./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c --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/weaver/chl-name-comparator-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 e3298e0ac573b72ea1dd21021e341a1c4e9f42cf513c1ea24a79ab2c37c412bc --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 18:25:43,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 18:25:43,431 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 18:25:43,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 18:25:43,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 18:25:43,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 18:25:43,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 18:25:43,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 18:25:43,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 18:25:43,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 18:25:43,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 18:25:43,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 18:25:43,465 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 18:25:43,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 18:25:43,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 18:25:43,466 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 18:25:43,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 18:25:43,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 18:25:43,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 18:25:43,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 18:25:43,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 18:25:43,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 18:25:43,467 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 18:25:43,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 18:25:43,467 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 18:25:43,467 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 18:25:43,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 18:25:43,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 18:25:43,467 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 18:25:43,467 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 18:25:43,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 18:25:43,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 18:25:43,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 18:25:43,468 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 18:25:43,468 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 18:25:43,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 18:25:43,468 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 18:25:43,468 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 18:25:43,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 18:25:43,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 18:25:43,469 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 18:25:43,469 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 18:25:43,469 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 18:25:43,469 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 -> e3298e0ac573b72ea1dd21021e341a1c4e9f42cf513c1ea24a79ab2c37c412bc 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 18:25:43,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 18:25:43,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 18:25:43,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 18:25:43,705 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 18:25:43,705 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 18:25:43,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2025-01-23 18:25:45,535 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/1245ad2cd/c5ad5d8a57e8465e817725e89a95dfb3/FLAGd4e679e2e [2025-01-23 18:25:45,695 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 18:25:45,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2025-01-23 18:25:45,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/1245ad2cd/c5ad5d8a57e8465e817725e89a95dfb3/FLAGd4e679e2e [2025-01-23 18:25:45,713 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/1245ad2cd/c5ad5d8a57e8465e817725e89a95dfb3 [2025-01-23 18:25:45,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 18:25:45,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 18:25:45,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 18:25:45,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 18:25:45,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 18:25:45,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b5aef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45, skipping insertion in model container [2025-01-23 18:25:45,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,744 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 18:25:45,874 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/weaver/chl-name-comparator-symm.wvr.c[3882,3895] [2025-01-23 18:25:45,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 18:25:45,890 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 18:25:45,943 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/weaver/chl-name-comparator-symm.wvr.c[3882,3895] [2025-01-23 18:25:45,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 18:25:45,955 INFO L204 MainTranslator]: Completed translation [2025-01-23 18:25:45,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45 WrapperNode [2025-01-23 18:25:45,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 18:25:45,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 18:25:45,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 18:25:45,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 18:25:45,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,985 INFO L138 Inliner]: procedures = 24, calls = 24, calls flagged for inlining = 14, calls inlined = 16, statements flattened = 214 [2025-01-23 18:25:45,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 18:25:45,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 18:25:45,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 18:25:45,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 18:25:45,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,996 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:45,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:46,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:46,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:46,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 18:25:46,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 18:25:46,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 18:25:46,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 18:25:46,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (1/1) ... [2025-01-23 18:25:46,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 18:25:46,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:25:46,036 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 18:25:46,041 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 18:25:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 18:25:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 18:25:46,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 18:25:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 18:25:46,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 18:25:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 18:25:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 18:25:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 18:25:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 18:25:46,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 18:25:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 18:25:46,060 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 18:25:46,148 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 18:25:46,151 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 18:25:46,445 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 18:25:46,445 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 18:25:46,709 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 18:25:46,710 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-23 18:25:46,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 06:25:46 BoogieIcfgContainer [2025-01-23 18:25:46,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 18:25:46,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 18:25:46,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 18:25:46,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 18:25:46,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 06:25:45" (1/3) ... [2025-01-23 18:25:46,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c977ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 06:25:46, skipping insertion in model container [2025-01-23 18:25:46,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 06:25:45" (2/3) ... [2025-01-23 18:25:46,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c977ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 06:25:46, skipping insertion in model container [2025-01-23 18:25:46,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 06:25:46" (3/3) ... [2025-01-23 18:25:46,717 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-symm.wvr.c [2025-01-23 18:25:46,728 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 18:25:46,729 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-name-comparator-symm.wvr.c that has 3 procedures, 22 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-23 18:25:46,730 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 18:25:46,799 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 18:25:46,834 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 18:25:46,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 18:25:46,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:25:46,838 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 18:25:46,839 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 18:25:46,908 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 18:25:46,919 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 18:25:46,924 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;@4c2e6816, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 18:25:46,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-23 18:25:47,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:25:47,117 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:25:47,117 INFO L139 ounterexampleChecker]: Examining path program with hash 1106033058, occurence #1 [2025-01-23 18:25:47,118 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 18:25:47,118 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:25:47,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:25:47,121 INFO L85 PathProgramCache]: Analyzing trace with hash -567907863, now seen corresponding path program 1 times [2025-01-23 18:25:47,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:25:47,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071261384] [2025-01-23 18:25:47,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:25:47,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:25:47,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-23 18:25:47,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-23 18:25:47,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:25:47,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:47,392 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 18:25:47,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:25:47,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071261384] [2025-01-23 18:25:47,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071261384] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:25:47,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 18:25:47,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 18:25:47,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132113850] [2025-01-23 18:25:47,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:25:47,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 18:25:47,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:25:47,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 18:25:47,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 18:25:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:47,408 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:25:47,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 18:25:47,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:47,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 18:25:47,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:25:47,443 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:25:47,443 INFO L139 ounterexampleChecker]: Examining path program with hash 1557237810, occurence #1 [2025-01-23 18:25:47,443 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 18:25:47,443 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:25:47,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:25:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1635203435, now seen corresponding path program 1 times [2025-01-23 18:25:47,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:25:47,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256841143] [2025-01-23 18:25:47,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:25:47,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:25:47,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-23 18:25:47,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-23 18:25:47,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:25:47,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:47,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 18:25:47,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:25:47,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256841143] [2025-01-23 18:25:47,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256841143] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:25:47,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246379667] [2025-01-23 18:25:47,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:25:47,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:25:47,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:25:47,598 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:25:47,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 18:25:47,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-23 18:25:47,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-23 18:25:47,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:25:47,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:47,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-23 18:25:47,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:25:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 18:25:47,725 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 18:25:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 18:25:47,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246379667] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 18:25:47,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 18:25:47,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-01-23 18:25:47,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179292375] [2025-01-23 18:25:47,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 18:25:47,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-23 18:25:47,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:25:47,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-23 18:25:47,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-01-23 18:25:47,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:47,748 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:25:47,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 18:25:47,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:47,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:47,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:47,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 18:25:48,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:25:48,023 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:25:48,023 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:25:48,024 INFO L139 ounterexampleChecker]: Examining path program with hash 1557237810, occurence #2 [2025-01-23 18:25:48,024 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 18:25:48,024 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 18:25:48,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:48,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 18:25:48,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:48,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-23 18:25:48,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:48,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 18:25:48,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:48,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 18:25:48,086 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:48,086 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 18:25:48,086 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:25:48,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:25:48,086 INFO L85 PathProgramCache]: Analyzing trace with hash -774969301, now seen corresponding path program 2 times [2025-01-23 18:25:48,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:25:48,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409295893] [2025-01-23 18:25:48,087 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 18:25:48,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:25:48,097 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-01-23 18:25:48,122 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 21 statements. [2025-01-23 18:25:48,122 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 18:25:48,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:48,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:25:48,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409295893] [2025-01-23 18:25:48,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409295893] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:25:48,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 18:25:48,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-23 18:25:48,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543480929] [2025-01-23 18:25:48,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:25:48,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 18:25:48,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:25:48,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 18:25:48,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-23 18:25:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:48,470 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:25:48,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 18:25:48,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:48,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:48,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:48,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:48,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 18:25:48,567 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:25:48,567 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:25:48,567 INFO L139 ounterexampleChecker]: Examining path program with hash 1948260846, occurence #1 [2025-01-23 18:25:48,567 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 18:25:48,567 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:25:48,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:25:48,568 INFO L85 PathProgramCache]: Analyzing trace with hash 836996624, now seen corresponding path program 1 times [2025-01-23 18:25:48,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:25:48,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811506348] [2025-01-23 18:25:48,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:25:48,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:25:48,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-23 18:25:48,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-23 18:25:48,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:25:48,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:48,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:48,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:25:48,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811506348] [2025-01-23 18:25:48,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811506348] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:25:48,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 18:25:48,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 18:25:48,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767884035] [2025-01-23 18:25:48,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:25:48,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 18:25:48,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:25:48,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 18:25:48,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-23 18:25:48,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:48,702 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:25:48,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 18:25:48,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:48,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:48,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:48,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:48,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:48,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:48,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:48,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:48,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-23 18:25:48,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:25:48,798 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:25:48,798 INFO L139 ounterexampleChecker]: Examining path program with hash 972392804, occurence #1 [2025-01-23 18:25:48,798 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 18:25:48,798 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:25:48,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:25:48,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1871058959, now seen corresponding path program 1 times [2025-01-23 18:25:48,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:25:48,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244139426] [2025-01-23 18:25:48,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:25:48,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:25:48,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 18:25:48,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 18:25:48,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:25:48,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:49,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:25:49,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244139426] [2025-01-23 18:25:49,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244139426] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:25:49,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426911115] [2025-01-23 18:25:49,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 18:25:49,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:25:49,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:25:49,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:25:49,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 18:25:49,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 18:25:49,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 18:25:49,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:25:49,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:49,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-23 18:25:49,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:25:50,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 132 [2025-01-23 18:25:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:50,248 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 18:25:51,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 18:25:51,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 298 treesize of output 194 [2025-01-23 18:25:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:51,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426911115] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 18:25:51,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 18:25:51,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2025-01-23 18:25:51,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687636410] [2025-01-23 18:25:51,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 18:25:51,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-23 18:25:51,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:25:51,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-23 18:25:51,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2025-01-23 18:25:51,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:51,868 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:25:51,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 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 18:25:51,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:51,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:51,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:51,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:51,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:52,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:52,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:52,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:52,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 18:25:52,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 18:25:52,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:25:52,792 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:25:52,792 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:25:52,792 INFO L139 ounterexampleChecker]: Examining path program with hash 1948260846, occurence #2 [2025-01-23 18:25:52,792 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 18:25:52,792 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 18:25:52,792 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:52,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 18:25:52,793 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:52,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 18:25:52,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:52,793 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-01-23 18:25:52,793 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:52,794 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-01-23 18:25:52,794 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:52,794 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 18:25:52,794 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:25:52,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:25:52,796 INFO L85 PathProgramCache]: Analyzing trace with hash -238177194, now seen corresponding path program 2 times [2025-01-23 18:25:52,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:25:52,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283863358] [2025-01-23 18:25:52,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 18:25:52,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:25:52,806 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-01-23 18:25:52,845 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 27 of 27 statements. [2025-01-23 18:25:52,846 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 18:25:52,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:53,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:25:53,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283863358] [2025-01-23 18:25:53,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283863358] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:25:53,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159750714] [2025-01-23 18:25:53,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 18:25:53,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:25:53,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:25:53,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:25:53,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 18:25:53,338 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-01-23 18:25:53,360 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 27 of 27 statements. [2025-01-23 18:25:53,360 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 18:25:53,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:53,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-23 18:25:53,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:25:53,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 72 [2025-01-23 18:25:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:53,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 18:25:53,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 18:25:53,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 30 [2025-01-23 18:25:53,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:53,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159750714] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 18:25:53,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 18:25:53,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 20 [2025-01-23 18:25:53,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120653666] [2025-01-23 18:25:53,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 18:25:53,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-23 18:25:53,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:25:53,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-23 18:25:53,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2025-01-23 18:25:53,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:53,881 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:25:53,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.65) internal successors, (53), 20 states have internal predecessors, (53), 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 18:25:53,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:53,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:53,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:53,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:53,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 18:25:53,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:25:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:25:54,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-23 18:25:54,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:25:54,481 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:25:54,481 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:25:54,482 INFO L139 ounterexampleChecker]: Examining path program with hash 972392804, occurence #2 [2025-01-23 18:25:54,482 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 18:25:54,482 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 18:25:54,482 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:54,482 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 18:25:54,482 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:54,482 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-23 18:25:54,482 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:54,482 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-01-23 18:25:54,482 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:54,482 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 18:25:54,482 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:54,482 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 18:25:54,482 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:25:54,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:25:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash -25979721, now seen corresponding path program 3 times [2025-01-23 18:25:54,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:25:54,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278639490] [2025-01-23 18:25:54,483 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 18:25:54,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:25:54,493 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 29 statements into 3 equivalence classes. [2025-01-23 18:25:54,528 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 18:25:54,528 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-23 18:25:54,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:55,226 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:55,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:25:55,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278639490] [2025-01-23 18:25:55,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278639490] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:25:55,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916334626] [2025-01-23 18:25:55,227 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 18:25:55,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:25:55,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:25:55,233 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:25:55,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 18:25:55,280 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 29 statements into 3 equivalence classes. [2025-01-23 18:25:55,303 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 18:25:55,303 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-23 18:25:55,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:25:55,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 51 conjuncts are in the unsatisfiable core [2025-01-23 18:25:55,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:25:55,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-23 18:25:55,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-23 18:25:55,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 90 [2025-01-23 18:25:55,776 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 18:25:55,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 18:25:58,087 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:25:58,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916334626] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 18:25:58,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 18:25:58,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 10] total 29 [2025-01-23 18:25:58,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556506222] [2025-01-23 18:25:58,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 18:25:58,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-23 18:25:58,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:25:58,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-23 18:25:58,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2025-01-23 18:25:58,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:58,089 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:25:58,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 29 states have internal predecessors, (71), 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 18:25:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:25:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:25:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:25:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:25:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:25:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:25:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:25:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 18:25:59,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-23 18:25:59,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:25:59,704 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:25:59,704 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:25:59,704 INFO L139 ounterexampleChecker]: Examining path program with hash 972392804, occurence #3 [2025-01-23 18:25:59,704 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 18:25:59,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 18:25:59,704 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:59,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 18:25:59,704 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:59,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-23 18:25:59,704 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:59,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-01-23 18:25:59,704 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:59,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 18:25:59,704 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:25:59,704 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-23 18:25:59,704 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:25:59,704 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 18:25:59,704 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:25:59,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:25:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1656732186, now seen corresponding path program 4 times [2025-01-23 18:25:59,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:25:59,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669277142] [2025-01-23 18:25:59,705 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 18:25:59,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:25:59,712 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 31 statements into 2 equivalence classes. [2025-01-23 18:25:59,735 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 18:25:59,736 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 18:25:59,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 18:26:00,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:26:00,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669277142] [2025-01-23 18:26:00,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669277142] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:26:00,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478178993] [2025-01-23 18:26:00,170 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 18:26:00,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:00,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:26:00,176 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:26:00,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-23 18:26:00,221 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 31 statements into 2 equivalence classes. [2025-01-23 18:26:00,244 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 18:26:00,244 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 18:26:00,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:00,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-23 18:26:00,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:26:00,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 72 [2025-01-23 18:26:00,475 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 18:26:00,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 18:26:00,560 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 18:26:00,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 47 [2025-01-23 18:26:00,687 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:26:00,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478178993] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 18:26:00,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 18:26:00,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 9] total 23 [2025-01-23 18:26:00,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790943569] [2025-01-23 18:26:00,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 18:26:00,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-23 18:26:00,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:26:00,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-23 18:26:00,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2025-01-23 18:26:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:00,688 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:26:00,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 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 18:26:00,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:00,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:00,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:00,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:00,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:00,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:00,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-23 18:26:00,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:01,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 18:26:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 18:26:01,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-23 18:26:01,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:01,445 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:26:01,445 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:26:01,445 INFO L139 ounterexampleChecker]: Examining path program with hash 1948260846, occurence #3 [2025-01-23 18:26:01,445 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 18:26:01,445 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 18:26:01,446 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:01,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 18:26:01,446 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:01,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-23 18:26:01,446 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:01,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-23 18:26:01,446 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:01,446 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-23 18:26:01,446 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:01,446 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 18:26:01,446 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:26:01,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:26:01,446 INFO L85 PathProgramCache]: Analyzing trace with hash -938522724, now seen corresponding path program 5 times [2025-01-23 18:26:01,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:26:01,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742452530] [2025-01-23 18:26:01,446 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 18:26:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:26:01,453 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 31 statements into 3 equivalence classes. [2025-01-23 18:26:01,487 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 18:26:01,490 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-23 18:26:01,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 18:26:01,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:26:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742452530] [2025-01-23 18:26:01,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742452530] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:26:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042622677] [2025-01-23 18:26:01,883 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 18:26:01,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:01,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:26:01,886 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:26:01,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-23 18:26:01,934 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 31 statements into 3 equivalence classes. [2025-01-23 18:26:01,958 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 18:26:01,958 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-23 18:26:01,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:01,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-23 18:26:01,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:26:02,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 59 [2025-01-23 18:26:02,189 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:26:02,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 18:26:02,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 18:26:02,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 27 [2025-01-23 18:26:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:26:02,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042622677] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 18:26:02,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 18:26:02,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21 [2025-01-23 18:26:02,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085652247] [2025-01-23 18:26:02,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 18:26:02,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-23 18:26:02,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:26:02,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-23 18:26:02,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2025-01-23 18:26:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:02,432 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:26:02,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 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 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-23 18:26:02,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:03,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-23 18:26:03,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:03,599 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:26:03,599 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:26:03,599 INFO L139 ounterexampleChecker]: Examining path program with hash 972392804, occurence #4 [2025-01-23 18:26:03,599 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 18:26:03,599 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 18:26:03,599 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:03,599 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 18:26:03,600 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:03,600 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-01-23 18:26:03,600 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:03,600 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-23 18:26:03,600 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:03,600 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-01-23 18:26:03,600 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:03,600 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 18:26:03,600 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:26:03,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:26:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1251831421, now seen corresponding path program 6 times [2025-01-23 18:26:03,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:26:03,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552366589] [2025-01-23 18:26:03,600 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 18:26:03,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:26:03,609 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 33 statements into 4 equivalence classes. [2025-01-23 18:26:03,636 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 33 of 33 statements. [2025-01-23 18:26:03,636 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-01-23 18:26:03,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 18:26:04,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:26:04,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552366589] [2025-01-23 18:26:04,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552366589] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:26:04,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537910310] [2025-01-23 18:26:04,749 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 18:26:04,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:04,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:26:04,752 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:26:04,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-23 18:26:04,801 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 33 statements into 4 equivalence classes. [2025-01-23 18:26:04,832 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 33 of 33 statements. [2025-01-23 18:26:04,833 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-01-23 18:26:04,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:04,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-01-23 18:26:04,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:26:05,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 131 [2025-01-23 18:26:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 18:26:05,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 18:26:06,455 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 18:26:06,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 275 treesize of output 179 [2025-01-23 18:26:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:26:06,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537910310] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 18:26:06,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 18:26:06,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 13] total 42 [2025-01-23 18:26:06,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489491450] [2025-01-23 18:26:06,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 18:26:06,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-01-23 18:26:06,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:26:06,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-01-23 18:26:06,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1558, Unknown=0, NotChecked=0, Total=1722 [2025-01-23 18:26:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:06,819 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:26:06,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.142857142857143) internal successors, (90), 42 states have internal predecessors, (90), 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 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:06,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 18:26:08,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-23 18:26:08,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:08,521 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:26:08,521 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:26:08,521 INFO L139 ounterexampleChecker]: Examining path program with hash 972392804, occurence #5 [2025-01-23 18:26:08,521 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 18:26:08,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 18:26:08,521 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:08,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 18:26:08,521 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:08,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-01-23 18:26:08,521 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:08,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-23 18:26:08,521 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:08,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-01-23 18:26:08,521 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:08,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-01-23 18:26:08,521 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:08,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-01-23 18:26:08,521 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:08,521 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 18:26:08,521 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:26:08,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:26:08,522 INFO L85 PathProgramCache]: Analyzing trace with hash -250373757, now seen corresponding path program 7 times [2025-01-23 18:26:08,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:26:08,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932469882] [2025-01-23 18:26:08,522 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 18:26:08,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:26:08,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-23 18:26:08,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-23 18:26:08,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:26:08,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:26:08,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:26:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932469882] [2025-01-23 18:26:08,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932469882] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:26:08,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575483749] [2025-01-23 18:26:08,605 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 18:26:08,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:08,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:26:08,606 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:26:08,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-23 18:26:08,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-23 18:26:08,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-23 18:26:08,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 18:26:08,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:08,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-23 18:26:08,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:26:08,701 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-23 18:26:08,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 18:26:08,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575483749] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:26:08,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 18:26:08,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 8 [2025-01-23 18:26:08,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385494688] [2025-01-23 18:26:08,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:26:08,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 18:26:08,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:26:08,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 18:26:08,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-01-23 18:26:08,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:08,703 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:26:08,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:08,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 18:26:08,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 18:26:08,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-23 18:26:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:26:09,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-23 18:26:09,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:09,449 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 18:26:09,449 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 18:26:09,449 INFO L139 ounterexampleChecker]: Examining path program with hash 1948260846, occurence #4 [2025-01-23 18:26:09,449 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 18:26:09,450 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-23 18:26:09,450 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:09,450 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-23 18:26:09,450 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:09,450 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 18:26:09,450 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:09,450 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-01-23 18:26:09,450 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 18:26:09,450 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-01-23 18:26:09,450 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 18:26:09,450 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 18:26:09,450 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 18:26:09,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 18:26:09,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1322661918, now seen corresponding path program 8 times [2025-01-23 18:26:09,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 18:26:09,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631000697] [2025-01-23 18:26:09,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 18:26:09,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 18:26:09,459 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-01-23 18:26:09,467 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-01-23 18:26:09,467 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 18:26:09,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:26:09,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 18:26:09,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631000697] [2025-01-23 18:26:09,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631000697] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 18:26:09,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84365475] [2025-01-23 18:26:09,513 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 18:26:09,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:09,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 18:26:09,515 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 18:26:09,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-23 18:26:09,566 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-01-23 18:26:09,590 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-01-23 18:26:09,590 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 18:26:09,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 18:26:09,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-23 18:26:09,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 18:26:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 18:26:09,609 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 18:26:09,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84365475] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 18:26:09,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 18:26:09,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2025-01-23 18:26:09,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022613765] [2025-01-23 18:26:09,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 18:26:09,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 18:26:09,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 18:26:09,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 18:26:09,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-01-23 18:26:09,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:09,610 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 18:26:09,610 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 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:26:09,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 18:26:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 18:26:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 18:26:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 18:26:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 18:26:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-23 18:26:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-23 18:26:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 18:26:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-23 18:26:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:26:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 18:26:10,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-01-23 18:26:10,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-23 18:26:10,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-23 18:26:10,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-23 18:26:11,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 18:26:11,189 INFO L422 BasicCegarLoop]: Path program histogram: [8, 2, 1, 1] [2025-01-23 18:26:11,191 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-23 18:26:11,191 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-23 18:26:11,202 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 18:26:11,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 06:26:11 BasicIcfg [2025-01-23 18:26:11,202 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-23 18:26:11,203 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-23 18:26:11,203 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-23 18:26:11,203 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-23 18:26:11,203 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 06:25:46" (3/4) ... [2025-01-23 18:26:11,205 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-23 18:26:11,206 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-23 18:26:11,207 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-23 18:26:11,211 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 112 nodes and edges [2025-01-23 18:26:11,211 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2025-01-23 18:26:11,211 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-23 18:26:11,211 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-23 18:26:11,264 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-01-23 18:26:11,264 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.yml [2025-01-23 18:26:11,265 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-23 18:26:11,267 INFO L158 Benchmark]: Toolchain (without parser) took 25546.96ms. Allocated memory was 109.1MB in the beginning and 570.4MB in the end (delta: 461.4MB). Free memory was 80.9MB in the beginning and 320.9MB in the end (delta: -240.0MB). Peak memory consumption was 216.6MB. Max. memory is 16.1GB. [2025-01-23 18:26:11,267 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 83.9MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 18:26:11,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.04ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 66.5MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-23 18:26:11,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.61ms. Allocated memory is still 109.1MB. Free memory was 66.5MB in the beginning and 64.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 18:26:11,268 INFO L158 Benchmark]: Boogie Preprocessor took 16.51ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 63.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 18:26:11,268 INFO L158 Benchmark]: RCFGBuilder took 708.32ms. Allocated memory is still 109.1MB. Free memory was 63.0MB in the beginning and 37.6MB in the end (delta: 25.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2025-01-23 18:26:11,268 INFO L158 Benchmark]: TraceAbstraction took 24489.98ms. Allocated memory was 109.1MB in the beginning and 570.4MB in the end (delta: 461.4MB). Free memory was 37.1MB in the beginning and 328.4MB in the end (delta: -291.3MB). Peak memory consumption was 170.3MB. Max. memory is 16.1GB. [2025-01-23 18:26:11,268 INFO L158 Benchmark]: Witness Printer took 61.96ms. Allocated memory is still 570.4MB. Free memory was 328.4MB in the beginning and 320.9MB in the end (delta: 7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 18:26:11,269 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 83.9MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.04ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 66.5MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.61ms. Allocated memory is still 109.1MB. Free memory was 66.5MB in the beginning and 64.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.51ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 63.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 708.32ms. Allocated memory is still 109.1MB. Free memory was 63.0MB in the beginning and 37.6MB in the end (delta: 25.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * TraceAbstraction took 24489.98ms. Allocated memory was 109.1MB in the beginning and 570.4MB in the end (delta: 461.4MB). Free memory was 37.1MB in the beginning and 328.4MB in the end (delta: -291.3MB). Peak memory consumption was 170.3MB. Max. memory is 16.1GB. * Witness Printer took 61.96ms. Allocated memory is still 570.4MB. Free memory was 328.4MB in the beginning and 320.9MB in the end (delta: 7.5MB). 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: 1667, independent: 1116, independent conditional: 858, independent unconditional: 258, dependent: 551, dependent conditional: 549, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1118, independent: 1116, independent conditional: 858, independent unconditional: 258, 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: 1118, independent: 1116, independent conditional: 858, independent unconditional: 258, 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: 1118, independent: 1116, independent conditional: 858, independent unconditional: 258, 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: 1118, independent: 1116, independent conditional: 0, independent unconditional: 1116, 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: 1118, independent: 1116, independent conditional: 0, independent unconditional: 1116, 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: 220, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 220, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 218, independent: 138, independent conditional: 0, independent unconditional: 138, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1118, independent: 898, independent conditional: 0, independent unconditional: 898, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 220, unknown conditional: 0, unknown unconditional: 220] , Statistics on independence cache: Total cache size (in pairs): 220, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, 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: 858, Maximal queried relation: 0, Independence queries for same thread: 549, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 54, Number of trivial persistent sets: 42, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 260, independent: 258, independent conditional: 0, independent unconditional: 258, 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: 1667, independent: 1116, independent conditional: 858, independent unconditional: 258, dependent: 551, dependent conditional: 549, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1118, independent: 1116, independent conditional: 858, independent unconditional: 258, 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: 1118, independent: 1116, independent conditional: 858, independent unconditional: 258, 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: 1118, independent: 1116, independent conditional: 858, independent unconditional: 258, 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: 1118, independent: 1116, independent conditional: 0, independent unconditional: 1116, 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: 1118, independent: 1116, independent conditional: 0, independent unconditional: 1116, 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: 220, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 220, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 218, independent: 138, independent conditional: 0, independent unconditional: 138, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1118, independent: 898, independent conditional: 0, independent unconditional: 898, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 220, unknown conditional: 0, unknown unconditional: 220] , Statistics on independence cache: Total cache size (in pairs): 220, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, 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: 858, Maximal queried relation: 0, Independence queries for same thread: 549 - PositiveResult [Line: 113]: 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, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 24.3s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 7.9s, 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: 180, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 594 NumberOfCodeBlocks, 591 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 761 ConstructedInterpolants, 0 QuantifiedInterpolants, 12614 SizeOfPredicates, 155 NumberOfNonLiveVariables, 2024 ConjunctsInSsa, 219 ConjunctsInUnsatCore, 28 InterpolantComputations, 5 PerfectInterpolantSequences, 205/405 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]: 61, ConditionCalculationTime [ms]: 0, ConditionCalculations: 19, 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 18:26:11,290 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