow [2024-11-08 18:29:54,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:29:54,701 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;@1475180c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:29:54,701 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-08 18:29:54,716 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:29:54,716 INFO L124 PetriNetUnfolderBase]: 5/129 cut-off events. [2024-11-08 18:29:54,716 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:29:54,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:54,716 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, 1, 1, 1, 1, 1, 1, 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 18:29:54,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 18:29:54,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1948097566, now seen corresponding path program 1 times [2024-11-08 18:29:54,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:54,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242121758] [2024-11-08 18:29:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:54,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:54,803 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 18:29:54,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:54,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242121758] [2024-11-08 18:29:54,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242121758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:54,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:54,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:29:54,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495364295] [2024-11-08 18:29:54,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:54,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:29:54,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:29:54,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:29:54,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 473 [2024-11-08 18:29:54,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 473 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 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 18:29:54,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:54,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 473 [2024-11-08 18:29:54,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:58,766 INFO L124 PetriNetUnfolderBase]: 1906/13149 cut-off events. [2024-11-08 18:29:58,766 INFO L125 PetriNetUnfolderBase]: For 126/133 co-relation queries the response was YES. [2024-11-08 18:29:58,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15814 conditions, 13149 events. 1906/13149 cut-off events. For 126/133 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 158463 event pairs, 1464 based on Foata normal form. 2532/14503 useless extension candidates. Maximal degree in co-relation 14025. Up to 2602 conditions per place. [2024-11-08 18:29:58,924 INFO L140 encePairwiseOnDemand]: 433/473 looper letters, 34 selfloop transitions, 2 changer transitions 0/432 dead transitions. [2024-11-08 18:29:58,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 432 transitions, 952 flow [2024-11-08 18:29:58,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:29:58,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:29:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1271 transitions. [2024-11-08 18:29:58,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8957011980267794 [2024-11-08 18:29:58,931 INFO L175 Difference]: Start difference. First operand has 427 places, 473 transitions, 962 flow. Second operand 3 states and 1271 transitions. [2024-11-08 18:29:58,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 432 transitions, 952 flow [2024-11-08 18:29:58,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 432 transitions, 952 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:29:58,944 INFO L231 Difference]: Finished difference. Result has 424 places, 432 transitions, 892 flow [2024-11-08 18:29:58,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=473, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=892, PETRI_PLACES=424, PETRI_TRANSITIONS=432} [2024-11-08 18:29:58,946 INFO L277 CegarLoopForPetriNet]: 427 programPoint places, -3 predicate places. [2024-11-08 18:29:58,946 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 432 transitions, 892 flow [2024-11-08 18:29:58,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 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 18:29:58,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:58,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:58,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:29:58,948 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 18:29:58,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1431378282, now seen corresponding path program 1 times [2024-11-08 18:29:58,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:58,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460811010] [2024-11-08 18:29:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:59,183 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 18:29:59,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:59,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460811010] [2024-11-08 18:29:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460811010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:29:59,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108510918] [2024-11-08 18:29:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:59,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:59,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:59,187 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:29:59,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:29:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:59,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:29:59,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:59,380 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 18:29:59,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:29:59,431 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 18:29:59,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108510918] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:29:59,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:29:59,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 18:29:59,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492356003] [2024-11-08 18:29:59,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:29:59,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:29:59,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:59,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:29:59,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:29:59,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 473 [2024-11-08 18:29:59,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 432 transitions, 892 flow. Second operand has 10 states, 10 states have (on average 397.1) internal successors, (3971), 10 states have internal predecessors, (3971), 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 18:29:59,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:59,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 473 [2024-11-08 18:29:59,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:30:02,402 INFO L124 PetriNetUnfolderBase]: 1905/13156 cut-off events. [2024-11-08 18:30:02,402 INFO L125 PetriNetUnfolderBase]: For 124/131 co-relation queries the response was YES. [2024-11-08 18:30:02,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15842 conditions, 13156 events. 1905/13156 cut-off events. For 124/131 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 158364 event pairs, 1464 based on Foata normal form. 4/11982 useless extension candidates. Maximal degree in co-relation 15744. Up to 2601 conditions per place. [2024-11-08 18:30:02,509 INFO L140 encePairwiseOnDemand]: 466/473 looper letters, 40 selfloop transitions, 9 changer transitions 0/441 dead transitions. [2024-11-08 18:30:02,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 441 transitions, 1008 flow [2024-11-08 18:30:02,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:30:02,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:30:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3608 transitions. [2024-11-08 18:30:02,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8475452196382429 [2024-11-08 18:30:02,518 INFO L175 Difference]: Start difference. First operand has 424 places, 432 transitions, 892 flow. Second operand 9 states and 3608 transitions. [2024-11-08 18:30:02,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 441 transitions, 1008 flow [2024-11-08 18:30:02,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 441 transitions, 1006 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:30:02,527 INFO L231 Difference]: Finished difference. Result has 434 places, 437 transitions, 936 flow [2024-11-08 18:30:02,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=473, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=936, PETRI_PLACES=434, PETRI_TRANSITIONS=437} [2024-11-08 18:30:02,528 INFO L277 CegarLoopForPetriNet]: 427 programPoint places, 7 predicate places. [2024-11-08 18:30:02,529 INFO L471 AbstractCegarLoop]: Abstraction has has 434 places, 437 transitions, 936 flow [2024-11-08 18:30:02,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 397.1) internal successors, (3971), 10 states have internal predecessors, (3971), 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 18:30:02,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:30:02,531 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:02,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:30:02,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:02,732 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 18:30:02,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:02,733 INFO L85 PathProgramCache]: Analyzing trace with hash 605434490, now seen corresponding path program 2 times [2024-11-08 18:30:02,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570470012] [2024-11-08 18:30:02,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:02,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:02,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:02,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570470012] [2024-11-08 18:30:02,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570470012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:02,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956613257] [2024-11-08 18:30:02,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:30:02,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:02,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:02,942 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:02,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f71dcd1-c571-4f63-aa7a-04a1dcc8c635/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:30:03,072 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:30:03,072 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:30:03,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:30:03,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:03,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:30:03,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 18:30:03,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:30:03,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-08 18:30:03,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:30:03,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-08 18:30:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 18:30:03,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:03,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956613257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:03,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:03,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-08 18:30:03,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601152241] [2024-11-08 18:30:03,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:03,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:30:03,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:30:03,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:30:04,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 473 [2024-11-08 18:30:04,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 437 transitions, 936 flow. Second operand has 8 states, 8 states have (on average 327.125) internal successors, (2617), 8 states have internal predecessors, (2617), 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 18:30:04,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:30:04,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 473 [2024-11-08 18:30:04,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand