./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/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_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/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_ee36b2d5-7846-47d6-b331-055981bf23fe/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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:33:40,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:33:40,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:33:40,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:33:40,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:33:40,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:33:40,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:33:40,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:33:40,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:33:40,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:33:40,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:33:40,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:33:40,245 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:33:40,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:33:40,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:33:40,247 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:33:40,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:33:40,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:33:40,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:33:40,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:33:40,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:33:40,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:33:40,254 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:33:40,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:33:40,255 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:33:40,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:33:40,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:33:40,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:33:40,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:33:40,257 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:33:40,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:33:40,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:33:40,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:33:40,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:33:40,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:33:40,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:33:40,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:33:40,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:33:40,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:33:40,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:33:40,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:33:40,262 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_ee36b2d5-7846-47d6-b331-055981bf23fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2024-11-08 17:33:40,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:33:40,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:33:40,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:33:40,570 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:33:40,571 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:33:40,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i Unable to find full path for "g++" [2024-11-08 17:33:42,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:33:42,981 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:33:42,982 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2024-11-08 17:33:43,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/data/d88c72e99/c660c762845244f0a3d7f0f9cfc71a75/FLAG6dfb6e7c6 [2024-11-08 17:33:43,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/data/d88c72e99/c660c762845244f0a3d7f0f9cfc71a75 [2024-11-08 17:33:43,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:33:43,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:33:43,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:33:43,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:33:43,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:33:43,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:33:43" (1/1) ... [2024-11-08 17:33:43,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77353c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:43, skipping insertion in model container [2024-11-08 17:33:43,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:33:43" (1/1) ... [2024-11-08 17:33:43,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:33:44,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:33:44,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:33:44,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:33:44,469 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:33:44,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44 WrapperNode [2024-11-08 17:33:44,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:33:44,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:33:44,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:33:44,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:33:44,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,598 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 243 [2024-11-08 17:33:44,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:33:44,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:33:44,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:33:44,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:33:44,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:33:44,710 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:33:44,710 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:33:44,710 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:33:44,711 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (1/1) ... [2024-11-08 17:33:44,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:33:44,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:33:44,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:33:44,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee36b2d5-7846-47d6-b331-055981bf23fe/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:33:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 17:33:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 17:33:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:33:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:33:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:33:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:33:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:33:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:33:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 17:33:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:33:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:33:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:33:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:33:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:33:44,800 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:33:45,005 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:33:45,008 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:33:45,754 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:33:45,755 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:33:45,807 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:33:45,811 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:33:45,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:33:45 BoogieIcfgContainer [2024-11-08 17:33:45,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:33:45,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:33:45,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:33:45,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:33:45,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:33:43" (1/3) ... [2024-11-08 17:33:45,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdbbca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:33:45, skipping insertion in model container [2024-11-08 17:33:45,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:33:44" (2/3) ... [2024-11-08 17:33:45,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdbbca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:33:45, skipping insertion in model container [2024-11-08 17:33:45,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:33:45" (3/3) ... [2024-11-08 17:33:45,828 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2024-11-08 17:33:45,852 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:33:45,854 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-08 17:33:45,855 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:33:45,999 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 17:33:46,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 273 transitions, 550 flow [2024-11-08 17:33:46,173 INFO L124 PetriNetUnfolderBase]: 2/272 cut-off events. [2024-11-08 17:33:46,173 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:33:46,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 2/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2024-11-08 17:33:46,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 273 transitions, 550 flow [2024-11-08 17:33:46,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 272 transitions, 547 flow [2024-11-08 17:33:46,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:33:46,224 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;@619e6299, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:33:46,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-08 17:33:46,233 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:33:46,233 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-08 17:33:46,233 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:33:46,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:46,234 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] [2024-11-08 17:33:46,235 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:33:46,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:46,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1062693660, now seen corresponding path program 1 times [2024-11-08 17:33:46,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:46,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584549539] [2024-11-08 17:33:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:46,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:47,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:47,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584549539] [2024-11-08 17:33:47,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584549539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:33:47,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:33:47,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:33:47,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053743955] [2024-11-08 17:33:47,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:33:47,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:33:47,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:47,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:33:47,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:33:48,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 273 [2024-11-08 17:33:48,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 272 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:33:48,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:48,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 273 [2024-11-08 17:33:48,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:49,852 INFO L124 PetriNetUnfolderBase]: 1377/4968 cut-off events. [2024-11-08 17:33:49,853 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:33:49,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7762 conditions, 4968 events. 1377/4968 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 37213 event pairs, 1344 based on Foata normal form. 36/4638 useless extension candidates. Maximal degree in co-relation 7665. Up to 2785 conditions per place. [2024-11-08 17:33:49,887 INFO L140 encePairwiseOnDemand]: 266/273 looper letters, 92 selfloop transitions, 5 changer transitions 0/270 dead transitions. [2024-11-08 17:33:49,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 270 transitions, 737 flow [2024-11-08 17:33:49,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:33:49,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:33:49,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1143 transitions. [2024-11-08 17:33:49,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6978021978021978 [2024-11-08 17:33:49,923 INFO L175 Difference]: Start difference. First operand has 274 places, 272 transitions, 547 flow. Second operand 6 states and 1143 transitions. [2024-11-08 17:33:49,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 270 transitions, 737 flow [2024-11-08 17:33:49,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 270 transitions, 736 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:33:49,939 INFO L231 Difference]: Finished difference. Result has 277 places, 270 transitions, 552 flow [2024-11-08 17:33:49,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=277, PETRI_TRANSITIONS=270} [2024-11-08 17:33:49,949 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 3 predicate places. [2024-11-08 17:33:49,949 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 270 transitions, 552 flow [2024-11-08 17:33:49,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:33:49,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:49,951 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] [2024-11-08 17:33:49,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:33:49,952 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:33:49,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:49,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1185403883, now seen corresponding path program 1 times [2024-11-08 17:33:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:49,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255467188] [2024-11-08 17:33:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:49,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:50,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:50,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255467188] [2024-11-08 17:33:50,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255467188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:33:50,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:33:50,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:33:50,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029921034] [2024-11-08 17:33:50,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:33:50,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:33:50,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:50,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:33:50,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:33:51,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 273 [2024-11-08 17:33:51,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 270 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:33:51,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:51,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 273 [2024-11-08 17:33:51,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:53,079 INFO L124 PetriNetUnfolderBase]: 762/4047 cut-off events. [2024-11-08 17:33:53,079 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:33:53,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5631 conditions, 4047 events. 762/4047 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 31117 event pairs, 460 based on Foata normal form. 0/3686 useless extension candidates. Maximal degree in co-relation 5584. Up to 1372 conditions per place. [2024-11-08 17:33:53,101 INFO L140 encePairwiseOnDemand]: 241/273 looper letters, 81 selfloop transitions, 90 changer transitions 0/370 dead transitions. [2024-11-08 17:33:53,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 370 transitions, 1094 flow [2024-11-08 17:33:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:33:53,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:33:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2024-11-08 17:33:53,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8418803418803419 [2024-11-08 17:33:53,106 INFO L175 Difference]: Start difference. First operand has 277 places, 270 transitions, 552 flow. Second operand 6 states and 1379 transitions. [2024-11-08 17:33:53,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 370 transitions, 1094 flow [2024-11-08 17:33:53,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 370 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:33:53,116 INFO L231 Difference]: Finished difference. Result has 281 places, 353 transitions, 1118 flow [2024-11-08 17:33:53,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1118, PETRI_PLACES=281, PETRI_TRANSITIONS=353} [2024-11-08 17:33:53,118 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 7 predicate places. [2024-11-08 17:33:53,118 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 353 transitions, 1118 flow [2024-11-08 17:33:53,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.83333333333334) internal successors, (1217), 6 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:33:53,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:53,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:33:53,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:33:53,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:33:53,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1526189789, now seen corresponding path program 1 times [2024-11-08 17:33:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:53,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380774727] [2024-11-08 17:33:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:53,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:53,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:53,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:53,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380774727] [2024-11-08 17:33:53,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380774727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:33:53,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:33:53,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:33:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000893951] [2024-11-08 17:33:53,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:33:53,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:33:53,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:53,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:33:53,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:33:54,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-11-08 17:33:54,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 353 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:33:54,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:54,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-11-08 17:33:54,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:55,948 INFO L124 PetriNetUnfolderBase]: 2110/7415 cut-off events. [2024-11-08 17:33:55,948 INFO L125 PetriNetUnfolderBase]: For 1556/1568 co-relation queries the response was YES. [2024-11-08 17:33:55,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13845 conditions, 7415 events. 2110/7415 cut-off events. For 1556/1568 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 59857 event pairs, 1264 based on Foata normal form. 0/6797 useless extension candidates. Maximal degree in co-relation 13740. Up to 4041 conditions per place. [2024-11-08 17:33:55,998 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 187 selfloop transitions, 123 changer transitions 0/485 dead transitions. [2024-11-08 17:33:55,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 485 transitions, 2162 flow [2024-11-08 17:33:55,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:33:55,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:33:56,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-11-08 17:33:56,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-11-08 17:33:56,003 INFO L175 Difference]: Start difference. First operand has 281 places, 353 transitions, 1118 flow. Second operand 6 states and 1291 transitions. [2024-11-08 17:33:56,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 485 transitions, 2162 flow [2024-11-08 17:33:56,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 485 transitions, 2162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:33:56,031 INFO L231 Difference]: Finished difference. Result has 290 places, 469 transitions, 2070 flow [2024-11-08 17:33:56,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2070, PETRI_PLACES=290, PETRI_TRANSITIONS=469} [2024-11-08 17:33:56,034 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 16 predicate places. [2024-11-08 17:33:56,035 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 469 transitions, 2070 flow [2024-11-08 17:33:56,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:33:56,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:56,036 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] [2024-11-08 17:33:56,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:33:56,037 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:33:56,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:56,038 INFO L85 PathProgramCache]: Analyzing trace with hash 635095015, now seen corresponding path program 1 times [2024-11-08 17:33:56,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:56,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586078460] [2024-11-08 17:33:56,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:56,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:33:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:33:56,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:33:56,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586078460] [2024-11-08 17:33:56,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586078460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:33:56,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:33:56,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:33:56,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084469183] [2024-11-08 17:33:56,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:33:56,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:33:56,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:33:56,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:33:56,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:33:57,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 273 [2024-11-08 17:33:57,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 469 transitions, 2070 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:33:57,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:33:57,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 273 [2024-11-08 17:33:57,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:33:59,587 INFO L124 PetriNetUnfolderBase]: 2413/8345 cut-off events. [2024-11-08 17:33:59,587 INFO L125 PetriNetUnfolderBase]: For 3708/3726 co-relation queries the response was YES. [2024-11-08 17:33:59,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17802 conditions, 8345 events. 2413/8345 cut-off events. For 3708/3726 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 67957 event pairs, 1292 based on Foata normal form. 0/7701 useless extension candidates. Maximal degree in co-relation 17683. Up to 4368 conditions per place. [2024-11-08 17:33:59,663 INFO L140 encePairwiseOnDemand]: 232/273 looper letters, 299 selfloop transitions, 123 changer transitions 0/601 dead transitions. [2024-11-08 17:33:59,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 601 transitions, 3562 flow [2024-11-08 17:33:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:33:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:33:59,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1291 transitions. [2024-11-08 17:33:59,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7881562881562881 [2024-11-08 17:33:59,672 INFO L175 Difference]: Start difference. First operand has 290 places, 469 transitions, 2070 flow. Second operand 6 states and 1291 transitions. [2024-11-08 17:33:59,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 601 transitions, 3562 flow [2024-11-08 17:33:59,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 601 transitions, 3402 flow, removed 80 selfloop flow, removed 0 redundant places. [2024-11-08 17:33:59,714 INFO L231 Difference]: Finished difference. Result has 299 places, 585 transitions, 3086 flow [2024-11-08 17:33:59,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3086, PETRI_PLACES=299, PETRI_TRANSITIONS=585} [2024-11-08 17:33:59,717 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 25 predicate places. [2024-11-08 17:33:59,719 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 585 transitions, 3086 flow [2024-11-08 17:33:59,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:33:59,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:33:59,723 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] [2024-11-08 17:33:59,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:33:59,723 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:33:59,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:33:59,724 INFO L85 PathProgramCache]: Analyzing trace with hash 586056587, now seen corresponding path program 1 times [2024-11-08 17:33:59,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:33:59,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015566998] [2024-11-08 17:33:59,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:33:59,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:33:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:00,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:00,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015566998] [2024-11-08 17:34:00,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015566998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:00,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:00,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:34:00,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180819252] [2024-11-08 17:34:00,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:00,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:34:00,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:00,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:34:00,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:34:01,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-11-08 17:34:01,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 585 transitions, 3086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:01,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:01,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-11-08 17:34:01,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:03,508 INFO L124 PetriNetUnfolderBase]: 2735/9143 cut-off events. [2024-11-08 17:34:03,508 INFO L125 PetriNetUnfolderBase]: For 5402/5479 co-relation queries the response was YES. [2024-11-08 17:34:03,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21642 conditions, 9143 events. 2735/9143 cut-off events. For 5402/5479 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 74784 event pairs, 1246 based on Foata normal form. 0/8476 useless extension candidates. Maximal degree in co-relation 21510. Up to 4881 conditions per place. [2024-11-08 17:34:03,685 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 360 selfloop transitions, 180 changer transitions 0/768 dead transitions. [2024-11-08 17:34:03,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 768 transitions, 4754 flow [2024-11-08 17:34:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:34:03,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:34:03,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-11-08 17:34:03,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-11-08 17:34:03,691 INFO L175 Difference]: Start difference. First operand has 299 places, 585 transitions, 3086 flow. Second operand 6 states and 1338 transitions. [2024-11-08 17:34:03,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 768 transitions, 4754 flow [2024-11-08 17:34:03,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 768 transitions, 4358 flow, removed 198 selfloop flow, removed 0 redundant places. [2024-11-08 17:34:03,725 INFO L231 Difference]: Finished difference. Result has 309 places, 752 transitions, 4086 flow [2024-11-08 17:34:03,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2702, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4086, PETRI_PLACES=309, PETRI_TRANSITIONS=752} [2024-11-08 17:34:03,727 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 35 predicate places. [2024-11-08 17:34:03,727 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 752 transitions, 4086 flow [2024-11-08 17:34:03,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:03,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:03,728 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 17:34:03,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:34:03,729 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:34:03,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:03,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1832341744, now seen corresponding path program 1 times [2024-11-08 17:34:03,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:03,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868672558] [2024-11-08 17:34:03,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:03,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:04,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:04,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:04,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868672558] [2024-11-08 17:34:04,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868672558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:04,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:04,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:34:04,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616155039] [2024-11-08 17:34:04,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:04,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:34:04,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:04,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:34:04,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:34:04,850 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 273 [2024-11-08 17:34:04,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 752 transitions, 4086 flow. Second operand has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:04,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:04,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 273 [2024-11-08 17:34:04,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:07,371 INFO L124 PetriNetUnfolderBase]: 3180/10480 cut-off events. [2024-11-08 17:34:07,372 INFO L125 PetriNetUnfolderBase]: For 8590/8696 co-relation queries the response was YES. [2024-11-08 17:34:07,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27889 conditions, 10480 events. 3180/10480 cut-off events. For 8590/8696 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 87524 event pairs, 1284 based on Foata normal form. 0/9787 useless extension candidates. Maximal degree in co-relation 27752. Up to 5371 conditions per place. [2024-11-08 17:34:07,471 INFO L140 encePairwiseOnDemand]: 230/273 looper letters, 513 selfloop transitions, 180 changer transitions 0/935 dead transitions. [2024-11-08 17:34:07,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 935 transitions, 6354 flow [2024-11-08 17:34:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:34:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:34:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2024-11-08 17:34:07,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8168498168498168 [2024-11-08 17:34:07,486 INFO L175 Difference]: Start difference. First operand has 309 places, 752 transitions, 4086 flow. Second operand 6 states and 1338 transitions. [2024-11-08 17:34:07,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 935 transitions, 6354 flow [2024-11-08 17:34:07,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 935 transitions, 6300 flow, removed 27 selfloop flow, removed 0 redundant places. [2024-11-08 17:34:07,596 INFO L231 Difference]: Finished difference. Result has 319 places, 919 transitions, 5722 flow [2024-11-08 17:34:07,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4032, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5722, PETRI_PLACES=319, PETRI_TRANSITIONS=919} [2024-11-08 17:34:07,598 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 45 predicate places. [2024-11-08 17:34:07,599 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 919 transitions, 5722 flow [2024-11-08 17:34:07,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:07,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:07,601 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] [2024-11-08 17:34:07,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:34:07,601 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:34:07,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:07,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1478498027, now seen corresponding path program 1 times [2024-11-08 17:34:07,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:07,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71224519] [2024-11-08 17:34:07,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:07,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:08,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:08,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71224519] [2024-11-08 17:34:08,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71224519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:08,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:08,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:34:08,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467906128] [2024-11-08 17:34:08,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:08,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:34:08,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:08,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:34:08,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:34:12,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-08 17:34:12,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 919 transitions, 5722 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:12,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:12,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-08 17:34:12,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:19,053 INFO L124 PetriNetUnfolderBase]: 4111/12732 cut-off events. [2024-11-08 17:34:19,053 INFO L125 PetriNetUnfolderBase]: For 15762/15857 co-relation queries the response was YES. [2024-11-08 17:34:19,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38443 conditions, 12732 events. 4111/12732 cut-off events. For 15762/15857 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 106101 event pairs, 787 based on Foata normal form. 37/12138 useless extension candidates. Maximal degree in co-relation 38294. Up to 4181 conditions per place. [2024-11-08 17:34:19,348 INFO L140 encePairwiseOnDemand]: 216/273 looper letters, 921 selfloop transitions, 276 changer transitions 0/1416 dead transitions. [2024-11-08 17:34:19,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1416 transitions, 11032 flow [2024-11-08 17:34:19,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 17:34:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-08 17:34:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5542 transitions. [2024-11-08 17:34:19,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6548505258182677 [2024-11-08 17:34:19,361 INFO L175 Difference]: Start difference. First operand has 319 places, 919 transitions, 5722 flow. Second operand 31 states and 5542 transitions. [2024-11-08 17:34:19,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1416 transitions, 11032 flow [2024-11-08 17:34:19,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 1416 transitions, 10672 flow, removed 180 selfloop flow, removed 0 redundant places. [2024-11-08 17:34:19,483 INFO L231 Difference]: Finished difference. Result has 374 places, 1026 transitions, 7334 flow [2024-11-08 17:34:19,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5362, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=696, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=7334, PETRI_PLACES=374, PETRI_TRANSITIONS=1026} [2024-11-08 17:34:19,485 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 100 predicate places. [2024-11-08 17:34:19,485 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 1026 transitions, 7334 flow [2024-11-08 17:34:19,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:19,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:19,488 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] [2024-11-08 17:34:19,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:34:19,488 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:34:19,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:19,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1354771187, now seen corresponding path program 2 times [2024-11-08 17:34:19,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:19,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155022375] [2024-11-08 17:34:19,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:19,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:20,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:20,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155022375] [2024-11-08 17:34:20,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155022375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:20,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:20,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:34:20,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509895382] [2024-11-08 17:34:20,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:20,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:34:20,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:20,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:34:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:34:22,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-08 17:34:22,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1026 transitions, 7334 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:22,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:22,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-08 17:34:22,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:27,839 INFO L124 PetriNetUnfolderBase]: 5069/15573 cut-off events. [2024-11-08 17:34:27,840 INFO L125 PetriNetUnfolderBase]: For 29397/29730 co-relation queries the response was YES. [2024-11-08 17:34:27,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52356 conditions, 15573 events. 5069/15573 cut-off events. For 29397/29730 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 134860 event pairs, 792 based on Foata normal form. 38/14883 useless extension candidates. Maximal degree in co-relation 52181. Up to 2883 conditions per place. [2024-11-08 17:34:27,999 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1340 selfloop transitions, 200 changer transitions 0/1759 dead transitions. [2024-11-08 17:34:27,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 1759 transitions, 16168 flow [2024-11-08 17:34:28,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:34:28,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-08 17:34:28,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3946 transitions. [2024-11-08 17:34:28,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.657009657009657 [2024-11-08 17:34:28,012 INFO L175 Difference]: Start difference. First operand has 374 places, 1026 transitions, 7334 flow. Second operand 22 states and 3946 transitions. [2024-11-08 17:34:28,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 1759 transitions, 16168 flow [2024-11-08 17:34:28,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1759 transitions, 15958 flow, removed 64 selfloop flow, removed 5 redundant places. [2024-11-08 17:34:28,343 INFO L231 Difference]: Finished difference. Result has 404 places, 1170 transitions, 9471 flow [2024-11-08 17:34:28,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=7194, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1026, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=9471, PETRI_PLACES=404, PETRI_TRANSITIONS=1170} [2024-11-08 17:34:28,348 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 130 predicate places. [2024-11-08 17:34:28,348 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 1170 transitions, 9471 flow [2024-11-08 17:34:28,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:28,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:28,351 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] [2024-11-08 17:34:28,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:34:28,351 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:34:28,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:28,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1607566088, now seen corresponding path program 1 times [2024-11-08 17:34:28,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:28,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944915567] [2024-11-08 17:34:28,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:28,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:29,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:29,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:29,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944915567] [2024-11-08 17:34:29,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944915567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:29,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:29,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:34:29,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989952151] [2024-11-08 17:34:29,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:29,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:34:29,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:29,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:34:29,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:34:31,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-08 17:34:31,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 1170 transitions, 9471 flow. Second operand has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:31,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:31,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-08 17:34:31,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:38,872 INFO L124 PetriNetUnfolderBase]: 6150/18399 cut-off events. [2024-11-08 17:34:38,872 INFO L125 PetriNetUnfolderBase]: For 47860/48234 co-relation queries the response was YES. [2024-11-08 17:34:39,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67252 conditions, 18399 events. 