./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/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_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/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_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/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 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:04:02,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:04:02,584 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 18:04:02,589 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:04:02,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:04:02,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:04:02,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:04:02,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:04:02,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:04:02,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:04:02,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:04:02,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:04:02,638 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:04:02,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:04:02,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:04:02,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:04:02,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:04:02,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:04:02,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:04:02,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:04:02,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:04:02,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:04:02,646 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:04:02,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:04:02,647 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:04:02,647 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:04:02,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:04:02,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:04:02,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:04:02,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:04:02,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:04:02,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:04:02,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:04:02,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:04:02,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:04:02,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:04:02,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:04:02,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:04:02,653 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:04:02,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:04:02,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:04:02,654 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_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2024-11-08 18:04:02,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:04:03,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:04:03,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:04:03,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:04:03,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:04:03,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i Unable to find full path for "g++" [2024-11-08 18:04:05,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:04:05,664 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:04:05,664 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2024-11-08 18:04:05,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/data/80da74349/771c1cd48b354da4b3aae3941910da7d/FLAG006849449 [2024-11-08 18:04:05,802 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/data/80da74349/771c1cd48b354da4b3aae3941910da7d [2024-11-08 18:04:05,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:04:05,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:04:05,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:04:05,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:04:05,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:04:05,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:04:05" (1/1) ... [2024-11-08 18:04:05,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c72761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:05, skipping insertion in model container [2024-11-08 18:04:05,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:04:05" (1/1) ... [2024-11-08 18:04:05,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:04:06,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:04:06,825 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:04:06,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:04:07,021 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:04:07,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07 WrapperNode [2024-11-08 18:04:07,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:04:07,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:04:07,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:04:07,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:04:07,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,146 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 289 [2024-11-08 18:04:07,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:04:07,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:04:07,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:04:07,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:04:07,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:04:07,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:04:07,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:04:07,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:04:07,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (1/1) ... [2024-11-08 18:04:07,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:04:07,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:07,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:04:07,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:04:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 18:04:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 18:04:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:04:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 18:04:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 18:04:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:04:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:04:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:04:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 18:04:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:04:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:04:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 18:04:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:04:07,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:04:07,343 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 18:04:07,585 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:04:07,588 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:04:08,444 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:04:08,444 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:04:08,507 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:04:08,507 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:04:08,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:04:08 BoogieIcfgContainer [2024-11-08 18:04:08,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:04:08,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:04:08,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:04:08,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:04:08,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:04:05" (1/3) ... [2024-11-08 18:04:08,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130c3a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:04:08, skipping insertion in model container [2024-11-08 18:04:08,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:07" (2/3) ... [2024-11-08 18:04:08,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130c3a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:04:08, skipping insertion in model container [2024-11-08 18:04:08,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:04:08" (3/3) ... [2024-11-08 18:04:08,527 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2024-11-08 18:04:08,550 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:04:08,551 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-08 18:04:08,551 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:04:08,696 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 18:04:08,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 327 transitions, 658 flow [2024-11-08 18:04:08,992 INFO L124 PetriNetUnfolderBase]: 6/326 cut-off events. [2024-11-08 18:04:08,992 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:04:09,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 326 events. 6/326 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 423 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 203. Up to 2 conditions per place. [2024-11-08 18:04:09,006 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 327 transitions, 658 flow [2024-11-08 18:04:09,014 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 326 transitions, 655 flow [2024-11-08 18:04:09,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:04:09,032 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;@340b5049, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:04:09,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-08 18:04:09,063 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:04:09,063 INFO L124 PetriNetUnfolderBase]: 3/128 cut-off events. [2024-11-08 18:04:09,063 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:04:09,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:09,064 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] [2024-11-08 18:04:09,065 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:09,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:09,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2083476620, now seen corresponding path program 1 times [2024-11-08 18:04:09,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:09,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702935515] [2024-11-08 18:04:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:09,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:10,605 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 18:04:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:10,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702935515] [2024-11-08 18:04:10,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702935515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:10,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:10,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:04:10,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944450347] [2024-11-08 18:04:10,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:10,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:04:10,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:10,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:04:10,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:04:11,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 327 [2024-11-08 18:04:11,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 326 transitions, 655 flow. Second operand has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 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 18:04:11,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:11,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 327 [2024-11-08 18:04:11,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:13,446 INFO L124 PetriNetUnfolderBase]: 1322/5030 cut-off events. [2024-11-08 18:04:13,446 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:04:13,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7574 conditions, 5030 events. 1322/5030 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 37101 event pairs, 912 based on Foata normal form. 0/4562 useless extension candidates. Maximal degree in co-relation 7432. Up to 2359 conditions per place. [2024-11-08 18:04:13,487 INFO L140 encePairwiseOnDemand]: 290/327 looper letters, 84 selfloop transitions, 107 changer transitions 0/434 dead transitions. [2024-11-08 18:04:13,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 434 transitions, 1253 flow [2024-11-08 18:04:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:04:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:04:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2024-11-08 18:04:13,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8445463812436289 [2024-11-08 18:04:13,518 INFO L175 Difference]: Start difference. First operand has 324 places, 326 transitions, 655 flow. Second operand 6 states and 1657 transitions. [2024-11-08 18:04:13,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 434 transitions, 1253 flow [2024-11-08 18:04:13,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 434 transitions, 1252 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:04:13,546 INFO L231 Difference]: Finished difference. Result has 332 places, 426 transitions, 1342 flow [2024-11-08 18:04:13,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1342, PETRI_PLACES=332, PETRI_TRANSITIONS=426} [2024-11-08 18:04:13,555 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 8 predicate places. [2024-11-08 18:04:13,557 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 426 transitions, 1342 flow [2024-11-08 18:04:13,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 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 18:04:13,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:13,560 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] [2024-11-08 18:04:13,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:04:13,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:13,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:13,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1124600659, now seen corresponding path program 1 times [2024-11-08 18:04:13,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:13,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962873084] [2024-11-08 18:04:13,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:13,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:14,576 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 18:04:14,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:14,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962873084] [2024-11-08 18:04:14,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962873084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:14,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:14,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:04:14,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180395774] [2024-11-08 18:04:14,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:14,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:04:14,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:14,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:04:14,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:04:15,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 327 [2024-11-08 18:04:15,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 426 transitions, 1342 flow. Second operand has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 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 18:04:15,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:15,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 327 [2024-11-08 18:04:15,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:17,183 INFO L124 PetriNetUnfolderBase]: 1594/5926 cut-off events. [2024-11-08 18:04:17,184 INFO L125 PetriNetUnfolderBase]: For 1217/1220 co-relation queries the response was YES. [2024-11-08 18:04:17,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10718 conditions, 5926 events. 1594/5926 cut-off events. For 1217/1220 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 45114 event pairs, 936 based on Foata normal form. 0/5419 useless extension candidates. Maximal degree in co-relation 10563. Up to 2637 conditions per place. [2024-11-08 18:04:17,234 INFO L140 encePairwiseOnDemand]: 290/327 looper letters, 180 selfloop transitions, 107 changer transitions 0/534 dead transitions. [2024-11-08 18:04:17,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 534 transitions, 2324 flow [2024-11-08 18:04:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:04:17,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:04:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2024-11-08 18:04:17,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8445463812436289 [2024-11-08 18:04:17,242 INFO L175 Difference]: Start difference. First operand has 332 places, 426 transitions, 1342 flow. Second operand 6 states and 1657 transitions. [2024-11-08 18:04:17,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 534 transitions, 2324 flow [2024-11-08 18:04:17,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 534 transitions, 2324 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:04:17,269 INFO L231 Difference]: Finished difference. Result has 341 places, 526 transitions, 2222 flow [2024-11-08 18:04:17,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=1340, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2222, PETRI_PLACES=341, PETRI_TRANSITIONS=526} [2024-11-08 18:04:17,271 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 17 predicate places. [2024-11-08 18:04:17,272 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 526 transitions, 2222 flow [2024-11-08 18:04:17,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 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 18:04:17,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:17,274 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] [2024-11-08 18:04:17,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:04:17,275 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:17,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2116153993, now seen corresponding path program 1 times [2024-11-08 18:04:17,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:17,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290211993] [2024-11-08 18:04:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:17,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:17,435 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 18:04:17,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:17,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290211993] [2024-11-08 18:04:17,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290211993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:17,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:17,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:04:17,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322359222] [2024-11-08 18:04:17,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:17,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:04:17,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:17,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:04:17,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:04:17,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 327 [2024-11-08 18:04:17,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 526 transitions, 2222 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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 18:04:17,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:17,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 327 [2024-11-08 18:04:17,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:18,955 INFO L124 PetriNetUnfolderBase]: 1106/4480 cut-off events. [2024-11-08 18:04:18,956 INFO L125 PetriNetUnfolderBase]: For 1100/1106 co-relation queries the response was YES. [2024-11-08 18:04:18,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8894 conditions, 4480 events. 1106/4480 cut-off events. For 1100/1106 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 28784 event pairs, 108 based on Foata normal form. 8/4221 useless extension candidates. Maximal degree in co-relation 8669. Up to 1137 conditions per place. [2024-11-08 18:04:18,994 INFO L140 encePairwiseOnDemand]: 319/327 looper letters, 18 selfloop transitions, 4 changer transitions 0/532 dead transitions. [2024-11-08 18:04:18,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 532 transitions, 2278 flow [2024-11-08 18:04:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:04:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:04:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2024-11-08 18:04:18,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9775739041794088 [2024-11-08 18:04:18,997 INFO L175 Difference]: Start difference. First operand has 341 places, 526 transitions, 2222 flow. Second operand 3 states and 959 transitions. [2024-11-08 18:04:18,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 532 transitions, 2278 flow [2024-11-08 18:04:19,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 532 transitions, 2086 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-08 18:04:19,022 INFO L231 Difference]: Finished difference. Result has 344 places, 528 transitions, 2058 flow [2024-11-08 18:04:19,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2030, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2058, PETRI_PLACES=344, PETRI_TRANSITIONS=528} [2024-11-08 18:04:19,024 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 20 predicate places. [2024-11-08 18:04:19,024 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 528 transitions, 2058 flow [2024-11-08 18:04:19,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 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 18:04:19,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:19,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:19,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:04:19,026 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:19,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash 684528471, now seen corresponding path program 1 times [2024-11-08 18:04:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:19,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187535385] [2024-11-08 18:04:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:19,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:19,743 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 18:04:19,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:19,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187535385] [2024-11-08 18:04:19,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187535385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:19,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:19,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:04:19,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825840449] [2024-11-08 18:04:19,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:19,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:04:19,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:19,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:04:19,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:04:20,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 327 [2024-11-08 18:04:20,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 528 transitions, 2058 flow. Second operand has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 18:04:20,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:20,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 327 [2024-11-08 18:04:20,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:24,423 INFO L124 PetriNetUnfolderBase]: 3041/10832 cut-off events. [2024-11-08 18:04:24,424 INFO L125 PetriNetUnfolderBase]: For 5996/6095 co-relation queries the response was YES. [2024-11-08 18:04:24,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23916 conditions, 10832 events. 3041/10832 cut-off events. For 5996/6095 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 85649 event pairs, 1872 based on Foata normal form. 0/10246 useless extension candidates. Maximal degree in co-relation 23656. Up to 5591 conditions per place. [2024-11-08 18:04:24,533 INFO L140 encePairwiseOnDemand]: 321/327 looper letters, 285 selfloop transitions, 5 changer transitions 0/527 dead transitions. [2024-11-08 18:04:24,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 527 transitions, 2636 flow [2024-11-08 18:04:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:04:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:04:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1507 transitions. [2024-11-08 18:04:24,538 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7680937818552498 [2024-11-08 18:04:24,539 INFO L175 Difference]: Start difference. First operand has 344 places, 528 transitions, 2058 flow. Second operand 6 states and 1507 transitions. [2024-11-08 18:04:24,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 527 transitions, 2636 flow [2024-11-08 18:04:24,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 527 transitions, 2632 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:04:24,569 INFO L231 Difference]: Finished difference. Result has 347 places, 527 transitions, 2062 flow [2024-11-08 18:04:24,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2052, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2062, PETRI_PLACES=347, PETRI_TRANSITIONS=527} [2024-11-08 18:04:24,571 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 23 predicate places. [2024-11-08 18:04:24,571 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 527 transitions, 2062 flow [2024-11-08 18:04:24,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 18:04:24,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:24,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:24,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:04:24,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:24,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:24,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2079850944, now seen corresponding path program 1 times [2024-11-08 18:04:24,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:24,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020410670] [2024-11-08 18:04:24,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:24,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:24,800 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 18:04:24,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:24,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020410670] [2024-11-08 18:04:24,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020410670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:24,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863187296] [2024-11-08 18:04:24,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:24,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:24,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:24,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:24,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:04:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:25,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:04:25,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:25,335 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 18:04:25,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:25,516 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 18:04:25,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863187296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:04:25,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:04:25,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 18:04:25,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700610049] [2024-11-08 18:04:25,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:04:25,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:04:25,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:25,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:04:25,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:04:25,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 327 [2024-11-08 18:04:25,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 527 transitions, 2062 flow. Second operand has 10 states, 10 states have (on average 307.3) internal successors, (3073), 10 states have internal predecessors, (3073), 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 18:04:25,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:25,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 327 [2024-11-08 18:04:25,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:27,470 INFO L124 PetriNetUnfolderBase]: 1126/4646 cut-off events. [2024-11-08 18:04:27,470 INFO L125 PetriNetUnfolderBase]: For 683/689 co-relation queries the response was YES. [2024-11-08 18:04:27,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8964 conditions, 4646 events. 1126/4646 cut-off events. For 683/689 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 29626 event pairs, 108 based on Foata normal form. 7/4367 useless extension candidates. Maximal degree in co-relation 8662. Up to 922 conditions per place. [2024-11-08 18:04:27,513 INFO L140 encePairwiseOnDemand]: 316/327 looper letters, 27 selfloop transitions, 13 changer transitions 0/543 dead transitions. [2024-11-08 18:04:27,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 543 transitions, 2172 flow [2024-11-08 18:04:27,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:04:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:04:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2790 transitions. [2024-11-08 18:04:27,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9480122324159022 [2024-11-08 18:04:27,522 INFO L175 Difference]: Start difference. First operand has 347 places, 527 transitions, 2062 flow. Second operand 9 states and 2790 transitions. [2024-11-08 18:04:27,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 543 transitions, 2172 flow [2024-11-08 18:04:27,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 543 transitions, 2162 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 18:04:27,546 INFO L231 Difference]: Finished difference. Result has 353 places, 532 transitions, 2112 flow [2024-11-08 18:04:27,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2044, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2112, PETRI_PLACES=353, PETRI_TRANSITIONS=532} [2024-11-08 18:04:27,548 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 29 predicate places. [2024-11-08 18:04:27,548 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 532 transitions, 2112 flow [2024-11-08 18:04:27,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 307.3) internal successors, (3073), 10 states have internal predecessors, (3073), 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 18:04:27,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:27,551 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2024-11-08 18:04:27,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:04:27,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:27,753 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:27,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash 93538158, now seen corresponding path program 2 times [2024-11-08 18:04:27,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:27,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54577203] [2024-11-08 18:04:27,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:27,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:28,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:28,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54577203] [2024-11-08 18:04:28,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54577203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:28,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10331168] [2024-11-08 18:04:28,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:04:28,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:28,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:28,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:28,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:04:28,646 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:04:28,646 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:04:28,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:04:28,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:28,712 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 18:04:28,739 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 21 treesize of output 20 [2024-11-08 18:04:28,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:28,785 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 30 treesize of output 32 [2024-11-08 18:04:28,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:28,846 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 39 treesize of output 44 [2024-11-08 18:04:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-08 18:04:28,890 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:28,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10331168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:28,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:04:28,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 18:04:28,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501407435] [2024-11-08 18:04:28,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:28,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:04:28,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:28,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:04:28,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:04:29,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 327 [2024-11-08 18:04:29,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 532 transitions, 2112 flow. Second operand has 6 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 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 18:04:29,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:29,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 327 [2024-11-08 18:04:29,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:34,105 INFO L124 PetriNetUnfolderBase]: 3613/12420 cut-off events. [2024-11-08 18:04:34,105 INFO L125 PetriNetUnfolderBase]: For 5269/5351 co-relation queries the response was YES. [2024-11-08 18:04:34,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26934 conditions, 12420 events. 3613/12420 cut-off events. For 5269/5351 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 98810 event pairs, 1616 based on Foata normal form. 0/11622 useless extension candidates. Maximal degree in co-relation 26597. Up to 6064 conditions per place. [2024-11-08 18:04:34,196 INFO L140 encePairwiseOnDemand]: 284/327 looper letters, 245 selfloop transitions, 170 changer transitions 0/701 dead transitions. [2024-11-08 18:04:34,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 701 transitions, 3420 flow [2024-11-08 18:04:34,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:04:34,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:04:34,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1720 transitions. [2024-11-08 18:04:34,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766564729867482 [2024-11-08 18:04:34,202 INFO L175 Difference]: Start difference. First operand has 353 places, 532 transitions, 2112 flow. Second operand 6 states and 1720 transitions. [2024-11-08 18:04:34,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 701 transitions, 3420 flow [2024-11-08 18:04:34,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 701 transitions, 3410 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-08 18:04:34,237 INFO L231 Difference]: Finished difference. Result has 362 places, 693 transitions, 3352 flow [2024-11-08 18:04:34,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3352, PETRI_PLACES=362, PETRI_TRANSITIONS=693} [2024-11-08 18:04:34,239 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 38 predicate places. [2024-11-08 18:04:34,240 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 693 transitions, 3352 flow [2024-11-08 18:04:34,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 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 18:04:34,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:34,242 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:34,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:04:34,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 18:04:34,447 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:34,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:34,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1050999539, now seen corresponding path program 1 times [2024-11-08 18:04:34,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:34,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683257305] [2024-11-08 18:04:34,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:34,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:35,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:35,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683257305] [2024-11-08 18:04:35,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683257305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:35,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269251745] [2024-11-08 18:04:35,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:35,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:35,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:35,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:35,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:04:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:35,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:04:35,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:35,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:36,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269251745] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:04:36,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:04:36,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-08 18:04:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835257382] [2024-11-08 18:04:36,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:04:36,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:04:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:04:36,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:04:36,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 327 [2024-11-08 18:04:36,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 693 transitions, 3352 flow. Second operand has 18 states, 18 states have (on average 307.3888888888889) internal successors, (5533), 18 states have internal predecessors, (5533), 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 18:04:36,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:36,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 327 [2024-11-08 18:04:36,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:39,627 INFO L124 PetriNetUnfolderBase]: 1818/7106 cut-off events. [2024-11-08 18:04:39,627 INFO L125 PetriNetUnfolderBase]: For 3078/3167 co-relation queries the response was YES. [2024-11-08 18:04:39,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16305 conditions, 7106 events. 1818/7106 cut-off events. For 3078/3167 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 49561 event pairs, 170 based on Foata normal form. 4/6764 useless extension candidates. Maximal degree in co-relation 15690. Up to 1393 conditions per place. [2024-11-08 18:04:39,677 INFO L140 encePairwiseOnDemand]: 318/327 looper letters, 35 selfloop transitions, 25 changer transitions 0/724 dead transitions. [2024-11-08 18:04:39,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 724 transitions, 3586 flow [2024-11-08 18:04:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:04:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 18:04:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6469 transitions. [2024-11-08 18:04:39,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9420416484636668 [2024-11-08 18:04:39,692 INFO L175 Difference]: Start difference. First operand has 362 places, 693 transitions, 3352 flow. Second operand 21 states and 6469 transitions. [2024-11-08 18:04:39,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 724 transitions, 3586 flow [2024-11-08 18:04:39,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 724 transitions, 3550 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-08 18:04:39,762 INFO L231 Difference]: Finished difference. Result has 387 places, 706 transitions, 3460 flow [2024-11-08 18:04:39,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=3316, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3460, PETRI_PLACES=387, PETRI_TRANSITIONS=706} [2024-11-08 18:04:39,764 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 63 predicate places. [2024-11-08 18:04:39,764 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 706 transitions, 3460 flow [2024-11-08 18:04:39,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 307.3888888888889) internal successors, (5533), 18 states have internal predecessors, (5533), 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 18:04:39,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:39,771 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:39,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:04:39,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 18:04:39,977 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:39,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1425442737, now seen corresponding path program 2 times [2024-11-08 18:04:39,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:39,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711994873] [2024-11-08 18:04:39,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:39,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:41,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:41,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711994873] [2024-11-08 18:04:41,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711994873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:41,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038630086] [2024-11-08 18:04:41,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:04:41,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:41,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:41,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:41,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:04:41,765 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:04:41,765 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:04:41,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:04:41,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:41,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 18:04:41,833 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 23 treesize of output 22 [2024-11-08 18:04:41,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:41,880 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 32 treesize of output 34 [2024-11-08 18:04:41,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:04:41,939 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 41 treesize of output 46 [2024-11-08 18:04:41,988 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2024-11-08 18:04:41,988 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:41,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038630086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:41,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:04:41,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-08 18:04:41,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830959747] [2024-11-08 18:04:41,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:41,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:04:41,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:41,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:04:41,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:04:42,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 327 [2024-11-08 18:04:42,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 706 transitions, 3460 flow. Second operand has 6 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 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 18:04:42,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:42,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 327 [2024-11-08 18:04:42,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:49,437 INFO L124 PetriNetUnfolderBase]: 4304/14801 cut-off events. [2024-11-08 18:04:49,437 INFO L125 PetriNetUnfolderBase]: For 10384/10533 co-relation queries the response was YES. [2024-11-08 18:04:49,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37132 conditions, 14801 events. 4304/14801 cut-off events. For 10384/10533 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 120297 event pairs, 1677 based on Foata normal form. 0/13959 useless extension candidates. Maximal degree in co-relation 36431. Up to 6897 conditions per place. [2024-11-08 18:04:49,574 INFO L140 encePairwiseOnDemand]: 284/327 looper letters, 395 selfloop transitions, 170 changer transitions 0/875 dead transitions. [2024-11-08 18:04:49,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 875 transitions, 5368 flow [2024-11-08 18:04:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:04:49,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:04:49,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1720 transitions. [2024-11-08 18:04:49,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766564729867482 [2024-11-08 18:04:49,579 INFO L175 Difference]: Start difference. First operand has 387 places, 706 transitions, 3460 flow. Second operand 6 states and 1720 transitions. [2024-11-08 18:04:49,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 875 transitions, 5368 flow [2024-11-08 18:04:49,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 875 transitions, 5342 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-08 18:04:49,662 INFO L231 Difference]: Finished difference. Result has 391 places, 867 transitions, 4984 flow [2024-11-08 18:04:49,663 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=3434, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4984, PETRI_PLACES=391, PETRI_TRANSITIONS=867} [2024-11-08 18:04:49,667 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 67 predicate places. [2024-11-08 18:04:49,668 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 867 transitions, 4984 flow [2024-11-08 18:04:49,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 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 18:04:49,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:49,671 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:49,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:04:49,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 18:04:49,872 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:49,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:49,873 INFO L85 PathProgramCache]: Analyzing trace with hash -580820684, now seen corresponding path program 1 times [2024-11-08 18:04:49,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:49,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694810835] [2024-11-08 18:04:49,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:49,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:51,286 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:51,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:51,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694810835] [2024-11-08 18:04:51,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694810835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:51,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246351562] [2024-11-08 18:04:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:51,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:51,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:51,290 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:51,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:04:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:51,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:04:51,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:52,470 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:52,471 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:53,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246351562] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:04:53,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:04:53,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-08 18:04:53,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316890918] [2024-11-08 18:04:53,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:04:53,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:04:53,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:53,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:04:53,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:04:53,774 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 327 [2024-11-08 18:04:53,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 867 transitions, 4984 flow. Second operand has 23 states, 23 states have (on average 307.69565217391306) internal successors, (7077), 23 states have internal predecessors, (7077), 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 18:04:53,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:53,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 327 [2024-11-08 18:04:53,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:57,873 INFO L124 PetriNetUnfolderBase]: 2509/9455 cut-off events. [2024-11-08 18:04:57,874 INFO L125 PetriNetUnfolderBase]: For 7353/7519 co-relation queries the response was YES. [2024-11-08 18:04:57,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24678 conditions, 9455 events. 2509/9455 cut-off events. For 7353/7519 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 69256 event pairs, 231 based on Foata normal form. 3/9055 useless extension candidates. Maximal degree in co-relation 23794. Up to 2110 conditions per place. [2024-11-08 18:04:57,954 INFO L140 encePairwiseOnDemand]: 318/327 looper letters, 41 selfloop transitions, 34 changer transitions 0/900 dead transitions. [2024-11-08 18:04:57,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 900 transitions, 5288 flow [2024-11-08 18:04:57,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 18:04:57,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-08 18:04:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9228 transitions. [2024-11-08 18:04:57,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9406727828746178 [2024-11-08 18:04:57,981 INFO L175 Difference]: Start difference. First operand has 391 places, 867 transitions, 4984 flow. Second operand 30 states and 9228 transitions. [2024-11-08 18:04:57,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 900 transitions, 5288 flow [2024-11-08 18:04:58,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 900 transitions, 4952 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-11-08 18:04:58,119 INFO L231 Difference]: Finished difference. Result has 424 places, 877 transitions, 4814 flow [2024-11-08 18:04:58,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=4648, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=840, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4814, PETRI_PLACES=424, PETRI_TRANSITIONS=877} [2024-11-08 18:04:58,121 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 100 predicate places. [2024-11-08 18:04:58,121 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 877 transitions, 4814 flow [2024-11-08 18:04:58,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 307.69565217391306) internal successors, (7077), 23 states have internal predecessors, (7077), 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 18:04:58,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:58,126 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:58,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 18:04:58,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb08a12-593e-4b1f-97fb-8b8e5a0efe83/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:58,330 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:04:58,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash 953382623, now seen corresponding path program 2 times [2024-11-08 18:04:58,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:58,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88816500] [2024-11-08 18:04:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1900 trivial. 0 not checked. [2024-11-08 18:05:01,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:01,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88816500] [2024-11-08 18:05:01,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88816500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:05:01,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:05:01,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:05:01,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094711497] [2024-11-08 18:05:01,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:01,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:05:01,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:01,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:05:01,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:05:03,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 327 [2024-11-08 18:05:03,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 877 transitions, 4814 flow. Second operand has 11 states, 11 states have (on average 238.0909090909091) internal successors, (2619), 11 states have internal predecessors, (2619), 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 18:05:03,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:05:03,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 327 [2024-11-08 18:05:03,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:05:14,080 INFO L124 PetriNetUnfolderBase]: 5753/18218 cut-off events. [2024-11-08 18:05:14,080 INFO L125 PetriNetUnfolderBase]: For 20209/20399 co-relation queries the response was YES. [2024-11-08 18:05:14,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54088 conditions, 18218 events. 5753/18218 cut-off events. For 20209/20399 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 147634 event pairs, 1608 based on Foata normal form. 74/17568 useless extension candidates. Maximal degree in co-relation 53052. Up to 4524 conditions per place. [2024-11-08 18:05:14,274 INFO L140 encePairwiseOnDemand]: 286/327 looper letters, 864 selfloop transitions, 128 changer transitions 0/1301 dead transitions. [2024-11-08 18:05:14,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 1301 transitions, 9718 flow [2024-11-08 18:05:14,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 18:05:14,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-08 18:05:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5753 transitions. [2024-11-08 18:05:14,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7649248770110357 [2024-11-08 18:05:14,286 INFO L175 Difference]: Start difference. First operand has 424 places, 877 transitions, 4814 flow. Second operand 23 states and 5753 transitions. [2024-11-08 18:05:14,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 1301 transitions, 9718 flow [2024-11-08 18:05:14,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 1301 transitions, 9670 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-08 18:05:14,434 INFO L231 Difference]: Finished difference. Result has 445 places, 1001 transitions, 6197 flow [2024-11-08 18:05:14,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=4766, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=787, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6197, PETRI_PLACES=445, PETRI_TRANSITIONS=1001} [2024-11-08 18:05:14,436 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 121 predicate places. [2024-11-08 18:05:14,437 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 1001 transitions, 6197 flow [2024-11-08 18:05:14,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 238.0909090909091) internal successors, (2619), 11 states have internal predecessors, (2619), 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 18:05:14,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:05:14,439 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:14,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:05:14,439 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:05:14,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:14,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1288178611, now seen corresponding path program 3 times [2024-11-08 18:05:14,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:14,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307204423] [2024-11-08 18:05:14,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:14,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:05:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:18,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1900 trivial. 0 not checked. [2024-11-08 18:05:18,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:18,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307204423] [2024-11-08 18:05:18,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307204423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:05:18,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:05:18,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:05:18,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066516514] [2024-11-08 18:05:18,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:18,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:05:18,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:18,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:05:18,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:05:19,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 327 [2024-11-08 18:05:19,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 1001 transitions, 6197 flow. Second operand has 11 states, 11 states have (on average 238.0909090909091) internal successors, (2619), 11 states have internal predecessors, (2619), 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 18:05:19,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:05:19,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 327 [2024-11-08 18:05:19,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:05:30,052 INFO L124 PetriNetUnfolderBase]: 5821/18440 cut-off events. [2024-11-08 18:05:30,052 INFO L125 PetriNetUnfolderBase]: For 27349/27799 co-relation queries the response was YES. [2024-11-08 18:05:30,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59379 conditions, 18440 events. 5821/18440 cut-off events. For 27349/27799 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 149907 event pairs, 1720 based on Foata normal form. 44/17715 useless extension candidates. Maximal degree in co-relation 58318. Up to 5461 conditions per place. [2024-11-08 18:05:30,251 INFO L140 encePairwiseOnDemand]: 279/327 looper letters, 649 selfloop transitions, 219 changer transitions 0/1177 dead transitions. [2024-11-08 18:05:30,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1177 transitions, 9130 flow [2024-11-08 18:05:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:05:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-08 18:05:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3152 transitions. [2024-11-08 18:05:30,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8032619775739042 [2024-11-08 18:05:30,255 INFO L175 Difference]: Start difference. First operand has 445 places, 1001 transitions, 6197 flow. Second operand 12 states and 3152 transitions. [2024-11-08 18:05:30,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1177 transitions, 9130 flow [2024-11-08 18:05:30,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 1177 transitions, 9065 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-08 18:05:30,468 INFO L231 Difference]: Finished difference. Result has 459 places, 1025 transitions, 7152 flow [2024-11-08 18:05:30,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=6166, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7152, PETRI_PLACES=459, PETRI_TRANSITIONS=1025} [2024-11-08 18:05:30,470 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 135 predicate places. [2024-11-08 18:05:30,471 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 1025 transitions, 7152 flow [2024-11-08 18:05:30,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 238.0909090909091) internal successors, (2619), 11 states have internal predecessors, (2619), 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 18:05:30,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:05:30,473 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:30,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:05:30,473 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 18:05:30,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:30,474 INFO L85 PathProgramCache]: Analyzing trace with hash -129631261, now seen corresponding path program 4 times [2024-11-08 18:05:30,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:30,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085853393] [2024-11-08 18:05:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:30,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:05:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1900 trivial. 0 not checked. [2024-11-08 18:05:33,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:33,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085853393] [2024-11-08 18:05:33,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085853393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:05:33,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:05:33,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:05:33,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429582377] [2024-11-08 18:05:33,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:33,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:05:33,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:33,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:05:33,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:05:34,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 327 [2024-11-08 18:05:34,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 1025 transitions, 7152 flow. Second operand has 11 states, 11 states have (on average 238.0909090909091) internal successors, (2619), 11 states have internal predecessors, (2619), 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 18:05:34,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:05:34,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 327 [2024-11-08 18:05:34,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand