./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.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_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/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_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/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_57548a05-6cae-49bd-895d-0f9bd2b46234/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 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:01:04,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:01:04,343 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 14:01:04,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:01:04,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:01:04,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:01:04,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:01:04,366 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:01:04,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:01:04,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:01:04,366 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:01:04,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:01:04,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:01:04,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:01:04,368 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 14:01:04,368 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:01:04,368 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:01:04,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:01:04,368 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:01:04,368 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:01:04,368 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:01:04,368 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:01:04,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:01:04,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:01:04,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:01:04,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:01:04,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:01:04,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:01:04,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:01:04,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:01:04,369 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:01:04,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:01:04,370 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:01:04,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:01:04,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:01:04,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:01:04,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:01:04,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:01:04,370 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_57548a05-6cae-49bd-895d-0f9bd2b46234/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 -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2024-12-02 14:01:04,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:01:04,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:01:04,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:01:04,581 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:01:04,581 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:01:04,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2024-12-02 14:01:07,169 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/data/770331ce3/95ebb7885a1f45d69ec2b3a87cb89a7b/FLAGcf7b244ed [2024-12-02 14:01:07,442 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:01:07,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2024-12-02 14:01:07,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/data/770331ce3/95ebb7885a1f45d69ec2b3a87cb89a7b/FLAGcf7b244ed [2024-12-02 14:01:07,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/data/770331ce3/95ebb7885a1f45d69ec2b3a87cb89a7b [2024-12-02 14:01:07,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:01:07,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:01:07,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:01:07,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:01:07,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:01:07,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:01:07" (1/1) ... [2024-12-02 14:01:07,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb56494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:07, skipping insertion in model container [2024-12-02 14:01:07,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:01:07" (1/1) ... [2024-12-02 14:01:07,799 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:01:08,086 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 14:01:08,087 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 14:01:08,088 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 14:01:08,089 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 14:01:08,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:01:08,145 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:01:08,186 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 14:01:08,187 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 14:01:08,188 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 14:01:08,189 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-02 14:01:08,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:01:08,250 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:01:08,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08 WrapperNode [2024-12-02 14:01:08,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:01:08,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:01:08,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:01:08,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:01:08,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,294 INFO L138 Inliner]: procedures = 275, calls = 101, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 317 [2024-12-02 14:01:08,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:01:08,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:01:08,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:01:08,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:01:08,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:01:08,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:01:08,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:01:08,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:01:08,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (1/1) ... [2024-12-02 14:01:08,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:01:08,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:01:08,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:01:08,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:01:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-02 14:01:08,401 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-02 14:01:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 14:01:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-02 14:01:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 14:01:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 14:01:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 14:01:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 14:01:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 14:01:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:01:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 14:01:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 14:01:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:01:08,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:01:08,403 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 14:01:08,526 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:01:08,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:01:09,035 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 14:01:09,035 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:01:09,058 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:01:09,059 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 14:01:09,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:01:09 BoogieIcfgContainer [2024-12-02 14:01:09,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:01:09,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:01:09,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:01:09,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:01:09,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:01:07" (1/3) ... [2024-12-02 14:01:09,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff809ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:01:09, skipping insertion in model container [2024-12-02 14:01:09,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:08" (2/3) ... [2024-12-02 14:01:09,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff809ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:01:09, skipping insertion in model container [2024-12-02 14:01:09,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:01:09" (3/3) ... [2024-12-02 14:01:09,068 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2024-12-02 14:01:09,082 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:01:09,083 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_24-evilcollapse_nr.i that has 2 procedures, 357 locations, 1 initial locations, 4 loop locations, and 16 error locations. [2024-12-02 14:01:09,083 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 14:01:09,187 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 14:01:09,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 439 transitions, 886 flow [2024-12-02 14:01:09,390 INFO L124 PetriNetUnfolderBase]: 17/437 cut-off events. [2024-12-02 14:01:09,392 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:01:09,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 437 events. 17/437 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 793 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 362. Up to 2 conditions per place. [2024-12-02 14:01:09,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 439 transitions, 886 flow [2024-12-02 14:01:09,406 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 427 places, 437 transitions, 880 flow [2024-12-02 14:01:09,414 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:01:09,424 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;@612fd725, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:01:09,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-12-02 14:01:09,444 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 14:01:09,444 INFO L124 PetriNetUnfolderBase]: 1/115 cut-off events. [2024-12-02 14:01:09,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:01:09,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:09,445 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] [2024-12-02 14:01:09,446 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:09,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:09,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1654976318, now seen corresponding path program 1 times [2024-12-02 14:01:09,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:09,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902260727] [2024-12-02 14:01:09,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:09,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:10,458 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 14:01:10,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:10,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902260727] [2024-12-02 14:01:10,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902260727] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:10,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:10,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:10,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519721246] [2024-12-02 14:01:10,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:10,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:10,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:10,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:10,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:11,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 439 [2024-12-02 14:01:11,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 437 transitions, 880 flow. Second operand has 6 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 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 14:01:11,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:11,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 439 [2024-12-02 14:01:11,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:11,636 INFO L124 PetriNetUnfolderBase]: 450/1903 cut-off events. [2024-12-02 14:01:11,636 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-12-02 14:01:11,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 1903 events. 450/1903 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11428 event pairs, 342 based on Foata normal form. 154/1845 useless extension candidates. Maximal degree in co-relation 2472. Up to 854 conditions per place. [2024-12-02 14:01:11,649 INFO L140 encePairwiseOnDemand]: 417/439 looper letters, 80 selfloop transitions, 10 changer transitions 2/425 dead transitions. [2024-12-02 14:01:11,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 425 transitions, 1036 flow [2024-12-02 14:01:11,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2124 transitions. [2024-12-02 14:01:11,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.806378132118451 [2024-12-02 14:01:11,670 INFO L175 Difference]: Start difference. First operand has 427 places, 437 transitions, 880 flow. Second operand 6 states and 2124 transitions. [2024-12-02 14:01:11,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 425 transitions, 1036 flow [2024-12-02 14:01:11,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 425 transitions, 1034 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:01:11,684 INFO L231 Difference]: Finished difference. Result has 428 places, 423 transitions, 870 flow [2024-12-02 14:01:11,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=870, PETRI_PLACES=428, PETRI_TRANSITIONS=423} [2024-12-02 14:01:11,690 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 1 predicate places. [2024-12-02 14:01:11,690 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 423 transitions, 870 flow [2024-12-02 14:01:11,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 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 14:01:11,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:11,692 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] [2024-12-02 14:01:11,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:01:11,692 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:11,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1584331494, now seen corresponding path program 1 times [2024-12-02 14:01:11,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:11,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561679372] [2024-12-02 14:01:11,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:11,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:12,246 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 14:01:12,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:12,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561679372] [2024-12-02 14:01:12,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561679372] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:12,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:12,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359738957] [2024-12-02 14:01:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:12,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:12,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:12,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:12,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:12,681 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 439 [2024-12-02 14:01:12,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 423 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 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 14:01:12,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:12,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 439 [2024-12-02 14:01:12,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:13,030 INFO L124 PetriNetUnfolderBase]: 450/1899 cut-off events. [2024-12-02 14:01:13,030 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:01:13,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2815 conditions, 1899 events. 450/1899 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11475 event pairs, 342 based on Foata normal form. 0/1691 useless extension candidates. Maximal degree in co-relation 2641. Up to 854 conditions per place. [2024-12-02 14:01:13,040 INFO L140 encePairwiseOnDemand]: 427/439 looper letters, 80 selfloop transitions, 10 changer transitions 0/421 dead transitions. [2024-12-02 14:01:13,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 421 transitions, 1046 flow [2024-12-02 14:01:13,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2114 transitions. [2024-12-02 14:01:13,045 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8025816249050873 [2024-12-02 14:01:13,045 INFO L175 Difference]: Start difference. First operand has 428 places, 423 transitions, 870 flow. Second operand 6 states and 2114 transitions. [2024-12-02 14:01:13,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 421 transitions, 1046 flow [2024-12-02 14:01:13,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 421 transitions, 1026 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:13,053 INFO L231 Difference]: Finished difference. Result has 424 places, 421 transitions, 866 flow [2024-12-02 14:01:13,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=866, PETRI_PLACES=424, PETRI_TRANSITIONS=421} [2024-12-02 14:01:13,054 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -3 predicate places. [2024-12-02 14:01:13,054 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 421 transitions, 866 flow [2024-12-02 14:01:13,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 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 14:01:13,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:13,056 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] [2024-12-02 14:01:13,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:01:13,056 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:13,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:13,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2008372271, now seen corresponding path program 1 times [2024-12-02 14:01:13,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:13,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274442934] [2024-12-02 14:01:13,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:13,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:13,145 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 14:01:13,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:13,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274442934] [2024-12-02 14:01:13,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274442934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:13,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:13,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:01:13,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60150875] [2024-12-02 14:01:13,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:13,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:01:13,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:13,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:01:13,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:01:13,164 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 439 [2024-12-02 14:01:13,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 421 transitions, 866 flow. Second operand has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 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 14:01:13,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:13,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 439 [2024-12-02 14:01:13,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:13,272 INFO L124 PetriNetUnfolderBase]: 30/723 cut-off events. [2024-12-02 14:01:13,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:01:13,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 723 events. 30/723 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2596 event pairs, 18 based on Foata normal form. 1/669 useless extension candidates. Maximal degree in co-relation 493. Up to 45 conditions per place. [2024-12-02 14:01:13,276 INFO L140 encePairwiseOnDemand]: 436/439 looper letters, 11 selfloop transitions, 2 changer transitions 0/422 dead transitions. [2024-12-02 14:01:13,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 422 transitions, 894 flow [2024-12-02 14:01:13,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:01:13,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:01:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1265 transitions. [2024-12-02 14:01:13,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9605163249810175 [2024-12-02 14:01:13,279 INFO L175 Difference]: Start difference. First operand has 424 places, 421 transitions, 866 flow. Second operand 3 states and 1265 transitions. [2024-12-02 14:01:13,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 422 transitions, 894 flow [2024-12-02 14:01:13,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 422 transitions, 874 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:13,288 INFO L231 Difference]: Finished difference. Result has 422 places, 422 transitions, 858 flow [2024-12-02 14:01:13,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=422, PETRI_TRANSITIONS=422} [2024-12-02 14:01:13,289 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -5 predicate places. [2024-12-02 14:01:13,289 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 422 transitions, 858 flow [2024-12-02 14:01:13,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 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 14:01:13,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:13,290 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] [2024-12-02 14:01:13,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:01:13,291 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:13,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash 63334530, now seen corresponding path program 1 times [2024-12-02 14:01:13,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:13,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136743386] [2024-12-02 14:01:13,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:13,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:13,921 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 14:01:13,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:13,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136743386] [2024-12-02 14:01:13,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136743386] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:13,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:13,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:13,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247776069] [2024-12-02 14:01:13,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:13,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:13,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:13,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:13,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:14,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 439 [2024-12-02 14:01:14,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 422 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 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 14:01:14,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:14,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 439 [2024-12-02 14:01:14,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:14,595 INFO L124 PetriNetUnfolderBase]: 451/2021 cut-off events. [2024-12-02 14:01:14,595 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 14:01:14,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 2021 events. 451/2021 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12025 event pairs, 342 based on Foata normal form. 0/1809 useless extension candidates. Maximal degree in co-relation 2721. Up to 902 conditions per place. [2024-12-02 14:01:14,601 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 87 selfloop transitions, 5 changer transitions 0/421 dead transitions. [2024-12-02 14:01:14,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 421 transitions, 1040 flow [2024-12-02 14:01:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:14,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2109 transitions. [2024-12-02 14:01:14,605 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8006833712984055 [2024-12-02 14:01:14,606 INFO L175 Difference]: Start difference. First operand has 422 places, 422 transitions, 858 flow. Second operand 6 states and 2109 transitions. [2024-12-02 14:01:14,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 421 transitions, 1040 flow [2024-12-02 14:01:14,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 421 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 14:01:14,610 INFO L231 Difference]: Finished difference. Result has 425 places, 421 transitions, 864 flow [2024-12-02 14:01:14,611 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=864, PETRI_PLACES=425, PETRI_TRANSITIONS=421} [2024-12-02 14:01:14,611 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -2 predicate places. [2024-12-02 14:01:14,611 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 421 transitions, 864 flow [2024-12-02 14:01:14,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 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 14:01:14,612 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:14,612 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] [2024-12-02 14:01:14,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:01:14,612 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:14,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:14,613 INFO L85 PathProgramCache]: Analyzing trace with hash 20038742, now seen corresponding path program 1 times [2024-12-02 14:01:14,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:14,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173251547] [2024-12-02 14:01:14,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:14,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:14,673 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 14:01:14,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:14,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173251547] [2024-12-02 14:01:14,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173251547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:14,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:14,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:01:14,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985892519] [2024-12-02 14:01:14,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:14,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:01:14,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:14,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:01:14,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:01:14,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 439 [2024-12-02 14:01:14,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 421 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 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 14:01:14,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:14,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 439 [2024-12-02 14:01:14,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:14,780 INFO L124 PetriNetUnfolderBase]: 30/909 cut-off events. [2024-12-02 14:01:14,780 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:01:14,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 995 conditions, 909 events. 30/909 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2602 event pairs, 18 based on Foata normal form. 2/850 useless extension candidates. Maximal degree in co-relation 571. Up to 49 conditions per place. [2024-12-02 14:01:14,783 INFO L140 encePairwiseOnDemand]: 436/439 looper letters, 11 selfloop transitions, 2 changer transitions 0/422 dead transitions. [2024-12-02 14:01:14,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 422 transitions, 892 flow [2024-12-02 14:01:14,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:01:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:01:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1265 transitions. [2024-12-02 14:01:14,786 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9605163249810175 [2024-12-02 14:01:14,787 INFO L175 Difference]: Start difference. First operand has 425 places, 421 transitions, 864 flow. Second operand 3 states and 1265 transitions. [2024-12-02 14:01:14,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 422 transitions, 892 flow [2024-12-02 14:01:14,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 422 transitions, 882 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:14,792 INFO L231 Difference]: Finished difference. Result has 423 places, 422 transitions, 866 flow [2024-12-02 14:01:14,792 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=423, PETRI_TRANSITIONS=422} [2024-12-02 14:01:14,793 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -4 predicate places. [2024-12-02 14:01:14,793 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 422 transitions, 866 flow [2024-12-02 14:01:14,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 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 14:01:14,794 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:14,794 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] [2024-12-02 14:01:14,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:01:14,794 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:14,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1364197521, now seen corresponding path program 1 times [2024-12-02 14:01:14,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:14,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109484771] [2024-12-02 14:01:14,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:14,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:15,438 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 14:01:15,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:15,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109484771] [2024-12-02 14:01:15,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109484771] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:15,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:15,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:15,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399561749] [2024-12-02 14:01:15,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:15,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:15,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:15,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:15,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:15,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 439 [2024-12-02 14:01:15,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 422 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 373.5) internal successors, (2241), 6 states have internal predecessors, (2241), 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 14:01:15,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:15,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 439 [2024-12-02 14:01:15,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:16,217 INFO L124 PetriNetUnfolderBase]: 76/1221 cut-off events. [2024-12-02 14:01:16,217 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 14:01:16,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1221 events. 76/1221 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4693 event pairs, 42 based on Foata normal form. 0/1125 useless extension candidates. Maximal degree in co-relation 1011. Up to 263 conditions per place. [2024-12-02 14:01:16,223 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 54 selfloop transitions, 5 changer transitions 0/421 dead transitions. [2024-12-02 14:01:16,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 421 transitions, 982 flow [2024-12-02 14:01:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:16,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2274 transitions. [2024-12-02 14:01:16,228 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8633257403189066 [2024-12-02 14:01:16,228 INFO L175 Difference]: Start difference. First operand has 423 places, 422 transitions, 866 flow. Second operand 6 states and 2274 transitions. [2024-12-02 14:01:16,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 421 transitions, 982 flow [2024-12-02 14:01:16,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 421 transitions, 980 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 14:01:16,235 INFO L231 Difference]: Finished difference. Result has 426 places, 421 transitions, 872 flow [2024-12-02 14:01:16,236 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=426, PETRI_TRANSITIONS=421} [2024-12-02 14:01:16,236 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -1 predicate places. [2024-12-02 14:01:16,237 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 421 transitions, 872 flow [2024-12-02 14:01:16,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 373.5) internal successors, (2241), 6 states have internal predecessors, (2241), 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 14:01:16,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:16,238 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] [2024-12-02 14:01:16,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:01:16,238 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:16,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:16,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1543390404, now seen corresponding path program 1 times [2024-12-02 14:01:16,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:16,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572571039] [2024-12-02 14:01:16,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:16,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:16,633 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 14:01:16,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:16,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572571039] [2024-12-02 14:01:16,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572571039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:16,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:16,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:16,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387775143] [2024-12-02 14:01:16,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:16,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:16,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:16,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:16,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:16,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 439 [2024-12-02 14:01:16,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 421 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 341.3333333333333) internal successors, (2048), 6 states have internal predecessors, (2048), 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 14:01:16,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:16,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 439 [2024-12-02 14:01:16,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:17,268 INFO L124 PetriNetUnfolderBase]: 451/2201 cut-off events. [2024-12-02 14:01:17,268 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 14:01:17,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3265 conditions, 2201 events. 451/2201 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12254 event pairs, 342 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 2764. Up to 968 conditions per place. [2024-12-02 14:01:17,275 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 87 selfloop transitions, 5 changer transitions 0/420 dead transitions. [2024-12-02 14:01:17,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 420 transitions, 1054 flow [2024-12-02 14:01:17,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:17,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2109 transitions. [2024-12-02 14:01:17,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8006833712984055 [2024-12-02 14:01:17,279 INFO L175 Difference]: Start difference. First operand has 426 places, 421 transitions, 872 flow. Second operand 6 states and 2109 transitions. [2024-12-02 14:01:17,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 420 transitions, 1054 flow [2024-12-02 14:01:17,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 420 transitions, 1044 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:17,284 INFO L231 Difference]: Finished difference. Result has 425 places, 420 transitions, 870 flow [2024-12-02 14:01:17,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=870, PETRI_PLACES=425, PETRI_TRANSITIONS=420} [2024-12-02 14:01:17,285 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -2 predicate places. [2024-12-02 14:01:17,285 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 420 transitions, 870 flow [2024-12-02 14:01:17,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.3333333333333) internal successors, (2048), 6 states have internal predecessors, (2048), 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 14:01:17,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:17,286 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] [2024-12-02 14:01:17,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:01:17,287 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:17,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:17,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1629415694, now seen corresponding path program 1 times [2024-12-02 14:01:17,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:17,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63814191] [2024-12-02 14:01:17,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:17,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:17,695 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 14:01:17,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:17,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63814191] [2024-12-02 14:01:17,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63814191] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:17,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:17,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:17,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279900612] [2024-12-02 14:01:17,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:17,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:17,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:17,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:17,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:18,122 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 439 [2024-12-02 14:01:18,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 420 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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 14:01:18,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:18,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 439 [2024-12-02 14:01:18,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:18,572 INFO L124 PetriNetUnfolderBase]: 451/2197 cut-off events. [2024-12-02 14:01:18,573 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 14:01:18,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3245 conditions, 2197 events. 451/2197 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12283 event pairs, 342 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 2780. Up to 952 conditions per place. [2024-12-02 14:01:18,584 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 83 selfloop transitions, 5 changer transitions 0/419 dead transitions. [2024-12-02 14:01:18,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 419 transitions, 1044 flow [2024-12-02 14:01:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:18,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2129 transitions. [2024-12-02 14:01:18,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8082763857251328 [2024-12-02 14:01:18,589 INFO L175 Difference]: Start difference. First operand has 425 places, 420 transitions, 870 flow. Second operand 6 states and 2129 transitions. [2024-12-02 14:01:18,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 419 transitions, 1044 flow [2024-12-02 14:01:18,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 419 transitions, 1034 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:18,596 INFO L231 Difference]: Finished difference. Result has 424 places, 419 transitions, 868 flow [2024-12-02 14:01:18,596 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=868, PETRI_PLACES=424, PETRI_TRANSITIONS=419} [2024-12-02 14:01:18,597 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -3 predicate places. [2024-12-02 14:01:18,597 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 419 transitions, 868 flow [2024-12-02 14:01:18,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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 14:01:18,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:18,598 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] [2024-12-02 14:01:18,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:01:18,599 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:18,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:18,600 INFO L85 PathProgramCache]: Analyzing trace with hash -105004380, now seen corresponding path program 1 times [2024-12-02 14:01:18,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:18,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207828119] [2024-12-02 14:01:18,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:18,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:19,197 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 14:01:19,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:19,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207828119] [2024-12-02 14:01:19,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207828119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:19,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:19,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:19,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482050335] [2024-12-02 14:01:19,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:19,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:19,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:19,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:19,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:19,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 439 [2024-12-02 14:01:19,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 419 transitions, 868 flow. Second operand has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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 14:01:19,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:19,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 439 [2024-12-02 14:01:19,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:19,790 INFO L124 PetriNetUnfolderBase]: 451/2193 cut-off events. [2024-12-02 14:01:19,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:01:19,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3241 conditions, 2193 events. 451/2193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12242 event pairs, 342 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 2795. Up to 952 conditions per place. [2024-12-02 14:01:19,796 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 83 selfloop transitions, 5 changer transitions 0/418 dead transitions. [2024-12-02 14:01:19,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 418 transitions, 1042 flow [2024-12-02 14:01:19,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2129 transitions. [2024-12-02 14:01:19,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8082763857251328 [2024-12-02 14:01:19,799 INFO L175 Difference]: Start difference. First operand has 424 places, 419 transitions, 868 flow. Second operand 6 states and 2129 transitions. [2024-12-02 14:01:19,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 418 transitions, 1042 flow [2024-12-02 14:01:19,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 418 transitions, 1032 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:19,805 INFO L231 Difference]: Finished difference. Result has 423 places, 418 transitions, 866 flow [2024-12-02 14:01:19,806 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=866, PETRI_PLACES=423, PETRI_TRANSITIONS=418} [2024-12-02 14:01:19,806 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -4 predicate places. [2024-12-02 14:01:19,806 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 418 transitions, 866 flow [2024-12-02 14:01:19,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 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 14:01:19,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:19,807 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] [2024-12-02 14:01:19,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:01:19,808 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:19,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:19,808 INFO L85 PathProgramCache]: Analyzing trace with hash -859254472, now seen corresponding path program 1 times [2024-12-02 14:01:19,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:19,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415228125] [2024-12-02 14:01:19,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:19,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:20,325 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 14:01:20,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:20,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415228125] [2024-12-02 14:01:20,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415228125] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:20,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:20,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:20,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560522542] [2024-12-02 14:01:20,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:20,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:20,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:20,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:20,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:20,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 439 [2024-12-02 14:01:20,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 418 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 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 14:01:20,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:20,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 439 [2024-12-02 14:01:20,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:21,014 INFO L124 PetriNetUnfolderBase]: 451/2189 cut-off events. [2024-12-02 14:01:21,014 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-02 14:01:21,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3257 conditions, 2189 events. 451/2189 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12252 event pairs, 342 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 2808. Up to 972 conditions per place. [2024-12-02 14:01:21,020 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 88 selfloop transitions, 5 changer transitions 0/417 dead transitions. [2024-12-02 14:01:21,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 417 transitions, 1050 flow [2024-12-02 14:01:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:21,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2104 transitions. [2024-12-02 14:01:21,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7987851176917237 [2024-12-02 14:01:21,023 INFO L175 Difference]: Start difference. First operand has 423 places, 418 transitions, 866 flow. Second operand 6 states and 2104 transitions. [2024-12-02 14:01:21,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 417 transitions, 1050 flow [2024-12-02 14:01:21,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 417 transitions, 1040 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:21,028 INFO L231 Difference]: Finished difference. Result has 422 places, 417 transitions, 864 flow [2024-12-02 14:01:21,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=864, PETRI_PLACES=422, PETRI_TRANSITIONS=417} [2024-12-02 14:01:21,029 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, -5 predicate places. [2024-12-02 14:01:21,029 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 417 transitions, 864 flow [2024-12-02 14:01:21,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 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 14:01:21,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:21,030 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, 1, 1, 1, 1] [2024-12-02 14:01:21,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:01:21,030 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:21,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash 534256218, now seen corresponding path program 1 times [2024-12-02 14:01:21,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:21,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078007851] [2024-12-02 14:01:21,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:21,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 14:01:21,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:21,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078007851] [2024-12-02 14:01:21,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078007851] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:01:21,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063964890] [2024-12-02 14:01:21,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:21,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:01:21,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:01:21,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:01:21,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:01:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:21,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 14:01:21,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:01:21,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 14:01:21,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:01:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 14:01:21,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063964890] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:01:21,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:01:21,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 14:01:21,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888753386] [2024-12-02 14:01:21,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:01:21,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 14:01:21,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:21,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 14:01:21,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-02 14:01:21,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 439 [2024-12-02 14:01:21,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 417 transitions, 864 flow. Second operand has 10 states, 10 states have (on average 415.8) internal successors, (4158), 10 states have internal predecessors, (4158), 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 14:01:21,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:21,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 439 [2024-12-02 14:01:21,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:21,989 INFO L124 PetriNetUnfolderBase]: 30/1073 cut-off events. [2024-12-02 14:01:21,989 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 14:01:21,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1073 events. 30/1073 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2012 event pairs, 18 based on Foata normal form. 4/1036 useless extension candidates. Maximal degree in co-relation 564. Up to 49 conditions per place. [2024-12-02 14:01:21,991 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 15 selfloop transitions, 9 changer transitions 0/425 dead transitions. [2024-12-02 14:01:21,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 425 transitions, 930 flow [2024-12-02 14:01:21,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 14:01:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 14:01:21,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3752 transitions. [2024-12-02 14:01:21,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9496330043027081 [2024-12-02 14:01:21,994 INFO L175 Difference]: Start difference. First operand has 422 places, 417 transitions, 864 flow. Second operand 9 states and 3752 transitions. [2024-12-02 14:01:21,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 425 transitions, 930 flow [2024-12-02 14:01:21,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 920 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:21,998 INFO L231 Difference]: Finished difference. Result has 428 places, 423 transitions, 904 flow [2024-12-02 14:01:21,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=904, PETRI_PLACES=428, PETRI_TRANSITIONS=423} [2024-12-02 14:01:21,998 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 1 predicate places. [2024-12-02 14:01:21,998 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 423 transitions, 904 flow [2024-12-02 14:01:21,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 415.8) internal successors, (4158), 10 states have internal predecessors, (4158), 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 14:01:21,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:22,000 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] [2024-12-02 14:01:22,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:01:22,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 14:01:22,200 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:22,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:22,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1128411026, now seen corresponding path program 2 times [2024-12-02 14:01:22,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:22,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471182629] [2024-12-02 14:01:22,202 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:01:22,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:22,273 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 14:01:22,273 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:01:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-12-02 14:01:22,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:22,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471182629] [2024-12-02 14:01:22,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471182629] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:22,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:22,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:22,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708652876] [2024-12-02 14:01:22,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:22,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:22,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:22,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:22,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:23,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 439 [2024-12-02 14:01:23,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 423 transitions, 904 flow. Second operand has 6 states, 6 states have (on average 376.3333333333333) internal successors, (2258), 6 states have internal predecessors, (2258), 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 14:01:23,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:23,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 439 [2024-12-02 14:01:23,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:23,729 INFO L124 PetriNetUnfolderBase]: 76/1388 cut-off events. [2024-12-02 14:01:23,729 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-12-02 14:01:23,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 1388 events. 76/1388 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4024 event pairs, 42 based on Foata normal form. 0/1305 useless extension candidates. Maximal degree in co-relation 1133. Up to 307 conditions per place. [2024-12-02 14:01:23,732 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 54 selfloop transitions, 5 changer transitions 0/422 dead transitions. [2024-12-02 14:01:23,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 422 transitions, 1020 flow [2024-12-02 14:01:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2274 transitions. [2024-12-02 14:01:23,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8633257403189066 [2024-12-02 14:01:23,735 INFO L175 Difference]: Start difference. First operand has 428 places, 423 transitions, 904 flow. Second operand 6 states and 2274 transitions. [2024-12-02 14:01:23,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 422 transitions, 1020 flow [2024-12-02 14:01:23,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 422 transitions, 1014 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-02 14:01:23,739 INFO L231 Difference]: Finished difference. Result has 431 places, 422 transitions, 906 flow [2024-12-02 14:01:23,740 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=906, PETRI_PLACES=431, PETRI_TRANSITIONS=422} [2024-12-02 14:01:23,740 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 4 predicate places. [2024-12-02 14:01:23,740 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 422 transitions, 906 flow [2024-12-02 14:01:23,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.3333333333333) internal successors, (2258), 6 states have internal predecessors, (2258), 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 14:01:23,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:23,741 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] [2024-12-02 14:01:23,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:01:23,741 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:23,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:23,742 INFO L85 PathProgramCache]: Analyzing trace with hash -308753868, now seen corresponding path program 1 times [2024-12-02 14:01:23,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:23,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094374286] [2024-12-02 14:01:23,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:23,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:24,131 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 14:01:24,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:24,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094374286] [2024-12-02 14:01:24,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094374286] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:01:24,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577424082] [2024-12-02 14:01:24,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:24,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:01:24,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:01:24,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:01:24,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:01:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:24,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 14:01:24,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:01:24,804 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 14:01:24,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:01:25,099 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 14:01:25,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577424082] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:01:25,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:01:25,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-12-02 14:01:25,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109912015] [2024-12-02 14:01:25,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:01:25,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 14:01:25,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:25,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 14:01:25,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-12-02 14:01:25,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 439 [2024-12-02 14:01:25,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 422 transitions, 906 flow. Second operand has 19 states, 19 states have (on average 410.5263157894737) internal successors, (7800), 19 states have internal predecessors, (7800), 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 14:01:25,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:25,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 439 [2024-12-02 14:01:25,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:26,355 INFO L124 PetriNetUnfolderBase]: 31/2452 cut-off events. [2024-12-02 14:01:26,355 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-12-02 14:01:26,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2763 conditions, 2452 events. 31/2452 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2004 event pairs, 18 based on Foata normal form. 13/2425 useless extension candidates. Maximal degree in co-relation 2363. Up to 51 conditions per place. [2024-12-02 14:01:26,359 INFO L140 encePairwiseOnDemand]: 428/439 looper letters, 47 selfloop transitions, 68 changer transitions 0/508 dead transitions. [2024-12-02 14:01:26,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 508 transitions, 1546 flow [2024-12-02 14:01:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-12-02 14:01:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-12-02 14:01:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 25832 transitions. [2024-12-02 14:01:26,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9340130889105832 [2024-12-02 14:01:26,373 INFO L175 Difference]: Start difference. First operand has 431 places, 422 transitions, 906 flow. Second operand 63 states and 25832 transitions. [2024-12-02 14:01:26,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 508 transitions, 1546 flow [2024-12-02 14:01:26,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 508 transitions, 1536 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:26,378 INFO L231 Difference]: Finished difference. Result has 504 places, 484 transitions, 1416 flow [2024-12-02 14:01:26,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1416, PETRI_PLACES=504, PETRI_TRANSITIONS=484} [2024-12-02 14:01:26,379 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 77 predicate places. [2024-12-02 14:01:26,379 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 484 transitions, 1416 flow [2024-12-02 14:01:26,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 410.5263157894737) internal successors, (7800), 19 states have internal predecessors, (7800), 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 14:01:26,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:26,381 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] [2024-12-02 14:01:26,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:01:26,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 14:01:26,582 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:26,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:26,585 INFO L85 PathProgramCache]: Analyzing trace with hash 2086666737, now seen corresponding path program 2 times [2024-12-02 14:01:26,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:26,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694316627] [2024-12-02 14:01:26,585 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:01:26,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:26,840 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 14:01:26,840 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:01:27,046 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 14:01:27,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:27,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694316627] [2024-12-02 14:01:27,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694316627] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:27,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:27,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:27,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690630071] [2024-12-02 14:01:27,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:27,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:27,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:27,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:27,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:27,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 439 [2024-12-02 14:01:27,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 484 transitions, 1416 flow. Second operand has 6 states, 6 states have (on average 376.3333333333333) internal successors, (2258), 6 states have internal predecessors, (2258), 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 14:01:27,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:27,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 439 [2024-12-02 14:01:27,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:28,817 INFO L124 PetriNetUnfolderBase]: 77/2767 cut-off events. [2024-12-02 14:01:28,817 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2024-12-02 14:01:28,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3861 conditions, 2767 events. 77/2767 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4007 event pairs, 42 based on Foata normal form. 0/2685 useless extension candidates. Maximal degree in co-relation 1813. Up to 735 conditions per place. [2024-12-02 14:01:28,821 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 54 selfloop transitions, 5 changer transitions 0/483 dead transitions. [2024-12-02 14:01:28,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 483 transitions, 1532 flow [2024-12-02 14:01:28,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2274 transitions. [2024-12-02 14:01:28,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8633257403189066 [2024-12-02 14:01:28,823 INFO L175 Difference]: Start difference. First operand has 504 places, 484 transitions, 1416 flow. Second operand 6 states and 2274 transitions. [2024-12-02 14:01:28,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 483 transitions, 1532 flow [2024-12-02 14:01:28,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 483 transitions, 1456 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-12-02 14:01:28,830 INFO L231 Difference]: Finished difference. Result has 501 places, 483 transitions, 1348 flow [2024-12-02 14:01:28,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=1338, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1348, PETRI_PLACES=501, PETRI_TRANSITIONS=483} [2024-12-02 14:01:28,831 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 74 predicate places. [2024-12-02 14:01:28,831 INFO L471 AbstractCegarLoop]: Abstraction has has 501 places, 483 transitions, 1348 flow [2024-12-02 14:01:28,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.3333333333333) internal successors, (2258), 6 states have internal predecessors, (2258), 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 14:01:28,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:28,833 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] [2024-12-02 14:01:28,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:01:28,833 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:28,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:28,835 INFO L85 PathProgramCache]: Analyzing trace with hash -150007047, now seen corresponding path program 1 times [2024-12-02 14:01:28,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:28,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425216715] [2024-12-02 14:01:28,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:28,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 12463 backedges. 6557 proven. 2779 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2024-12-02 14:01:31,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:31,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425216715] [2024-12-02 14:01:31,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425216715] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:01:31,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617279662] [2024-12-02 14:01:31,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:31,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:01:31,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:01:31,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:01:31,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:01:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:32,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 5698 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 14:01:32,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:01:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12463 backedges. 6557 proven. 2779 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2024-12-02 14:01:33,516 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:01:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12463 backedges. 6557 proven. 2779 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2024-12-02 14:01:34,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617279662] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:01:34,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:01:34,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-12-02 14:01:34,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364140779] [2024-12-02 14:01:34,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:01:34,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 14:01:34,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:34,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 14:01:34,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 14:01:34,254 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 439 [2024-12-02 14:01:34,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 483 transitions, 1348 flow. Second operand has 34 states, 34 states have (on average 416.1764705882353) internal successors, (14150), 34 states have internal predecessors, (14150), 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 14:01:34,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:34,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 439 [2024-12-02 14:01:34,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:36,520 INFO L124 PetriNetUnfolderBase]: 31/4611 cut-off events. [2024-12-02 14:01:36,520 INFO L125 PetriNetUnfolderBase]: For 3207/3207 co-relation queries the response was YES. [2024-12-02 14:01:36,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5422 conditions, 4611 events. 31/4611 cut-off events. For 3207/3207 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1990 event pairs, 18 based on Foata normal form. 24/4596 useless extension candidates. Maximal degree in co-relation 5381. Up to 78 conditions per place. [2024-12-02 14:01:36,526 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 47 selfloop transitions, 135 changer transitions 0/584 dead transitions. [2024-12-02 14:01:36,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 584 transitions, 2476 flow [2024-12-02 14:01:36,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 14:01:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-12-02 14:01:36,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 18710 transitions. [2024-12-02 14:01:36,537 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.947101999493799 [2024-12-02 14:01:36,537 INFO L175 Difference]: Start difference. First operand has 501 places, 483 transitions, 1348 flow. Second operand 45 states and 18710 transitions. [2024-12-02 14:01:36,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 584 transitions, 2476 flow [2024-12-02 14:01:36,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 584 transitions, 2466 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 14:01:36,546 INFO L231 Difference]: Finished difference. Result has 549 places, 558 transitions, 2212 flow [2024-12-02 14:01:36,547 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=1338, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2212, PETRI_PLACES=549, PETRI_TRANSITIONS=558} [2024-12-02 14:01:36,547 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 122 predicate places. [2024-12-02 14:01:36,547 INFO L471 AbstractCegarLoop]: Abstraction has has 549 places, 558 transitions, 2212 flow [2024-12-02 14:01:36,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 416.1764705882353) internal successors, (14150), 34 states have internal predecessors, (14150), 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 14:01:36,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:36,551 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] [2024-12-02 14:01:36,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:01:36,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 14:01:36,751 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:36,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash -266391815, now seen corresponding path program 2 times [2024-12-02 14:01:36,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:36,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045711723] [2024-12-02 14:01:36,759 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:01:36,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:37,153 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 14:01:37,153 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:01:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 58351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58351 trivial. 0 not checked. [2024-12-02 14:01:37,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:37,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045711723] [2024-12-02 14:01:37,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045711723] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:01:37,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:01:37,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:01:37,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397230089] [2024-12-02 14:01:37,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:01:37,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:01:37,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:01:37,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:01:37,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:01:38,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 439 [2024-12-02 14:01:38,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 558 transitions, 2212 flow. Second operand has 6 states, 6 states have (on average 377.5) internal successors, (2265), 6 states have internal predecessors, (2265), 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 14:01:38,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:01:38,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 439 [2024-12-02 14:01:38,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:01:41,577 INFO L124 PetriNetUnfolderBase]: 201/5512 cut-off events. [2024-12-02 14:01:41,577 INFO L125 PetriNetUnfolderBase]: For 1218/1218 co-relation queries the response was YES. [2024-12-02 14:01:41,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7962 conditions, 5512 events. 201/5512 cut-off events. For 1218/1218 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8935 event pairs, 54 based on Foata normal form. 0/5369 useless extension candidates. Maximal degree in co-relation 4118. Up to 1548 conditions per place. [2024-12-02 14:01:41,585 INFO L140 encePairwiseOnDemand]: 427/439 looper letters, 71 selfloop transitions, 23 changer transitions 0/593 dead transitions. [2024-12-02 14:01:41,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 593 transitions, 2478 flow [2024-12-02 14:01:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:01:41,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:01:41,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2315 transitions. [2024-12-02 14:01:41,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8788914198936978 [2024-12-02 14:01:41,588 INFO L175 Difference]: Start difference. First operand has 549 places, 558 transitions, 2212 flow. Second operand 6 states and 2315 transitions. [2024-12-02 14:01:41,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 593 transitions, 2478 flow [2024-12-02 14:01:41,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 593 transitions, 2370 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-12-02 14:01:41,602 INFO L231 Difference]: Finished difference. Result has 541 places, 580 transitions, 2262 flow [2024-12-02 14:01:41,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=2104, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2262, PETRI_PLACES=541, PETRI_TRANSITIONS=580} [2024-12-02 14:01:41,602 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 114 predicate places. [2024-12-02 14:01:41,603 INFO L471 AbstractCegarLoop]: Abstraction has has 541 places, 580 transitions, 2262 flow [2024-12-02 14:01:41,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 377.5) internal successors, (2265), 6 states have internal predecessors, (2265), 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 14:01:41,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:01:41,604 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] [2024-12-02 14:01:41,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:01:41,604 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:01:41,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:01:41,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1389626985, now seen corresponding path program 1 times [2024-12-02 14:01:41,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:01:41,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576787827] [2024-12-02 14:01:41,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:41,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:01:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 58351 backedges. 29861 proven. 13875 refuted. 0 times theorem prover too weak. 14615 trivial. 0 not checked. [2024-12-02 14:01:54,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:01:54,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576787827] [2024-12-02 14:01:54,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576787827] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:01:54,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349806981] [2024-12-02 14:01:54,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:01:54,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:01:54,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:01:54,580 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:01:54,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:01:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:01:57,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 11604 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 14:01:57,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:01:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 58351 backedges. 29861 proven. 13875 refuted. 0 times theorem prover too weak. 14615 trivial. 0 not checked. [2024-12-02 14:01:58,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:02:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 58351 backedges. 29861 proven. 13875 refuted. 0 times theorem prover too weak. 14615 trivial. 0 not checked. [2024-12-02 14:02:00,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349806981] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:02:00,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:02:00,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-12-02 14:02:00,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032550202] [2024-12-02 14:02:00,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:02:00,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-12-02 14:02:00,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:02:00,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-12-02 14:02:00,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-12-02 14:02:00,104 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 439 [2024-12-02 14:02:00,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 580 transitions, 2262 flow. Second operand has 63 states, 63 states have (on average 416.14285714285717) internal successors, (26217), 63 states have internal predecessors, (26217), 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 14:02:00,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:02:00,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 439 [2024-12-02 14:02:00,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:02:09,316 INFO L124 PetriNetUnfolderBase]: 187/9720 cut-off events. [2024-12-02 14:02:09,316 INFO L125 PetriNetUnfolderBase]: For 13429/13433 co-relation queries the response was YES. [2024-12-02 14:02:09,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12063 conditions, 9720 events. 187/9720 cut-off events. For 13429/13433 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9633 event pairs, 55 based on Foata normal form. 45/9595 useless extension candidates. Maximal degree in co-relation 10722. Up to 168 conditions per place. [2024-12-02 14:02:09,340 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 92 selfloop transitions, 270 changer transitions 0/786 dead transitions. [2024-12-02 14:02:09,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 630 places, 786 transitions, 5172 flow [2024-12-02 14:02:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-12-02 14:02:09,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-12-02 14:02:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 37407 transitions. [2024-12-02 14:02:09,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9467729688686408 [2024-12-02 14:02:09,376 INFO L175 Difference]: Start difference. First operand has 541 places, 580 transitions, 2262 flow. Second operand 90 states and 37407 transitions. [2024-12-02 14:02:09,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 630 places, 786 transitions, 5172 flow [2024-12-02 14:02:09,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 786 transitions, 5172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 14:02:09,416 INFO L231 Difference]: Finished difference. Result has 646 places, 718 transitions, 4254 flow [2024-12-02 14:02:09,417 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=2262, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4254, PETRI_PLACES=646, PETRI_TRANSITIONS=718} [2024-12-02 14:02:09,417 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 219 predicate places. [2024-12-02 14:02:09,417 INFO L471 AbstractCegarLoop]: Abstraction has has 646 places, 718 transitions, 4254 flow [2024-12-02 14:02:09,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 416.14285714285717) internal successors, (26217), 63 states have internal predecessors, (26217), 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 14:02:09,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:02:09,424 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] [2024-12-02 14:02:09,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 14:02:09,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 14:02:09,625 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:02:09,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:09,636 INFO L85 PathProgramCache]: Analyzing trace with hash -900096151, now seen corresponding path program 2 times [2024-12-02 14:02:09,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:02:09,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573483299] [2024-12-02 14:02:09,637 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:02:09,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:02:10,494 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 14:02:10,494 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:02:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 235471 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235471 trivial. 0 not checked. [2024-12-02 14:02:10,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:02:10,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573483299] [2024-12-02 14:02:10,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573483299] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:10,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:02:10,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:02:10,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40206032] [2024-12-02 14:02:10,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:10,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:02:10,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:02:10,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:02:10,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:02:11,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 439 [2024-12-02 14:02:11,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 718 transitions, 4254 flow. Second operand has 6 states, 6 states have (on average 377.6666666666667) internal successors, (2266), 6 states have internal predecessors, (2266), 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 14:02:11,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:02:11,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 439 [2024-12-02 14:02:11,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:02:23,083 INFO L124 PetriNetUnfolderBase]: 312/10276 cut-off events. [2024-12-02 14:02:23,083 INFO L125 PetriNetUnfolderBase]: For 3804/3837 co-relation queries the response was YES. [2024-12-02 14:02:23,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15664 conditions, 10276 events. 312/10276 cut-off events. For 3804/3837 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15759 event pairs, 61 based on Foata normal form. 8/10069 useless extension candidates. Maximal degree in co-relation 13453. Up to 2941 conditions per place. [2024-12-02 14:02:23,106 INFO L140 encePairwiseOnDemand]: 427/439 looper letters, 84 selfloop transitions, 31 changer transitions 0/757 dead transitions. [2024-12-02 14:02:23,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 757 transitions, 4604 flow [2024-12-02 14:02:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:02:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:02:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2311 transitions. [2024-12-02 14:02:23,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8773728170083523 [2024-12-02 14:02:23,109 INFO L175 Difference]: Start difference. First operand has 646 places, 718 transitions, 4254 flow. Second operand 6 states and 2311 transitions. [2024-12-02 14:02:23,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 651 places, 757 transitions, 4604 flow [2024-12-02 14:02:23,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 757 transitions, 4250 flow, removed 51 selfloop flow, removed 42 redundant places. [2024-12-02 14:02:23,141 INFO L231 Difference]: Finished difference. Result has 614 places, 748 transitions, 4158 flow [2024-12-02 14:02:23,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=3900, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=702, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4158, PETRI_PLACES=614, PETRI_TRANSITIONS=748} [2024-12-02 14:02:23,141 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 187 predicate places. [2024-12-02 14:02:23,141 INFO L471 AbstractCegarLoop]: Abstraction has has 614 places, 748 transitions, 4158 flow [2024-12-02 14:02:23,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 377.6666666666667) internal successors, (2266), 6 states have internal predecessors, (2266), 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 14:02:23,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:02:23,143 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] [2024-12-02 14:02:23,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:02:23,143 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:02:23,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:23,157 INFO L85 PathProgramCache]: Analyzing trace with hash 37292002, now seen corresponding path program 1 times [2024-12-02 14:02:23,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:02:23,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624710439] [2024-12-02 14:02:23,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:23,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:02:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:39,338 INFO L134 CoverageAnalysis]: Checked inductivity of 235471 backedges. 420 proven. 118891 refuted. 0 times theorem prover too weak. 116160 trivial. 0 not checked. [2024-12-02 14:02:39,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:02:39,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624710439] [2024-12-02 14:02:39,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624710439] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:02:39,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755464919] [2024-12-02 14:02:39,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:39,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:02:39,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:02:39,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:02:39,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:02:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:44,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 22662 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 14:02:44,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:02:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 235471 backedges. 420 proven. 118891 refuted. 0 times theorem prover too weak. 116160 trivial. 0 not checked. [2024-12-02 14:02:49,061 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:02:54,229 INFO L134 CoverageAnalysis]: Checked inductivity of 235471 backedges. 420 proven. 118891 refuted. 0 times theorem prover too weak. 116160 trivial. 0 not checked. [2024-12-02 14:02:54,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755464919] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:02:54,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:02:54,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-12-02 14:02:54,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880877756] [2024-12-02 14:02:54,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:02:54,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:02:54,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:02:54,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:02:54,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:02:54,283 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 439 [2024-12-02 14:02:54,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 748 transitions, 4158 flow. Second operand has 14 states, 14 states have (on average 416.0) internal successors, (5824), 14 states have internal predecessors, (5824), 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 14:02:54,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:02:54,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 439 [2024-12-02 14:02:54,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:03:15,642 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([908] L1046-4-->L1051-2: Formula: (and (= (store |v_#pthreadsMutex_12| |v_~#c~0.base_102| (store (select |v_#pthreadsMutex_12| |v_~#c~0.base_102|) (+ |v_~#c~0.offset_102| (* |v_fThread1of1ForFork1_~j~0#1_29| 24) 80) 0)) |v_#pthreadsMutex_11|) (= |v_fThread1of1ForFork1_#t~ret22#1_1| 0)) InVars {~#c~0.base=|v_~#c~0.base_102|, fThread1of1ForFork1_~j~0#1=|v_fThread1of1ForFork1_~j~0#1_29|, #pthreadsMutex=|v_#pthreadsMutex_12|, ~#c~0.offset=|v_~#c~0.offset_102|} OutVars{~#c~0.base=|v_~#c~0.base_102|, fThread1of1ForFork1_~j~0#1=|v_fThread1of1ForFork1_~j~0#1_29|, #pthreadsMutex=|v_#pthreadsMutex_11|, ~#c~0.offset=|v_~#c~0.offset_102|, fThread1of1ForFork1_#t~ret22#1=|v_fThread1of1ForFork1_#t~ret22#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, fThread1of1ForFork1_#t~ret22#1][651], [Black: 13307#(= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0), 60#L1051-2true, 30941#true, Black: 13309#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 13308#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), 134#ULTIMATE.startFINALtrue, 428#true, 383#L1051-2true, Black: 446#(= |ULTIMATE.start_main_~i~0#1| 0), 4452#true, 1871#true, Black: 1260#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 492#(<= |ULTIMATE.start_main_~j~1#1| 1), Black: 456#(= |ULTIMATE.start_main_~j~1#1| 0), Black: 26965#(< |ULTIMATE.start_main_~j~1#1| 27), 13305#true, Black: 4351#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 27)), Black: 13348#(<= |ULTIMATE.start_main_~j~1#1| 15), Black: 27509#(< |ULTIMATE.start_main_~j~1#1| 25), Black: 3199#(< |ULTIMATE.start_main_~j~1#1| 29), Black: 27781#(< |ULTIMATE.start_main_~j~1#1| 24), Black: 4345#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 3)), Black: 27237#(< |ULTIMATE.start_main_~j~1#1| 26), Black: 3471#(< |ULTIMATE.start_main_~j~1#1| 28), Black: 28053#(< |ULTIMATE.start_main_~j~1#1| 23), 488#true, Black: 4393#(and (<= |ULTIMATE.start_main_~j~1#1| 27) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 26410#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 4405#(and (<= |ULTIMATE.start_main_~j~1#1| 29) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 29141#(< |ULTIMATE.start_main_~j~1#1| 19), Black: 3188#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 26693#(< |ULTIMATE.start_main_~j~1#1| 28), Black: 4367#(and (= 0 |ULTIMATE.start_main_#t~post27#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 29685#(< |ULTIMATE.start_main_~j~1#1| 17), Black: 1875#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 28597#(< |ULTIMATE.start_main_~j~1#1| 21), Black: 4363#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 29)), Black: 29413#(< |ULTIMATE.start_main_~j~1#1| 18), Black: 3013#(<= |ULTIMATE.start_main_~j~1#1| 3), Black: 26421#(< |ULTIMATE.start_main_~j~1#1| 29), 430#true, Black: 4387#(and (<= |ULTIMATE.start_main_~j~1#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 1873#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 28869#(< |ULTIMATE.start_main_~j~1#1| 20), Black: 4399#(and (<= |ULTIMATE.start_main_~j~1#1| 28) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 28325#(< |ULTIMATE.start_main_~j~1#1| 22), Black: 4357#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 28)), 30952#true, Black: 30946#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= 0 (select (select |#race| |~#c~0.base|) (+ 3 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))))), Black: 30945#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0)), Black: 30944#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0)), Black: 30943#(= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0), Black: 11297#(< |ULTIMATE.start_main_~j~1#1| 28), Black: 12385#(< |ULTIMATE.start_main_~j~1#1| 24), Black: 11841#(< |ULTIMATE.start_main_~j~1#1| 26), Black: 11014#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 12113#(< |ULTIMATE.start_main_~j~1#1| 25), Black: 11025#(< |ULTIMATE.start_main_~j~1#1| 29), Black: 4468#(<= |ULTIMATE.start_main_~j~1#1| 7), Black: 11569#(< |ULTIMATE.start_main_~j~1#1| 27), 13316#true, Black: 13310#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 3 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0))]) [2024-12-02 14:03:15,643 INFO L294 olderBase$Statistics]: this new event has 13885 ancestors and is cut-off event [2024-12-02 14:03:15,643 INFO L297 olderBase$Statistics]: existing Event has 13858 ancestors and is cut-off event [2024-12-02 14:03:15,643 INFO L297 olderBase$Statistics]: existing Event has 13858 ancestors and is cut-off event [2024-12-02 14:03:15,643 INFO L297 olderBase$Statistics]: existing Event has 13858 ancestors and is cut-off event [2024-12-02 14:03:17,384 INFO L124 PetriNetUnfolderBase]: 343/16048 cut-off events. [2024-12-02 14:03:17,384 INFO L125 PetriNetUnfolderBase]: For 6493/6511 co-relation queries the response was YES. [2024-12-02 14:03:17,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20112 conditions, 16048 events. 343/16048 cut-off events. For 6493/6511 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 16706 event pairs, 100 based on Foata normal form. 9/15788 useless extension candidates. Maximal degree in co-relation 17437. Up to 280 conditions per place. [2024-12-02 14:03:17,417 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 17 selfloop transitions, 15 changer transitions 0/761 dead transitions. [2024-12-02 14:03:17,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 761 transitions, 4268 flow [2024-12-02 14:03:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 14:03:17,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-02 14:03:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 6245 transitions. [2024-12-02 14:03:17,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9483675018982536 [2024-12-02 14:03:17,420 INFO L175 Difference]: Start difference. First operand has 614 places, 748 transitions, 4158 flow. Second operand 15 states and 6245 transitions. [2024-12-02 14:03:17,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 761 transitions, 4268 flow [2024-12-02 14:03:17,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 761 transitions, 4268 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 14:03:17,459 INFO L231 Difference]: Finished difference. Result has 632 places, 757 transitions, 4248 flow [2024-12-02 14:03:17,460 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=4158, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4248, PETRI_PLACES=632, PETRI_TRANSITIONS=757} [2024-12-02 14:03:17,460 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 205 predicate places. [2024-12-02 14:03:17,460 INFO L471 AbstractCegarLoop]: Abstraction has has 632 places, 757 transitions, 4248 flow [2024-12-02 14:03:17,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 416.0) internal successors, (5824), 14 states have internal predecessors, (5824), 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 14:03:17,461 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:03:17,463 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] [2024-12-02 14:03:17,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 14:03:17,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57548a05-6cae-49bd-895d-0f9bd2b46234/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:03:17,663 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:03:17,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:03:17,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1751805517, now seen corresponding path program 2 times [2024-12-02 14:03:17,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:03:17,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921815926] [2024-12-02 14:03:17,700 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 14:03:17,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:03:19,290 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 14:03:19,291 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 14:03:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1480345 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1480345 trivial. 0 not checked. [2024-12-02 14:03:19,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:03:19,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921815926] [2024-12-02 14:03:19,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921815926] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:03:19,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:03:19,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:03:19,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987872824] [2024-12-02 14:03:19,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:03:19,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:03:19,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:03:19,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:03:19,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:03:20,018 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 439 [2024-12-02 14:03:20,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 757 transitions, 4248 flow. Second operand has 6 states, 6 states have (on average 376.5) internal successors, (2259), 6 states have internal predecessors, (2259), 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 14:03:20,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:03:20,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 439 [2024-12-02 14:03:20,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:03:50,047 INFO L124 PetriNetUnfolderBase]: 454/16302 cut-off events. [2024-12-02 14:03:50,048 INFO L125 PetriNetUnfolderBase]: For 7239/7324 co-relation queries the response was YES. [2024-12-02 14:03:50,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25338 conditions, 16302 events. 454/16302 cut-off events. For 7239/7324 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 20200 event pairs, 87 based on Foata normal form. 34/16104 useless extension candidates. Maximal degree in co-relation 21913. Up to 4803 conditions per place. [2024-12-02 14:03:50,094 INFO L140 encePairwiseOnDemand]: 428/439 looper letters, 108 selfloop transitions, 55 changer transitions 0/818 dead transitions. [2024-12-02 14:03:50,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 818 transitions, 4900 flow [2024-12-02 14:03:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:03:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 14:03:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2308 transitions. [2024-12-02 14:03:50,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8762338648443432 [2024-12-02 14:03:50,097 INFO L175 Difference]: Start difference. First operand has 632 places, 757 transitions, 4248 flow. Second operand 6 states and 2308 transitions. [2024-12-02 14:03:50,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 818 transitions, 4900 flow [2024-12-02 14:03:50,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 818 transitions, 4874 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-12-02 14:03:50,169 INFO L231 Difference]: Finished difference. Result has 638 places, 806 transitions, 4776 flow [2024-12-02 14:03:50,170 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=4222, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=757, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4776, PETRI_PLACES=638, PETRI_TRANSITIONS=806} [2024-12-02 14:03:50,170 INFO L279 CegarLoopForPetriNet]: 427 programPoint places, 211 predicate places. [2024-12-02 14:03:50,170 INFO L471 AbstractCegarLoop]: Abstraction has has 638 places, 806 transitions, 4776 flow [2024-12-02 14:03:50,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.5) internal successors, (2259), 6 states have internal predecessors, (2259), 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 14:03:50,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:03:50,174 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] [2024-12-02 14:03:50,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 14:03:50,174 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 14:03:50,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:03:50,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1410529245, now seen corresponding path program 1 times [2024-12-02 14:03:50,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:03:50,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005925362] [2024-12-02 14:03:50,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:03:50,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:03:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat