./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC --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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:53:23,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:53:23,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 00:53:23,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:53:23,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:53:23,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:53:23,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:53:23,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:53:23,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:53:23,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:53:23,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:53:23,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:53:23,411 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:53:23,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:53:23,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:53:23,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:53:23,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:53:23,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:53:23,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:53:23,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:53:23,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:53:23,412 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:53:23,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:53:23,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:53:23,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:53:23,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:53:23,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:53:23,415 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:53:23,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:53:23,415 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_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC 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 -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2024-11-24 00:53:23,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:53:23,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:53:23,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:53:23,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:53:23,772 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:53:23,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-24 00:53:26,806 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/data/0602743c2/2829bb702e27443e837a7d7678da954c/FLAG048de3a73 [2024-11-24 00:53:27,144 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:53:27,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-24 00:53:27,174 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/data/0602743c2/2829bb702e27443e837a7d7678da954c/FLAG048de3a73 [2024-11-24 00:53:27,189 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/data/0602743c2/2829bb702e27443e837a7d7678da954c [2024-11-24 00:53:27,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:53:27,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:53:27,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:53:27,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:53:27,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:53:27,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:53:27" (1/1) ... [2024-11-24 00:53:27,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfd34c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:27, skipping insertion in model container [2024-11-24 00:53:27,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:53:27" (1/1) ... [2024-11-24 00:53:27,251 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:53:27,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:53:27,950 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:53:28,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:53:28,070 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:53:28,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28 WrapperNode [2024-11-24 00:53:28,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:53:28,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:53:28,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:53:28,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:53:28,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,152 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 287 [2024-11-24 00:53:28,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:53:28,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:53:28,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:53:28,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:53:28,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:53:28,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:53:28,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:53:28,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:53:28,230 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (1/1) ... [2024-11-24 00:53:28,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:53:28,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:53:28,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:53:28,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e03530b-0261-48b9-a0f1-a414050088b7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:53:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:53:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:53:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:53:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:53:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:53:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:53:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:53:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 00:53:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 00:53:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:53:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:53:28,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:53:28,312 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:53:28,494 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:53:28,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:53:29,250 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:53:29,251 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:53:29,314 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:53:29,314 INFO L312 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-24 00:53:29,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:53:29 BoogieIcfgContainer [2024-11-24 00:53:29,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:53:29,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:53:29,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:53:29,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:53:29,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:53:27" (1/3) ... [2024-11-24 00:53:29,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bfb6521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:53:29, skipping insertion in model container [2024-11-24 00:53:29,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:53:28" (2/3) ... [2024-11-24 00:53:29,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bfb6521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:53:29, skipping insertion in model container [2024-11-24 00:53:29,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:53:29" (3/3) ... [2024-11-24 00:53:29,325 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-11-24 00:53:29,345 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:53:29,347 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_79-equ_racefree.i that has 2 procedures, 268 locations, 1 initial locations, 12 loop locations, and 12 error locations. [2024-11-24 00:53:29,347 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:53:29,473 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 00:53:29,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 299 transitions, 605 flow [2024-11-24 00:53:29,782 INFO L124 PetriNetUnfolderBase]: 46/428 cut-off events. [2024-11-24 00:53:29,784 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:53:29,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 428 events. 46/428 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1733 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 232. Up to 8 conditions per place. [2024-11-24 00:53:29,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 299 transitions, 605 flow [2024-11-24 00:53:29,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 297 transitions, 601 flow [2024-11-24 00:53:29,826 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:53:29,842 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;@48e7c4bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:53:29,843 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-24 00:53:29,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:53:29,867 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-11-24 00:53:29,867 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:53:29,867 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:53:29,868 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] [2024-11-24 00:53:29,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-24 00:53:29,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:29,879 INFO L85 PathProgramCache]: Analyzing trace with hash 636827231, now seen corresponding path program 1 times [2024-11-24 00:53:29,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:29,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606467878] [2024-11-24 00:53:29,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:29,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:53:31,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:31,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606467878] [2024-11-24 00:53:31,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606467878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:31,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:31,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:53:31,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032768501] [2024-11-24 00:53:31,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:31,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:53:31,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:31,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:53:31,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:53:31,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 299 [2024-11-24 00:53:31,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 297 transitions, 601 flow. Second operand has 6 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 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) [2024-11-24 00:53:31,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:53:31,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 299 [2024-11-24 00:53:31,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:53:33,575 INFO L124 PetriNetUnfolderBase]: 1365/5236 cut-off events. [2024-11-24 00:53:33,576 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-24 00:53:33,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8008 conditions, 5236 events. 1365/5236 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 46503 event pairs, 997 based on Foata normal form. 732/5500 useless extension candidates. Maximal degree in co-relation 7752. Up to 2548 conditions per place. [2024-11-24 00:53:33,603 INFO L140 encePairwiseOnDemand]: 246/299 looper letters, 107 selfloop transitions, 86 changer transitions 0/384 dead transitions. [2024-11-24 00:53:33,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 384 transitions, 1161 flow [2024-11-24 00:53:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:53:33,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:53:33,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1438 transitions. [2024-11-24 00:53:33,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8015607580824972 [2024-11-24 00:53:33,631 INFO L175 Difference]: Start difference. First operand has 270 places, 297 transitions, 601 flow. Second operand 6 states and 1438 transitions. [2024-11-24 00:53:33,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 384 transitions, 1161 flow [2024-11-24 00:53:33,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 384 transitions, 1161 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:53:33,650 INFO L231 Difference]: Finished difference. Result has 276 places, 352 transitions, 1107 flow [2024-11-24 00:53:33,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1107, PETRI_PLACES=276, PETRI_TRANSITIONS=352} [2024-11-24 00:53:33,658 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 6 predicate places. [2024-11-24 00:53:33,660 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 352 transitions, 1107 flow [2024-11-24 00:53:33,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 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) [2024-11-24 00:53:33,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:53:33,662 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] [2024-11-24 00:53:33,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:53:33,663 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-24 00:53:33,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:33,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1688298422, now seen corresponding path program 1 times [2024-11-24 00:53:33,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:33,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679202754] [2024-11-24 00:53:33,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:33,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:53:33,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:33,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679202754] [2024-11-24 00:53:33,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679202754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:33,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:33,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:53:33,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548118572] [2024-11-24 00:53:33,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:33,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:53:33,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:33,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:53:33,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:53:33,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 299 [2024-11-24 00:53:33,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 352 transitions, 1107 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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) [2024-11-24 00:53:33,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:53:33,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 299 [2024-11-24 00:53:33,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:53:34,157 INFO L124 PetriNetUnfolderBase]: 265/1917 cut-off events. [2024-11-24 00:53:34,158 INFO L125 PetriNetUnfolderBase]: For 149/165 co-relation queries the response was YES. [2024-11-24 00:53:34,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2808 conditions, 1917 events. 265/1917 cut-off events. For 149/165 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14771 event pairs, 77 based on Foata normal form. 1/1768 useless extension candidates. Maximal degree in co-relation 2671. Up to 235 conditions per place. [2024-11-24 00:53:34,170 INFO L140 encePairwiseOnDemand]: 296/299 looper letters, 30 selfloop transitions, 3 changer transitions 0/360 dead transitions. [2024-11-24 00:53:34,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 360 transitions, 1189 flow [2024-11-24 00:53:34,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:53:34,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:53:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 774 transitions. [2024-11-24 00:53:34,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.862876254180602 [2024-11-24 00:53:34,173 INFO L175 Difference]: Start difference. First operand has 276 places, 352 transitions, 1107 flow. Second operand 3 states and 774 transitions. [2024-11-24 00:53:34,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 360 transitions, 1189 flow [2024-11-24 00:53:34,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 360 transitions, 1189 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:53:34,185 INFO L231 Difference]: Finished difference. Result has 279 places, 352 transitions, 1118 flow [2024-11-24 00:53:34,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=279, PETRI_TRANSITIONS=352} [2024-11-24 00:53:34,186 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 9 predicate places. [2024-11-24 00:53:34,186 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 352 transitions, 1118 flow [2024-11-24 00:53:34,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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) [2024-11-24 00:53:34,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:53:34,188 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-24 00:53:34,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:53:34,188 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-24 00:53:34,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1410376974, now seen corresponding path program 1 times [2024-11-24 00:53:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:34,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858974589] [2024-11-24 00:53:34,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:53:34,225 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:53:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:53:34,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:53:34,295 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:53:34,296 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-24 00:53:34,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-24 00:53:34,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-24 00:53:34,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-24 00:53:34,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-24 00:53:34,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-24 00:53:34,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-24 00:53:34,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-24 00:53:34,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-24 00:53:34,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-24 00:53:34,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-24 00:53:34,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-24 00:53:34,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-24 00:53:34,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-24 00:53:34,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-24 00:53:34,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-24 00:53:34,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-24 00:53:34,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-24 00:53:34,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:53:34,303 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-24 00:53:34,307 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:53:34,307 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 00:53:34,369 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-24 00:53:34,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 401 transitions, 818 flow [2024-11-24 00:53:34,513 INFO L124 PetriNetUnfolderBase]: 77/687 cut-off events. [2024-11-24 00:53:34,513 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 00:53:34,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 687 events. 77/687 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3324 event pairs, 0 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 430. Up to 12 conditions per place. [2024-11-24 00:53:34,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 401 transitions, 818 flow [2024-11-24 00:53:34,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 399 transitions, 814 flow [2024-11-24 00:53:34,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:53:34,531 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;@48e7c4bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:53:34,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-24 00:53:34,544 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:53:34,544 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-11-24 00:53:34,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:53:34,545 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:53:34,545 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] [2024-11-24 00:53:34,546 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:53:34,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:53:34,550 INFO L85 PathProgramCache]: Analyzing trace with hash -252970401, now seen corresponding path program 1 times [2024-11-24 00:53:34,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:53:34,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666371330] [2024-11-24 00:53:34,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:53:34,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:53:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:53:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:53:35,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:53:35,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666371330] [2024-11-24 00:53:35,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666371330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:53:35,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:53:35,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:53:35,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715193583] [2024-11-24 00:53:35,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:53:35,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:53:35,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:53:35,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:53:35,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:53:35,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 401 [2024-11-24 00:53:35,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 399 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 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) [2024-11-24 00:53:35,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:53:35,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 401 [2024-11-24 00:53:35,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:54:00,826 INFO L124 PetriNetUnfolderBase]: 83151/197368 cut-off events. [2024-11-24 00:54:00,826 INFO L125 PetriNetUnfolderBase]: For 1038/1038 co-relation queries the response was YES. [2024-11-24 00:54:01,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322583 conditions, 197368 events. 83151/197368 cut-off events. For 1038/1038 co-relation queries the response was YES. Maximal size of possible extension queue 3622. Compared 2601302 event pairs, 59498 based on Foata normal form. 36297/220322 useless extension candidates. Maximal degree in co-relation 214283. Up to 117106 conditions per place. [2024-11-24 00:54:02,088 INFO L140 encePairwiseOnDemand]: 316/401 looper letters, 170 selfloop transitions, 166 changer transitions 0/585 dead transitions. [2024-11-24 00:54:02,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 585 transitions, 1863 flow [2024-11-24 00:54:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:54:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:54:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1995 transitions. [2024-11-24 00:54:02,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8291770573566085 [2024-11-24 00:54:02,094 INFO L175 Difference]: Start difference. First operand has 360 places, 399 transitions, 814 flow. Second operand 6 states and 1995 transitions. [2024-11-24 00:54:02,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 585 transitions, 1863 flow [2024-11-24 00:54:02,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 585 transitions, 1863 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:54:02,113 INFO L231 Difference]: Finished difference. Result has 364 places, 520 transitions, 1812 flow [2024-11-24 00:54:02,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1812, PETRI_PLACES=364, PETRI_TRANSITIONS=520} [2024-11-24 00:54:02,114 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, 4 predicate places. [2024-11-24 00:54:02,114 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 520 transitions, 1812 flow [2024-11-24 00:54:02,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 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) [2024-11-24 00:54:02,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:54:02,116 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] [2024-11-24 00:54:02,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:54:02,116 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:54:02,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:54:02,117 INFO L85 PathProgramCache]: Analyzing trace with hash -565649750, now seen corresponding path program 1 times [2024-11-24 00:54:02,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:54:02,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927368703] [2024-11-24 00:54:02,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:54:02,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:54:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:54:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:54:02,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:54:02,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927368703] [2024-11-24 00:54:02,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927368703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:54:02,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:54:02,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:54:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896779041] [2024-11-24 00:54:02,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:54:02,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:54:02,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:54:02,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:54:02,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:54:02,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 401 [2024-11-24 00:54:02,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 520 transitions, 1812 flow. Second operand has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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) [2024-11-24 00:54:02,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:54:02,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 401 [2024-11-24 00:54:02,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:54:11,928 INFO L124 PetriNetUnfolderBase]: 20082/75776 cut-off events. [2024-11-24 00:54:11,928 INFO L125 PetriNetUnfolderBase]: For 8127/8827 co-relation queries the response was YES. [2024-11-24 00:54:12,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124103 conditions, 75776 events. 20082/75776 cut-off events. For 8127/8827 co-relation queries the response was YES. Maximal size of possible extension queue 1558. Compared 1072715 event pairs, 10710 based on Foata normal form. 1/68662 useless extension candidates. Maximal degree in co-relation 55978. Up to 22916 conditions per place. [2024-11-24 00:54:12,734 INFO L140 encePairwiseOnDemand]: 398/401 looper letters, 42 selfloop transitions, 3 changer transitions 0/530 dead transitions. [2024-11-24 00:54:12,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 530 transitions, 1928 flow [2024-11-24 00:54:12,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:54:12,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:54:12,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2024-11-24 00:54:12,737 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8495428096425602 [2024-11-24 00:54:12,737 INFO L175 Difference]: Start difference. First operand has 364 places, 520 transitions, 1812 flow. Second operand 3 states and 1022 transitions. [2024-11-24 00:54:12,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 530 transitions, 1928 flow [2024-11-24 00:54:12,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 530 transitions, 1928 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:54:12,949 INFO L231 Difference]: Finished difference. Result has 367 places, 522 transitions, 1837 flow [2024-11-24 00:54:12,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=401, PETRI_DIFFERENCE_MINUEND_FLOW=1812, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1837, PETRI_PLACES=367, PETRI_TRANSITIONS=522} [2024-11-24 00:54:12,953 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, 7 predicate places. [2024-11-24 00:54:12,953 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 522 transitions, 1837 flow [2024-11-24 00:54:12,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 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) [2024-11-24 00:54:12,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:54:12,955 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] [2024-11-24 00:54:12,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:54:12,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:54:12,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:54:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2033424109, now seen corresponding path program 1 times [2024-11-24 00:54:12,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:54:12,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725368476] [2024-11-24 00:54:12,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:54:12,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:54:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:54:13,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:54:13,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:54:13,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725368476] [2024-11-24 00:54:13,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725368476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:54:13,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:54:13,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:54:13,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703430184] [2024-11-24 00:54:13,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:54:13,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:54:13,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:54:13,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:54:13,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:54:14,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 401 [2024-11-24 00:54:14,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 522 transitions, 1837 flow. Second operand has 6 states, 6 states have (on average 265.1666666666667) internal successors, (1591), 6 states have internal predecessors, (1591), 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) [2024-11-24 00:54:14,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:54:14,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 401 [2024-11-24 00:54:14,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand