./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.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_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB --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 bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:45:26,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:45:26,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 02:45:26,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:45:26,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:45:26,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:45:26,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:45:26,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:45:26,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:45:26,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:45:26,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:45:26,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:45:26,930 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:45:26,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:45:26,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:45:26,931 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:45:26,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:45:26,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:45:26,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:45:26,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:45:26,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:45:26,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:45:26,933 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 02:45:26,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:45:26,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:45:26,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:45:26,933 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:45:26,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:45:26,934 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:45:26,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:45:26,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:45:26,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:26,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:45:26,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:45:26,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:45:26,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:26,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:45:26,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:45:26,935 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:45:26,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:45:26,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:45:26,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:45:26,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:45:26,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:45:26,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:45:26,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:45:26,936 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_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB 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 -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2024-11-28 02:45:27,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:45:27,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:45:27,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:45:27,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:45:27,325 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:45:27,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-28 02:45:30,744 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/data/171d3d512/6790c55d7a9347b2b56f85553e02c688/FLAGa8d646f20 [2024-11-28 02:45:31,120 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:45:31,121 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-28 02:45:31,138 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/data/171d3d512/6790c55d7a9347b2b56f85553e02c688/FLAGa8d646f20 [2024-11-28 02:45:31,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/data/171d3d512/6790c55d7a9347b2b56f85553e02c688 [2024-11-28 02:45:31,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:45:31,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:45:31,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:31,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:45:31,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:45:31,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:31,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f744663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31, skipping insertion in model container [2024-11-28 02:45:31,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:31,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:45:31,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:31,830 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:45:31,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:31,988 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:45:31,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31 WrapperNode [2024-11-28 02:45:31,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:31,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:31,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:45:31,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:45:32,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,091 INFO L138 Inliner]: procedures = 272, calls = 108, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 422 [2024-11-28 02:45:32,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:32,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:45:32,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:45:32,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:45:32,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,160 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:45:32,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:45:32,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:45:32,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:45:32,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (1/1) ... [2024-11-28 02:45:32,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:32,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:32,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:45:32,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 02:45:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 02:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 02:45:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 02:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:45:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:45:32,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:45:32,282 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:45:32,493 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:45:32,495 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:45:33,536 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:45:33,536 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:45:33,635 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:45:33,635 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-28 02:45:33,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:33 BoogieIcfgContainer [2024-11-28 02:45:33,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:45:33,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:45:33,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:45:33,652 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:45:33,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:45:31" (1/3) ... [2024-11-28 02:45:33,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30397e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:45:33, skipping insertion in model container [2024-11-28 02:45:33,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:31" (2/3) ... [2024-11-28 02:45:33,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30397e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:45:33, skipping insertion in model container [2024-11-28 02:45:33,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:33" (3/3) ... [2024-11-28 02:45:33,658 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2024-11-28 02:45:33,678 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:45:33,680 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_71-funloop_racing.i that has 2 procedures, 397 locations, 1 initial locations, 20 loop locations, and 17 error locations. [2024-11-28 02:45:33,680 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:45:33,833 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 02:45:33,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 400 places, 445 transitions, 897 flow [2024-11-28 02:45:34,354 INFO L124 PetriNetUnfolderBase]: 78/679 cut-off events. [2024-11-28 02:45:34,361 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 02:45:34,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 679 events. 78/679 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3335 event pairs, 0 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 350. Up to 8 conditions per place. [2024-11-28 02:45:34,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 400 places, 445 transitions, 897 flow [2024-11-28 02:45:34,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 400 places, 445 transitions, 897 flow [2024-11-28 02:45:34,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:45:34,426 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;@461ba4cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:45:34,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-28 02:45:34,468 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:45:34,469 INFO L124 PetriNetUnfolderBase]: 8/138 cut-off events. [2024-11-28 02:45:34,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:45:34,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:34,471 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] [2024-11-28 02:45:34,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 02:45:34,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:34,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1735050686, now seen corresponding path program 1 times [2024-11-28 02:45:34,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:34,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741033996] [2024-11-28 02:45:34,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:34,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:35,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:35,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741033996] [2024-11-28 02:45:35,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741033996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:35,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:35,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:45:35,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421070256] [2024-11-28 02:45:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:35,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:45:35,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:35,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:45:35,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:45:35,287 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 445 [2024-11-28 02:45:35,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 445 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:35,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:45:35,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 445 [2024-11-28 02:45:35,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:45:36,312 INFO L124 PetriNetUnfolderBase]: 161/2166 cut-off events. [2024-11-28 02:45:36,313 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-11-28 02:45:36,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 2166 events. 161/2166 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17582 event pairs, 120 based on Foata normal form. 381/2362 useless extension candidates. Maximal degree in co-relation 2142. Up to 302 conditions per place. [2024-11-28 02:45:36,340 INFO L140 encePairwiseOnDemand]: 401/445 looper letters, 29 selfloop transitions, 2 changer transitions 0/399 dead transitions. [2024-11-28 02:45:36,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 399 transitions, 867 flow [2024-11-28 02:45:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:45:36,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:45:36,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2024-11-28 02:45:36,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8891385767790262 [2024-11-28 02:45:36,377 INFO L175 Difference]: Start difference. First operand has 400 places, 445 transitions, 897 flow. Second operand 3 states and 1187 transitions. [2024-11-28 02:45:36,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 399 transitions, 867 flow [2024-11-28 02:45:36,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 399 transitions, 867 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:45:36,410 INFO L231 Difference]: Finished difference. Result has 397 places, 399 transitions, 815 flow [2024-11-28 02:45:36,414 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=397, PETRI_TRANSITIONS=399} [2024-11-28 02:45:36,422 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, -3 predicate places. [2024-11-28 02:45:36,422 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 399 transitions, 815 flow [2024-11-28 02:45:36,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:36,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:36,424 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] [2024-11-28 02:45:36,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:45:36,426 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 02:45:36,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:36,428 INFO L85 PathProgramCache]: Analyzing trace with hash -32494076, now seen corresponding path program 1 times [2024-11-28 02:45:36,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:36,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708118354] [2024-11-28 02:45:36,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:36,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:36,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:36,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:36,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708118354] [2024-11-28 02:45:36,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708118354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:45:36,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972250366] [2024-11-28 02:45:36,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:36,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:36,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:36,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:36,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:45:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:37,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:45:37,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:37,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:45:37,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:37,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972250366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:45:37,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:45:37,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 02:45:37,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215024137] [2024-11-28 02:45:37,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:45:37,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:45:37,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:37,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:45:37,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:45:37,318 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 445 [2024-11-28 02:45:37,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 399 transitions, 815 flow. Second operand has 10 states, 10 states have (on average 369.8) internal successors, (3698), 10 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:37,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:45:37,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 445 [2024-11-28 02:45:37,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:45:38,046 INFO L124 PetriNetUnfolderBase]: 161/2173 cut-off events. [2024-11-28 02:45:38,047 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2024-11-28 02:45:38,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 2173 events. 161/2173 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17523 event pairs, 120 based on Foata normal form. 2/1990 useless extension candidates. Maximal degree in co-relation 2406. Up to 302 conditions per place. [2024-11-28 02:45:38,065 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 33 selfloop transitions, 9 changer transitions 0/407 dead transitions. [2024-11-28 02:45:38,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 407 transitions, 917 flow [2024-11-28 02:45:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:45:38,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:45:38,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3356 transitions. [2024-11-28 02:45:38,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8379525593008739 [2024-11-28 02:45:38,078 INFO L175 Difference]: Start difference. First operand has 397 places, 399 transitions, 815 flow. Second operand 9 states and 3356 transitions. [2024-11-28 02:45:38,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 407 transitions, 917 flow [2024-11-28 02:45:38,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 407 transitions, 915 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:45:38,089 INFO L231 Difference]: Finished difference. Result has 407 places, 405 transitions, 863 flow [2024-11-28 02:45:38,090 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=863, PETRI_PLACES=407, PETRI_TRANSITIONS=405} [2024-11-28 02:45:38,091 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, 7 predicate places. [2024-11-28 02:45:38,092 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 405 transitions, 863 flow [2024-11-28 02:45:38,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 369.8) internal successors, (3698), 10 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:38,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:38,099 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:45:38,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:45:38,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 02:45:38,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 02:45:38,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:38,305 INFO L85 PathProgramCache]: Analyzing trace with hash 695725252, now seen corresponding path program 2 times [2024-11-28 02:45:38,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:38,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065513687] [2024-11-28 02:45:38,305 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:45:38,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:38,386 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:45:38,386 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:45:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 02:45:39,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:39,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065513687] [2024-11-28 02:45:39,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065513687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:39,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:39,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:45:39,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102404413] [2024-11-28 02:45:39,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:39,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:45:39,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:39,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:45:39,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:45:40,076 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 445 [2024-11-28 02:45:40,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 405 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 300.5) internal successors, (1803), 6 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:40,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:45:40,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 445 [2024-11-28 02:45:40,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:45:42,848 INFO L124 PetriNetUnfolderBase]: 2280/9070 cut-off events. [2024-11-28 02:45:42,849 INFO L125 PetriNetUnfolderBase]: For 14/17 co-relation queries the response was YES. [2024-11-28 02:45:42,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13562 conditions, 9070 events. 2280/9070 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 92178 event pairs, 1582 based on Foata normal form. 0/8280 useless extension candidates. Maximal degree in co-relation 13438. Up to 4230 conditions per place. [2024-11-28 02:45:42,907 INFO L140 encePairwiseOnDemand]: 418/445 looper letters, 133 selfloop transitions, 86 changer transitions 0/522 dead transitions. [2024-11-28 02:45:42,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 522 transitions, 1535 flow [2024-11-28 02:45:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:45:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:45:42,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2014 transitions. [2024-11-28 02:45:42,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7543071161048689 [2024-11-28 02:45:42,917 INFO L175 Difference]: Start difference. First operand has 407 places, 405 transitions, 863 flow. Second operand 6 states and 2014 transitions. [2024-11-28 02:45:42,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 522 transitions, 1535 flow [2024-11-28 02:45:42,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 522 transitions, 1529 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 02:45:42,937 INFO L231 Difference]: Finished difference. Result has 416 places, 490 transitions, 1423 flow [2024-11-28 02:45:42,938 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1423, PETRI_PLACES=416, PETRI_TRANSITIONS=490} [2024-11-28 02:45:42,940 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, 16 predicate places. [2024-11-28 02:45:42,940 INFO L471 AbstractCegarLoop]: Abstraction has has 416 places, 490 transitions, 1423 flow [2024-11-28 02:45:42,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 300.5) internal successors, (1803), 6 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:42,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:42,943 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:45:42,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:45:42,943 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 02:45:42,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:42,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1729675030, now seen corresponding path program 1 times [2024-11-28 02:45:42,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:42,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626087716] [2024-11-28 02:45:42,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:42,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 02:45:43,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:43,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626087716] [2024-11-28 02:45:43,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626087716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:43,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:43,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:45:43,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130131966] [2024-11-28 02:45:43,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:43,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:45:43,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:43,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:45:43,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:45:43,152 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 445 [2024-11-28 02:45:43,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 490 transitions, 1423 flow. Second operand has 3 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:43,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:45:43,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 445 [2024-11-28 02:45:43,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:45:44,022 INFO L124 PetriNetUnfolderBase]: 335/2984 cut-off events. [2024-11-28 02:45:44,023 INFO L125 PetriNetUnfolderBase]: For 158/180 co-relation queries the response was YES. [2024-11-28 02:45:44,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4020 conditions, 2984 events. 335/2984 cut-off events. For 158/180 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 26648 event pairs, 136 based on Foata normal form. 1/2738 useless extension candidates. Maximal degree in co-relation 3894. Up to 374 conditions per place. [2024-11-28 02:45:44,051 INFO L140 encePairwiseOnDemand]: 442/445 looper letters, 36 selfloop transitions, 3 changer transitions 0/498 dead transitions. [2024-11-28 02:45:44,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 498 transitions, 1517 flow [2024-11-28 02:45:44,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:45:44,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:45:44,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1152 transitions. [2024-11-28 02:45:44,056 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8629213483146068 [2024-11-28 02:45:44,057 INFO L175 Difference]: Start difference. First operand has 416 places, 490 transitions, 1423 flow. Second operand 3 states and 1152 transitions. [2024-11-28 02:45:44,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 498 transitions, 1517 flow [2024-11-28 02:45:44,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 498 transitions, 1517 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:45:44,082 INFO L231 Difference]: Finished difference. Result has 419 places, 490 transitions, 1434 flow [2024-11-28 02:45:44,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=1423, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1434, PETRI_PLACES=419, PETRI_TRANSITIONS=490} [2024-11-28 02:45:44,085 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, 19 predicate places. [2024-11-28 02:45:44,086 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 490 transitions, 1434 flow [2024-11-28 02:45:44,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:44,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:44,087 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:44,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:45:44,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 02:45:44,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1679930369, now seen corresponding path program 1 times [2024-11-28 02:45:44,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:44,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919550678] [2024-11-28 02:45:44,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:44,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:44,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:44,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919550678] [2024-11-28 02:45:44,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919550678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:45:44,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889601112] [2024-11-28 02:45:44,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:44,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:44,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:44,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:44,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:45:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:44,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:45:44,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:44,745 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:44,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:45:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:44,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889601112] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:45:44,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:45:44,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-28 02:45:44,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819882710] [2024-11-28 02:45:44,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:45:44,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 02:45:44,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:44,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 02:45:44,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:45:45,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 445 [2024-11-28 02:45:45,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 490 transitions, 1434 flow. Second operand has 18 states, 18 states have (on average 369.94444444444446) internal successors, (6659), 18 states have internal predecessors, (6659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:45,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:45:45,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 445 [2024-11-28 02:45:45,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:45:46,199 INFO L124 PetriNetUnfolderBase]: 319/2886 cut-off events. [2024-11-28 02:45:46,200 INFO L125 PetriNetUnfolderBase]: For 172/213 co-relation queries the response was YES. [2024-11-28 02:45:46,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4255 conditions, 2886 events. 319/2886 cut-off events. For 172/213 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 25503 event pairs, 120 based on Foata normal form. 4/2667 useless extension candidates. Maximal degree in co-relation 4053. Up to 556 conditions per place. [2024-11-28 02:45:46,232 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 37 selfloop transitions, 21 changer transitions 0/508 dead transitions. [2024-11-28 02:45:46,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 508 transitions, 1638 flow [2024-11-28 02:45:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 02:45:46,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 02:45:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7790 transitions. [2024-11-28 02:45:46,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8336008560727662 [2024-11-28 02:45:46,257 INFO L175 Difference]: Start difference. First operand has 419 places, 490 transitions, 1434 flow. Second operand 21 states and 7790 transitions. [2024-11-28 02:45:46,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 508 transitions, 1638 flow [2024-11-28 02:45:46,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 508 transitions, 1632 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:45:46,274 INFO L231 Difference]: Finished difference. Result has 442 places, 503 transitions, 1558 flow [2024-11-28 02:45:46,275 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=1428, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1558, PETRI_PLACES=442, PETRI_TRANSITIONS=503} [2024-11-28 02:45:46,277 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, 42 predicate places. [2024-11-28 02:45:46,277 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 503 transitions, 1558 flow [2024-11-28 02:45:46,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 369.94444444444446) internal successors, (6659), 18 states have internal predecessors, (6659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:46,283 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:46,283 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:46,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:45:46,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:46,484 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 02:45:46,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2009323137, now seen corresponding path program 2 times [2024-11-28 02:45:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:46,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443673517] [2024-11-28 02:45:46,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:45:46,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:46,541 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:45:46,541 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:45:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:47,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:47,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443673517] [2024-11-28 02:45:47,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443673517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:45:47,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311464608] [2024-11-28 02:45:47,090 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:45:47,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:47,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:47,094 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:47,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:45:47,285 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:45:47,285 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:45:47,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:45:47,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:47,455 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:47,455 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:45:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:47,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311464608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:45:47,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:45:47,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 02:45:47,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066158505] [2024-11-28 02:45:47,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:45:47,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 02:45:47,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:47,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 02:45:47,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:45:47,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 445 [2024-11-28 02:45:47,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 503 transitions, 1558 flow. Second operand has 23 states, 23 states have (on average 370.04347826086956) internal successors, (8511), 23 states have internal predecessors, (8511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:47,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:45:47,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 445 [2024-11-28 02:45:47,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:45:49,086 INFO L124 PetriNetUnfolderBase]: 319/2901 cut-off events. [2024-11-28 02:45:49,086 INFO L125 PetriNetUnfolderBase]: For 273/314 co-relation queries the response was YES. [2024-11-28 02:45:49,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4355 conditions, 2901 events. 319/2901 cut-off events. For 273/314 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 25464 event pairs, 120 based on Foata normal form. 3/2681 useless extension candidates. Maximal degree in co-relation 4053. Up to 556 conditions per place. [2024-11-28 02:45:49,107 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 40 selfloop transitions, 30 changer transitions 0/520 dead transitions. [2024-11-28 02:45:49,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 520 transitions, 1826 flow [2024-11-28 02:45:49,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 02:45:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-28 02:45:49,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11113 transitions. [2024-11-28 02:45:49,132 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.832434456928839 [2024-11-28 02:45:49,132 INFO L175 Difference]: Start difference. First operand has 442 places, 503 transitions, 1558 flow. Second operand 30 states and 11113 transitions. [2024-11-28 02:45:49,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 520 transitions, 1826 flow [2024-11-28 02:45:49,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 520 transitions, 1796 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-28 02:45:49,153 INFO L231 Difference]: Finished difference. Result has 469 places, 513 transitions, 1686 flow [2024-11-28 02:45:49,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=1534, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1686, PETRI_PLACES=469, PETRI_TRANSITIONS=513} [2024-11-28 02:45:49,156 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, 69 predicate places. [2024-11-28 02:45:49,157 INFO L471 AbstractCegarLoop]: Abstraction has has 469 places, 513 transitions, 1686 flow [2024-11-28 02:45:49,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 370.04347826086956) internal successors, (8511), 23 states have internal predecessors, (8511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:49,160 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:49,161 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:49,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:45:49,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:49,362 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-28 02:45:49,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:49,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1400579203, now seen corresponding path program 3 times [2024-11-28 02:45:49,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:49,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011164866] [2024-11-28 02:45:49,364 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:45:49,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:49,497 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 02:45:49,497 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 02:45:49,497 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:45:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:45:49,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:45:49,594 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:45:49,595 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-28 02:45:49,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-28 02:45:49,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-28 02:45:49,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-28 02:45:49,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-28 02:45:49,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-28 02:45:49,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-28 02:45:49,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-28 02:45:49,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-28 02:45:49,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-28 02:45:49,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-28 02:45:49,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-28 02:45:49,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-28 02:45:49,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-28 02:45:49,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-28 02:45:49,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-28 02:45:49,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-28 02:45:49,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-28 02:45:49,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-28 02:45:49,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-28 02:45:49,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-28 02:45:49,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-28 02:45:49,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-28 02:45:49,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:45:49,600 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2024-11-28 02:45:49,603 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:45:49,603 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 02:45:49,688 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 02:45:49,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 560 transitions, 1136 flow [2024-11-28 02:45:49,922 INFO L124 PetriNetUnfolderBase]: 126/1056 cut-off events. [2024-11-28 02:45:49,922 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 02:45:49,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 1056 events. 126/1056 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6109 event pairs, 0 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 681. Up to 12 conditions per place. [2024-11-28 02:45:49,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 501 places, 560 transitions, 1136 flow [2024-11-28 02:45:49,949 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 501 places, 560 transitions, 1136 flow [2024-11-28 02:45:49,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:45:49,952 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;@461ba4cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:45:49,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-28 02:45:49,964 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:45:49,965 INFO L124 PetriNetUnfolderBase]: 8/138 cut-off events. [2024-11-28 02:45:49,965 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:45:49,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:49,965 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] [2024-11-28 02:45:49,966 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 02:45:49,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:49,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1766041714, now seen corresponding path program 1 times [2024-11-28 02:45:49,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:49,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504250425] [2024-11-28 02:45:49,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:49,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:50,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:50,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504250425] [2024-11-28 02:45:50,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504250425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:50,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:50,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:45:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617747913] [2024-11-28 02:45:50,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:50,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:45:50,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:50,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:45:50,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:45:50,063 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 560 [2024-11-28 02:45:50,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 560 transitions, 1136 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:50,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:45:50,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 560 [2024-11-28 02:45:50,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:45:54,604 INFO L124 PetriNetUnfolderBase]: 2887/20443 cut-off events. [2024-11-28 02:45:54,605 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2024-11-28 02:45:54,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24699 conditions, 20443 events. 2887/20443 cut-off events. For 151/155 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 273975 event pairs, 2376 based on Foata normal form. 5241/23985 useless extension candidates. Maximal degree in co-relation 22020. Up to 4183 conditions per place. [2024-11-28 02:45:54,769 INFO L140 encePairwiseOnDemand]: 503/560 looper letters, 39 selfloop transitions, 2 changer transitions 0/499 dead transitions. [2024-11-28 02:45:54,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 499 transitions, 1096 flow [2024-11-28 02:45:54,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:45:54,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:45:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1483 transitions. [2024-11-28 02:45:54,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8827380952380952 [2024-11-28 02:45:54,775 INFO L175 Difference]: Start difference. First operand has 501 places, 560 transitions, 1136 flow. Second operand 3 states and 1483 transitions. [2024-11-28 02:45:54,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 499 transitions, 1096 flow [2024-11-28 02:45:54,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 499 transitions, 1096 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:45:54,785 INFO L231 Difference]: Finished difference. Result has 496 places, 499 transitions, 1024 flow [2024-11-28 02:45:54,786 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=560, PETRI_DIFFERENCE_MINUEND_FLOW=1012, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1024, PETRI_PLACES=496, PETRI_TRANSITIONS=499} [2024-11-28 02:45:54,787 INFO L279 CegarLoopForPetriNet]: 501 programPoint places, -5 predicate places. [2024-11-28 02:45:54,787 INFO L471 AbstractCegarLoop]: Abstraction has has 496 places, 499 transitions, 1024 flow [2024-11-28 02:45:54,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:54,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:54,789 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] [2024-11-28 02:45:54,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:45:54,789 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 02:45:54,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1862691836, now seen corresponding path program 1 times [2024-11-28 02:45:54,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:54,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135236049] [2024-11-28 02:45:54,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:54,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:54,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:54,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135236049] [2024-11-28 02:45:54,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135236049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:45:54,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694545140] [2024-11-28 02:45:54,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:54,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:54,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:54,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:45:54,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:45:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:55,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:45:55,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:55,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:55,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:45:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:55,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694545140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:45:55,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:45:55,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 02:45:55,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256733028] [2024-11-28 02:45:55,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:45:55,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:45:55,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:55,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:45:55,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:45:55,181 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 560 [2024-11-28 02:45:55,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 499 transitions, 1024 flow. Second operand has 10 states, 10 states have (on average 460.8) internal successors, (4608), 10 states have internal predecessors, (4608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:55,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:45:55,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 560 [2024-11-28 02:45:55,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:45:58,414 INFO L124 PetriNetUnfolderBase]: 2887/20450 cut-off events. [2024-11-28 02:45:58,414 INFO L125 PetriNetUnfolderBase]: For 150/154 co-relation queries the response was YES. [2024-11-28 02:45:58,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24725 conditions, 20450 events. 2887/20450 cut-off events. For 150/154 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 274580 event pairs, 2376 based on Foata normal form. 2/18753 useless extension candidates. Maximal degree in co-relation 24629. Up to 4183 conditions per place. [2024-11-28 02:45:58,560 INFO L140 encePairwiseOnDemand]: 554/560 looper letters, 43 selfloop transitions, 9 changer transitions 0/507 dead transitions. [2024-11-28 02:45:58,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 507 transitions, 1146 flow [2024-11-28 02:45:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:45:58,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:45:58,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4185 transitions. [2024-11-28 02:45:58,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8303571428571429 [2024-11-28 02:45:58,570 INFO L175 Difference]: Start difference. First operand has 496 places, 499 transitions, 1024 flow. Second operand 9 states and 4185 transitions. [2024-11-28 02:45:58,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 507 transitions, 1146 flow [2024-11-28 02:45:58,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 507 transitions, 1144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:45:58,583 INFO L231 Difference]: Finished difference. Result has 506 places, 505 transitions, 1072 flow [2024-11-28 02:45:58,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=560, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1072, PETRI_PLACES=506, PETRI_TRANSITIONS=505} [2024-11-28 02:45:58,585 INFO L279 CegarLoopForPetriNet]: 501 programPoint places, 5 predicate places. [2024-11-28 02:45:58,585 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 505 transitions, 1072 flow [2024-11-28 02:45:58,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 460.8) internal successors, (4608), 10 states have internal predecessors, (4608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:45:58,588 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:45:58,589 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-28 02:45:58,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:45:58,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f4a9614-ddbb-4731-8737-b90cbc60f89b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:45:58,790 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 02:45:58,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:58,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1839451964, now seen corresponding path program 2 times [2024-11-28 02:45:58,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:58,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025428907] [2024-11-28 02:45:58,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:45:58,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:58,817 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:45:58,817 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:45:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 02:45:59,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:59,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025428907] [2024-11-28 02:45:59,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025428907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:59,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:59,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:45:59,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495146217] [2024-11-28 02:45:59,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:59,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:45:59,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:59,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:45:59,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:46:00,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 560 [2024-11-28 02:46:00,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 505 transitions, 1072 flow. Second operand has 6 states, 6 states have (on average 371.5) internal successors, (2229), 6 states have internal predecessors, (2229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:46:00,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:46:00,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 560 [2024-11-28 02:46:00,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand