./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-ext/40_barrier_vf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 01849734 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-ext/40_barrier_vf.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e83225601d835c9b02ede9a5751213533e33817a9795ca1ab6ec7c2abd672056 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-0184973-m [2025-04-24 16:20:44,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 16:20:44,247 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 16:20:44,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 16:20:44,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 16:20:44,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 16:20:44,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 16:20:44,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 16:20:44,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 16:20:44,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 16:20:44,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 16:20:44,276 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:20:44,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:20:44,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 16:20:44,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 16:20:44,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux 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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter 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 -> e83225601d835c9b02ede9a5751213533e33817a9795ca1ab6ec7c2abd672056 [2025-04-24 16:20:44,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 16:20:44,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 16:20:44,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 16:20:44,533 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 16:20:44,533 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 16:20:44,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-ext/40_barrier_vf.i [2025-04-24 16:20:45,890 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/311d0159b/4942569780df49c3a98744907fec9960/FLAG67e3b42e8 [2025-04-24 16:20:46,064 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 16:20:46,065 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf.i [2025-04-24 16:20:46,072 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/311d0159b/4942569780df49c3a98744907fec9960/FLAG67e3b42e8 [2025-04-24 16:20:46,891 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/311d0159b/4942569780df49c3a98744907fec9960 [2025-04-24 16:20:46,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 16:20:46,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 16:20:46,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 16:20:46,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 16:20:46,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 16:20:46,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 04:20:46" (1/1) ... [2025-04-24 16:20:46,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a6b711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:46, skipping insertion in model container [2025-04-24 16:20:46,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 04:20:46" (1/1) ... [2025-04-24 16:20:46,917 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 16:20:47,125 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf.i[30834,30847] [2025-04-24 16:20:47,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 16:20:47,151 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 16:20:47,211 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf.i[30834,30847] [2025-04-24 16:20:47,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 16:20:47,253 INFO L204 MainTranslator]: Completed translation [2025-04-24 16:20:47,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47 WrapperNode [2025-04-24 16:20:47,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 16:20:47,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 16:20:47,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 16:20:47,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 16:20:47,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,278 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,303 INFO L138 Inliner]: procedures = 164, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 166 [2025-04-24 16:20:47,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 16:20:47,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 16:20:47,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 16:20:47,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 16:20:47,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,323 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 16:20:47,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 16:20:47,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 16:20:47,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 16:20:47,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (1/1) ... [2025-04-24 16:20:47,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:20:47,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:20:47,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 16:20:47,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 16:20:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-04-24 16:20:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-04-24 16:20:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-24 16:20:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 16:20:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 16:20:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-24 16:20:47,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 16:20:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 16:20:47,375 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 16:20:47,468 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 16:20:47,469 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 16:20:47,649 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 16:20:47,649 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 16:20:48,231 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 16:20:48,232 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-24 16:20:48,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:20:48 BoogieIcfgContainer [2025-04-24 16:20:48,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 16:20:48,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 16:20:48,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 16:20:48,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 16:20:48,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 04:20:46" (1/3) ... [2025-04-24 16:20:48,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272d46f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 04:20:48, skipping insertion in model container [2025-04-24 16:20:48,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:20:47" (2/3) ... [2025-04-24 16:20:48,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272d46f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 04:20:48, skipping insertion in model container [2025-04-24 16:20:48,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:20:48" (3/3) ... [2025-04-24 16:20:48,240 INFO L128 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2025-04-24 16:20:48,250 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 16:20:48,252 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 40_barrier_vf.i that has 2 procedures, 17 locations, 18 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-24 16:20:48,253 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 16:20:48,286 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-24 16:20:48,309 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:20:48,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 16:20:48,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:20:48,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 16:20:48,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 16:20:48,381 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 16:20:48,392 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2025-04-24 16:20:48,398 INFO L340 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=PARTIAL_ORDER_FA, 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;@3bf229a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:20:48,398 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 16:20:48,432 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:20:48,433 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:48,433 INFO L139 ounterexampleChecker]: Examining path program with hash 338045187, occurence #1 [2025-04-24 16:20:48,433 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:48,434 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:48,437 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:48,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1407944474, now seen corresponding path program 1 times [2025-04-24 16:20:48,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:48,443 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841441415] [2025-04-24 16:20:48,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:48,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:48,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-24 16:20:48,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-24 16:20:48,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:48,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:20:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:20:48,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:20:48,914 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841441415] [2025-04-24 16:20:48,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841441415] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:20:48,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:20:48,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 16:20:48,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912724802] [2025-04-24 16:20:48,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:20:48,920 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:20:48,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:20:48,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:20:48,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:20:48,934 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:48,935 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:20:48,936 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2025-04-24 16:20:48,936 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:48,985 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:48,985 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 16:20:48,985 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:20:48,985 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:48,985 INFO L139 ounterexampleChecker]: Examining path program with hash 846865127, occurence #1 [2025-04-24 16:20:48,986 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:48,986 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:48,986 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:48,986 INFO L85 PathProgramCache]: Analyzing trace with hash 592999674, now seen corresponding path program 1 times [2025-04-24 16:20:48,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:48,986 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792429149] [2025-04-24 16:20:48,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:48,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:49,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-24 16:20:49,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-24 16:20:49,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:49,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:20:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:20:49,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:20:49,262 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792429149] [2025-04-24 16:20:49,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792429149] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:20:49,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:20:49,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 16:20:49,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374761923] [2025-04-24 16:20:49,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:20:49,264 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 16:20:49,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:20:49,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 16:20:49,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-24 16:20:49,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:49,265 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:20:49,265 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-04-24 16:20:49,265 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:49,265 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:49,294 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:49,296 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:20:49,298 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-24 16:20:49,300 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 16:20:49,304 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-24 16:20:49,306 INFO L320 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2025-04-24 16:20:49,309 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:20:49,312 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 16:20:49,313 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 16:20:49,313 INFO L340 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=PARTIAL_ORDER_FA, 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;@3bf229a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:20:49,313 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 16:20:49,323 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:20:49,324 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:49,324 INFO L139 ounterexampleChecker]: Examining path program with hash -1474949380, occurence #1 [2025-04-24 16:20:49,324 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:49,324 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:49,324 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash -119929322, now seen corresponding path program 1 times [2025-04-24 16:20:49,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:49,324 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487302533] [2025-04-24 16:20:49,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:49,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:49,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-24 16:20:49,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-24 16:20:49,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:49,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:20:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:20:49,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:20:49,490 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487302533] [2025-04-24 16:20:49,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487302533] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:20:49,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:20:49,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 16:20:49,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977471102] [2025-04-24 16:20:49,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:20:49,490 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:20:49,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:20:49,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:20:49,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:20:49,490 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:49,490 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:20:49,491 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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) [2025-04-24 16:20:49,491 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:49,514 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:49,514 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 16:20:49,514 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:20:49,514 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:49,514 INFO L139 ounterexampleChecker]: Examining path program with hash 513149341, occurence #1 [2025-04-24 16:20:49,514 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:49,514 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:49,515 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:49,515 INFO L85 PathProgramCache]: Analyzing trace with hash -695651506, now seen corresponding path program 1 times [2025-04-24 16:20:49,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:49,515 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252352877] [2025-04-24 16:20:49,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:49,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:49,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-24 16:20:49,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-24 16:20:49,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:49,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 16:20:49,613 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-24 16:20:49,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-24 16:20:49,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-24 16:20:49,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:49,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 16:20:49,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-24 16:20:49,656 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-24 16:20:49,656 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-04-24 16:20:49,656 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-24 16:20:49,659 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-24 16:20:49,659 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2025-04-24 16:20:49,659 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-04-24 16:20:49,659 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-04-24 16:20:49,677 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-24 16:20:49,680 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:20:49,685 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 16:20:49,685 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 16:20:49,685 INFO L340 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=PARTIAL_ORDER_FA, 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;@3bf229a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:20:49,685 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 16:20:49,731 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:20:49,731 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:49,731 INFO L139 ounterexampleChecker]: Examining path program with hash -1738146064, occurence #1 [2025-04-24 16:20:49,731 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:49,731 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:49,731 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -975858978, now seen corresponding path program 1 times [2025-04-24 16:20:49,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:49,732 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658276067] [2025-04-24 16:20:49,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:49,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:49,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-24 16:20:49,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-24 16:20:49,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:49,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:20:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:20:49,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:20:49,988 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658276067] [2025-04-24 16:20:49,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658276067] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:20:49,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:20:49,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 16:20:49,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989317516] [2025-04-24 16:20:49,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:20:49,989 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:20:49,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:20:49,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:20:49,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:20:49,990 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:49,990 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:20:49,990 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2025-04-24 16:20:49,990 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:50,066 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:50,066 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 16:20:50,066 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:20:50,066 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:50,066 INFO L139 ounterexampleChecker]: Examining path program with hash -1746915668, occurence #1 [2025-04-24 16:20:50,066 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:50,066 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:50,067 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:50,067 INFO L85 PathProgramCache]: Analyzing trace with hash -500736449, now seen corresponding path program 1 times [2025-04-24 16:20:50,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:50,067 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673814616] [2025-04-24 16:20:50,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:50,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:50,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-24 16:20:50,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-24 16:20:50,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:50,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:20:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:20:50,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:20:50,245 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673814616] [2025-04-24 16:20:50,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673814616] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:20:50,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:20:50,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 16:20:50,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602869496] [2025-04-24 16:20:50,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:20:50,246 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:20:50,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:20:50,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:20:50,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:20:50,247 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:50,247 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:20:50,247 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2025-04-24 16:20:50,247 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:50,247 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:50,276 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:50,276 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:50,276 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-24 16:20:50,276 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:20:50,276 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:50,277 INFO L139 ounterexampleChecker]: Examining path program with hash -174996928, occurence #1 [2025-04-24 16:20:50,277 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:50,277 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:50,277 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:50,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1747626051, now seen corresponding path program 1 times [2025-04-24 16:20:50,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:50,277 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885655822] [2025-04-24 16:20:50,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:50,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:50,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-24 16:20:50,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-24 16:20:50,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:50,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 16:20:50,350 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-24 16:20:50,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-24 16:20:50,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-24 16:20:50,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:50,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 16:20:50,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-24 16:20:50,393 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-24 16:20:50,393 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-04-24 16:20:50,393 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-24 16:20:50,394 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-24 16:20:50,395 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2025-04-24 16:20:50,395 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-04-24 16:20:50,395 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-04-24 16:20:50,410 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-24 16:20:50,412 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:20:50,417 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 16:20:50,418 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2025-04-24 16:20:50,418 INFO L340 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=PARTIAL_ORDER_FA, 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;@3bf229a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:20:50,418 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 16:20:50,465 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:20:50,466 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:50,467 INFO L139 ounterexampleChecker]: Examining path program with hash 1143492983, occurence #1 [2025-04-24 16:20:50,467 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:50,468 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:50,468 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:50,468 INFO L85 PathProgramCache]: Analyzing trace with hash -352862165, now seen corresponding path program 1 times [2025-04-24 16:20:50,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:50,468 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238089353] [2025-04-24 16:20:50,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:50,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:50,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-24 16:20:50,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-24 16:20:50,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:50,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:20:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:20:50,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:20:50,616 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238089353] [2025-04-24 16:20:50,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238089353] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:20:50,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:20:50,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 16:20:50,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620175174] [2025-04-24 16:20:50,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:20:50,617 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:20:50,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:20:50,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:20:50,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:20:50,617 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:50,618 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:20:50,618 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2025-04-24 16:20:50,618 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:50,911 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:50,911 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-24 16:20:50,911 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:20:50,911 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:50,911 INFO L139 ounterexampleChecker]: Examining path program with hash 542863260, occurence #1 [2025-04-24 16:20:50,911 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:50,911 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:50,912 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1296001685, now seen corresponding path program 1 times [2025-04-24 16:20:50,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:50,912 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50874834] [2025-04-24 16:20:50,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:50,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:50,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-24 16:20:50,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-24 16:20:50,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:50,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:20:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:20:51,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:20:51,046 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50874834] [2025-04-24 16:20:51,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50874834] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:20:51,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:20:51,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 16:20:51,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787921447] [2025-04-24 16:20:51,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:20:51,047 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:20:51,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:20:51,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:20:51,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:20:51,048 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:51,049 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:20:51,049 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2025-04-24 16:20:51,049 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:51,049 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:20:51,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:51,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:20:51,135 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-24 16:20:51,135 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:20:51,135 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:20:51,135 INFO L139 ounterexampleChecker]: Examining path program with hash 1819760872, occurence #1 [2025-04-24 16:20:51,135 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:20:51,136 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:20:51,136 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:20:51,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1246047398, now seen corresponding path program 1 times [2025-04-24 16:20:51,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:20:51,136 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588420059] [2025-04-24 16:20:51,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:20:51,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:20:51,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-24 16:20:51,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-24 16:20:51,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:51,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 16:20:51,242 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-24 16:20:51,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-24 16:20:51,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-24 16:20:51,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:20:51,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 16:20:51,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-24 16:20:51,277 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-24 16:20:51,277 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-24 16:20:51,277 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-24 16:20:51,278 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-24 16:20:51,279 INFO L320 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was UNSAFE (1/4) [2025-04-24 16:20:51,337 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2025-04-24 16:20:51,337 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 16:20:51,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-24 16:20:51,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 04:20:51 BasicIcfg [2025-04-24 16:20:51,349 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 16:20:51,350 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 16:20:51,350 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 16:20:51,350 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 16:20:51,351 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:20:48" (3/4) ... [2025-04-24 16:20:51,351 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-24 16:20:51,408 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 13. [2025-04-24 16:20:51,442 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 16:20:51,442 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 16:20:51,443 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 16:20:51,443 INFO L158 Benchmark]: Toolchain (without parser) took 4548.74ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 91.4MB in the beginning and 117.9MB in the end (delta: -26.5MB). Peak memory consumption was 128.9MB. Max. memory is 16.1GB. [2025-04-24 16:20:51,443 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 83.9MB. Free memory was 60.7MB in the beginning and 60.6MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 16:20:51,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.35ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 68.6MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-24 16:20:51,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.06ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 66.1MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 16:20:51,444 INFO L158 Benchmark]: Boogie Preprocessor took 30.23ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 64.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 16:20:51,444 INFO L158 Benchmark]: RCFGBuilder took 897.47ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 63.6MB in the end (delta: 692.9kB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2025-04-24 16:20:51,444 INFO L158 Benchmark]: TraceAbstraction took 3116.00ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 63.3MB in the beginning and 134.3MB in the end (delta: -70.9MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. [2025-04-24 16:20:51,444 INFO L158 Benchmark]: Witness Printer took 92.80ms. Allocated memory is still 276.8MB. Free memory was 134.3MB in the beginning and 117.9MB in the end (delta: 16.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-24 16:20:51,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 83.9MB. Free memory was 60.7MB in the beginning and 60.6MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.35ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 68.6MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.06ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 66.1MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.23ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 64.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 897.47ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 63.6MB in the end (delta: 692.9kB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3116.00ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 63.3MB in the beginning and 134.3MB in the end (delta: -70.9MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. * Witness Printer took 92.80ms. Allocated memory is still 276.8MB. Free memory was 134.3MB in the beginning and 117.9MB in the end (delta: 16.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 245, independent: 218, independent conditional: 73, independent unconditional: 145, dependent: 27, dependent conditional: 25, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 73, independent unconditional: 145, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 73, independent unconditional: 145, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 73, independent unconditional: 145, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 220, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 119, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 119, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 220, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 119, unknown conditional: 0, unknown unconditional: 119] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 73, Maximal queried relation: 0, Independence queries for same thread: 25, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 28, Number of trivial persistent sets: 15, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 147, independent: 145, independent conditional: 0, independent unconditional: 145, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 245, independent: 218, independent conditional: 73, independent unconditional: 145, dependent: 27, dependent conditional: 25, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 73, independent unconditional: 145, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 73, independent unconditional: 145, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 73, independent unconditional: 145, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 220, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 119, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 119, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 220, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 119, unknown conditional: 0, unknown unconditional: 119] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 73, Maximal queried relation: 0, Independence queries for same thread: 25 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 164, independent: 154, independent conditional: 25, independent unconditional: 129, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 155, independent: 154, independent conditional: 25, independent unconditional: 129, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 155, independent: 154, independent conditional: 25, independent unconditional: 129, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 155, independent: 154, independent conditional: 25, independent unconditional: 129, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 155, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 155, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 155, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 25, Maximal queried relation: 0, Independence queries for same thread: 9, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 18, Number of trivial persistent sets: 16, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, independent: 129, independent conditional: 0, independent unconditional: 129, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 164, independent: 154, independent conditional: 25, independent unconditional: 129, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 155, independent: 154, independent conditional: 25, independent unconditional: 129, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 155, independent: 154, independent conditional: 25, independent unconditional: 129, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 155, independent: 154, independent conditional: 25, independent unconditional: 129, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 155, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 155, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 155, independent: 154, independent conditional: 0, independent unconditional: 154, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 25, Maximal queried relation: 0, Independence queries for same thread: 9 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 662, independent: 601, independent conditional: 122, independent unconditional: 479, dependent: 61, dependent conditional: 44, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 620, independent: 601, independent conditional: 122, independent unconditional: 479, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 620, independent: 601, independent conditional: 122, independent unconditional: 479, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 623, independent: 601, independent conditional: 122, independent unconditional: 479, dependent: 22, dependent conditional: 5, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 623, independent: 601, independent conditional: 0, independent unconditional: 601, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 623, independent: 601, independent conditional: 0, independent unconditional: 601, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 444, independent: 425, independent conditional: 0, independent unconditional: 425, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 444, independent: 408, independent conditional: 0, independent unconditional: 408, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 36, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 36, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 26, dependent conditional: 3, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 623, independent: 176, independent conditional: 0, independent unconditional: 176, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 444, unknown conditional: 2, unknown unconditional: 442] , Statistics on independence cache: Total cache size (in pairs): 563, Positive cache size: 542, Positive conditional cache size: 0, Positive unconditional cache size: 542, Negative cache size: 21, Negative conditional cache size: 2, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 125, Maximal queried relation: 2, Independence queries for same thread: 42, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 47, Number of trivial persistent sets: 39, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 496, independent: 479, independent conditional: 0, independent unconditional: 479, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 662, independent: 601, independent conditional: 122, independent unconditional: 479, dependent: 61, dependent conditional: 44, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 620, independent: 601, independent conditional: 122, independent unconditional: 479, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 620, independent: 601, independent conditional: 122, independent unconditional: 479, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 623, independent: 601, independent conditional: 122, independent unconditional: 479, dependent: 22, dependent conditional: 5, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 623, independent: 601, independent conditional: 0, independent unconditional: 601, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 623, independent: 601, independent conditional: 0, independent unconditional: 601, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 444, independent: 425, independent conditional: 0, independent unconditional: 425, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 444, independent: 408, independent conditional: 0, independent unconditional: 408, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 36, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 36, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 19, dependent conditional: 2, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 26, dependent conditional: 3, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 623, independent: 176, independent conditional: 0, independent unconditional: 176, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 444, unknown conditional: 2, unknown unconditional: 442] , Statistics on independence cache: Total cache size (in pairs): 563, Positive cache size: 542, Positive conditional cache size: 0, Positive unconditional cache size: 542, Negative cache size: 21, Negative conditional cache size: 2, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 125, Maximal queried relation: 2, Independence queries for same thread: 42 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5605, independent: 4690, independent conditional: 3522, independent unconditional: 1168, dependent: 915, dependent conditional: 863, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5004, independent: 4690, independent conditional: 3522, independent unconditional: 1168, dependent: 314, dependent conditional: 262, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5004, independent: 4690, independent conditional: 3522, independent unconditional: 1168, dependent: 314, dependent conditional: 262, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5279, independent: 4690, independent conditional: 3522, independent unconditional: 1168, dependent: 589, dependent conditional: 537, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5279, independent: 4690, independent conditional: 0, independent unconditional: 4690, dependent: 589, dependent conditional: 16, dependent unconditional: 573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5279, independent: 4690, independent conditional: 0, independent unconditional: 4690, dependent: 589, dependent conditional: 16, dependent unconditional: 573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1065, independent: 1001, independent conditional: 0, independent unconditional: 1001, dependent: 64, dependent conditional: 12, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1065, independent: 956, independent conditional: 0, independent unconditional: 956, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 109, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 64, dependent conditional: 12, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 109, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 64, dependent conditional: 12, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 67, dependent conditional: 14, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 5279, independent: 3689, independent conditional: 0, independent unconditional: 3689, dependent: 525, dependent conditional: 4, dependent unconditional: 521, unknown: 1065, unknown conditional: 12, unknown unconditional: 1053] , Statistics on independence cache: Total cache size (in pairs): 1626, Positive cache size: 1543, Positive conditional cache size: 0, Positive unconditional cache size: 1543, Negative cache size: 83, Negative conditional cache size: 12, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4043, Maximal queried relation: 2, Independence queries for same thread: 601, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 458, Number of trivial persistent sets: 420, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1220, independent: 1168, independent conditional: 0, independent unconditional: 1168, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5605, independent: 4690, independent conditional: 3522, independent unconditional: 1168, dependent: 915, dependent conditional: 863, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5004, independent: 4690, independent conditional: 3522, independent unconditional: 1168, dependent: 314, dependent conditional: 262, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5004, independent: 4690, independent conditional: 3522, independent unconditional: 1168, dependent: 314, dependent conditional: 262, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5279, independent: 4690, independent conditional: 3522, independent unconditional: 1168, dependent: 589, dependent conditional: 537, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5279, independent: 4690, independent conditional: 0, independent unconditional: 4690, dependent: 589, dependent conditional: 16, dependent unconditional: 573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5279, independent: 4690, independent conditional: 0, independent unconditional: 4690, dependent: 589, dependent conditional: 16, dependent unconditional: 573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1065, independent: 1001, independent conditional: 0, independent unconditional: 1001, dependent: 64, dependent conditional: 12, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1065, independent: 956, independent conditional: 0, independent unconditional: 956, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 109, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 64, dependent conditional: 12, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 109, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 64, dependent conditional: 12, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 67, dependent conditional: 14, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 5279, independent: 3689, independent conditional: 0, independent unconditional: 3689, dependent: 525, dependent conditional: 4, dependent unconditional: 521, unknown: 1065, unknown conditional: 12, unknown unconditional: 1053] , Statistics on independence cache: Total cache size (in pairs): 1626, Positive cache size: 1543, Positive conditional cache size: 0, Positive unconditional cache size: 1543, Negative cache size: 83, Negative conditional cache size: 12, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4043, Maximal queried relation: 2, Independence queries for same thread: 601 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L687] 0 volatile unsigned int count = 0; [L688] 0 pthread_mutex_t MTX = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L689] 0 _Bool COND = 0; [L690] 0 pthread_cond_t CONDVAR = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L708] 0 pthread_t t; VAL [COND=0, MTX={3:0}, count=0] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX={3:0}, count=0, t=-4] [L703] CALL 1 Barrier2() [L693] 1 count++ VAL [COND=0, MTX={3:0}, count=1] [L694] COND FALSE 1 !(count == 3) VAL [COND=0, MTX={3:0}, count=1] [L699] COND TRUE 1 !COND VAL [COND=0, MTX={3:0}, count=1] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX={3:0}, count=1, t=-3] [L703] CALL 2 Barrier2() [L699] COND TRUE 1 !COND VAL [COND=0, MTX={3:0}, count=1] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX={3:0}, count=1, t=-2] [L703] CALL 3 Barrier2() [L699] COND TRUE 1 !COND VAL [COND=0, MTX={3:0}, count=1] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX={3:0}, count=1, t=-1] [L699] COND TRUE 1 !COND VAL [COND=0, MTX={3:0}, count=1] [L693] 2 count++ VAL [COND=0, MTX={3:0}, count=2] [L694] COND FALSE 2 !(count == 3) VAL [COND=0, MTX={3:0}, count=2] [L699] COND TRUE 2 !COND VAL [COND=0, MTX={3:0}, count=2] [L693] 3 count++ VAL [COND=0, MTX={3:0}, count=3] [L694] COND TRUE 3 count == 3 [L695] 3 COND = 1 [L697] 3 count = 0 VAL [COND=1, MTX={3:0}, count=0] [L703] RET 3 Barrier2() [L704] 3 reach_error() VAL [COND=1, MTX={3:0}, \at(arg, Pre)={0:0}, arg={0:0}, count=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 30 locations, 33 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 30 locations, 33 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 2 thread instances CFG has 4 procedures, 42 locations, 47 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread3of3ForFork0 with 1 thread instances CFG has 5 procedures, 54 locations, 61 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2025-04-24 16:20:51,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE