./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/39_rand_lock_p0_vs-b.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_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/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_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/39_rand_lock_p0_vs-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/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_769f87c8-f267-47a8-b17f-583e4f982e85/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 963fe2b49296fadf7c892a862a5472be95dcc4e457bf5d1be114d7bd124d5424 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:37:47,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:37:47,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:37:47,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:37:47,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:37:47,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:37:47,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:37:47,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:37:47,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:37:47,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:37:47,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:37:47,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:37:47,194 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:37:47,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:37:47,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:37:47,195 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:37:47,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:37:47,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:37:47,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:37:47,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:37:47,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:37:47,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:37:47,196 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:37:47,196 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:37:47,196 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:37:47,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:37:47,197 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:37:47,197 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:37:47,197 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:37:47,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:37:47,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:37:47,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:37:47,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:37:47,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:37:47,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:37:47,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:37:47,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:37:47,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:37:47,199 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:37:47,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:37:47,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:37:47,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:37:47,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:37:47,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:37:47,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:37:47,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:37:47,200 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_769f87c8-f267-47a8-b17f-583e4f982e85/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 -> 963fe2b49296fadf7c892a862a5472be95dcc4e457bf5d1be114d7bd124d5424 [2024-11-28 04:37:47,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:37:47,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:37:47,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:37:47,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:37:47,571 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:37:47,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-ext/39_rand_lock_p0_vs-b.i [2024-11-28 04:37:51,051 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/data/753c3b8c1/dd1beb38af1249e896b65d5e372db1ba/FLAGaf912ea98 [2024-11-28 04:37:51,382 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:37:51,383 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/sv-benchmarks/c/pthread-ext/39_rand_lock_p0_vs-b.i [2024-11-28 04:37:51,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/data/753c3b8c1/dd1beb38af1249e896b65d5e372db1ba/FLAGaf912ea98 [2024-11-28 04:37:51,418 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/data/753c3b8c1/dd1beb38af1249e896b65d5e372db1ba [2024-11-28 04:37:51,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:37:51,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:37:51,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:37:51,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:37:51,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:37:51,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:51" (1/1) ... [2024-11-28 04:37:51,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2437ba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:51, skipping insertion in model container [2024-11-28 04:37:51,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:51" (1/1) ... [2024-11-28 04:37:51,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:37:52,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:37:52,040 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:37:52,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:37:52,190 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:37:52,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52 WrapperNode [2024-11-28 04:37:52,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:37:52,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:37:52,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:37:52,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:37:52,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,256 INFO L138 Inliner]: procedures = 171, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 88 [2024-11-28 04:37:52,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:37:52,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:37:52,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:37:52,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:37:52,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,286 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:37:52,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:37:52,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:37:52,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:37:52,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (1/1) ... [2024-11-28 04:37:52,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:37:52,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:52,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:37:52,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f87c8-f267-47a8-b17f-583e4f982e85/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:37:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-28 04:37:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-28 04:37:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:37:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:37:52,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:37:52,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:37:52,417 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 04:37:52,563 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:37:52,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:37:52,792 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:37:52,792 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:37:52,872 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:37:52,872 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 04:37:52,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:52 BoogieIcfgContainer [2024-11-28 04:37:52,873 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:37:52,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:37:52,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:37:52,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:37:52,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:37:51" (1/3) ... [2024-11-28 04:37:52,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d15b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:37:52, skipping insertion in model container [2024-11-28 04:37:52,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:52" (2/3) ... [2024-11-28 04:37:52,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d15b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:37:52, skipping insertion in model container [2024-11-28 04:37:52,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:52" (3/3) ... [2024-11-28 04:37:52,890 INFO L128 eAbstractionObserver]: Analyzing ICFG 39_rand_lock_p0_vs-b.i [2024-11-28 04:37:52,912 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:37:52,913 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 39_rand_lock_p0_vs-b.i that has 2 procedures, 77 locations, 1 initial locations, 2 loop locations, and 7 error locations. [2024-11-28 04:37:52,914 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:37:52,990 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:37:53,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 82 transitions, 168 flow [2024-11-28 04:37:53,136 INFO L124 PetriNetUnfolderBase]: 6/90 cut-off events. [2024-11-28 04:37:53,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:37:53,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 6/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 69. Up to 4 conditions per place. [2024-11-28 04:37:53,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 82 transitions, 168 flow [2024-11-28 04:37:53,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 82 transitions, 168 flow [2024-11-28 04:37:53,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:53,204 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;@77ca219a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:53,204 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-28 04:37:53,218 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:37:53,218 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-28 04:37:53,218 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:37:53,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:53,219 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:53,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-28 04:37:53,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:53,227 INFO L85 PathProgramCache]: Analyzing trace with hash -832574833, now seen corresponding path program 1 times [2024-11-28 04:37:53,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:53,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523343545] [2024-11-28 04:37:53,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:53,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:53,370 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:37:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:53,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:37:53,431 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:37:53,434 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-28 04:37:53,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-28 04:37:53,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-28 04:37:53,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-28 04:37:53,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-28 04:37:53,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-28 04:37:53,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-28 04:37:53,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-28 04:37:53,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-28 04:37:53,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-28 04:37:53,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-28 04:37:53,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-28 04:37:53,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-28 04:37:53,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-28 04:37:53,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-28 04:37:53,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:37:53,441 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 04:37:53,450 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:37:53,451 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 04:37:53,534 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:37:53,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 142 transitions, 294 flow [2024-11-28 04:37:53,670 INFO L124 PetriNetUnfolderBase]: 11/160 cut-off events. [2024-11-28 04:37:53,670 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 04:37:53,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 160 events. 11/160 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 309 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 128. Up to 6 conditions per place. [2024-11-28 04:37:53,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 142 transitions, 294 flow [2024-11-28 04:37:53,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 142 transitions, 294 flow [2024-11-28 04:37:53,687 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:53,687 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;@77ca219a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:53,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-28 04:37:53,706 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:37:53,707 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-28 04:37:53,707 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:37:53,707 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:53,707 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] [2024-11-28 04:37:53,707 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 04:37:53,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:53,708 INFO L85 PathProgramCache]: Analyzing trace with hash -525893, now seen corresponding path program 1 times [2024-11-28 04:37:53,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:53,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211221126] [2024-11-28 04:37:53,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:53,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:53,913 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 04:37:53,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:53,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211221126] [2024-11-28 04:37:53,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211221126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:53,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:53,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:53,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845680516] [2024-11-28 04:37:53,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:53,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:53,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:53,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:53,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:54,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 142 [2024-11-28 04:37:54,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 142 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 04:37:54,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:54,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 142 [2024-11-28 04:37:54,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:54,290 INFO L124 PetriNetUnfolderBase]: 83/697 cut-off events. [2024-11-28 04:37:54,290 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-28 04:37:54,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 897 conditions, 697 events. 83/697 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3878 event pairs, 30 based on Foata normal form. 158/798 useless extension candidates. Maximal degree in co-relation 642. Up to 112 conditions per place. [2024-11-28 04:37:54,304 INFO L140 encePairwiseOnDemand]: 112/142 looper letters, 25 selfloop transitions, 10 changer transitions 0/134 dead transitions. [2024-11-28 04:37:54,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 134 transitions, 353 flow [2024-11-28 04:37:54,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:54,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:54,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2024-11-28 04:37:54,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8990610328638498 [2024-11-28 04:37:54,332 INFO L175 Difference]: Start difference. First operand has 138 places, 142 transitions, 294 flow. Second operand 3 states and 383 transitions. [2024-11-28 04:37:54,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 134 transitions, 353 flow [2024-11-28 04:37:54,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 134 transitions, 353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:37:54,351 INFO L231 Difference]: Finished difference. Result has 126 places, 129 transitions, 336 flow [2024-11-28 04:37:54,354 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=126, PETRI_TRANSITIONS=129} [2024-11-28 04:37:54,359 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -12 predicate places. [2024-11-28 04:37:54,359 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 129 transitions, 336 flow [2024-11-28 04:37:54,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 04:37:54,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:54,360 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:54,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:37:54,361 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-28 04:37:54,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:54,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1951692559, now seen corresponding path program 1 times [2024-11-28 04:37:54,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:54,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385984454] [2024-11-28 04:37:54,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:54,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:54,400 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:37:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:54,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:37:54,434 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:37:54,434 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-28 04:37:54,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-28 04:37:54,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-28 04:37:54,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-28 04:37:54,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-28 04:37:54,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-28 04:37:54,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-28 04:37:54,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-28 04:37:54,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-28 04:37:54,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-28 04:37:54,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-28 04:37:54,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-28 04:37:54,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-28 04:37:54,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-28 04:37:54,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-28 04:37:54,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-28 04:37:54,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-28 04:37:54,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-28 04:37:54,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-28 04:37:54,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-28 04:37:54,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-28 04:37:54,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-28 04:37:54,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:37:54,440 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:37:54,441 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:37:54,441 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 04:37:54,509 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:37:54,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 202 transitions, 422 flow [2024-11-28 04:37:54,580 INFO L124 PetriNetUnfolderBase]: 16/230 cut-off events. [2024-11-28 04:37:54,580 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 04:37:54,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 230 events. 16/230 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 630 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 187. Up to 8 conditions per place. [2024-11-28 04:37:54,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 202 transitions, 422 flow [2024-11-28 04:37:54,589 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 202 transitions, 422 flow [2024-11-28 04:37:54,591 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:54,591 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;@77ca219a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:54,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-28 04:37:54,638 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:37:54,639 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-11-28 04:37:54,639 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:37:54,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:54,640 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] [2024-11-28 04:37:54,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 04:37:54,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:54,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1427988992, now seen corresponding path program 1 times [2024-11-28 04:37:54,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:54,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039494364] [2024-11-28 04:37:54,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:54,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:54,743 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 04:37:54,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:54,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039494364] [2024-11-28 04:37:54,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039494364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:54,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:54,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:54,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625380436] [2024-11-28 04:37:54,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:54,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:54,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:54,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:54,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:54,834 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 202 [2024-11-28 04:37:54,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 202 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 04:37:54,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:54,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 202 [2024-11-28 04:37:54,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:37:56,956 INFO L124 PetriNetUnfolderBase]: 1850/8283 cut-off events. [2024-11-28 04:37:56,956 INFO L125 PetriNetUnfolderBase]: For 604/604 co-relation queries the response was YES. [2024-11-28 04:37:57,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11581 conditions, 8283 events. 1850/8283 cut-off events. For 604/604 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 88771 event pairs, 737 based on Foata normal form. 2158/9599 useless extension candidates. Maximal degree in co-relation 7207. Up to 1856 conditions per place. [2024-11-28 04:37:57,054 INFO L140 encePairwiseOnDemand]: 158/202 looper letters, 38 selfloop transitions, 15 changer transitions 0/193 dead transitions. [2024-11-28 04:37:57,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 193 transitions, 522 flow [2024-11-28 04:37:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:57,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:37:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2024-11-28 04:37:57,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8960396039603961 [2024-11-28 04:37:57,061 INFO L175 Difference]: Start difference. First operand has 196 places, 202 transitions, 422 flow. Second operand 3 states and 543 transitions. [2024-11-28 04:37:57,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 193 transitions, 522 flow [2024-11-28 04:37:57,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 193 transitions, 518 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-28 04:37:57,068 INFO L231 Difference]: Finished difference. Result has 178 places, 185 transitions, 488 flow [2024-11-28 04:37:57,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=178, PETRI_TRANSITIONS=185} [2024-11-28 04:37:57,069 INFO L279 CegarLoopForPetriNet]: 196 programPoint places, -18 predicate places. [2024-11-28 04:37:57,072 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 185 transitions, 488 flow [2024-11-28 04:37:57,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 04:37:57,073 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:57,073 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:57,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:37:57,074 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-28 04:37:57,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:57,075 INFO L85 PathProgramCache]: Analyzing trace with hash 483416326, now seen corresponding path program 1 times [2024-11-28 04:37:57,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:57,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197666850] [2024-11-28 04:37:57,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:57,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:57,118 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:37:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:37:57,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:37:57,138 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:37:57,138 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-28 04:37:57,139 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-28 04:37:57,139 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-28 04:37:57,139 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-28 04:37:57,139 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-28 04:37:57,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-28 04:37:57,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2024-11-28 04:37:57,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-28 04:37:57,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-28 04:37:57,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-28 04:37:57,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-28 04:37:57,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-28 04:37:57,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-28 04:37:57,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-28 04:37:57,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-28 04:37:57,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-28 04:37:57,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-28 04:37:57,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-28 04:37:57,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-28 04:37:57,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-28 04:37:57,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-28 04:37:57,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-28 04:37:57,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-28 04:37:57,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-28 04:37:57,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-28 04:37:57,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-28 04:37:57,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-28 04:37:57,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-28 04:37:57,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-28 04:37:57,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:37:57,144 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:37:57,145 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:37:57,148 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 04:37:57,237 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:37:57,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 262 transitions, 552 flow [2024-11-28 04:37:57,313 INFO L124 PetriNetUnfolderBase]: 21/300 cut-off events. [2024-11-28 04:37:57,313 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-28 04:37:57,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 300 events. 21/300 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 984 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 246. Up to 10 conditions per place. [2024-11-28 04:37:57,318 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 262 transitions, 552 flow [2024-11-28 04:37:57,328 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 262 transitions, 552 flow [2024-11-28 04:37:57,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:57,333 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;@77ca219a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:57,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-28 04:37:57,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:37:57,342 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-28 04:37:57,342 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:37:57,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:37:57,342 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] [2024-11-28 04:37:57,342 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:37:57,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:57,343 INFO L85 PathProgramCache]: Analyzing trace with hash 742651265, now seen corresponding path program 1 times [2024-11-28 04:37:57,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:57,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210556176] [2024-11-28 04:37:57,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:57,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:57,432 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 04:37:57,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:57,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210556176] [2024-11-28 04:37:57,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210556176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:57,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:57,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:57,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12986130] [2024-11-28 04:37:57,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:57,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:57,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:57,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:57,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:37:57,531 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 262 [2024-11-28 04:37:57,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 262 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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 04:37:57,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:37:57,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 262 [2024-11-28 04:37:57,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:12,828 INFO L124 PetriNetUnfolderBase]: 31456/99417 cut-off events. [2024-11-28 04:38:12,829 INFO L125 PetriNetUnfolderBase]: For 11679/11679 co-relation queries the response was YES. [2024-11-28 04:38:13,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148900 conditions, 99417 events. 31456/99417 cut-off events. For 11679/11679 co-relation queries the response was YES. Maximal size of possible extension queue 3033. Compared 1437251 event pairs, 13027 based on Foata normal form. 28296/116477 useless extension candidates. Maximal degree in co-relation 87110. Up to 27457 conditions per place. [2024-11-28 04:38:13,999 INFO L140 encePairwiseOnDemand]: 204/262 looper letters, 51 selfloop transitions, 20 changer transitions 0/252 dead transitions. [2024-11-28 04:38:13,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 252 transitions, 695 flow [2024-11-28 04:38:14,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:38:14,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2024-11-28 04:38:14,006 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8944020356234097 [2024-11-28 04:38:14,006 INFO L175 Difference]: Start difference. First operand has 254 places, 262 transitions, 552 flow. Second operand 3 states and 703 transitions. [2024-11-28 04:38:14,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 252 transitions, 695 flow [2024-11-28 04:38:14,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 252 transitions, 683 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-28 04:38:14,042 INFO L231 Difference]: Finished difference. Result has 230 places, 241 transitions, 640 flow [2024-11-28 04:38:14,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=230, PETRI_TRANSITIONS=241} [2024-11-28 04:38:14,043 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -24 predicate places. [2024-11-28 04:38:14,047 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 241 transitions, 640 flow [2024-11-28 04:38:14,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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 04:38:14,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:14,048 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:14,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:38:14,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-28 04:38:14,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:14,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1825200590, now seen corresponding path program 1 times [2024-11-28 04:38:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:14,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838317258] [2024-11-28 04:38:14,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:14,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:38:14,127 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:38:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:38:14,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:38:14,158 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:38:14,159 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-28 04:38:14,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-28 04:38:14,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-28 04:38:14,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-28 04:38:14,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-28 04:38:14,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-28 04:38:14,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2024-11-28 04:38:14,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-28 04:38:14,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-28 04:38:14,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-28 04:38:14,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-28 04:38:14,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-28 04:38:14,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-28 04:38:14,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-28 04:38:14,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-28 04:38:14,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-28 04:38:14,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-28 04:38:14,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-28 04:38:14,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-28 04:38:14,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-28 04:38:14,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-28 04:38:14,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-28 04:38:14,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-28 04:38:14,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-28 04:38:14,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-28 04:38:14,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-28 04:38:14,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-28 04:38:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-28 04:38:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-28 04:38:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-28 04:38:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-28 04:38:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-28 04:38:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-28 04:38:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-28 04:38:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-28 04:38:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-28 04:38:14,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:38:14,165 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:38:14,166 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:38:14,166 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-28 04:38:14,251 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:38:14,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 322 transitions, 684 flow [2024-11-28 04:38:14,364 INFO L124 PetriNetUnfolderBase]: 26/370 cut-off events. [2024-11-28 04:38:14,364 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-28 04:38:14,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 370 events. 26/370 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1339 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 313. Up to 12 conditions per place. [2024-11-28 04:38:14,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 312 places, 322 transitions, 684 flow [2024-11-28 04:38:14,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 322 transitions, 684 flow [2024-11-28 04:38:14,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:38:14,379 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;@77ca219a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:38:14,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-28 04:38:14,382 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:38:14,383 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-28 04:38:14,384 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:38:14,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:14,384 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] [2024-11-28 04:38:14,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-28 04:38:14,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:14,389 INFO L85 PathProgramCache]: Analyzing trace with hash -411989058, now seen corresponding path program 1 times [2024-11-28 04:38:14,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:14,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316058186] [2024-11-28 04:38:14,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:14,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:14,463 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 04:38:14,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:14,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316058186] [2024-11-28 04:38:14,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316058186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:14,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:14,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:14,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9453190] [2024-11-28 04:38:14,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:14,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:14,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:14,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:14,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:14,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 322 [2024-11-28 04:38:14,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 322 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 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 04:38:14,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:14,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 322 [2024-11-28 04:38:14,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand