./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 16:28:30,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 16:28:30,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 16:28:30,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 16:28:30,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 16:28:30,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 16:28:30,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 16:28:30,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 16:28:30,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 16:28:30,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 16:28:30,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 16:28:30,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 16:28:30,351 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 16:28:30,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 16:28:30,352 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 16:28:30,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 16:28:30,353 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 16:28:30,353 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 16:28:30,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 16:28:30,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 16:28:30,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 16:28:30,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 16:28:30,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 16:28:30,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 16:28:30,354 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 16:28:30,355 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 16:28:30,355 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-jdk21/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 -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 16:28:30,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 16:28:30,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 16:28:30,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 16:28:30,606 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 16:28:30,606 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 16:28:30,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2025-01-23 16:28:31,767 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/e12608500/0cb21bcee9344f3fb0f5ed123b091de6/FLAGf4ca338fb [2025-01-23 16:28:31,925 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 16:28:31,925 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2025-01-23 16:28:31,937 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/e12608500/0cb21bcee9344f3fb0f5ed123b091de6/FLAGf4ca338fb [2025-01-23 16:28:31,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/e12608500/0cb21bcee9344f3fb0f5ed123b091de6 [2025-01-23 16:28:31,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 16:28:31,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 16:28:31,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 16:28:31,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 16:28:31,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 16:28:31,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 04:28:31" (1/1) ... [2025-01-23 16:28:31,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f29722b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:31, skipping insertion in model container [2025-01-23 16:28:31,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 04:28:31" (1/1) ... [2025-01-23 16:28:31,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 16:28:32,091 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-wmm/safe032_tso.i[945,958] [2025-01-23 16:28:32,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 16:28:32,218 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 16:28:32,254 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-wmm/safe032_tso.i[945,958] [2025-01-23 16:28:32,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 16:28:32,309 INFO L204 MainTranslator]: Completed translation [2025-01-23 16:28:32,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32 WrapperNode [2025-01-23 16:28:32,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 16:28:32,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 16:28:32,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 16:28:32,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 16:28:32,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,343 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2025-01-23 16:28:32,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 16:28:32,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 16:28:32,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 16:28:32,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 16:28:32,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,358 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 16:28:32,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 16:28:32,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 16:28:32,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 16:28:32,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (1/1) ... [2025-01-23 16:28:32,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 16:28:32,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 16:28:32,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 16:28:32,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 16:28:32,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 16:28:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 16:28:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-01-23 16:28:32,413 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-01-23 16:28:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-01-23 16:28:32,413 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-01-23 16:28:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-01-23 16:28:32,413 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-01-23 16:28:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 16:28:32,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 16:28:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 16:28:32,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 16:28:32,415 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 16:28:32,512 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 16:28:32,514 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 16:28:32,625 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 16:28:32,625 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 16:28:32,675 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 16:28:32,675 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 16:28:32,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:28:32 BoogieIcfgContainer [2025-01-23 16:28:32,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 16:28:32,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 16:28:32,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 16:28:32,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 16:28:32,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 04:28:31" (1/3) ... [2025-01-23 16:28:32,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb8edbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 04:28:32, skipping insertion in model container [2025-01-23 16:28:32,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:28:32" (2/3) ... [2025-01-23 16:28:32,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb8edbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 04:28:32, skipping insertion in model container [2025-01-23 16:28:32,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:28:32" (3/3) ... [2025-01-23 16:28:32,685 INFO L128 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2025-01-23 16:28:32,696 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 16:28:32,698 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe032_tso.i that has 4 procedures, 40 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-23 16:28:32,698 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 16:28:32,750 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-23 16:28:32,783 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 16:28:32,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 16:28:32,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 16:28:32,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 16:28:32,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 16:28:32,876 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 16:28:32,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 16:28:32,921 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@302e0ae1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 16:28:32,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-23 16:28:33,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-23 16:28:33,340 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 16:28:33,340 INFO L139 ounterexampleChecker]: Examining path program with hash 1834181243, occurence #1 [2025-01-23 16:28:33,340 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 16:28:33,340 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 16:28:33,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 16:28:33,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1242965446, now seen corresponding path program 1 times [2025-01-23 16:28:33,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 16:28:33,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999665951] [2025-01-23 16:28:33,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 16:28:33,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 16:28:33,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-23 16:28:33,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-23 16:28:33,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 16:28:33,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 16:28:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 16:28:33,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 16:28:33,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999665951] [2025-01-23 16:28:33,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999665951] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 16:28:33,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 16:28:33,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 16:28:33,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382062951] [2025-01-23 16:28:33,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 16:28:33,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 16:28:33,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 16:28:33,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 16:28:33,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-23 16:28:33,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 16:28:33,799 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 16:28:33,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2025-01-23 16:28:33,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 16:28:34,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 16:28:34,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 16:28:34,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-23 16:28:34,006 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 16:28:34,006 INFO L139 ounterexampleChecker]: Examining path program with hash 1465270622, occurence #1 [2025-01-23 16:28:34,006 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 16:28:34,006 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 16:28:34,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 16:28:34,007 INFO L85 PathProgramCache]: Analyzing trace with hash -97945885, now seen corresponding path program 1 times [2025-01-23 16:28:34,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 16:28:34,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483080203] [2025-01-23 16:28:34,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 16:28:34,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 16:28:34,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-23 16:28:34,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-23 16:28:34,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 16:28:34,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 16:28:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 16:28:34,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 16:28:34,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483080203] [2025-01-23 16:28:34,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483080203] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 16:28:34,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 16:28:34,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-23 16:28:34,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028806716] [2025-01-23 16:28:34,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 16:28:34,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 16:28:34,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 16:28:34,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 16:28:34,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-23 16:28:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 16:28:34,265 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 16:28:34,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2025-01-23 16:28:34,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 16:28:34,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 16:28:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 16:28:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 16:28:34,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 16:28:34,481 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-23 16:28:34,481 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 16:28:34,481 INFO L139 ounterexampleChecker]: Examining path program with hash 1440891595, occurence #1 [2025-01-23 16:28:34,481 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 16:28:34,481 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 16:28:34,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 16:28:34,482 INFO L85 PathProgramCache]: Analyzing trace with hash -218203281, now seen corresponding path program 2 times [2025-01-23 16:28:34,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 16:28:34,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735399570] [2025-01-23 16:28:34,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 16:28:34,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 16:28:34,487 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-01-23 16:28:34,492 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-23 16:28:34,493 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 16:28:34,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 16:28:34,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 16:28:34,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 16:28:34,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735399570] [2025-01-23 16:28:34,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735399570] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 16:28:34,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 16:28:34,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-23 16:28:34,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363941720] [2025-01-23 16:28:34,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 16:28:34,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 16:28:34,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 16:28:34,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 16:28:34,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-23 16:28:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 16:28:34,648 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 16:28:34,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 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) [2025-01-23 16:28:34,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 16:28:34,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 16:28:34,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 16:28:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 16:28:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 16:28:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 16:28:35,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-01-23 16:28:35,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-01-23 16:28:35,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-01-23 16:28:35,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-01-23 16:28:35,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 16:28:35,347 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1] [2025-01-23 16:28:35,348 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-23 16:28:35,348 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-23 16:28:35,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-23 16:28:35,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 04:28:35 BasicIcfg [2025-01-23 16:28:35,357 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-23 16:28:35,358 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-23 16:28:35,358 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-23 16:28:35,358 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-23 16:28:35,359 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:28:32" (3/4) ... [2025-01-23 16:28:35,360 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-23 16:28:35,362 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-01-23 16:28:35,362 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-01-23 16:28:35,362 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2025-01-23 16:28:35,364 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2025-01-23 16:28:35,364 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-01-23 16:28:35,364 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-23 16:28:35,364 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-23 16:28:35,413 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-01-23 16:28:35,414 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.yml [2025-01-23 16:28:35,414 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-23 16:28:35,415 INFO L158 Benchmark]: Toolchain (without parser) took 3461.18ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 67.7MB in the end (delta: 23.0MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2025-01-23 16:28:35,415 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 16:28:35,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.49ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 68.8MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-23 16:28:35,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.30ms. Allocated memory is still 117.4MB. Free memory was 68.8MB in the beginning and 67.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 16:28:35,420 INFO L158 Benchmark]: Boogie Preprocessor took 21.21ms. Allocated memory is still 117.4MB. Free memory was 67.4MB in the beginning and 66.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 16:28:35,420 INFO L158 Benchmark]: RCFGBuilder took 310.11ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 48.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-23 16:28:35,420 INFO L158 Benchmark]: TraceAbstraction took 2678.45ms. Allocated memory is still 117.4MB. Free memory was 48.9MB in the beginning and 73.6MB in the end (delta: -24.8MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2025-01-23 16:28:35,420 INFO L158 Benchmark]: Witness Printer took 56.37ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 67.7MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-23 16:28:35,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.49ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 68.8MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.30ms. Allocated memory is still 117.4MB. Free memory was 68.8MB in the beginning and 67.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.21ms. Allocated memory is still 117.4MB. Free memory was 67.4MB in the beginning and 66.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.11ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 48.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2678.45ms. Allocated memory is still 117.4MB. Free memory was 48.9MB in the beginning and 73.6MB in the end (delta: -24.8MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Witness Printer took 56.37ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 67.7MB in the end (delta: 5.9MB). 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: 8198, independent: 8016, independent conditional: 7296, independent unconditional: 720, dependent: 182, dependent conditional: 157, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8198, independent: 8016, independent conditional: 7296, independent unconditional: 720, dependent: 182, dependent conditional: 157, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8198, independent: 8016, independent conditional: 7296, independent unconditional: 720, dependent: 182, dependent conditional: 157, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9267, independent: 8016, independent conditional: 7296, independent unconditional: 720, dependent: 1251, dependent conditional: 1226, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9267, independent: 8016, independent conditional: 285, independent unconditional: 7731, dependent: 1251, dependent conditional: 92, dependent unconditional: 1159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9267, independent: 8016, independent conditional: 285, independent unconditional: 7731, dependent: 1251, dependent conditional: 92, dependent unconditional: 1159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 761, independent: 730, independent conditional: 10, independent unconditional: 720, dependent: 31, dependent conditional: 6, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 761, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 49, independent: 18, independent conditional: 10, independent unconditional: 8, dependent: 31, dependent conditional: 6, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 18, independent conditional: 10, independent unconditional: 8, dependent: 31, dependent conditional: 6, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 623, independent: 194, independent conditional: 110, independent unconditional: 84, dependent: 429, dependent conditional: 34, dependent unconditional: 394, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 9267, independent: 7286, independent conditional: 275, independent unconditional: 7011, dependent: 1220, dependent conditional: 86, dependent unconditional: 1134, unknown: 761, unknown conditional: 16, unknown unconditional: 745] , Statistics on independence cache: Total cache size (in pairs): 761, Positive cache size: 730, Positive conditional cache size: 10, Positive unconditional cache size: 720, Negative cache size: 31, Negative conditional cache size: 6, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8145, Maximal queried relation: 3, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.6s, Number of persistent set computation: 848, Number of trivial persistent sets: 487, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 745, independent: 720, independent conditional: 0, independent unconditional: 720, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8198, independent: 8016, independent conditional: 7296, independent unconditional: 720, dependent: 182, dependent conditional: 157, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8198, independent: 8016, independent conditional: 7296, independent unconditional: 720, dependent: 182, dependent conditional: 157, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8198, independent: 8016, independent conditional: 7296, independent unconditional: 720, dependent: 182, dependent conditional: 157, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9267, independent: 8016, independent conditional: 7296, independent unconditional: 720, dependent: 1251, dependent conditional: 1226, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9267, independent: 8016, independent conditional: 285, independent unconditional: 7731, dependent: 1251, dependent conditional: 92, dependent unconditional: 1159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9267, independent: 8016, independent conditional: 285, independent unconditional: 7731, dependent: 1251, dependent conditional: 92, dependent unconditional: 1159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 761, independent: 730, independent conditional: 10, independent unconditional: 720, dependent: 31, dependent conditional: 6, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 761, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 49, independent: 18, independent conditional: 10, independent unconditional: 8, dependent: 31, dependent conditional: 6, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 18, independent conditional: 10, independent unconditional: 8, dependent: 31, dependent conditional: 6, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 623, independent: 194, independent conditional: 110, independent unconditional: 84, dependent: 429, dependent conditional: 34, dependent unconditional: 394, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 9267, independent: 7286, independent conditional: 275, independent unconditional: 7011, dependent: 1220, dependent conditional: 86, dependent unconditional: 1134, unknown: 761, unknown conditional: 16, unknown unconditional: 745] , Statistics on independence cache: Total cache size (in pairs): 761, Positive cache size: 730, Positive conditional cache size: 10, Positive unconditional cache size: 720, Negative cache size: 31, Negative conditional cache size: 6, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8145, Maximal queried relation: 3, Independence queries for same thread: 0 - PositiveResult [Line: 18]: 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 7 procedures, 66 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.5s, 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: 29, 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, 0.7s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-23 16:28:35,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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