6150/18399 cut-off events. For 47860/48234 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 162462 event pairs, 1277 based on Foata normal form. 93/17663 useless extension candidates. Maximal degree in co-relation 67064. Up to 5066 conditions per place. [2024-11-08 17:34:39,080 INFO L140 encePairwiseOnDemand]: 221/273 looper letters, 1517 selfloop transitions, 209 changer transitions 0/1975 dead transitions. [2024-11-08 17:34:39,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1975 transitions, 20177 flow [2024-11-08 17:34:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:34:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-08 17:34:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3983 transitions. [2024-11-08 17:34:39,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6631701631701632 [2024-11-08 17:34:39,089 INFO L175 Difference]: Start difference. First operand has 404 places, 1170 transitions, 9471 flow. Second operand 22 states and 3983 transitions. [2024-11-08 17:34:39,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1975 transitions, 20177 flow [2024-11-08 17:34:39,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 1975 transitions, 19906 flow, removed 109 selfloop flow, removed 2 redundant places. [2024-11-08 17:34:39,644 INFO L231 Difference]: Finished difference. Result has 438 places, 1315 transitions, 11526 flow [2024-11-08 17:34:39,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=9268, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=998, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11526, PETRI_PLACES=438, PETRI_TRANSITIONS=1315} [2024-11-08 17:34:39,646 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 164 predicate places. [2024-11-08 17:34:39,646 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1315 transitions, 11526 flow [2024-11-08 17:34:39,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.8) internal successors, (2397), 15 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:39,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:39,647 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:39,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:34:39,647 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:34:39,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:39,647 INFO L85 PathProgramCache]: Analyzing trace with hash -487167867, now seen corresponding path program 3 times [2024-11-08 17:34:39,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:39,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413966168] [2024-11-08 17:34:39,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:39,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:40,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:40,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:40,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413966168] [2024-11-08 17:34:40,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413966168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:40,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:40,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:34:40,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704961229] [2024-11-08 17:34:40,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:40,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:34:40,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:40,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:34:40,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:34:42,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-08 17:34:42,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1315 transitions, 11526 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:42,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:42,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-08 17:34:42,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:50,608 INFO L124 PetriNetUnfolderBase]: 7136/21244 cut-off events. [2024-11-08 17:34:50,608 INFO L125 PetriNetUnfolderBase]: For 65009/65795 co-relation queries the response was YES. [2024-11-08 17:34:50,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82993 conditions, 21244 events. 7136/21244 cut-off events. For 65009/65795 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 193794 event pairs, 2002 based on Foata normal form. 104/20381 useless extension candidates. Maximal degree in co-relation 82786. Up to 10216 conditions per place. [2024-11-08 17:34:50,875 INFO L140 encePairwiseOnDemand]: 215/273 looper letters, 1447 selfloop transitions, 208 changer transitions 0/1901 dead transitions. [2024-11-08 17:34:50,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 1901 transitions, 20196 flow [2024-11-08 17:34:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:34:50,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 17:34:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3044 transitions. [2024-11-08 17:34:50,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6558931264813618 [2024-11-08 17:34:50,883 INFO L175 Difference]: Start difference. First operand has 438 places, 1315 transitions, 11526 flow. Second operand 17 states and 3044 transitions. [2024-11-08 17:34:50,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 1901 transitions, 20196 flow [2024-11-08 17:34:51,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 1901 transitions, 20053 flow, removed 54 selfloop flow, removed 2 redundant places. [2024-11-08 17:34:51,614 INFO L231 Difference]: Finished difference. Result has 467 places, 1434 transitions, 14042 flow [2024-11-08 17:34:51,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=11471, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14042, PETRI_PLACES=467, PETRI_TRANSITIONS=1434} [2024-11-08 17:34:51,616 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 193 predicate places. [2024-11-08 17:34:51,616 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 1434 transitions, 14042 flow [2024-11-08 17:34:51,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:51,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:51,617 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] [2024-11-08 17:34:51,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:34:51,617 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-08 17:34:51,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:51,618 INFO L85 PathProgramCache]: Analyzing trace with hash -362995283, now seen corresponding path program 4 times [2024-11-08 17:34:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:51,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12459215] [2024-11-08 17:34:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:52,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:52,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12459215] [2024-11-08 17:34:52,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12459215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:52,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:52,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:34:52,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537650188] [2024-11-08 17:34:52,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:52,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:34:52,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:52,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:34:52,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:34:54,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 273 [2024-11-08 17:34:54,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1434 transitions, 14042 flow. Second operand has 15 states, 15 states have (on average 159.86666666666667) internal successors, (2398), 15 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:34:54,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:54,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 273 [2024-11-08 17:34:54,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand