./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 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/singleton_with-uninit-problems.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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 09:56:16,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 09:56:16,114 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 09:56:16,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 09:56:16,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 09:56:16,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 09:56:16,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 09:56:16,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 09:56:16,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 09:56:16,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 09:56:16,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 09:56:16,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 09:56:16,136 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 09:56:16,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 09:56:16,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 09:56:16,137 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 09:56:16,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 09:56:16,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 09:56:16,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 09:56:16,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 09:56:16,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 09:56:16,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 09:56:16,139 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 09:56:16,139 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 -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-03-19 09:56:16,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 09:56:16,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 09:56:16,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 09:56:16,388 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 09:56:16,388 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 09:56:16,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2025-03-19 09:56:17,629 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fb9995524/378292163ca64ea3aed1a5ed6295ddbe/FLAGd241d8a57 [2025-03-19 09:56:17,861 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 09:56:17,862 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2025-03-19 09:56:17,872 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fb9995524/378292163ca64ea3aed1a5ed6295ddbe/FLAGd241d8a57 [2025-03-19 09:56:18,680 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fb9995524/378292163ca64ea3aed1a5ed6295ddbe [2025-03-19 09:56:18,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 09:56:18,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 09:56:18,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 09:56:18,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 09:56:18,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 09:56:18,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 09:56:18" (1/1) ... [2025-03-19 09:56:18,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282899ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:18, skipping insertion in model container [2025-03-19 09:56:18,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 09:56:18" (1/1) ... [2025-03-19 09:56:18,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 09:56:19,034 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2025-03-19 09:56:19,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 09:56:19,059 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 09:56:19,114 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2025-03-19 09:56:19,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 09:56:19,169 INFO L204 MainTranslator]: Completed translation [2025-03-19 09:56:19,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19 WrapperNode [2025-03-19 09:56:19,169 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 09:56:19,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 09:56:19,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 09:56:19,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 09:56:19,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,195 INFO L138 Inliner]: procedures = 323, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2025-03-19 09:56:19,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 09:56:19,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 09:56:19,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 09:56:19,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 09:56:19,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,206 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 09:56:19,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 09:56:19,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 09:56:19,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 09:56:19,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (1/1) ... [2025-03-19 09:56:19,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 09:56:19,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 09:56:19,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-19 09:56:19,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-19 09:56:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-19 09:56:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-19 09:56:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-19 09:56:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2025-03-19 09:56:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2025-03-19 09:56:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-19 09:56:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-19 09:56:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-19 09:56:19,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-19 09:56:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-19 09:56:19,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-19 09:56:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-19 09:56:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-19 09:56:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 09:56:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 09:56:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 09:56:19,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 09:56:19,262 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 09:56:19,354 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 09:56:19,355 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 09:56:19,459 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 09:56:19,459 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 09:56:19,550 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 09:56:19,551 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 09:56:19,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 09:56:19 BoogieIcfgContainer [2025-03-19 09:56:19,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 09:56:19,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 09:56:19,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 09:56:19,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 09:56:19,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 09:56:18" (1/3) ... [2025-03-19 09:56:19,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5daf36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 09:56:19, skipping insertion in model container [2025-03-19 09:56:19,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 09:56:19" (2/3) ... [2025-03-19 09:56:19,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5daf36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 09:56:19, skipping insertion in model container [2025-03-19 09:56:19,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 09:56:19" (3/3) ... [2025-03-19 09:56:19,561 INFO L128 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2025-03-19 09:56:19,571 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 09:56:19,572 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG singleton_with-uninit-problems.i that has 5 procedures, 39 locations, 35 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-19 09:56:19,572 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 09:56:19,640 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2025-03-19 09:56:19,669 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 09:56:19,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 09:56:19,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 09:56:19,671 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) [2025-03-19 09:56:19,672 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 [2025-03-19 09:56:19,738 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 09:56:19,746 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 09:56:19,754 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;@754ceed2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 09:56:19,755 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-19 09:56:20,898 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 09:56:20,901 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 09:56:20,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1373960454, now seen corresponding path program 1 times [2025-03-19 09:56:20,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 09:56:20,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632791249] [2025-03-19 09:56:20,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 09:56:20,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 09:56:20,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-19 09:56:20,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-19 09:56:20,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 09:56:20,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 09:56:21,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 09:56:21,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 09:56:21,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632791249] [2025-03-19 09:56:21,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632791249] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 09:56:21,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 09:56:21,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-19 09:56:21,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349770076] [2025-03-19 09:56:21,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 09:56:21,412 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 09:56:21,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 09:56:21,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 09:56:21,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-19 09:56:21,428 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 09:56:21,430 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 09:56:21,431 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2025-03-19 09:56:21,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 09:56:21,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 09:56:21,564 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 09:56:21,564 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 09:56:21,565 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 09:56:21,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1183192826, now seen corresponding path program 2 times [2025-03-19 09:56:21,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 09:56:21,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021358746] [2025-03-19 09:56:21,565 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 09:56:21,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 09:56:21,574 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 1 equivalence classes. [2025-03-19 09:56:21,579 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-19 09:56:21,580 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-19 09:56:21,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 09:56:21,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 09:56:21,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 09:56:21,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021358746] [2025-03-19 09:56:21,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021358746] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 09:56:21,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 09:56:21,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-19 09:56:21,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65449640] [2025-03-19 09:56:21,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 09:56:21,757 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 09:56:21,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 09:56:21,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 09:56:21,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-19 09:56:21,758 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 09:56:21,758 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 09:56:21,759 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2025-03-19 09:56:21,759 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 09:56:21,759 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 09:56:22,227 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 09:56:22,227 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 09:56:22,229 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-03-19 09:56:22,229 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-03-19 09:56:22,229 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 09:56:22,234 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-03-19 09:56:22,235 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (1/2) [2025-03-19 09:56:22,238 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 09:56:22,240 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 09:56:22,240 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread0Thread1of1ForFork4 ======== [2025-03-19 09:56:22,241 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;@754ceed2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 09:56:22,242 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-19 09:56:22,250 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2025-03-19 09:56:22,251 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-03-19 09:56:22,251 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-19 09:56:22,251 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-19 09:56:22,251 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-19 09:56:22,251 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-03-19 09:56:22,252 INFO L320 ceAbstractionStarter]: Result for error location thread0Thread1of1ForFork4 was SAFE,SAFE,SAFE,SAFE,SAFE (2/2) [2025-03-19 09:56:22,252 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-19 09:56:22,252 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-19 09:56:22,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-03-19 09:56:22,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 09:56:22 BasicIcfg [2025-03-19 09:56:22,263 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-19 09:56:22,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-19 09:56:22,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-19 09:56:22,263 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-19 09:56:22,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 09:56:19" (3/4) ... [2025-03-19 09:56:22,265 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-19 09:56:22,268 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2025-03-19 09:56:22,268 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-19 09:56:22,268 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-19 09:56:22,268 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-19 09:56:22,271 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2025-03-19 09:56:22,271 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-19 09:56:22,272 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-19 09:56:22,272 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-19 09:56:22,328 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-19 09:56:22,328 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-19 09:56:22,328 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-19 09:56:22,329 INFO L158 Benchmark]: Toolchain (without parser) took 3646.28ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 81.9MB in the beginning and 62.2MB in the end (delta: 19.7MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2025-03-19 09:56:22,329 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 09:56:22,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.87ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 46.6MB in the end (delta: 35.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-19 09:56:22,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.31ms. Allocated memory is still 109.1MB. Free memory was 46.6MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-19 09:56:22,330 INFO L158 Benchmark]: Boogie Preprocessor took 18.15ms. Allocated memory is still 109.1MB. Free memory was 44.6MB in the beginning and 43.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 09:56:22,330 INFO L158 Benchmark]: RCFGBuilder took 336.36ms. Allocated memory is still 109.1MB. Free memory was 43.4MB in the beginning and 68.0MB in the end (delta: -24.6MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2025-03-19 09:56:22,330 INFO L158 Benchmark]: TraceAbstraction took 2710.19ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 67.4MB in the beginning and 66.9MB in the end (delta: 543.0kB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2025-03-19 09:56:22,330 INFO L158 Benchmark]: Witness Printer took 65.44ms. Allocated memory is still 142.6MB. Free memory was 66.9MB in the beginning and 62.2MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 09:56:22,331 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.87ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 46.6MB in the end (delta: 35.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.31ms. Allocated memory is still 109.1MB. Free memory was 46.6MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.15ms. Allocated memory is still 109.1MB. Free memory was 44.6MB in the beginning and 43.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.36ms. Allocated memory is still 109.1MB. Free memory was 43.4MB in the beginning and 68.0MB in the end (delta: -24.6MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2710.19ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 67.4MB in the beginning and 66.9MB in the end (delta: 543.0kB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Witness Printer took 65.44ms. Allocated memory is still 142.6MB. Free memory was 66.9MB in the beginning and 62.2MB in the end (delta: 4.7MB). There was no memory consumed. 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: 10033, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 230, dependent conditional: 197, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9959, independent: 9803, independent conditional: 0, independent unconditional: 9803, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2479, independent: 2446, independent conditional: 0, independent unconditional: 2446, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2479, independent: 2435, independent conditional: 0, independent unconditional: 2435, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 44, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1071, independent: 139, independent conditional: 0, independent unconditional: 139, dependent: 932, dependent conditional: 0, dependent unconditional: 932, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 9959, independent: 7357, independent conditional: 0, independent unconditional: 7357, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 2479, unknown conditional: 0, unknown unconditional: 2479] , Statistics on independence cache: Total cache size (in pairs): 2479, Positive cache size: 2446, Positive conditional cache size: 0, Positive unconditional cache size: 2446, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 74, Persistent sets #1 benchmarks: Persistent set computation time: 1.3s, Number of persistent set computation: 1548, Number of trivial persistent sets: 1543, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10033, independent: 9803, independent conditional: 7357, independent unconditional: 2446, dependent: 230, dependent conditional: 197, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9959, independent: 9803, independent conditional: 0, independent unconditional: 9803, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2479, independent: 2446, independent conditional: 0, independent unconditional: 2446, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2479, independent: 2435, independent conditional: 0, independent unconditional: 2435, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 44, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1071, independent: 139, independent conditional: 0, independent unconditional: 139, dependent: 932, dependent conditional: 0, dependent unconditional: 932, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 9959, independent: 7357, independent conditional: 0, independent unconditional: 7357, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 2479, unknown conditional: 0, unknown unconditional: 2479] , Statistics on independence cache: Total cache size (in pairs): 2479, Positive cache size: 2446, Positive conditional cache size: 0, Positive unconditional cache size: 2446, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 74 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1276, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, 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: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2479, Positive cache size: 2446, Positive conditional cache size: 0, Positive unconditional cache size: 2446, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 1, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 18, Number of trivial persistent sets: 6, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1276, independent: 1256, independent conditional: 48, independent unconditional: 1208, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, 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: 1275, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2479, Positive cache size: 2446, Positive conditional cache size: 0, Positive unconditional cache size: 2446, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 1 - PositiveResult [Line: 1123]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 11 procedures, 87 locations, 109 edges, 12 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.7s, 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: 8, 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, 0.6s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 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: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread0Thread1of1ForFork4 with 1 thread instances CFG has 11 procedures, 87 locations, 109 edges, 12 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, 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: 0, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-19 09:56:22,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE