./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1f73d82f 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 ../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c -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 86978482104e316c202a01b019909b1a7fe566ade6200bbc4193c078d7c086e9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 11:54:39,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 11:54:39,199 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-21 11:54:39,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 11:54:39,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 11:54:39,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 11:54:39,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 11:54:39,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 11:54:39,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 11:54:39,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 11:54:39,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 11:54:39,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 11:54:39,237 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 11:54:39,237 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 11:54:39,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 11:54:39,238 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 11:54:39,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 11:54:39,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 11:54:39,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 11:54:39,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 11:54:39,241 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 11:54:39,241 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 11:54:39,241 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 11:54:39,241 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 11:54:39,241 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 -> 86978482104e316c202a01b019909b1a7fe566ade6200bbc4193c078d7c086e9 [2024-11-21 11:54:39,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 11:54:39,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 11:54:39,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 11:54:39,562 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 11:54:39,562 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 11:54:39,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c [2024-11-21 11:54:40,826 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8b6b972f9/a080ee10fca04cf792da4037ff160b1a/FLAG0fa49e7eb [2024-11-21 11:54:41,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 11:54:41,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c [2024-11-21 11:54:41,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8b6b972f9/a080ee10fca04cf792da4037ff160b1a/FLAG0fa49e7eb [2024-11-21 11:54:41,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8b6b972f9/a080ee10fca04cf792da4037ff160b1a [2024-11-21 11:54:41,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 11:54:41,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 11:54:41,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 11:54:41,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 11:54:41,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 11:54:41,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e5fa4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41, skipping insertion in model container [2024-11-21 11:54:41,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,424 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 11:54:41,575 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c[2329,2342] [2024-11-21 11:54:41,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 11:54:41,590 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 11:54:41,604 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c[2329,2342] [2024-11-21 11:54:41,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 11:54:41,619 INFO L204 MainTranslator]: Completed translation [2024-11-21 11:54:41,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41 WrapperNode [2024-11-21 11:54:41,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 11:54:41,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 11:54:41,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 11:54:41,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 11:54:41,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,648 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 115 [2024-11-21 11:54:41,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 11:54:41,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 11:54:41,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 11:54:41,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 11:54:41,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,661 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,662 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 11:54:41,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 11:54:41,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 11:54:41,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 11:54:41,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (1/1) ... [2024-11-21 11:54:41,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 11:54:41,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 11:54:41,705 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) [2024-11-21 11:54:41,710 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 [2024-11-21 11:54:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 11:54:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-21 11:54:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-21 11:54:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-21 11:54:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-21 11:54:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 11:54:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 11:54:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 11:54:41,728 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 11:54:41,809 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 11:54:41,811 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 11:54:42,015 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 11:54:42,016 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 11:54:42,270 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 11:54:42,270 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-21 11:54:42,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:54:42 BoogieIcfgContainer [2024-11-21 11:54:42,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 11:54:42,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 11:54:42,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 11:54:42,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 11:54:42,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:54:41" (1/3) ... [2024-11-21 11:54:42,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708dfb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:54:42, skipping insertion in model container [2024-11-21 11:54:42,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:54:41" (2/3) ... [2024-11-21 11:54:42,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708dfb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:54:42, skipping insertion in model container [2024-11-21 11:54:42,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:54:42" (3/3) ... [2024-11-21 11:54:42,282 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2024-11-21 11:54:42,294 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 11:54:42,295 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-symm.wvr.c that has 3 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-21 11:54:42,295 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 11:54:42,343 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-21 11:54:42,399 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 11:54:42,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 11:54:42,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 11:54:42,403 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) [2024-11-21 11:54:42,404 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 [2024-11-21 11:54:42,476 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 11:54:42,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 11:54:42,502 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;@2ff313f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 11:54:42,502 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-21 11:54:42,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 11:54:42,803 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:54:42,803 INFO L139 ounterexampleChecker]: Examining path program with hash -1827362107, occurence #1 [2024-11-21 11:54:42,803 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 11:54:42,803 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:54:42,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:54:42,817 INFO L85 PathProgramCache]: Analyzing trace with hash 316939245, now seen corresponding path program 1 times [2024-11-21 11:54:42,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:54:42,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325881251] [2024-11-21 11:54:42,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:54:42,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:54:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:54:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 11:54:43,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:54:43,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325881251] [2024-11-21 11:54:43,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325881251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 11:54:43,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 11:54:43,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 11:54:43,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819069112] [2024-11-21 11:54:43,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 11:54:43,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 11:54:43,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:54:43,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 11:54:43,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 11:54:43,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:54:43,907 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:54:43,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 11:54:43,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:54:44,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 11:54:44,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-21 11:54:44,228 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-21 11:54:44,228 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-21 11:54:44,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 11:54:44,233 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-21 11:54:44,239 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-21 11:54:44,239 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-21 11:54:44,260 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 [2024-11-21 11:54:44,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 11:54:44 BasicIcfg [2024-11-21 11:54:44,261 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-21 11:54:44,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-21 11:54:44,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-21 11:54:44,262 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-21 11:54:44,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:54:42" (3/4) ... [2024-11-21 11:54:44,265 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-21 11:54:44,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-21 11:54:44,269 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-21 11:54:44,274 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2024-11-21 11:54:44,275 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-21 11:54:44,275 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-21 11:54:44,276 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-21 11:54:44,346 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-11-21 11:54:44,346 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.yml [2024-11-21 11:54:44,346 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-21 11:54:44,348 INFO L158 Benchmark]: Toolchain (without parser) took 2946.41ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.2MB in the beginning and 34.1MB in the end (delta: 26.1MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2024-11-21 11:54:44,348 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 11:54:44,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.63ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 48.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-21 11:54:44,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.73ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 46.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 11:54:44,351 INFO L158 Benchmark]: Boogie Preprocessor took 17.95ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 46.0MB in the end (delta: 966.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-21 11:54:44,352 INFO L158 Benchmark]: RCFGBuilder took 603.92ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 41.2MB in the end (delta: 4.8MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2024-11-21 11:54:44,353 INFO L158 Benchmark]: TraceAbstraction took 1987.95ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 40.7MB in the beginning and 38.3MB in the end (delta: 2.4MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2024-11-21 11:54:44,354 INFO L158 Benchmark]: Witness Printer took 84.70ms. Allocated memory is still 100.7MB. Free memory was 38.3MB in the beginning and 34.1MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 11:54:44,356 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.63ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 48.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.73ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 46.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.95ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 46.0MB in the end (delta: 966.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 603.92ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 41.2MB in the end (delta: 4.8MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1987.95ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 40.7MB in the beginning and 38.3MB in the end (delta: 2.4MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Witness Printer took 84.70ms. Allocated memory is still 100.7MB. Free memory was 38.3MB in the beginning and 34.1MB in the end (delta: 4.2MB). 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: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 38, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 473, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 46, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 38, unknown conditional: 0, unknown unconditional: 38] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 13, Number of trivial persistent sets: 11, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 8, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 38, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 473, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 46, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 38, unknown conditional: 0, unknown unconditional: 38] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8, Maximal queried relation: 0, Independence queries for same thread: 0 - PositiveResult [Line: 72]: 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 5 procedures, 21 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, 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: 5, 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, 0.9s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-21 11:54:44,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE