./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_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/popl20-send-receive-alt.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 d2a575889db2e07e0d6a3fd2f8635ba39d2afc2713d706bcd4d4aaa862bed792 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-24 04:14:39,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-24 04:14:39,590 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-24 04:14:39,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-24 04:14:39,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-24 04:14:39,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-24 04:14:39,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-24 04:14:39,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-24 04:14:39,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-24 04:14:39,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-24 04:14:39,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-24 04:14:39,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-24 04:14:39,616 INFO L153 SettingsManager]: * Use SBE=true [2025-01-24 04:14:39,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-24 04:14:39,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-24 04:14:39,617 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-24 04:14:39,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-24 04:14:39,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-24 04:14:39,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-24 04:14:39,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-24 04:14:39,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-24 04:14:39,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 04:14:39,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-24 04:14:39,618 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-24 04:14:39,618 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 -> d2a575889db2e07e0d6a3fd2f8635ba39d2afc2713d706bcd4d4aaa862bed792 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 -> NECESSARY_AND_SUFFICIENT [2025-01-24 04:14:39,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-24 04:14:39,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-24 04:14:39,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-24 04:14:39,859 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-24 04:14:39,859 INFO L274 PluginConnector]: CDTParser initialized [2025-01-24 04:14:39,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2025-01-24 04:14:40,977 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/5718331dc/e0283d9bbde744c8b9cd8b8e2b2c7f98/FLAGf73621b8e [2025-01-24 04:14:41,136 INFO L384 CDTParser]: Found 1 translation units. [2025-01-24 04:14:41,137 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2025-01-24 04:14:41,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/5718331dc/e0283d9bbde744c8b9cd8b8e2b2c7f98/FLAGf73621b8e [2025-01-24 04:14:41,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/5718331dc/e0283d9bbde744c8b9cd8b8e2b2c7f98 [2025-01-24 04:14:41,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-24 04:14:41,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-24 04:14:41,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-24 04:14:41,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-24 04:14:41,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-24 04:14:41,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336ce9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41, skipping insertion in model container [2025-01-24 04:14:41,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-24 04:14:41,295 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/popl20-send-receive-alt.wvr.c[2676,2689] [2025-01-24 04:14:41,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 04:14:41,310 INFO L200 MainTranslator]: Completed pre-run [2025-01-24 04:14:41,362 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/popl20-send-receive-alt.wvr.c[2676,2689] [2025-01-24 04:14:41,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 04:14:41,379 INFO L204 MainTranslator]: Completed translation [2025-01-24 04:14:41,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41 WrapperNode [2025-01-24 04:14:41,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-24 04:14:41,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-24 04:14:41,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-24 04:14:41,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-24 04:14:41,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,400 INFO L138 Inliner]: procedures = 23, calls = 27, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 134 [2025-01-24 04:14:41,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-24 04:14:41,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-24 04:14:41,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-24 04:14:41,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-24 04:14:41,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-24 04:14:41,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-24 04:14:41,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-24 04:14:41,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-24 04:14:41,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (1/1) ... [2025-01-24 04:14:41,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 04:14:41,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:41,440 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) [2025-01-24 04:14:41,442 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 [2025-01-24 04:14:41,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-24 04:14:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-24 04:14:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-24 04:14:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-24 04:14:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-24 04:14:41,458 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-24 04:14:41,531 INFO L234 CfgBuilder]: Building ICFG [2025-01-24 04:14:41,532 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-24 04:14:41,741 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-24 04:14:41,741 INFO L283 CfgBuilder]: Performing block encoding [2025-01-24 04:14:41,916 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-24 04:14:41,919 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-24 04:14:41,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:14:41 BoogieIcfgContainer [2025-01-24 04:14:41,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-24 04:14:41,921 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-24 04:14:41,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-24 04:14:41,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-24 04:14:41,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 04:14:41" (1/3) ... [2025-01-24 04:14:41,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541aefb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:14:41, skipping insertion in model container [2025-01-24 04:14:41,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:41" (2/3) ... [2025-01-24 04:14:41,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541aefb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:14:41, skipping insertion in model container [2025-01-24 04:14:41,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:14:41" (3/3) ... [2025-01-24 04:14:41,927 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2025-01-24 04:14:41,937 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-24 04:14:41,938 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-send-receive-alt.wvr.c that has 3 procedures, 27 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-24 04:14:41,939 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-24 04:14:41,982 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-24 04:14:42,014 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 04:14:42,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-24 04:14:42,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:42,017 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) [2025-01-24 04:14:42,018 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 [2025-01-24 04:14:42,077 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-24 04:14:42,089 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-24 04:14:42,095 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;@59a84ec4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 04:14:42,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-24 04:14:42,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:42,203 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:42,203 INFO L139 ounterexampleChecker]: Examining path program with hash 127534330, occurence #1 [2025-01-24 04:14:42,204 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:42,204 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:42,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:42,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2128902422, now seen corresponding path program 1 times [2025-01-24 04:14:42,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:42,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762342866] [2025-01-24 04:14:42,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:42,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:42,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-24 04:14:42,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-24 04:14:42,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:42,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:42,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:42,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:42,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762342866] [2025-01-24 04:14:42,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762342866] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:42,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:14:42,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-24 04:14:42,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494913310] [2025-01-24 04:14:42,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:42,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-24 04:14:42,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:42,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-24 04:14:42,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-24 04:14:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,388 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:42,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) 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) [2025-01-24 04:14:42,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-24 04:14:42,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:42,475 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:42,475 INFO L139 ounterexampleChecker]: Examining path program with hash 2069437778, occurence #1 [2025-01-24 04:14:42,475 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:42,475 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:42,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:42,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1493925567, now seen corresponding path program 1 times [2025-01-24 04:14:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:42,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194221733] [2025-01-24 04:14:42,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:42,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-24 04:14:42,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-24 04:14:42,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:42,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:42,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:42,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194221733] [2025-01-24 04:14:42,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194221733] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:42,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:14:42,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-24 04:14:42,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374830953] [2025-01-24 04:14:42,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:42,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-24 04:14:42,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:42,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-24 04:14:42,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-24 04:14:42,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,641 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:42,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 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) [2025-01-24 04:14:42,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:42,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-24 04:14:42,754 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:42,754 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:42,755 INFO L139 ounterexampleChecker]: Examining path program with hash -368273689, occurence #1 [2025-01-24 04:14:42,755 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:42,755 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:42,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:42,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2124353199, now seen corresponding path program 1 times [2025-01-24 04:14:42,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:42,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407402573] [2025-01-24 04:14:42,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:42,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:42,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-24 04:14:42,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:14:42,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:42,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:42,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:42,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407402573] [2025-01-24 04:14:42,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407402573] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:42,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:14:42,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-24 04:14:42,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204013465] [2025-01-24 04:14:42,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:42,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:14:42,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:42,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:14:42,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:14:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,915 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:42,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:14:42,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:42,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:42,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-24 04:14:42,958 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:42,958 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:42,958 INFO L139 ounterexampleChecker]: Examining path program with hash -368273689, occurence #2 [2025-01-24 04:14:42,958 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:14:42,958 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:14:42,959 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:42,959 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-24 04:14:42,968 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:42,969 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-24 04:14:42,969 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:42,969 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-24 04:14:42,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1590888469, now seen corresponding path program 1 times [2025-01-24 04:14:42,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:14:42,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144896482] [2025-01-24 04:14:42,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:42,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:43,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-24 04:14:43,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-24 04:14:43,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:43,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:14:43,011 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:14:43,011 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:14:43,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-01-24 04:14:43,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:43,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-01-24 04:14:43,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:43,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-24 04:14:43,011 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:43,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-24 04:14:43,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:43,011 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:14:43,011 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:43,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:43,012 INFO L85 PathProgramCache]: Analyzing trace with hash -769624382, now seen corresponding path program 1 times [2025-01-24 04:14:43,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:43,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144820646] [2025-01-24 04:14:43,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:43,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:43,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-24 04:14:43,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-24 04:14:43,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:43,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:43,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:43,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144820646] [2025-01-24 04:14:43,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144820646] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:14:43,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444903862] [2025-01-24 04:14:43,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:43,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:43,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:43,229 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) [2025-01-24 04:14:43,231 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 [2025-01-24 04:14:43,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-24 04:14:43,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-24 04:14:43,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:43,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:43,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-24 04:14:43,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:14:43,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:43,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:14:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:43,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444903862] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:14:43,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:14:43,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2025-01-24 04:14:43,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884488494] [2025-01-24 04:14:43,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:14:43,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-24 04:14:43,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:43,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-24 04:14:43,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-01-24 04:14:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:43,496 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:43,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 13 states have internal predecessors, (49), 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) [2025-01-24 04:14:43,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:43,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:43,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:43,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:43,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:43,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:43,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:43,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-24 04:14:43,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:43,837 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:43,837 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:43,838 INFO L139 ounterexampleChecker]: Examining path program with hash -368273689, occurence #3 [2025-01-24 04:14:43,838 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:14:43,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:14:43,838 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:43,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-24 04:14:43,838 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:43,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 04:14:43,838 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:43,838 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-01-24 04:14:43,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:43,863 INFO L85 PathProgramCache]: Analyzing trace with hash 350989635, now seen corresponding path program 1 times [2025-01-24 04:14:43,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:14:43,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126766658] [2025-01-24 04:14:43,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:43,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:43,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-24 04:14:43,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-24 04:14:43,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:43,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:14:43,888 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:14:43,888 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:14:43,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-24 04:14:43,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:43,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-24 04:14:43,889 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:43,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-24 04:14:43,889 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:43,889 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-01-24 04:14:43,892 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:43,892 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:14:43,892 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:43,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:43,893 INFO L85 PathProgramCache]: Analyzing trace with hash -288616177, now seen corresponding path program 2 times [2025-01-24 04:14:43,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:43,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251732037] [2025-01-24 04:14:43,893 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:14:43,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:43,899 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-24 04:14:43,906 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-01-24 04:14:43,906 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:14:43,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:43,962 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:14:43,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:43,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251732037] [2025-01-24 04:14:43,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251732037] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:14:43,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316648768] [2025-01-24 04:14:43,962 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:14:43,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:43,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:43,964 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) [2025-01-24 04:14:43,966 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 [2025-01-24 04:14:44,001 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-24 04:14:44,019 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-01-24 04:14:44,019 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:14:44,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:44,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-24 04:14:44,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:14:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 04:14:44,052 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:14:44,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316648768] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:44,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-24 04:14:44,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-01-24 04:14:44,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049432915] [2025-01-24 04:14:44,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:44,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:14:44,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:44,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:14:44,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-24 04:14:44,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:44,053 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:44,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2025-01-24 04:14:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:44,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:44,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-24 04:14:44,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:44,347 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:44,347 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:44,347 INFO L139 ounterexampleChecker]: Examining path program with hash -1119342501, occurence #1 [2025-01-24 04:14:44,347 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:44,347 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:44,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash -960800468, now seen corresponding path program 3 times [2025-01-24 04:14:44,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:44,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049940816] [2025-01-24 04:14:44,347 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:14:44,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:44,353 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 2 equivalence classes. [2025-01-24 04:14:44,364 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-01-24 04:14:44,364 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-24 04:14:44,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:44,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:14:44,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:44,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049940816] [2025-01-24 04:14:44,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049940816] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:14:44,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973064252] [2025-01-24 04:14:44,491 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:14:44,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:44,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:44,493 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) [2025-01-24 04:14:44,494 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 [2025-01-24 04:14:44,536 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 2 equivalence classes. [2025-01-24 04:14:44,555 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-01-24 04:14:44,555 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-24 04:14:44,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:44,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-24 04:14:44,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:14:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:14:44,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:14:44,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:14:44,687 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 40 treesize of output 24 [2025-01-24 04:14:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:14:44,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973064252] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:14:44,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:14:44,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2025-01-24 04:14:44,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51612455] [2025-01-24 04:14:44,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:14:44,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-24 04:14:44,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:44,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-24 04:14:44,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-24 04:14:44,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:44,757 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:44,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2025-01-24 04:14:44,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:44,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:44,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:44,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:44,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:44,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:44,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:44,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:44,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:44,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:44,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:44,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:14:44,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-24 04:14:45,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:45,113 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:45,113 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:45,113 INFO L139 ounterexampleChecker]: Examining path program with hash -1903718035, occurence #1 [2025-01-24 04:14:45,113 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:45,113 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:45,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1400499236, now seen corresponding path program 4 times [2025-01-24 04:14:45,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:45,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665291457] [2025-01-24 04:14:45,114 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:14:45,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:45,120 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-01-24 04:14:45,130 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-01-24 04:14:45,130 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:14:45,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-24 04:14:45,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:45,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665291457] [2025-01-24 04:14:45,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665291457] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:14:45,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81867812] [2025-01-24 04:14:45,335 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:14:45,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:45,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:45,337 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) [2025-01-24 04:14:45,339 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 [2025-01-24 04:14:45,379 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-01-24 04:14:45,402 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-01-24 04:14:45,402 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:14:45,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:45,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-24 04:14:45,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:14:45,571 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 41 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-24 04:14:45,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:14:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 12 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-24 04:14:45,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81867812] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:14:45,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:14:45,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-01-24 04:14:45,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663196704] [2025-01-24 04:14:45,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:14:45,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-24 04:14:45,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:45,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-24 04:14:45,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2025-01-24 04:14:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:45,745 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:45,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.954545454545454) internal successors, (109), 21 states have internal predecessors, (109), 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) [2025-01-24 04:14:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:14:45,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:14:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:14:45,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-24 04:14:46,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:46,042 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:46,042 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:46,042 INFO L139 ounterexampleChecker]: Examining path program with hash -1903718035, occurence #2 [2025-01-24 04:14:46,042 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:14:46,042 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:14:46,042 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:46,042 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-24 04:14:46,042 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:46,042 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-24 04:14:46,043 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:46,043 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-24 04:14:46,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1746252046, now seen corresponding path program 1 times [2025-01-24 04:14:46,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:14:46,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299647568] [2025-01-24 04:14:46,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:46,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:46,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-24 04:14:46,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-24 04:14:46,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:46,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:14:46,082 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:14:46,082 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:14:46,082 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 25 is hopeless, skipping. [2025-01-24 04:14:46,082 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-01-24 04:14:46,082 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:46,082 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 38 is hopeless, skipping. [2025-01-24 04:14:46,082 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2025-01-24 04:14:46,082 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:46,082 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-01-24 04:14:46,082 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:46,082 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-01-24 04:14:46,082 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:46,082 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-24 04:14:46,082 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:46,082 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:14:46,082 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:46,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:46,083 INFO L85 PathProgramCache]: Analyzing trace with hash -580098692, now seen corresponding path program 5 times [2025-01-24 04:14:46,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:46,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062009284] [2025-01-24 04:14:46,083 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:14:46,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:46,092 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 54 statements into 4 equivalence classes. [2025-01-24 04:14:46,102 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 54 statements. [2025-01-24 04:14:46,102 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:14:46,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-24 04:14:46,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:46,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062009284] [2025-01-24 04:14:46,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062009284] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:46,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:14:46,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 04:14:46,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781345371] [2025-01-24 04:14:46,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:46,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:14:46,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:46,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:14:46,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:14:46,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:46,178 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:46,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:14:46,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:46,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:46,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:46,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:46,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:46,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:14:46,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:14:46,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:46,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:14:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:14:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:46,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,SelfDestructingSolverStorable9 [2025-01-24 04:14:46,250 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:46,250 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:46,251 INFO L139 ounterexampleChecker]: Examining path program with hash 1435495989, occurence #1 [2025-01-24 04:14:46,251 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:46,251 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:46,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:46,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1345623822, now seen corresponding path program 1 times [2025-01-24 04:14:46,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:46,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819111293] [2025-01-24 04:14:46,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:46,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:46,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-01-24 04:14:46,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-01-24 04:14:46,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:46,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:46,488 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:46,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:46,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819111293] [2025-01-24 04:14:46,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819111293] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:14:46,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603593742] [2025-01-24 04:14:46,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:46,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:46,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:46,491 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) [2025-01-24 04:14:46,492 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 [2025-01-24 04:14:46,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-01-24 04:14:46,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-01-24 04:14:46,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:46,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:46,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-24 04:14:46,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:14:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:46,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:14:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:47,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603593742] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:14:47,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:14:47,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 31 [2025-01-24 04:14:47,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199209295] [2025-01-24 04:14:47,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:14:47,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-24 04:14:47,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:47,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-24 04:14:47,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=776, Unknown=0, NotChecked=0, Total=992 [2025-01-24 04:14:47,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:47,003 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:47,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.125) internal successors, (132), 31 states have internal predecessors, (132), 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) [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:14:47,145 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 [2025-01-24 04:14:47,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-01-24 04:14:47,340 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:14:47,340 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:47,340 INFO L139 ounterexampleChecker]: Examining path program with hash 1435495989, occurence #2 [2025-01-24 04:14:47,340 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:14:47,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:14:47,340 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:47,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 04:14:47,340 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:47,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 04:14:47,340 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:47,340 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-24 04:14:47,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:47,361 INFO L85 PathProgramCache]: Analyzing trace with hash -170314556, now seen corresponding path program 1 times [2025-01-24 04:14:47,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:14:47,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815941568] [2025-01-24 04:14:47,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:47,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:47,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-24 04:14:47,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-24 04:14:47,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:47,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:14:47,373 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:14:47,373 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:14:47,374 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-24 04:14:47,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:47,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1981770296, now seen corresponding path program 1 times [2025-01-24 04:14:47,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:14:47,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782641401] [2025-01-24 04:14:47,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:47,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-24 04:14:47,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-24 04:14:47,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:47,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:14:47,410 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:14:47,410 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:14:47,410 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 34 is hopeless, skipping. [2025-01-24 04:14:47,411 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-01-24 04:14:47,411 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:47,411 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 47 is hopeless, skipping. [2025-01-24 04:14:47,411 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-24 04:14:47,411 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:47,411 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-24 04:14:47,411 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:47,411 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2025-01-24 04:14:47,411 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:47,411 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-24 04:14:47,411 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:47,411 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:14:47,411 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:47,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:47,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1579434661, now seen corresponding path program 2 times [2025-01-24 04:14:47,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:47,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284315681] [2025-01-24 04:14:47,412 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:14:47,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:47,432 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-01-24 04:14:47,479 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-01-24 04:14:47,481 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:14:47,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:49,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:49,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284315681] [2025-01-24 04:14:49,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284315681] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:14:49,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033871792] [2025-01-24 04:14:49,796 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:14:49,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:49,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:49,798 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) [2025-01-24 04:14:49,799 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 [2025-01-24 04:14:49,841 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-01-24 04:14:49,872 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-01-24 04:14:49,872 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:14:49,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:49,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 61 conjuncts are in the unsatisfiable core [2025-01-24 04:14:49,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:14:50,021 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 23 treesize of output 1 [2025-01-24 04:14:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:50,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:14:52,468 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 281 treesize of output 251 [2025-01-24 04:14:52,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:14:52,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 2656 treesize of output 1774 [2025-01-24 04:15:12,483 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 1 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:12,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033871792] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:12,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:12,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 53 [2025-01-24 04:15:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047665865] [2025-01-24 04:15:12,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:12,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2025-01-24 04:15:12,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:12,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2025-01-24 04:15:12,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=524, Invalid=2338, Unknown=0, NotChecked=0, Total=2862 [2025-01-24 04:15:12,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:12,486 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:12,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 3.2962962962962963) internal successors, (178), 53 states have internal predecessors, (178), 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) [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:12,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:13,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:13,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-24 04:15:13,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:13,885 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:15:13,885 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:13,885 INFO L139 ounterexampleChecker]: Examining path program with hash 1435495989, occurence #3 [2025-01-24 04:15:13,885 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:15:13,885 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:15:13,885 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:13,885 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-24 04:15:13,886 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:13,886 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-24 04:15:13,886 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:13,886 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-24 04:15:13,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:13,899 INFO L85 PathProgramCache]: Analyzing trace with hash 278250879, now seen corresponding path program 1 times [2025-01-24 04:15:13,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:13,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685034446] [2025-01-24 04:15:13,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:13,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:13,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-24 04:15:13,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-24 04:15:13,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:13,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:13,920 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:13,920 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:13,920 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-24 04:15:13,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:13,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1059428339, now seen corresponding path program 1 times [2025-01-24 04:15:13,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:13,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479016021] [2025-01-24 04:15:13,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:13,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:13,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-24 04:15:13,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-24 04:15:13,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:13,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:13,969 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:13,969 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:13,970 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 41 is hopeless, skipping. [2025-01-24 04:15:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-01-24 04:15:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:13,970 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 54 is hopeless, skipping. [2025-01-24 04:15:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-24 04:15:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2025-01-24 04:15:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2025-01-24 04:15:13,970 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:13,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-24 04:15:13,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:13,970 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:15:13,970 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:13,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:13,970 INFO L85 PathProgramCache]: Analyzing trace with hash 510152078, now seen corresponding path program 3 times [2025-01-24 04:15:13,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:13,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434720734] [2025-01-24 04:15:13,970 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:15:13,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:13,984 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 70 statements into 7 equivalence classes. [2025-01-24 04:15:14,024 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 66 of 70 statements. [2025-01-24 04:15:14,024 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-24 04:15:14,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:14,594 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-24 04:15:14,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:14,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434720734] [2025-01-24 04:15:14,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434720734] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:14,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212627940] [2025-01-24 04:15:14,594 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:15:14,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:14,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:14,596 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) [2025-01-24 04:15:14,598 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 [2025-01-24 04:15:14,650 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 70 statements into 7 equivalence classes. [2025-01-24 04:15:14,698 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 66 of 70 statements. [2025-01-24 04:15:14,698 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-24 04:15:14,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:14,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-01-24 04:15:14,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 15 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-24 04:15:15,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:15,646 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:15:15,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 176 treesize of output 284 [2025-01-24 04:15:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 69 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-24 04:15:16,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212627940] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:16,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:16,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2025-01-24 04:15:16,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411614509] [2025-01-24 04:15:16,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:16,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-24 04:15:16,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:16,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-24 04:15:16,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2025-01-24 04:15:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:16,012 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:16,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.71875) internal successors, (151), 31 states have internal predecessors, (151), 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) [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:16,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:15:16,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-24 04:15:16,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-24 04:15:16,854 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:15:16,854 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:16,854 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #1 [2025-01-24 04:15:16,854 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:15:16,854 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:16,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1741179842, now seen corresponding path program 4 times [2025-01-24 04:15:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553506840] [2025-01-24 04:15:16,854 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:15:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:16,862 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 78 statements into 2 equivalence classes. [2025-01-24 04:15:16,879 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-24 04:15:16,879 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:15:16,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 8 proven. 77 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-24 04:15:17,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:17,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553506840] [2025-01-24 04:15:17,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553506840] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:17,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412868064] [2025-01-24 04:15:17,623 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:15:17,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:17,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:17,625 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) [2025-01-24 04:15:17,626 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 [2025-01-24 04:15:17,679 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 78 statements into 2 equivalence classes. [2025-01-24 04:15:17,711 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-24 04:15:17,711 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:15:17,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:17,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 69 conjuncts are in the unsatisfiable core [2025-01-24 04:15:17,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:18,587 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 15 proven. 147 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:15:18,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:19,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:15:19,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 211 treesize of output 400 [2025-01-24 04:15:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-24 04:15:19,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412868064] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:19,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:19,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 25, 14] total 50 [2025-01-24 04:15:19,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121471501] [2025-01-24 04:15:19,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:19,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2025-01-24 04:15:19,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:19,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2025-01-24 04:15:19,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=439, Invalid=2111, Unknown=0, NotChecked=0, Total=2550 [2025-01-24 04:15:19,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:19,926 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:19,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.980392156862745) internal successors, (203), 50 states have internal predecessors, (203), 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) [2025-01-24 04:15:19,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:15:19,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:15:21,236 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 [2025-01-24 04:15:21,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:21,431 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:15:21,431 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:21,431 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #2 [2025-01-24 04:15:21,431 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:15:21,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:15:21,431 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-24 04:15:21,431 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:21,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-24 04:15:21,431 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:21,431 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-24 04:15:21,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:21,448 INFO L85 PathProgramCache]: Analyzing trace with hash 278250915, now seen corresponding path program 1 times [2025-01-24 04:15:21,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:21,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354768465] [2025-01-24 04:15:21,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:21,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:21,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-24 04:15:21,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-24 04:15:21,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:21,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:21,463 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:21,463 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:21,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-24 04:15:21,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:21,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1059428375, now seen corresponding path program 1 times [2025-01-24 04:15:21,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:21,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315790382] [2025-01-24 04:15:21,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:21,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:21,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-24 04:15:21,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-24 04:15:21,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:21,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:21,498 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:21,498 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:21,498 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 41 is hopeless, skipping. [2025-01-24 04:15:21,498 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-01-24 04:15:21,498 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,498 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2025-01-24 04:15:21,498 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-01-24 04:15:21,499 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-01-24 04:15:21,499 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,499 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 69 is hopeless, skipping. [2025-01-24 04:15:21,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2025-01-24 04:15:21,499 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2025-01-24 04:15:21,499 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2025-01-24 04:15:21,499 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 85 [2025-01-24 04:15:21,499 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,500 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-01-24 04:15:21,500 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:21,500 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-24 04:15:21,500 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,500 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:15:21,500 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:21,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:21,500 INFO L85 PathProgramCache]: Analyzing trace with hash -667139879, now seen corresponding path program 5 times [2025-01-24 04:15:21,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:21,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409206752] [2025-01-24 04:15:21,500 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:15:21,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:21,509 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 91 statements into 7 equivalence classes. [2025-01-24 04:15:21,672 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 91 of 91 statements. [2025-01-24 04:15:21,672 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-24 04:15:21,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:25,725 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 4 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:25,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:25,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409206752] [2025-01-24 04:15:25,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409206752] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:25,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366673331] [2025-01-24 04:15:25,725 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:15:25,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:25,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:25,728 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) [2025-01-24 04:15:25,730 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 [2025-01-24 04:15:25,786 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 91 statements into 7 equivalence classes. [2025-01-24 04:15:25,871 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 91 of 91 statements. [2025-01-24 04:15:25,872 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-24 04:15:25,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:25,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 78 conjuncts are in the unsatisfiable core [2025-01-24 04:15:25,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 15 proven. 192 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:15:27,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:28,659 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:15:28,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 244 treesize of output 534 [2025-01-24 04:15:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 23 proven. 107 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-24 04:15:29,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366673331] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:29,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:29,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27, 16] total 71 [2025-01-24 04:15:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193516388] [2025-01-24 04:15:29,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:29,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2025-01-24 04:15:29,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:29,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2025-01-24 04:15:29,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=520, Invalid=4592, Unknown=0, NotChecked=0, Total=5112 [2025-01-24 04:15:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:29,443 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:29,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 3.5277777777777777) internal successors, (254), 71 states have internal predecessors, (254), 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) [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:15:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:31,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:15:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-24 04:15:31,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-24 04:15:31,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:31,726 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:15:31,727 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:31,727 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #3 [2025-01-24 04:15:31,727 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:15:31,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:15:31,727 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-24 04:15:31,727 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:31,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-24 04:15:31,727 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:31,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-24 04:15:31,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:31,740 INFO L85 PathProgramCache]: Analyzing trace with hash 278250937, now seen corresponding path program 1 times [2025-01-24 04:15:31,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:31,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5572121] [2025-01-24 04:15:31,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:31,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:31,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-24 04:15:31,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-24 04:15:31,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:31,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:31,751 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:31,751 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:31,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-24 04:15:31,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:31,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1059428397, now seen corresponding path program 1 times [2025-01-24 04:15:31,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:31,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597578683] [2025-01-24 04:15:31,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:31,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:31,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-24 04:15:31,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-24 04:15:31,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:31,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:31,785 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:31,785 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:31,785 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 41 is hopeless, skipping. [2025-01-24 04:15:31,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-01-24 04:15:31,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2025-01-24 04:15:31,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-01-24 04:15:31,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-01-24 04:15:31,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,786 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 69 is hopeless, skipping. [2025-01-24 04:15:31,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2025-01-24 04:15:31,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2025-01-24 04:15:31,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2025-01-24 04:15:31,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2025-01-24 04:15:31,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,787 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2025-01-24 04:15:31,787 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,787 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-01-24 04:15:31,787 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:31,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2025-01-24 04:15:31,788 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:31,788 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:15:31,788 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:31,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:31,789 INFO L85 PathProgramCache]: Analyzing trace with hash -280536738, now seen corresponding path program 6 times [2025-01-24 04:15:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:31,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207319610] [2025-01-24 04:15:31,789 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 04:15:31,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:31,797 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 94 statements into 7 equivalence classes. [2025-01-24 04:15:31,895 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 94 of 94 statements. [2025-01-24 04:15:31,895 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-01-24 04:15:31,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:35,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:35,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207319610] [2025-01-24 04:15:35,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207319610] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:35,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058413367] [2025-01-24 04:15:35,689 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 04:15:35,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:35,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:35,691 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:35,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-24 04:15:35,762 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 94 statements into 7 equivalence classes. [2025-01-24 04:15:36,691 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 94 of 94 statements. [2025-01-24 04:15:36,691 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-01-24 04:15:36,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:36,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 83 conjuncts are in the unsatisfiable core [2025-01-24 04:15:36,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 15 proven. 198 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:15:38,837 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:41,938 INFO L349 Elim1Store]: treesize reduction 372, result has 49.8 percent of original size [2025-01-24 04:15:41,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 278 treesize of output 434 [2025-01-24 04:15:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-24 04:15:42,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058413367] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:42,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:42,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 28, 18] total 75 [2025-01-24 04:15:42,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899912107] [2025-01-24 04:15:42,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:42,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2025-01-24 04:15:42,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:42,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2025-01-24 04:15:42,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1009, Invalid=4691, Unknown=0, NotChecked=0, Total=5700 [2025-01-24 04:15:42,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:42,417 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:42,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 3.4473684210526314) internal successors, (262), 75 states have internal predecessors, (262), 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) [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-24 04:15:42,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-24 04:15:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-24 04:15:46,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-24 04:15:46,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24 [2025-01-24 04:15:46,434 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:15:46,434 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:46,434 INFO L139 ounterexampleChecker]: Examining path program with hash 1600448353, occurence #1 [2025-01-24 04:15:46,434 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:15:46,434 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:46,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:46,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1220728755, now seen corresponding path program 7 times [2025-01-24 04:15:46,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:46,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230580300] [2025-01-24 04:15:46,434 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-24 04:15:46,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:46,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-24 04:15:46,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-24 04:15:46,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:46,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 40 proven. 113 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-01-24 04:15:46,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:46,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230580300] [2025-01-24 04:15:46,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230580300] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:46,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455542862] [2025-01-24 04:15:46,659 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-24 04:15:46,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:46,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:46,661 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:46,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-24 04:15:46,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-24 04:15:46,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-24 04:15:46,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:46,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:46,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-24 04:15:46,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:46,858 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 38 proven. 97 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-01-24 04:15:46,858 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:47,220 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 29 proven. 153 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2025-01-24 04:15:47,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455542862] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:47,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:47,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 20] total 28 [2025-01-24 04:15:47,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556971285] [2025-01-24 04:15:47,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:47,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-24 04:15:47,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:47,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-24 04:15:47,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=500, Unknown=0, NotChecked=0, Total=812 [2025-01-24 04:15:47,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:47,221 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:47,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.827586206896552) internal successors, (169), 28 states have internal predecessors, (169), 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) [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-01-24 04:15:47,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-24 04:15:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-01-24 04:15:47,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:15:47,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-24 04:15:47,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-01-24 04:15:47,958 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:15:47,958 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:47,958 INFO L139 ounterexampleChecker]: Examining path program with hash -1035686994, occurence #1 [2025-01-24 04:15:47,958 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:15:47,958 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:47,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:47,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1548225829, now seen corresponding path program 8 times [2025-01-24 04:15:47,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:47,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330373056] [2025-01-24 04:15:47,959 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:15:47,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:47,967 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-01-24 04:15:48,036 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-01-24 04:15:48,036 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:15:48,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 1 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:57,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:57,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330373056] [2025-01-24 04:15:57,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330373056] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:57,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561598569] [2025-01-24 04:15:57,349 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:15:57,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:57,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:57,351 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:57,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-24 04:15:57,416 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-01-24 04:15:57,462 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-01-24 04:15:57,463 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:15:57,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:57,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 99 conjuncts are in the unsatisfiable core [2025-01-24 04:15:57,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 15 proven. 262 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:16:00,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:16:03,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:16:03,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 347 treesize of output 1060 [2025-01-24 04:16:05,735 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 16 proven. 171 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-01-24 04:16:05,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561598569] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:16:05,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:16:05,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 34, 22] total 90 [2025-01-24 04:16:05,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801474759] [2025-01-24 04:16:05,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:16:05,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2025-01-24 04:16:05,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:16:05,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2025-01-24 04:16:05,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=7696, Unknown=0, NotChecked=0, Total=8190 [2025-01-24 04:16:05,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:05,738 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:16:05,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 3.4395604395604398) internal successors, (313), 90 states have internal predecessors, (313), 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) [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:16:05,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:16:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-24 04:16:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:16:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-01-24 04:16:10,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-24 04:16:10,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-01-24 04:16:10,957 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:16:10,957 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:16:10,957 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #4 [2025-01-24 04:16:10,957 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:16:10,957 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:16:10,957 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:10,957 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-24 04:16:10,957 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:10,958 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-24 04:16:10,958 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:10,958 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-24 04:16:10,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:10,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1366220691, now seen corresponding path program 1 times [2025-01-24 04:16:10,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:10,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238928761] [2025-01-24 04:16:10,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:10,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:10,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-24 04:16:10,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-24 04:16:10,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:10,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:10,983 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:10,983 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:10,983 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-24 04:16:10,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:10,995 INFO L85 PathProgramCache]: Analyzing trace with hash -258272761, now seen corresponding path program 1 times [2025-01-24 04:16:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:10,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568423467] [2025-01-24 04:16:10,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:10,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:11,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-24 04:16:11,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-24 04:16:11,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:11,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:11,009 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:11,009 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:11,009 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 43 is hopeless, skipping. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 81 is hopeless, skipping. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2025-01-24 04:16:11,009 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:11,009 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2025-01-24 04:16:11,009 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:11,009 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:16:11,009 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:16:11,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:11,010 INFO L85 PathProgramCache]: Analyzing trace with hash 497115673, now seen corresponding path program 9 times [2025-01-24 04:16:11,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:16:11,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634271177] [2025-01-24 04:16:11,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:16:11,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:11,018 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 109 statements into 8 equivalence classes. [2025-01-24 04:16:11,062 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 109 of 109 statements. [2025-01-24 04:16:11,062 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-01-24 04:16:11,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 199 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-01-24 04:16:12,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:16:12,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634271177] [2025-01-24 04:16:12,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634271177] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:12,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083047534] [2025-01-24 04:16:12,227 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:16:12,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:12,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:16:12,229 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:16:12,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-24 04:16:12,298 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 109 statements into 8 equivalence classes. [2025-01-24 04:16:12,678 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 109 of 109 statements. [2025-01-24 04:16:12,678 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-01-24 04:16:12,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:12,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 88 conjuncts are in the unsatisfiable core [2025-01-24 04:16:12,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 15 proven. 287 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-24 04:16:14,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:16:16,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:16:16,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 312 treesize of output 864 [2025-01-24 04:16:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 49 proven. 158 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-24 04:16:17,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083047534] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:16:17,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:16:17,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 30, 20] total 64 [2025-01-24 04:16:17,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841073681] [2025-01-24 04:16:17,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:16:17,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2025-01-24 04:16:17,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:16:17,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2025-01-24 04:16:17,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=473, Invalid=3687, Unknown=0, NotChecked=0, Total=4160 [2025-01-24 04:16:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:17,427 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:16:17,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 4.138461538461539) internal successors, (269), 64 states have internal predecessors, (269), 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) [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2025-01-24 04:16:17,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-01-24 04:16:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-24 04:16:19,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-01-24 04:16:19,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27,SelfDestructingSolverStorable28 [2025-01-24 04:16:19,395 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:16:19,395 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:16:19,395 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #5 [2025-01-24 04:16:19,395 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:16:19,395 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:16:19,395 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,395 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-24 04:16:19,395 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:19,395 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-24 04:16:19,395 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:19,395 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-24 04:16:19,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:19,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1366220717, now seen corresponding path program 1 times [2025-01-24 04:16:19,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:19,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407466234] [2025-01-24 04:16:19,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:19,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:19,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-24 04:16:19,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-24 04:16:19,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:19,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:19,420 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:19,420 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:19,420 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-24 04:16:19,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash -258272735, now seen corresponding path program 1 times [2025-01-24 04:16:19,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:19,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761009350] [2025-01-24 04:16:19,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:19,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-24 04:16:19,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-24 04:16:19,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:19,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:19,453 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:19,453 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:19,453 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 43 is hopeless, skipping. [2025-01-24 04:16:19,453 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 81 is hopeless, skipping. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 104 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 106 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-01-24 04:16:19,454 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:19,454 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-24 04:16:19,454 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:19,454 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:16:19,454 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:16:19,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:19,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2099269602, now seen corresponding path program 10 times [2025-01-24 04:16:19,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:16:19,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567153434] [2025-01-24 04:16:19,455 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:16:19,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:19,467 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 112 statements into 2 equivalence classes. [2025-01-24 04:16:19,489 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-01-24 04:16:19,490 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:16:19,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 7 proven. 206 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-01-24 04:16:20,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:16:20,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567153434] [2025-01-24 04:16:20,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567153434] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:20,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074037982] [2025-01-24 04:16:20,597 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:16:20,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:20,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:16:20,599 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:16:20,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-24 04:16:20,672 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 112 statements into 2 equivalence classes. [2025-01-24 04:16:20,708 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-01-24 04:16:20,708 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:16:20,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:20,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 91 conjuncts are in the unsatisfiable core [2025-01-24 04:16:20,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 15 proven. 290 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-24 04:16:22,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:16:25,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:16:25,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 347 treesize of output 1060 [2025-01-24 04:16:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 38 proven. 183 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-24 04:16:26,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074037982] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:16:26,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:16:26,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 30, 22] total 68 [2025-01-24 04:16:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221988052] [2025-01-24 04:16:26,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:16:26,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2025-01-24 04:16:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:16:26,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2025-01-24 04:16:26,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=4196, Unknown=0, NotChecked=0, Total=4692 [2025-01-24 04:16:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:26,750 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:16:26,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 4.188405797101449) internal successors, (289), 68 states have internal predecessors, (289), 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) [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:16:26,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2025-01-24 04:16:26,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-01-24 04:16:26,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:16:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-24 04:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-24 04:16:29,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-24 04:16:29,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:29,698 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:16:29,698 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:16:29,699 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #6 [2025-01-24 04:16:29,699 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:16:29,699 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:16:29,699 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,699 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-24 04:16:29,699 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:29,699 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-24 04:16:29,699 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:29,699 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-24 04:16:29,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:29,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1366220753, now seen corresponding path program 1 times [2025-01-24 04:16:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:29,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128480470] [2025-01-24 04:16:29,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:29,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:29,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-24 04:16:29,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-24 04:16:29,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:29,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:29,724 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:29,724 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:29,724 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-24 04:16:29,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:29,736 INFO L85 PathProgramCache]: Analyzing trace with hash -258272699, now seen corresponding path program 1 times [2025-01-24 04:16:29,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:29,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232726472] [2025-01-24 04:16:29,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:29,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:29,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-24 04:16:29,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-24 04:16:29,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:29,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:29,750 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:29,750 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:29,750 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 43 is hopeless, skipping. [2025-01-24 04:16:29,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-24 04:16:29,750 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-24 04:16:29,750 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-01-24 04:16:29,750 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2025-01-24 04:16:29,750 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-24 04:16:29,750 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2025-01-24 04:16:29,750 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-24 04:16:29,750 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,750 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-01-24 04:16:29,750 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,750 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 91 is hopeless, skipping. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 111 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 114 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2025-01-24 04:16:29,751 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:29,751 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2025-01-24 04:16:29,751 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,751 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:16:29,751 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:16:29,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:29,751 INFO L85 PathProgramCache]: Analyzing trace with hash 38060281, now seen corresponding path program 11 times [2025-01-24 04:16:29,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:16:29,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996811326] [2025-01-24 04:16:29,751 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:16:29,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:29,760 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 125 statements into 10 equivalence classes. [2025-01-24 04:16:29,844 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 125 of 125 statements. [2025-01-24 04:16:29,845 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-01-24 04:16:29,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 419 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:34,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:16:34,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996811326] [2025-01-24 04:16:34,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996811326] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:34,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815609117] [2025-01-24 04:16:34,423 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:16:34,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:34,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:16:34,425 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:16:34,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-24 04:16:34,504 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 125 statements into 10 equivalence classes. [2025-01-24 04:16:34,710 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 125 of 125 statements. [2025-01-24 04:16:34,710 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-01-24 04:16:34,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:34,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 102 conjuncts are in the unsatisfiable core [2025-01-24 04:16:34,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 15 proven. 394 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-24 04:16:38,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:16:42,226 INFO L349 Elim1Store]: treesize reduction 550, result has 53.7 percent of original size [2025-01-24 04:16:42,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 380 treesize of output 724 [2025-01-24 04:16:42,832 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 85 proven. 229 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-24 04:16:42,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815609117] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:16:42,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:16:42,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 34, 24] total 96 [2025-01-24 04:16:42,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420703727] [2025-01-24 04:16:42,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:16:42,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2025-01-24 04:16:42,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:16:42,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2025-01-24 04:16:42,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=677, Invalid=8635, Unknown=0, NotChecked=0, Total=9312 [2025-01-24 04:16:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:42,835 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:16:42,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.618556701030928) internal successors, (351), 96 states have internal predecessors, (351), 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) [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-24 04:16:42,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-24 04:16:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-01-24 04:16:47,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-24 04:16:47,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35 [2025-01-24 04:16:47,971 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:16:47,971 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:16:47,971 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #7 [2025-01-24 04:16:47,971 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:16:47,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:16:47,971 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:47,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-24 04:16:47,971 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:47,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-24 04:16:47,971 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:47,971 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-24 04:16:47,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:47,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1827055996, now seen corresponding path program 1 times [2025-01-24 04:16:47,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:47,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961162401] [2025-01-24 04:16:47,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:47,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:47,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-24 04:16:47,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:16:47,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:47,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:47,994 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:47,994 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:47,994 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-01-24 04:16:48,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:48,007 INFO L85 PathProgramCache]: Analyzing trace with hash 166395632, now seen corresponding path program 1 times [2025-01-24 04:16:48,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:48,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027901996] [2025-01-24 04:16:48,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:48,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:48,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-24 04:16:48,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-24 04:16:48,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:48,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:48,020 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:48,020 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:48,020 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 44 is hopeless, skipping. [2025-01-24 04:16:48,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2025-01-24 04:16:48,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2025-01-24 04:16:48,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2025-01-24 04:16:48,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-24 04:16:48,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-01-24 04:16:48,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2025-01-24 04:16:48,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2025-01-24 04:16:48,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 92 is hopeless, skipping. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 106 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 118 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2025-01-24 04:16:48,021 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:48,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 127 [2025-01-24 04:16:48,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:48,021 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:16:48,021 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:16:48,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:48,021 INFO L85 PathProgramCache]: Analyzing trace with hash -703413, now seen corresponding path program 12 times [2025-01-24 04:16:48,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:16:48,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623543609] [2025-01-24 04:16:48,021 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 04:16:48,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:48,030 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 129 statements into 10 equivalence classes. [2025-01-24 04:16:48,113 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 129 of 129 statements. [2025-01-24 04:16:48,113 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-01-24 04:16:48,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:50,052 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 18 proven. 307 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-01-24 04:16:50,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:16:50,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623543609] [2025-01-24 04:16:50,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623543609] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:50,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470020413] [2025-01-24 04:16:50,052 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 04:16:50,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:50,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:16:50,054 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:16:50,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-24 04:16:50,140 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 129 statements into 10 equivalence classes. [2025-01-24 04:16:50,904 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 129 of 129 statements. [2025-01-24 04:16:50,904 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-01-24 04:16:50,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:50,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 121 conjuncts are in the unsatisfiable core [2025-01-24 04:16:50,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:51,262 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 [2025-01-24 04:16:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 15 proven. 438 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:16:53,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:16:58,433 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 460 treesize of output 412 [2025-01-24 04:17:12,225 WARN L286 SmtUtils]: Spent 13.10s on a formula simplification that was a NOOP. DAG size: 515 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-01-24 04:17:12,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:17:12,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 342370 treesize of output 173719 [2025-01-24 04:17:22,216 WARN L286 SmtUtils]: Spent 9.91s on a formula simplification. DAG size of input: 21164 DAG size of output: 738 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-01-24 04:21:14,931 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-24 04:21:14,931 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 101 [2025-01-24 04:21:14,932 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-24 04:21:14,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-01-24 04:21:15,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37,SelfDestructingSolverStorable38 [2025-01-24 04:21:15,139 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 [2025-01-24 04:21:15,140 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 70 more [2025-01-24 04:21:15,146 INFO L158 Benchmark]: Toolchain (without parser) took 393990.62ms. Allocated memory was 100.7MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 75.2MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2025-01-24 04:21:15,147 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 04:21:15,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.75ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 61.2MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-24 04:21:15,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.08ms. Allocated memory is still 100.7MB. Free memory was 61.2MB in the beginning and 60.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 04:21:15,148 INFO L158 Benchmark]: Boogie Preprocessor took 14.62ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 58.8MB in the end (delta: 775.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 04:21:15,148 INFO L158 Benchmark]: RCFGBuilder took 503.69ms. Allocated memory is still 100.7MB. Free memory was 58.5MB in the beginning and 62.0MB in the end (delta: -3.6MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2025-01-24 04:21:15,148 INFO L158 Benchmark]: TraceAbstraction took 393224.53ms. Allocated memory was 100.7MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 61.5MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2025-01-24 04:21:15,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.75ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 61.2MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.08ms. Allocated memory is still 100.7MB. Free memory was 61.2MB in the beginning and 60.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.62ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 58.8MB in the end (delta: 775.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 503.69ms. Allocated memory is still 100.7MB. Free memory was 58.5MB in the beginning and 62.0MB in the end (delta: -3.6MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * TraceAbstraction took 393224.53ms. Allocated memory was 100.7MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 61.5MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/popl20-send-receive-alt.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.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 d2a575889db2e07e0d6a3fd2f8635ba39d2afc2713d706bcd4d4aaa862bed792 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-24 04:21:16,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-24 04:21:16,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-01-24 04:21:16,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-24 04:21:16,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-24 04:21:16,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-24 04:21:16,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-24 04:21:16,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-24 04:21:16,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-24 04:21:16,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-24 04:21:16,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-24 04:21:16,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-24 04:21:16,949 INFO L153 SettingsManager]: * Use SBE=true [2025-01-24 04:21:16,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-24 04:21:16,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-24 04:21:16,949 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-24 04:21:16,950 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-24 04:21:16,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-24 04:21:16,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-24 04:21:16,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-24 04:21:16,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-24 04:21:16,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 04:21:16,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-24 04:21:16,951 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-01-24 04:21:16,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-24 04:21:16,952 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-24 04:21:16,953 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 -> d2a575889db2e07e0d6a3fd2f8635ba39d2afc2713d706bcd4d4aaa862bed792 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 -> NECESSARY_AND_SUFFICIENT [2025-01-24 04:21:17,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-24 04:21:17,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-24 04:21:17,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-24 04:21:17,189 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-24 04:21:17,189 INFO L274 PluginConnector]: CDTParser initialized [2025-01-24 04:21:17,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2025-01-24 04:21:18,338 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/06cf78e5b/e709f5538c0a4674a2c1010eb69ba983/FLAGc75b2ca44 [2025-01-24 04:21:18,525 INFO L384 CDTParser]: Found 1 translation units. [2025-01-24 04:21:18,526 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2025-01-24 04:21:18,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/06cf78e5b/e709f5538c0a4674a2c1010eb69ba983/FLAGc75b2ca44 [2025-01-24 04:21:18,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/06cf78e5b/e709f5538c0a4674a2c1010eb69ba983 [2025-01-24 04:21:18,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-24 04:21:18,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-24 04:21:18,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-24 04:21:18,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-24 04:21:18,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-24 04:21:18,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:21:18" (1/1) ... [2025-01-24 04:21:18,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5212c2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:18, skipping insertion in model container [2025-01-24 04:21:18,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:21:18" (1/1) ... [2025-01-24 04:21:18,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-24 04:21:19,048 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/popl20-send-receive-alt.wvr.c[2676,2689] [2025-01-24 04:21:19,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 04:21:19,069 INFO L200 MainTranslator]: Completed pre-run [2025-01-24 04:21:19,120 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/popl20-send-receive-alt.wvr.c[2676,2689] [2025-01-24 04:21:19,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 04:21:19,138 INFO L204 MainTranslator]: Completed translation [2025-01-24 04:21:19,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19 WrapperNode [2025-01-24 04:21:19,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-24 04:21:19,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-24 04:21:19,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-24 04:21:19,142 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-24 04:21:19,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,164 INFO L138 Inliner]: procedures = 25, calls = 27, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 131 [2025-01-24 04:21:19,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-24 04:21:19,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-24 04:21:19,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-24 04:21:19,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-24 04:21:19,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,188 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-24 04:21:19,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-24 04:21:19,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-24 04:21:19,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-24 04:21:19,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (1/1) ... [2025-01-24 04:21:19,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 04:21:19,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:19,230 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) [2025-01-24 04:21:19,233 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 [2025-01-24 04:21:19,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-24 04:21:19,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-24 04:21:19,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-24 04:21:19,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-24 04:21:19,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-24 04:21:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-01-24 04:21:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-24 04:21:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-24 04:21:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-24 04:21:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-01-24 04:21:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-24 04:21:19,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-24 04:21:19,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-01-24 04:21:19,253 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-24 04:21:19,332 INFO L234 CfgBuilder]: Building ICFG [2025-01-24 04:21:19,334 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-24 04:21:19,520 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-24 04:21:19,520 INFO L283 CfgBuilder]: Performing block encoding [2025-01-24 04:21:19,708 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-24 04:21:19,709 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-24 04:21:19,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:21:19 BoogieIcfgContainer [2025-01-24 04:21:19,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-24 04:21:19,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-24 04:21:19,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-24 04:21:19,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-24 04:21:19,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 04:21:18" (1/3) ... [2025-01-24 04:21:19,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a128776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:21:19, skipping insertion in model container [2025-01-24 04:21:19,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:19" (2/3) ... [2025-01-24 04:21:19,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a128776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:21:19, skipping insertion in model container [2025-01-24 04:21:19,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:21:19" (3/3) ... [2025-01-24 04:21:19,718 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2025-01-24 04:21:19,728 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-24 04:21:19,729 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-send-receive-alt.wvr.c that has 3 procedures, 27 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-24 04:21:19,729 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-24 04:21:19,771 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-24 04:21:19,803 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 04:21:19,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-24 04:21:19,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:19,807 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) [2025-01-24 04:21:19,809 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 [2025-01-24 04:21:19,865 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-24 04:21:19,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-24 04:21:19,883 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;@1dfb9f01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 04:21:19,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-24 04:21:20,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:21:20,018 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:21:20,019 INFO L139 ounterexampleChecker]: Examining path program with hash -1533377350, occurence #1 [2025-01-24 04:21:20,019 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:21:20,019 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:21:20,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:21:20,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1005052114, now seen corresponding path program 1 times [2025-01-24 04:21:20,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:21:20,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639800468] [2025-01-24 04:21:20,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:21:20,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:20,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:20,051 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) [2025-01-24 04:21:20,052 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 [2025-01-24 04:21:20,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-24 04:21:20,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-24 04:21:20,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:21:20,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:21:20,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-24 04:21:20,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:21:20,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:20,134 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:21:20,134 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:21:20,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639800468] [2025-01-24 04:21:20,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639800468] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:21:20,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:21:20,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-24 04:21:20,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959523066] [2025-01-24 04:21:20,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:21:20,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-24 04:21:20,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:21:20,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-24 04:21:20,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-24 04:21:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:20,155 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:21:20,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) 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) [2025-01-24 04:21:20,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:20,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:20,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-24 04:21:20,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:20,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:21:20,462 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:21:20,462 INFO L139 ounterexampleChecker]: Examining path program with hash -2010173722, occurence #1 [2025-01-24 04:21:20,462 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:21:20,462 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:21:20,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:21:20,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1754189697, now seen corresponding path program 1 times [2025-01-24 04:21:20,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:21:20,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36292067] [2025-01-24 04:21:20,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:21:20,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:20,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:20,465 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) [2025-01-24 04:21:20,466 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 [2025-01-24 04:21:20,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-24 04:21:20,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-24 04:21:20,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:21:20,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:21:20,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-24 04:21:20,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:21:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:20,614 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:21:20,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:21:20,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36292067] [2025-01-24 04:21:20,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36292067] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:21:20,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:21:20,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-24 04:21:20,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045980031] [2025-01-24 04:21:20,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:21:20,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:21:20,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:21:20,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:21:20,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:21:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:20,616 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:21:20,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 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) [2025-01-24 04:21:20,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:20,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:20,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:20,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-24 04:21:20,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:20,874 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:21:20,874 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:21:20,874 INFO L139 ounterexampleChecker]: Examining path program with hash -2010173722, occurence #2 [2025-01-24 04:21:20,874 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:21:20,874 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:21:20,875 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:21:20,875 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-24 04:21:20,886 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:21:20,886 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-24 04:21:20,886 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:21:20,887 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-24 04:21:20,887 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:21:20,887 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-24 04:21:20,887 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:21:20,887 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-24 04:21:20,887 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:21:20,887 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-24 04:21:20,887 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:21:20,887 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:21:20,887 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:21:20,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:21:20,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1944650792, now seen corresponding path program 1 times [2025-01-24 04:21:20,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:21:20,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765160576] [2025-01-24 04:21:20,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:21:20,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:20,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:20,890 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) [2025-01-24 04:21:20,891 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 [2025-01-24 04:21:20,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-24 04:21:20,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-24 04:21:20,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:21:20,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:21:20,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-24 04:21:20,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:21:21,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:21,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:21:21,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:21,202 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:21:21,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765160576] [2025-01-24 04:21:21,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765160576] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:21:21,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:21:21,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-01-24 04:21:21,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381927665] [2025-01-24 04:21:21,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 04:21:21,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-24 04:21:21,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:21:21,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-24 04:21:21,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-01-24 04:21:21,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:21,203 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:21:21,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 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) [2025-01-24 04:21:21,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:21,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:21,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:21:21,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-24 04:21:21,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:21,687 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:21:21,687 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:21:21,687 INFO L139 ounterexampleChecker]: Examining path program with hash -1598822965, occurence #1 [2025-01-24 04:21:21,687 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:21:21,687 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:21:21,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:21:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 452659213, now seen corresponding path program 1 times [2025-01-24 04:21:21,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:21:21,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [598799871] [2025-01-24 04:21:21,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:21:21,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:21,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:21,689 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) [2025-01-24 04:21:21,690 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 [2025-01-24 04:21:21,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-24 04:21:21,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-24 04:21:21,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:21:21,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:21:21,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-24 04:21:21,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:21:21,989 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:21,990 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:21:22,651 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:22,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:21:22,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598799871] [2025-01-24 04:21:22,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598799871] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:21:22,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:21:22,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-01-24 04:21:22,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519572963] [2025-01-24 04:21:22,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 04:21:22,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-24 04:21:22,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:21:22,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-24 04:21:22,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2025-01-24 04:21:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:22,654 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:21:22,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 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) [2025-01-24 04:21:22,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:22,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:22,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:21:22,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:21:23,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:21:23,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-24 04:21:23,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:23,249 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:21:23,249 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:21:23,249 INFO L139 ounterexampleChecker]: Examining path program with hash 1680590329, occurence #1 [2025-01-24 04:21:23,249 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:21:23,249 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:21:23,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:21:23,249 INFO L85 PathProgramCache]: Analyzing trace with hash -199950353, now seen corresponding path program 2 times [2025-01-24 04:21:23,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:21:23,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916825035] [2025-01-24 04:21:23,250 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:21:23,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:23,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:23,251 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) [2025-01-24 04:21:23,252 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 [2025-01-24 04:21:23,288 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-01-24 04:21:23,306 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:21:23,306 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:21:23,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:21:23,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-24 04:21:23,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:21:23,424 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 [2025-01-24 04:21:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:23,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:21:24,325 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 63 treesize of output 57 [2025-01-24 04:21:24,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:21:24,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 104 treesize of output 98 [2025-01-24 04:21:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:25,496 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:21:25,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916825035] [2025-01-24 04:21:25,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916825035] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:21:25,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:21:25,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2025-01-24 04:21:25,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470240896] [2025-01-24 04:21:25,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 04:21:25,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-24 04:21:25,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:21:25,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-24 04:21:25,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2025-01-24 04:21:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:25,498 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:21:25,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 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) [2025-01-24 04:21:25,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:25,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:25,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:21:25,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:21:25,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:21:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:21:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:21:28,685 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 [2025-01-24 04:21:28,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:28,880 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:21:28,880 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:21:28,880 INFO L139 ounterexampleChecker]: Examining path program with hash 895780275, occurence #1 [2025-01-24 04:21:28,880 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:21:28,880 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:21:28,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:21:28,881 INFO L85 PathProgramCache]: Analyzing trace with hash 138573158, now seen corresponding path program 3 times [2025-01-24 04:21:28,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:21:28,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646338416] [2025-01-24 04:21:28,881 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:21:28,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:28,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:28,882 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) [2025-01-24 04:21:28,883 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 [2025-01-24 04:21:28,920 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 50 statements into 5 equivalence classes. [2025-01-24 04:21:28,948 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 46 of 50 statements. [2025-01-24 04:21:28,948 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-24 04:21:28,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:21:28,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-24 04:21:28,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:21:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-24 04:21:28,965 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:21:28,965 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:21:28,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646338416] [2025-01-24 04:21:28,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646338416] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:21:28,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:21:28,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 04:21:28,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598005694] [2025-01-24 04:21:28,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:21:28,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:21:28,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:21:28,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:21:28,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:21:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:28,966 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:21:28,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:21:28,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:28,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:28,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:21:28,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:21:28,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:21:28,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:21:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:21:29,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:21:29,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:21:29,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:21:29,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-24 04:21:29,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:29,315 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-24 04:21:29,315 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:21:29,315 INFO L139 ounterexampleChecker]: Examining path program with hash -1853163232, occurence #1 [2025-01-24 04:21:29,315 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:21:29,315 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:21:29,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:21:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1794598328, now seen corresponding path program 1 times [2025-01-24 04:21:29,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:21:29,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526659871] [2025-01-24 04:21:29,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:21:29,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:21:29,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:21:29,318 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) [2025-01-24 04:21:29,318 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 [2025-01-24 04:21:29,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-24 04:21:29,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-24 04:21:29,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:21:29,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:21:29,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-01-24 04:21:29,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:21:29,618 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 [2025-01-24 04:21:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:21:31,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:21:36,305 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 229 treesize of output 205 [2025-01-24 04:21:36,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:21:36,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 1509 treesize of output 1266 [2025-01-24 04:24:08,084 WARN L286 SmtUtils]: Spent 22.72s on a formula simplification. DAG size of input: 1265 DAG size of output: 311 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 04:24:23,293 WARN L286 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 312 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 04:24:53,024 WARN L286 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 314 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 04:25:09,911 WARN L286 SmtUtils]: Spent 6.82s on a formula simplification that was a NOOP. DAG size: 317 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 04:25:27,409 WARN L286 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 319 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 04:25:45,638 WARN L286 SmtUtils]: Spent 7.50s on a formula simplification that was a NOOP. DAG size: 320 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 04:26:02,442 WARN L286 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 320 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-24 04:26:02,445 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:26:02,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:26:02,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526659871] [2025-01-24 04:26:02,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526659871] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:26:02,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:26:02,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 42 [2025-01-24 04:26:02,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400940242] [2025-01-24 04:26:02,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 04:26:02,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-01-24 04:26:02,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:26:02,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-01-24 04:26:02,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=1375, Unknown=0, NotChecked=0, Total=1806 [2025-01-24 04:26:02,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:26:02,448 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:26:02,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.6744186046511627) internal successors, (115), 42 states have internal predecessors, (115), 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) [2025-01-24 04:26:02,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:26:02,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:26:02,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:26:02,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:26:02,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:26:02,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:26:02,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:28:32,130 WARN L286 SmtUtils]: Spent 2.48m on a formula simplification. DAG size of input: 1408 DAG size of output: 875 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15