./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edbdacd2fc511db63719a3e7d2bd257b6310a833f5bcfcddcb6829e714260082 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:12:47,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:12:47,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 10:12:47,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:12:47,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:12:47,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:12:47,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:12:47,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:12:47,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:12:47,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:12:47,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:12:47,306 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:12:47,306 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:12:47,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:12:47,307 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 10:12:47,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:12:47,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:12:47,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:12:47,308 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:12:47,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:12:47,308 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:12:47,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:12:47,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:12:47,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:12:47,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:12:47,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:12:47,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:12:47,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:12:47,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:12:47,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:12:47,309 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:12:47,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:12:47,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:12:47,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:12:47,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:12:47,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:12:47,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:12:47,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:12:47,310 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edbdacd2fc511db63719a3e7d2bd257b6310a833f5bcfcddcb6829e714260082 [2024-12-02 10:12:47,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:12:47,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:12:47,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:12:47,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:12:47,528 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:12:47,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i [2024-12-02 10:12:50,122 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/data/08fe306ae/a6b96e8c312b4948b957e7d006a0d298/FLAG5f60d7dc9 [2024-12-02 10:12:50,402 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:12:50,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/sv-benchmarks/c/goblint-regression/09-regions_23-evilcollapse_rc.i [2024-12-02 10:12:50,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/data/08fe306ae/a6b96e8c312b4948b957e7d006a0d298/FLAG5f60d7dc9 [2024-12-02 10:12:50,704 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/data/08fe306ae/a6b96e8c312b4948b957e7d006a0d298 [2024-12-02 10:12:50,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:12:50,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:12:50,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:12:50,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:12:50,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:12:50,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:12:50" (1/1) ... [2024-12-02 10:12:50,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64efd339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:50, skipping insertion in model container [2024-12-02 10:12:50,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:12:50" (1/1) ... [2024-12-02 10:12:50,744 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:12:51,044 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 10:12:51,045 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 10:12:51,046 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 10:12:51,047 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 10:12:51,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:12:51,096 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:12:51,137 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 10:12:51,138 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 10:12:51,138 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 10:12:51,139 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 10:12:51,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:12:51,195 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:12:51,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51 WrapperNode [2024-12-02 10:12:51,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:12:51,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:12:51,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:12:51,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:12:51,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,242 INFO L138 Inliner]: procedures = 274, calls = 101, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 330 [2024-12-02 10:12:51,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:12:51,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:12:51,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:12:51,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:12:51,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,276 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:12:51,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:12:51,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:12:51,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:12:51,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (1/1) ... [2024-12-02 10:12:51,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:12:51,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:12:51,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:12:51,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:12:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-02 10:12:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-02 10:12:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 10:12:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-02 10:12:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 10:12:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 10:12:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 10:12:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 10:12:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 10:12:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:12:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 10:12:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 10:12:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:12:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:12:51,346 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 10:12:51,471 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:12:51,472 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:12:52,011 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 10:12:52,011 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:12:52,037 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:12:52,038 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 10:12:52,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:12:52 BoogieIcfgContainer [2024-12-02 10:12:52,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:12:52,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:12:52,040 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:12:52,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:12:52,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:12:50" (1/3) ... [2024-12-02 10:12:52,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e75e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:12:52, skipping insertion in model container [2024-12-02 10:12:52,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:12:51" (2/3) ... [2024-12-02 10:12:52,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e75e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:12:52, skipping insertion in model container [2024-12-02 10:12:52,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:12:52" (3/3) ... [2024-12-02 10:12:52,047 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_23-evilcollapse_rc.i [2024-12-02 10:12:52,062 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:12:52,063 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_23-evilcollapse_rc.i that has 2 procedures, 372 locations, 1 initial locations, 4 loop locations, and 18 error locations. [2024-12-02 10:12:52,063 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 10:12:52,170 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 10:12:52,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 453 transitions, 914 flow [2024-12-02 10:12:52,379 INFO L124 PetriNetUnfolderBase]: 16/451 cut-off events. [2024-12-02 10:12:52,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:12:52,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 451 events. 16/451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 649 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 376. Up to 2 conditions per place. [2024-12-02 10:12:52,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 444 places, 453 transitions, 914 flow [2024-12-02 10:12:52,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 451 transitions, 908 flow [2024-12-02 10:12:52,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:12:52,416 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;@d3d65a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:12:52,416 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-12-02 10:12:52,452 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:12:52,452 INFO L124 PetriNetUnfolderBase]: 1/103 cut-off events. [2024-12-02 10:12:52,452 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:12:52,452 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:12:52,453 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:12:52,453 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:12:52,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:52,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1040335099, now seen corresponding path program 1 times [2024-12-02 10:12:52,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:12:52,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263481021] [2024-12-02 10:12:52,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:52,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:12:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:12:53,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:12:53,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263481021] [2024-12-02 10:12:53,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263481021] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:53,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:53,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:12:53,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196610631] [2024-12-02 10:12:53,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:53,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:12:53,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:12:53,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:12:53,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:12:53,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 453 [2024-12-02 10:12:53,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 451 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:53,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:12:53,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 453 [2024-12-02 10:12:53,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:12:54,509 INFO L124 PetriNetUnfolderBase]: 449/1917 cut-off events. [2024-12-02 10:12:54,509 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-12-02 10:12:54,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 1917 events. 449/1917 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10872 event pairs, 342 based on Foata normal form. 154/1858 useless extension candidates. Maximal degree in co-relation 2472. Up to 862 conditions per place. [2024-12-02 10:12:54,524 INFO L140 encePairwiseOnDemand]: 431/453 looper letters, 88 selfloop transitions, 10 changer transitions 2/439 dead transitions. [2024-12-02 10:12:54,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 439 transitions, 1080 flow [2024-12-02 10:12:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:12:54,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:12:54,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2168 transitions. [2024-12-02 10:12:54,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.797645327446652 [2024-12-02 10:12:54,546 INFO L175 Difference]: Start difference. First operand has 442 places, 451 transitions, 908 flow. Second operand 6 states and 2168 transitions. [2024-12-02 10:12:54,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 439 transitions, 1080 flow [2024-12-02 10:12:54,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 439 transitions, 1078 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:12:54,562 INFO L231 Difference]: Finished difference. Result has 443 places, 437 transitions, 898 flow [2024-12-02 10:12:54,565 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=443, PETRI_TRANSITIONS=437} [2024-12-02 10:12:54,569 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 1 predicate places. [2024-12-02 10:12:54,569 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 437 transitions, 898 flow [2024-12-02 10:12:54,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:54,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:12:54,570 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:12:54,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:12:54,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:12:54,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash -732826809, now seen corresponding path program 1 times [2024-12-02 10:12:54,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:12:54,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245926547] [2024-12-02 10:12:54,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:54,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:12:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:12:55,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:12:55,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245926547] [2024-12-02 10:12:55,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245926547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:55,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:55,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:12:55,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853771965] [2024-12-02 10:12:55,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:55,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:12:55,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:12:55,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:12:55,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:12:55,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 453 [2024-12-02 10:12:55,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 437 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:55,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:12:55,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 453 [2024-12-02 10:12:55,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:12:56,084 INFO L124 PetriNetUnfolderBase]: 449/1913 cut-off events. [2024-12-02 10:12:56,084 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:12:56,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2837 conditions, 1913 events. 449/1913 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10991 event pairs, 342 based on Foata normal form. 0/1704 useless extension candidates. Maximal degree in co-relation 2663. Up to 862 conditions per place. [2024-12-02 10:12:56,095 INFO L140 encePairwiseOnDemand]: 441/453 looper letters, 88 selfloop transitions, 10 changer transitions 0/435 dead transitions. [2024-12-02 10:12:56,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 435 transitions, 1090 flow [2024-12-02 10:12:56,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:12:56,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:12:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2158 transitions. [2024-12-02 10:12:56,101 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7939661515820456 [2024-12-02 10:12:56,101 INFO L175 Difference]: Start difference. First operand has 443 places, 437 transitions, 898 flow. Second operand 6 states and 2158 transitions. [2024-12-02 10:12:56,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 435 transitions, 1090 flow [2024-12-02 10:12:56,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 435 transitions, 1070 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:12:56,109 INFO L231 Difference]: Finished difference. Result has 439 places, 435 transitions, 894 flow [2024-12-02 10:12:56,110 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=894, PETRI_PLACES=439, PETRI_TRANSITIONS=435} [2024-12-02 10:12:56,110 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -3 predicate places. [2024-12-02 10:12:56,110 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 435 transitions, 894 flow [2024-12-02 10:12:56,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.3333333333333) internal successors, (2066), 6 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:56,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:12:56,112 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:12:56,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:12:56,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:12:56,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:56,113 INFO L85 PathProgramCache]: Analyzing trace with hash 882028107, now seen corresponding path program 1 times [2024-12-02 10:12:56,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:12:56,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56116325] [2024-12-02 10:12:56,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:56,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:12:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:12:56,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:12:56,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56116325] [2024-12-02 10:12:56,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56116325] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:56,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:56,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:12:56,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177733223] [2024-12-02 10:12:56,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:56,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:12:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:12:56,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:12:56,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:12:56,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 453 [2024-12-02 10:12:56,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 435 transitions, 894 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:56,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:12:56,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 453 [2024-12-02 10:12:56,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:12:56,341 INFO L124 PetriNetUnfolderBase]: 29/737 cut-off events. [2024-12-02 10:12:56,341 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:12:56,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 737 events. 29/737 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2132 event pairs, 18 based on Foata normal form. 1/682 useless extension candidates. Maximal degree in co-relation 510. Up to 45 conditions per place. [2024-12-02 10:12:56,345 INFO L140 encePairwiseOnDemand]: 450/453 looper letters, 11 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2024-12-02 10:12:56,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 436 transitions, 922 flow [2024-12-02 10:12:56,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:12:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:12:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1307 transitions. [2024-12-02 10:12:56,349 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9617365710080942 [2024-12-02 10:12:56,349 INFO L175 Difference]: Start difference. First operand has 439 places, 435 transitions, 894 flow. Second operand 3 states and 1307 transitions. [2024-12-02 10:12:56,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 436 transitions, 922 flow [2024-12-02 10:12:56,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 436 transitions, 902 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:12:56,358 INFO L231 Difference]: Finished difference. Result has 437 places, 436 transitions, 886 flow [2024-12-02 10:12:56,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=886, PETRI_PLACES=437, PETRI_TRANSITIONS=436} [2024-12-02 10:12:56,359 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -5 predicate places. [2024-12-02 10:12:56,360 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 436 transitions, 886 flow [2024-12-02 10:12:56,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:56,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:12:56,361 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:12:56,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:12:56,361 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:12:56,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:56,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1555551636, now seen corresponding path program 1 times [2024-12-02 10:12:56,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:12:56,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632453132] [2024-12-02 10:12:56,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:56,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:12:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:56,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:12:56,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:12:56,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632453132] [2024-12-02 10:12:56,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632453132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:56,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:56,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:12:56,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252768605] [2024-12-02 10:12:56,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:56,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:12:56,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:12:56,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:12:56,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:12:57,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 453 [2024-12-02 10:12:57,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 436 transitions, 886 flow. Second operand has 6 states, 6 states have (on average 344.6666666666667) internal successors, (2068), 6 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:57,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:12:57,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 453 [2024-12-02 10:12:57,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:12:57,759 INFO L124 PetriNetUnfolderBase]: 450/2035 cut-off events. [2024-12-02 10:12:57,759 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 10:12:57,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3003 conditions, 2035 events. 450/2035 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11305 event pairs, 342 based on Foata normal form. 0/1822 useless extension candidates. Maximal degree in co-relation 2746. Up to 910 conditions per place. [2024-12-02 10:12:57,767 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 95 selfloop transitions, 5 changer transitions 0/435 dead transitions. [2024-12-02 10:12:57,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 435 transitions, 1084 flow [2024-12-02 10:12:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:12:57,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:12:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2024-12-02 10:12:57,771 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7921265636497424 [2024-12-02 10:12:57,771 INFO L175 Difference]: Start difference. First operand has 437 places, 436 transitions, 886 flow. Second operand 6 states and 2153 transitions. [2024-12-02 10:12:57,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 435 transitions, 1084 flow [2024-12-02 10:12:57,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 435 transitions, 1082 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:12:57,776 INFO L231 Difference]: Finished difference. Result has 440 places, 435 transitions, 892 flow [2024-12-02 10:12:57,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=892, PETRI_PLACES=440, PETRI_TRANSITIONS=435} [2024-12-02 10:12:57,777 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -2 predicate places. [2024-12-02 10:12:57,777 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 435 transitions, 892 flow [2024-12-02 10:12:57,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.6666666666667) internal successors, (2068), 6 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:57,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:12:57,778 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:12:57,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:12:57,778 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:12:57,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:57,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1578755745, now seen corresponding path program 1 times [2024-12-02 10:12:57,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:12:57,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647188650] [2024-12-02 10:12:57,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:57,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:12:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:12:57,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:12:57,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647188650] [2024-12-02 10:12:57,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647188650] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:57,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:57,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:12:57,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099834355] [2024-12-02 10:12:57,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:57,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:12:57,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:12:57,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:12:57,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:12:57,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 453 [2024-12-02 10:12:57,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 435 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:57,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:12:57,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 453 [2024-12-02 10:12:57,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:12:57,960 INFO L124 PetriNetUnfolderBase]: 29/923 cut-off events. [2024-12-02 10:12:57,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:12:57,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 923 events. 29/923 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2423 event pairs, 18 based on Foata normal form. 2/863 useless extension candidates. Maximal degree in co-relation 588. Up to 49 conditions per place. [2024-12-02 10:12:57,963 INFO L140 encePairwiseOnDemand]: 450/453 looper letters, 11 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2024-12-02 10:12:57,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 436 transitions, 920 flow [2024-12-02 10:12:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:12:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:12:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1307 transitions. [2024-12-02 10:12:57,966 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9617365710080942 [2024-12-02 10:12:57,966 INFO L175 Difference]: Start difference. First operand has 440 places, 435 transitions, 892 flow. Second operand 3 states and 1307 transitions. [2024-12-02 10:12:57,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 436 transitions, 920 flow [2024-12-02 10:12:57,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 436 transitions, 910 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:12:57,972 INFO L231 Difference]: Finished difference. Result has 438 places, 436 transitions, 894 flow [2024-12-02 10:12:57,973 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=438, PETRI_TRANSITIONS=436} [2024-12-02 10:12:57,973 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -4 predicate places. [2024-12-02 10:12:57,974 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 436 transitions, 894 flow [2024-12-02 10:12:57,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:57,975 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:12:57,975 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:12:57,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:12:57,975 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:12:57,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:57,976 INFO L85 PathProgramCache]: Analyzing trace with hash 85943675, now seen corresponding path program 1 times [2024-12-02 10:12:57,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:12:57,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260271059] [2024-12-02 10:12:57,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:57,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:12:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:12:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:12:58,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:12:58,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260271059] [2024-12-02 10:12:58,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260271059] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:12:58,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:12:58,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:12:58,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609794873] [2024-12-02 10:12:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:12:58,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:12:58,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:12:58,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:12:58,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:12:59,169 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2024-12-02 10:12:59,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 436 transitions, 894 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:59,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:12:59,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2024-12-02 10:12:59,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:12:59,442 INFO L124 PetriNetUnfolderBase]: 75/1235 cut-off events. [2024-12-02 10:12:59,442 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 10:12:59,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1235 events. 75/1235 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4472 event pairs, 42 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 1032. Up to 267 conditions per place. [2024-12-02 10:12:59,448 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 58 selfloop transitions, 5 changer transitions 0/435 dead transitions. [2024-12-02 10:12:59,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 435 transitions, 1018 flow [2024-12-02 10:12:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:12:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:12:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2338 transitions. [2024-12-02 10:12:59,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8601913171449596 [2024-12-02 10:12:59,454 INFO L175 Difference]: Start difference. First operand has 438 places, 436 transitions, 894 flow. Second operand 6 states and 2338 transitions. [2024-12-02 10:12:59,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 435 transitions, 1018 flow [2024-12-02 10:12:59,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 435 transitions, 1016 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:12:59,461 INFO L231 Difference]: Finished difference. Result has 441 places, 435 transitions, 900 flow [2024-12-02 10:12:59,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=900, PETRI_PLACES=441, PETRI_TRANSITIONS=435} [2024-12-02 10:12:59,462 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -1 predicate places. [2024-12-02 10:12:59,462 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 435 transitions, 900 flow [2024-12-02 10:12:59,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:12:59,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:12:59,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:12:59,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:12:59,464 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:12:59,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:12:59,464 INFO L85 PathProgramCache]: Analyzing trace with hash -821979176, now seen corresponding path program 1 times [2024-12-02 10:12:59,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:12:59,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676279307] [2024-12-02 10:12:59,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:12:59,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:12:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 10:13:00,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:00,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676279307] [2024-12-02 10:13:00,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676279307] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:00,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:00,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:13:00,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622965017] [2024-12-02 10:13:00,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:00,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:00,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:00,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:00,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:00,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 453 [2024-12-02 10:13:00,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 435 transitions, 900 flow. Second operand has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:00,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:00,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 453 [2024-12-02 10:13:00,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:00,989 INFO L124 PetriNetUnfolderBase]: 450/2215 cut-off events. [2024-12-02 10:13:00,989 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 10:13:00,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 2215 events. 450/2215 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12009 event pairs, 342 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 2789. Up to 976 conditions per place. [2024-12-02 10:13:00,998 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 95 selfloop transitions, 5 changer transitions 0/434 dead transitions. [2024-12-02 10:13:00,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 434 transitions, 1098 flow [2024-12-02 10:13:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:13:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:13:01,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2024-12-02 10:13:01,003 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7921265636497424 [2024-12-02 10:13:01,003 INFO L175 Difference]: Start difference. First operand has 441 places, 435 transitions, 900 flow. Second operand 6 states and 2153 transitions. [2024-12-02 10:13:01,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 434 transitions, 1098 flow [2024-12-02 10:13:01,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 434 transitions, 1088 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:13:01,008 INFO L231 Difference]: Finished difference. Result has 440 places, 434 transitions, 898 flow [2024-12-02 10:13:01,009 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=440, PETRI_TRANSITIONS=434} [2024-12-02 10:13:01,009 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -2 predicate places. [2024-12-02 10:13:01,009 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 434 transitions, 898 flow [2024-12-02 10:13:01,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 347.3333333333333) internal successors, (2084), 6 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:01,011 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:01,011 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:01,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:13:01,011 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:01,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash 755759462, now seen corresponding path program 1 times [2024-12-02 10:13:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:01,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113710590] [2024-12-02 10:13:01,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:01,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:01,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 10:13:01,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:01,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113710590] [2024-12-02 10:13:01,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113710590] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:01,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:01,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:13:01,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223723792] [2024-12-02 10:13:01,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:01,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:01,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:01,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:01,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:02,025 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 453 [2024-12-02 10:13:02,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 434 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:02,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:02,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 453 [2024-12-02 10:13:02,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:02,310 INFO L124 PetriNetUnfolderBase]: 450/2211 cut-off events. [2024-12-02 10:13:02,310 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 10:13:02,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3267 conditions, 2211 events. 450/2211 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11985 event pairs, 342 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 2805. Up to 960 conditions per place. [2024-12-02 10:13:02,318 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 91 selfloop transitions, 5 changer transitions 0/433 dead transitions. [2024-12-02 10:13:02,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 433 transitions, 1088 flow [2024-12-02 10:13:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:13:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:13:02,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2173 transitions. [2024-12-02 10:13:02,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7994849153789552 [2024-12-02 10:13:02,322 INFO L175 Difference]: Start difference. First operand has 440 places, 434 transitions, 898 flow. Second operand 6 states and 2173 transitions. [2024-12-02 10:13:02,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 433 transitions, 1088 flow [2024-12-02 10:13:02,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 433 transitions, 1078 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:13:02,326 INFO L231 Difference]: Finished difference. Result has 439 places, 433 transitions, 896 flow [2024-12-02 10:13:02,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=896, PETRI_PLACES=439, PETRI_TRANSITIONS=433} [2024-12-02 10:13:02,327 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -3 predicate places. [2024-12-02 10:13:02,327 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 433 transitions, 896 flow [2024-12-02 10:13:02,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:02,329 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:02,329 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:02,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:13:02,329 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:02,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1877296969, now seen corresponding path program 1 times [2024-12-02 10:13:02,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:02,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626158292] [2024-12-02 10:13:02,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:02,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:02,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:13:02,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:02,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626158292] [2024-12-02 10:13:02,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626158292] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:02,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:02,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:13:02,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274130018] [2024-12-02 10:13:02,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:02,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:02,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:02,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:02,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:03,111 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 453 [2024-12-02 10:13:03,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 433 transitions, 896 flow. Second operand has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:03,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:03,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 453 [2024-12-02 10:13:03,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:03,402 INFO L124 PetriNetUnfolderBase]: 450/2207 cut-off events. [2024-12-02 10:13:03,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:13:03,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3263 conditions, 2207 events. 450/2207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11964 event pairs, 342 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 2820. Up to 960 conditions per place. [2024-12-02 10:13:03,410 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 91 selfloop transitions, 5 changer transitions 0/432 dead transitions. [2024-12-02 10:13:03,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 432 transitions, 1086 flow [2024-12-02 10:13:03,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:13:03,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:13:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2173 transitions. [2024-12-02 10:13:03,413 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7994849153789552 [2024-12-02 10:13:03,413 INFO L175 Difference]: Start difference. First operand has 439 places, 433 transitions, 896 flow. Second operand 6 states and 2173 transitions. [2024-12-02 10:13:03,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 432 transitions, 1086 flow [2024-12-02 10:13:03,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 432 transitions, 1076 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:13:03,420 INFO L231 Difference]: Finished difference. Result has 438 places, 432 transitions, 894 flow [2024-12-02 10:13:03,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=894, PETRI_PLACES=438, PETRI_TRANSITIONS=432} [2024-12-02 10:13:03,421 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -4 predicate places. [2024-12-02 10:13:03,421 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 432 transitions, 894 flow [2024-12-02 10:13:03,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 352.0) internal successors, (2112), 6 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:03,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:03,423 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:03,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:13:03,423 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:03,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:03,424 INFO L85 PathProgramCache]: Analyzing trace with hash -302959804, now seen corresponding path program 1 times [2024-12-02 10:13:03,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:03,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490781765] [2024-12-02 10:13:03,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:03,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:13:03,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:03,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490781765] [2024-12-02 10:13:03,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490781765] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:03,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:03,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:13:03,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28132847] [2024-12-02 10:13:03,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:03,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:03,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:03,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:03,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:04,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 453 [2024-12-02 10:13:04,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 432 transitions, 894 flow. Second operand has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:04,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:04,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 453 [2024-12-02 10:13:04,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:04,644 INFO L124 PetriNetUnfolderBase]: 450/2203 cut-off events. [2024-12-02 10:13:04,644 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 10:13:04,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3279 conditions, 2203 events. 450/2203 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11940 event pairs, 342 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 2833. Up to 980 conditions per place. [2024-12-02 10:13:04,650 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 96 selfloop transitions, 5 changer transitions 0/431 dead transitions. [2024-12-02 10:13:04,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 431 transitions, 1094 flow [2024-12-02 10:13:04,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:13:04,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:13:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2148 transitions. [2024-12-02 10:13:04,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7902869757174393 [2024-12-02 10:13:04,655 INFO L175 Difference]: Start difference. First operand has 438 places, 432 transitions, 894 flow. Second operand 6 states and 2148 transitions. [2024-12-02 10:13:04,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 431 transitions, 1094 flow [2024-12-02 10:13:04,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 431 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:13:04,659 INFO L231 Difference]: Finished difference. Result has 437 places, 431 transitions, 892 flow [2024-12-02 10:13:04,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=892, PETRI_PLACES=437, PETRI_TRANSITIONS=431} [2024-12-02 10:13:04,660 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, -5 predicate places. [2024-12-02 10:13:04,660 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 431 transitions, 892 flow [2024-12-02 10:13:04,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:04,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:04,661 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:04,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:13:04,661 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:04,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:04,661 INFO L85 PathProgramCache]: Analyzing trace with hash -945853365, now seen corresponding path program 1 times [2024-12-02 10:13:04,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:04,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053968830] [2024-12-02 10:13:04,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:04,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:13:04,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:04,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053968830] [2024-12-02 10:13:04,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053968830] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:13:04,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605482605] [2024-12-02 10:13:04,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:04,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:13:04,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:13:04,801 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:13:04,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:13:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:05,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:13:05,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:05,223 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:13:05,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:13:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:13:05,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605482605] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:13:05,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:13:05,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 10:13:05,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551915268] [2024-12-02 10:13:05,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:13:05,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:13:05,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:05,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:13:05,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:13:05,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 453 [2024-12-02 10:13:05,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 431 transitions, 892 flow. Second operand has 10 states, 10 states have (on average 429.8) internal successors, (4298), 10 states have internal predecessors, (4298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:05,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:05,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 453 [2024-12-02 10:13:05,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:05,602 INFO L124 PetriNetUnfolderBase]: 29/1087 cut-off events. [2024-12-02 10:13:05,602 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 10:13:05,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 1087 events. 29/1087 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1989 event pairs, 18 based on Foata normal form. 4/1049 useless extension candidates. Maximal degree in co-relation 581. Up to 49 conditions per place. [2024-12-02 10:13:05,604 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 15 selfloop transitions, 9 changer transitions 0/439 dead transitions. [2024-12-02 10:13:05,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 439 transitions, 958 flow [2024-12-02 10:13:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:13:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 10:13:05,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3878 transitions. [2024-12-02 10:13:05,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9511896001962227 [2024-12-02 10:13:05,609 INFO L175 Difference]: Start difference. First operand has 437 places, 431 transitions, 892 flow. Second operand 9 states and 3878 transitions. [2024-12-02 10:13:05,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 439 transitions, 958 flow [2024-12-02 10:13:05,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 439 transitions, 948 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:13:05,615 INFO L231 Difference]: Finished difference. Result has 443 places, 437 transitions, 932 flow [2024-12-02 10:13:05,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=932, PETRI_PLACES=443, PETRI_TRANSITIONS=437} [2024-12-02 10:13:05,616 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 1 predicate places. [2024-12-02 10:13:05,616 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 437 transitions, 932 flow [2024-12-02 10:13:05,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 429.8) internal successors, (4298), 10 states have internal predecessors, (4298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:05,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:05,618 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:05,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:13:05,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 10:13:05,818 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:05,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:05,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1173256925, now seen corresponding path program 2 times [2024-12-02 10:13:05,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:05,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620375949] [2024-12-02 10:13:05,819 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:13:05,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:05,895 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:13:05,896 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:13:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-12-02 10:13:06,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:06,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620375949] [2024-12-02 10:13:06,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620375949] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:06,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:06,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:13:06,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107094137] [2024-12-02 10:13:06,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:06,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:06,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:06,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:06,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:07,222 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 453 [2024-12-02 10:13:07,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 437 transitions, 932 flow. Second operand has 6 states, 6 states have (on average 377.3333333333333) internal successors, (2264), 6 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:07,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:07,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 453 [2024-12-02 10:13:07,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:07,447 INFO L124 PetriNetUnfolderBase]: 75/1401 cut-off events. [2024-12-02 10:13:07,447 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-12-02 10:13:07,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1801 conditions, 1401 events. 75/1401 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4006 event pairs, 42 based on Foata normal form. 0/1318 useless extension candidates. Maximal degree in co-relation 1161. Up to 314 conditions per place. [2024-12-02 10:13:07,451 INFO L140 encePairwiseOnDemand]: 441/453 looper letters, 61 selfloop transitions, 10 changer transitions 0/435 dead transitions. [2024-12-02 10:13:07,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 435 transitions, 1070 flow [2024-12-02 10:13:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:13:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:13:07,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2293 transitions. [2024-12-02 10:13:07,454 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8436350257542311 [2024-12-02 10:13:07,454 INFO L175 Difference]: Start difference. First operand has 443 places, 437 transitions, 932 flow. Second operand 6 states and 2293 transitions. [2024-12-02 10:13:07,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 435 transitions, 1070 flow [2024-12-02 10:13:07,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 435 transitions, 1064 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 10:13:07,459 INFO L231 Difference]: Finished difference. Result has 445 places, 435 transitions, 942 flow [2024-12-02 10:13:07,460 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=942, PETRI_PLACES=445, PETRI_TRANSITIONS=435} [2024-12-02 10:13:07,460 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 3 predicate places. [2024-12-02 10:13:07,460 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 435 transitions, 942 flow [2024-12-02 10:13:07,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 377.3333333333333) internal successors, (2264), 6 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:07,461 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:07,462 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:07,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:13:07,462 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:07,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:07,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1574659909, now seen corresponding path program 1 times [2024-12-02 10:13:07,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:07,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135304604] [2024-12-02 10:13:07,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:07,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-12-02 10:13:07,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:07,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135304604] [2024-12-02 10:13:07,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135304604] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:13:07,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763176004] [2024-12-02 10:13:07,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:07,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:13:07,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:13:07,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:13:07,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:13:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:08,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 10:13:08,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 1 proven. 399 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-12-02 10:13:08,485 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:13:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 1 proven. 399 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-12-02 10:13:08,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763176004] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:13:08,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:13:08,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-12-02 10:13:08,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372756975] [2024-12-02 10:13:08,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:13:08,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 10:13:08,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:08,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 10:13:08,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:13:08,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 453 [2024-12-02 10:13:08,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 435 transitions, 942 flow. Second operand has 19 states, 19 states have (on average 424.5263157894737) internal successors, (8066), 19 states have internal predecessors, (8066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:08,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:08,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 453 [2024-12-02 10:13:08,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:10,139 INFO L124 PetriNetUnfolderBase]: 30/2465 cut-off events. [2024-12-02 10:13:10,139 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-12-02 10:13:10,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 2465 events. 30/2465 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1968 event pairs, 18 based on Foata normal form. 13/2438 useless extension candidates. Maximal degree in co-relation 2329. Up to 51 conditions per place. [2024-12-02 10:13:10,143 INFO L140 encePairwiseOnDemand]: 442/453 looper letters, 47 selfloop transitions, 68 changer transitions 0/521 dead transitions. [2024-12-02 10:13:10,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 521 transitions, 1582 flow [2024-12-02 10:13:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-12-02 10:13:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-12-02 10:13:10,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 26714 transitions. [2024-12-02 10:13:10,160 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.936052419496128 [2024-12-02 10:13:10,160 INFO L175 Difference]: Start difference. First operand has 445 places, 435 transitions, 942 flow. Second operand 63 states and 26714 transitions. [2024-12-02 10:13:10,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 521 transitions, 1582 flow [2024-12-02 10:13:10,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 521 transitions, 1562 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:13:10,166 INFO L231 Difference]: Finished difference. Result has 518 places, 497 transitions, 1442 flow [2024-12-02 10:13:10,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1442, PETRI_PLACES=518, PETRI_TRANSITIONS=497} [2024-12-02 10:13:10,167 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 76 predicate places. [2024-12-02 10:13:10,167 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 497 transitions, 1442 flow [2024-12-02 10:13:10,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 424.5263157894737) internal successors, (8066), 19 states have internal predecessors, (8066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:10,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:10,170 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:10,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:13:10,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:13:10,371 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:10,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:10,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1713339501, now seen corresponding path program 2 times [2024-12-02 10:13:10,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:10,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184783379] [2024-12-02 10:13:10,373 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:13:10,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:10,576 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:13:10,576 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:13:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12365 trivial. 0 not checked. [2024-12-02 10:13:10,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184783379] [2024-12-02 10:13:10,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184783379] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:10,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:10,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:13:10,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434518107] [2024-12-02 10:13:10,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:10,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:10,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:10,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:10,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:11,430 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2024-12-02 10:13:11,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 497 transitions, 1442 flow. Second operand has 6 states, 6 states have (on average 386.3333333333333) internal successors, (2318), 6 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:11,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:11,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2024-12-02 10:13:11,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:12,547 INFO L124 PetriNetUnfolderBase]: 188/3246 cut-off events. [2024-12-02 10:13:12,547 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2024-12-02 10:13:12,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4504 conditions, 3246 events. 188/3246 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7999 event pairs, 126 based on Foata normal form. 0/3087 useless extension candidates. Maximal degree in co-relation 2458. Up to 899 conditions per place. [2024-12-02 10:13:12,555 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 58 selfloop transitions, 5 changer transitions 0/496 dead transitions. [2024-12-02 10:13:12,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 496 transitions, 1566 flow [2024-12-02 10:13:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:13:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:13:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2338 transitions. [2024-12-02 10:13:12,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8601913171449596 [2024-12-02 10:13:12,556 INFO L175 Difference]: Start difference. First operand has 518 places, 497 transitions, 1442 flow. Second operand 6 states and 2338 transitions. [2024-12-02 10:13:12,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 496 transitions, 1566 flow [2024-12-02 10:13:12,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 496 transitions, 1490 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-12-02 10:13:12,564 INFO L231 Difference]: Finished difference. Result has 515 places, 496 transitions, 1374 flow [2024-12-02 10:13:12,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1374, PETRI_PLACES=515, PETRI_TRANSITIONS=496} [2024-12-02 10:13:12,565 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 73 predicate places. [2024-12-02 10:13:12,565 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 496 transitions, 1374 flow [2024-12-02 10:13:12,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 386.3333333333333) internal successors, (2318), 6 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:12,566 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:12,566 INFO L206 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:12,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:13:12,566 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:12,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:12,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1773093017, now seen corresponding path program 1 times [2024-12-02 10:13:12,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:12,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439804186] [2024-12-02 10:13:12,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-12-02 10:13:15,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:15,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439804186] [2024-12-02 10:13:15,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439804186] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:13:15,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023039597] [2024-12-02 10:13:15,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:15,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:13:15,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:13:15,729 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:13:15,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:13:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:16,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 5753 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:13:16,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:17,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-12-02 10:13:17,526 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:13:18,251 INFO L134 CoverageAnalysis]: Checked inductivity of 12365 backedges. 6508 proven. 2779 refuted. 0 times theorem prover too weak. 3078 trivial. 0 not checked. [2024-12-02 10:13:18,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023039597] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:13:18,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:13:18,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-12-02 10:13:18,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220277658] [2024-12-02 10:13:18,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:13:18,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 10:13:18,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:18,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 10:13:18,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 10:13:18,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 453 [2024-12-02 10:13:18,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 496 transitions, 1374 flow. Second operand has 34 states, 34 states have (on average 430.11764705882354) internal successors, (14624), 34 states have internal predecessors, (14624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:18,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:18,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 453 [2024-12-02 10:13:18,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:20,630 INFO L124 PetriNetUnfolderBase]: 30/4624 cut-off events. [2024-12-02 10:13:20,630 INFO L125 PetriNetUnfolderBase]: For 3207/3207 co-relation queries the response was YES. [2024-12-02 10:13:20,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5435 conditions, 4624 events. 30/4624 cut-off events. For 3207/3207 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1965 event pairs, 18 based on Foata normal form. 24/4609 useless extension candidates. Maximal degree in co-relation 5016. Up to 78 conditions per place. [2024-12-02 10:13:20,637 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 47 selfloop transitions, 135 changer transitions 0/597 dead transitions. [2024-12-02 10:13:20,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 597 transitions, 2502 flow [2024-12-02 10:13:20,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 10:13:20,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-12-02 10:13:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 19340 transitions. [2024-12-02 10:13:20,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9487368162864852 [2024-12-02 10:13:20,645 INFO L175 Difference]: Start difference. First operand has 515 places, 496 transitions, 1374 flow. Second operand 45 states and 19340 transitions. [2024-12-02 10:13:20,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 597 transitions, 2502 flow [2024-12-02 10:13:20,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 597 transitions, 2492 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:13:20,655 INFO L231 Difference]: Finished difference. Result has 563 places, 571 transitions, 2238 flow [2024-12-02 10:13:20,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2238, PETRI_PLACES=563, PETRI_TRANSITIONS=571} [2024-12-02 10:13:20,656 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 121 predicate places. [2024-12-02 10:13:20,656 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 571 transitions, 2238 flow [2024-12-02 10:13:20,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 430.11764705882354) internal successors, (14624), 34 states have internal predecessors, (14624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:20,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:20,659 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:20,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:13:20,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 10:13:20,859 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:20,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash 258921319, now seen corresponding path program 2 times [2024-12-02 10:13:20,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:20,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935618224] [2024-12-02 10:13:20,864 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:13:20,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:21,347 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:13:21,347 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:13:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 58141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58141 trivial. 0 not checked. [2024-12-02 10:13:21,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:21,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935618224] [2024-12-02 10:13:21,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935618224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:21,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:21,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:13:21,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38323820] [2024-12-02 10:13:21,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:21,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:21,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:21,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:21,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:13:22,104 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 453 [2024-12-02 10:13:22,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 571 transitions, 2238 flow. Second operand has 6 states, 6 states have (on average 351.1666666666667) internal successors, (2107), 6 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:22,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:22,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 453 [2024-12-02 10:13:22,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:28,134 INFO L124 PetriNetUnfolderBase]: 1238/7754 cut-off events. [2024-12-02 10:13:28,134 INFO L125 PetriNetUnfolderBase]: For 1218/1218 co-relation queries the response was YES. [2024-12-02 10:13:28,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12021 conditions, 7754 events. 1238/7754 cut-off events. For 1218/1218 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 28189 event pairs, 1026 based on Foata normal form. 0/7369 useless extension candidates. Maximal degree in co-relation 7662. Up to 3430 conditions per place. [2024-12-02 10:13:28,160 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 96 selfloop transitions, 5 changer transitions 0/570 dead transitions. [2024-12-02 10:13:28,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 570 transitions, 2438 flow [2024-12-02 10:13:28,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:13:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:13:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2148 transitions. [2024-12-02 10:13:28,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7902869757174393 [2024-12-02 10:13:28,163 INFO L175 Difference]: Start difference. First operand has 563 places, 571 transitions, 2238 flow. Second operand 6 states and 2148 transitions. [2024-12-02 10:13:28,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 570 transitions, 2438 flow [2024-12-02 10:13:28,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 570 transitions, 2330 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-12-02 10:13:28,182 INFO L231 Difference]: Finished difference. Result has 549 places, 570 transitions, 2138 flow [2024-12-02 10:13:28,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2138, PETRI_PLACES=549, PETRI_TRANSITIONS=570} [2024-12-02 10:13:28,183 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 107 predicate places. [2024-12-02 10:13:28,183 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 570 transitions, 2138 flow [2024-12-02 10:13:28,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 351.1666666666667) internal successors, (2107), 6 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:28,183 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:28,184 INFO L206 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:28,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:13:28,184 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:28,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1369528204, now seen corresponding path program 1 times [2024-12-02 10:13:28,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:28,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290012738] [2024-12-02 10:13:28,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:28,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 58562 backedges. 29966 proven. 13875 refuted. 0 times theorem prover too weak. 14721 trivial. 0 not checked. [2024-12-02 10:13:41,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:41,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290012738] [2024-12-02 10:13:41,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290012738] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:13:41,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313767331] [2024-12-02 10:13:41,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:41,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:13:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:13:41,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:13:41,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:13:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:44,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 11716 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 10:13:44,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:13:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 58562 backedges. 29966 proven. 13875 refuted. 0 times theorem prover too weak. 14721 trivial. 0 not checked. [2024-12-02 10:13:45,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:13:47,248 INFO L134 CoverageAnalysis]: Checked inductivity of 58562 backedges. 29966 proven. 13875 refuted. 0 times theorem prover too weak. 14721 trivial. 0 not checked. [2024-12-02 10:13:47,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313767331] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:13:47,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:13:47,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-12-02 10:13:47,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236737831] [2024-12-02 10:13:47,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:13:47,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-12-02 10:13:47,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:47,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-12-02 10:13:47,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-12-02 10:13:47,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 453 [2024-12-02 10:13:47,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 570 transitions, 2138 flow. Second operand has 63 states, 63 states have (on average 430.12698412698415) internal successors, (27098), 63 states have internal predecessors, (27098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:47,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:47,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 453 [2024-12-02 10:13:47,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:58,670 INFO L124 PetriNetUnfolderBase]: 30/8673 cut-off events. [2024-12-02 10:13:58,670 INFO L125 PetriNetUnfolderBase]: For 13371/13371 co-relation queries the response was YES. [2024-12-02 10:13:58,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10603 conditions, 8673 events. 30/8673 cut-off events. For 13371/13371 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1965 event pairs, 18 based on Foata normal form. 45/8680 useless extension candidates. Maximal degree in co-relation 10183. Up to 168 conditions per place. [2024-12-02 10:13:58,686 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 92 selfloop transitions, 270 changer transitions 0/776 dead transitions. [2024-12-02 10:13:58,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 776 transitions, 5048 flow [2024-12-02 10:13:58,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-12-02 10:13:58,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-12-02 10:13:58,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 38667 transitions. [2024-12-02 10:13:58,713 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9484179543782193 [2024-12-02 10:13:58,713 INFO L175 Difference]: Start difference. First operand has 549 places, 570 transitions, 2138 flow. Second operand 90 states and 38667 transitions. [2024-12-02 10:13:58,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 638 places, 776 transitions, 5048 flow [2024-12-02 10:13:58,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 776 transitions, 5038 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 10:13:58,738 INFO L231 Difference]: Finished difference. Result has 649 places, 708 transitions, 4120 flow [2024-12-02 10:13:58,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4120, PETRI_PLACES=649, PETRI_TRANSITIONS=708} [2024-12-02 10:13:58,739 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 207 predicate places. [2024-12-02 10:13:58,739 INFO L471 AbstractCegarLoop]: Abstraction has has 649 places, 708 transitions, 4120 flow [2024-12-02 10:13:58,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 430.12698412698415) internal successors, (27098), 63 states have internal predecessors, (27098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:58,743 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:58,744 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:58,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:13:58,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 10:13:58,944 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:13:58,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:58,955 INFO L85 PathProgramCache]: Analyzing trace with hash 762555380, now seen corresponding path program 2 times [2024-12-02 10:13:58,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:58,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593309597] [2024-12-02 10:13:58,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:13:58,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:59,539 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:13:59,539 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:13:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 235892 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235892 trivial. 0 not checked. [2024-12-02 10:13:59,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:59,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593309597] [2024-12-02 10:13:59,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593309597] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:59,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:59,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:13:59,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723084651] [2024-12-02 10:13:59,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:59,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:13:59,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:59,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:13:59,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:14:00,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 453 [2024-12-02 10:14:00,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 708 transitions, 4120 flow. Second operand has 6 states, 6 states have (on average 388.1666666666667) internal successors, (2329), 6 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:00,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:00,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 453 [2024-12-02 10:14:00,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:11,235 INFO L124 PetriNetUnfolderBase]: 200/9574 cut-off events. [2024-12-02 10:14:11,235 INFO L125 PetriNetUnfolderBase]: For 3537/3537 co-relation queries the response was YES. [2024-12-02 10:14:11,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14432 conditions, 9574 events. 200/9574 cut-off events. For 3537/3537 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8950 event pairs, 54 based on Foata normal form. 0/9432 useless extension candidates. Maximal degree in co-relation 8410. Up to 2812 conditions per place. [2024-12-02 10:14:11,262 INFO L140 encePairwiseOnDemand]: 441/453 looper letters, 75 selfloop transitions, 23 changer transitions 0/743 dead transitions. [2024-12-02 10:14:11,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 743 transitions, 4394 flow [2024-12-02 10:14:11,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:14:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:14:11,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2379 transitions. [2024-12-02 10:14:11,265 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8752759381898455 [2024-12-02 10:14:11,265 INFO L175 Difference]: Start difference. First operand has 649 places, 708 transitions, 4120 flow. Second operand 6 states and 2379 transitions. [2024-12-02 10:14:11,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 654 places, 743 transitions, 4394 flow [2024-12-02 10:14:11,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 743 transitions, 4040 flow, removed 51 selfloop flow, removed 42 redundant places. [2024-12-02 10:14:11,295 INFO L231 Difference]: Finished difference. Result has 617 places, 730 transitions, 3924 flow [2024-12-02 10:14:11,296 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=3766, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=697, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3924, PETRI_PLACES=617, PETRI_TRANSITIONS=730} [2024-12-02 10:14:11,296 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 175 predicate places. [2024-12-02 10:14:11,296 INFO L471 AbstractCegarLoop]: Abstraction has has 617 places, 730 transitions, 3924 flow [2024-12-02 10:14:11,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 388.1666666666667) internal successors, (2329), 6 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:11,296 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:11,297 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:11,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:14:11,297 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:14:11,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:11,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1283815442, now seen corresponding path program 1 times [2024-12-02 10:14:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:11,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282136418] [2024-12-02 10:14:11,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:11,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 236737 backedges. 1680 proven. 118891 refuted. 0 times theorem prover too weak. 116166 trivial. 0 not checked. [2024-12-02 10:14:28,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:28,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282136418] [2024-12-02 10:14:28,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282136418] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:14:28,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633239094] [2024-12-02 10:14:28,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:28,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:14:28,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:14:28,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:14:28,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:14:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:33,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 22774 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:14:33,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:14:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 236737 backedges. 1680 proven. 118891 refuted. 0 times theorem prover too weak. 116166 trivial. 0 not checked. [2024-12-02 10:14:39,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:14:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 236737 backedges. 1680 proven. 118891 refuted. 0 times theorem prover too weak. 116166 trivial. 0 not checked. [2024-12-02 10:14:44,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633239094] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:14:44,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:14:44,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-12-02 10:14:44,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725905490] [2024-12-02 10:14:44,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:14:44,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:14:44,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:44,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:14:44,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:14:44,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 453 [2024-12-02 10:14:44,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 730 transitions, 3924 flow. Second operand has 14 states, 14 states have (on average 430.07142857142856) internal successors, (6021), 14 states have internal predecessors, (6021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:44,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:44,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 453 [2024-12-02 10:14:44,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:15:04,936 INFO L124 PetriNetUnfolderBase]: 188/15194 cut-off events. [2024-12-02 10:15:04,936 INFO L125 PetriNetUnfolderBase]: For 6197/6201 co-relation queries the response was YES. [2024-12-02 10:15:04,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18584 conditions, 15194 events. 188/15194 cut-off events. For 6197/6201 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8290 event pairs, 55 based on Foata normal form. 3/15028 useless extension candidates. Maximal degree in co-relation 17227. Up to 280 conditions per place. [2024-12-02 10:15:04,968 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 17 selfloop transitions, 15 changer transitions 0/743 dead transitions. [2024-12-02 10:15:04,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 743 transitions, 4034 flow [2024-12-02 10:15:04,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:15:04,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-02 10:15:04,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 6455 transitions. [2024-12-02 10:15:04,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9499632082413539 [2024-12-02 10:15:04,973 INFO L175 Difference]: Start difference. First operand has 617 places, 730 transitions, 3924 flow. Second operand 15 states and 6455 transitions. [2024-12-02 10:15:04,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 743 transitions, 4034 flow [2024-12-02 10:15:05,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 743 transitions, 4034 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 10:15:05,029 INFO L231 Difference]: Finished difference. Result has 635 places, 739 transitions, 4014 flow [2024-12-02 10:15:05,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=3924, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=721, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4014, PETRI_PLACES=635, PETRI_TRANSITIONS=739} [2024-12-02 10:15:05,030 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 193 predicate places. [2024-12-02 10:15:05,030 INFO L471 AbstractCegarLoop]: Abstraction has has 635 places, 739 transitions, 4014 flow [2024-12-02 10:15:05,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 430.07142857142856) internal successors, (6021), 14 states have internal predecessors, (6021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:05,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:15:05,032 INFO L206 CegarLoopForPetriNet]: trace histogram [150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:05,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 10:15:05,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c2d0851-df6b-49e0-a839-9334e01d4116/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:05,233 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:15:05,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:05,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1316350514, now seen corresponding path program 2 times [2024-12-02 10:15:05,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:05,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017548879] [2024-12-02 10:15:05,270 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:15:05,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:06,905 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:15:06,905 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:15:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1483501 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1483501 trivial. 0 not checked. [2024-12-02 10:15:07,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:15:07,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017548879] [2024-12-02 10:15:07,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017548879] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:07,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:07,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:15:07,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347841017] [2024-12-02 10:15:07,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:07,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:07,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:15:07,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:07,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:08,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 453 [2024-12-02 10:15:08,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 739 transitions, 4014 flow. Second operand has 6 states, 6 states have (on average 388.3333333333333) internal successors, (2330), 6 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:08,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:15:08,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 453 [2024-12-02 10:15:08,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:15:40,899 INFO L124 PetriNetUnfolderBase]: 313/15750 cut-off events. [2024-12-02 10:15:40,899 INFO L125 PetriNetUnfolderBase]: For 6420/6456 co-relation queries the response was YES. [2024-12-02 10:15:40,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23834 conditions, 15750 events. 313/15750 cut-off events. For 6420/6456 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 14576 event pairs, 61 based on Foata normal form. 8/15544 useless extension candidates. Maximal degree in co-relation 21619. Up to 4641 conditions per place. [2024-12-02 10:15:40,941 INFO L140 encePairwiseOnDemand]: 441/453 looper letters, 88 selfloop transitions, 31 changer transitions 0/778 dead transitions. [2024-12-02 10:15:40,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 778 transitions, 4372 flow [2024-12-02 10:15:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:15:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2375 transitions. [2024-12-02 10:15:40,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8738042678440029 [2024-12-02 10:15:40,943 INFO L175 Difference]: Start difference. First operand has 635 places, 739 transitions, 4014 flow. Second operand 6 states and 2375 transitions. [2024-12-02 10:15:40,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 640 places, 778 transitions, 4372 flow [2024-12-02 10:15:40,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 778 transitions, 4346 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-12-02 10:15:40,978 INFO L231 Difference]: Finished difference. Result has 641 places, 769 transitions, 4246 flow [2024-12-02 10:15:40,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=3988, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=739, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=723, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4246, PETRI_PLACES=641, PETRI_TRANSITIONS=769} [2024-12-02 10:15:40,979 INFO L279 CegarLoopForPetriNet]: 442 programPoint places, 199 predicate places. [2024-12-02 10:15:40,979 INFO L471 AbstractCegarLoop]: Abstraction has has 641 places, 769 transitions, 4246 flow [2024-12-02 10:15:40,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 388.3333333333333) internal successors, (2330), 6 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:15:40,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:15:40,981 INFO L206 CegarLoopForPetriNet]: trace histogram [150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:40,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:15:40,981 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-12-02 10:15:41,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:41,020 INFO L85 PathProgramCache]: Analyzing trace with hash 966142241, now seen corresponding path program 1 times [2024-12-02 10:15:41,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:15:41,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383703430] [2024-12-02 10:15:41,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:41,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:15:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat