./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 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 SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 20:52:29,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 20:52:29,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 20:52:29,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 20:52:29,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 20:52:29,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 20:52:29,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 20:52:29,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 20:52:29,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 20:52:29,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 20:52:29,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 20:52:29,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 20:52:29,728 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 20:52:29,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 20:52:29,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 20:52:29,729 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 20:52:29,729 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 -> SUFFICIENT [2025-01-23 20:52:29,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 20:52:29,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 20:52:29,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 20:52:29,971 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 20:52:29,971 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 20:52:29,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2025-01-23 20:52:31,140 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/95e464e5e/72858db9a5574cbd90477748cf9f57f4/FLAG2449261d7 [2025-01-23 20:52:31,333 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 20:52:31,333 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2025-01-23 20:52:31,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/95e464e5e/72858db9a5574cbd90477748cf9f57f4/FLAG2449261d7 [2025-01-23 20:52:31,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/95e464e5e/72858db9a5574cbd90477748cf9f57f4 [2025-01-23 20:52:31,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 20:52:31,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 20:52:31,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 20:52:31,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 20:52:31,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 20:52:31,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a8dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31, skipping insertion in model container [2025-01-23 20:52:31,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 20:52:31,841 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] [2025-01-23 20:52:31,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 20:52:31,854 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 20:52:31,903 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] [2025-01-23 20:52:31,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 20:52:31,918 INFO L204 MainTranslator]: Completed translation [2025-01-23 20:52:31,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31 WrapperNode [2025-01-23 20:52:31,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 20:52:31,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 20:52:31,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 20:52:31,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 20:52:31,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,941 INFO L138 Inliner]: procedures = 23, calls = 27, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 134 [2025-01-23 20:52:31,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 20:52:31,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 20:52:31,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 20:52:31,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 20:52:31,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,950 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 20:52:31,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 20:52:31,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 20:52:31,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 20:52:31,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (1/1) ... [2025-01-23 20:52:31,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 20:52:31,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:52:31,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 20:52:31,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 20:52:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 20:52:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 20:52:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 20:52:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 20:52:31,995 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 20:52:32,060 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 20:52:32,061 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 20:52:32,250 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 20:52:32,250 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 20:52:32,415 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 20:52:32,416 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-23 20:52:32,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 08:52:32 BoogieIcfgContainer [2025-01-23 20:52:32,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 20:52:32,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 20:52:32,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 20:52:32,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 20:52:32,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 08:52:31" (1/3) ... [2025-01-23 20:52:32,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699520c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 08:52:32, skipping insertion in model container [2025-01-23 20:52:32,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:52:31" (2/3) ... [2025-01-23 20:52:32,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699520c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 08:52:32, skipping insertion in model container [2025-01-23 20:52:32,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 08:52:32" (3/3) ... [2025-01-23 20:52:32,427 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2025-01-23 20:52:32,437 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 20:52:32,438 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. [2025-01-23 20:52:32,438 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 20:52:32,489 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 20:52:32,522 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 20:52:32,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 20:52:32,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:52:32,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 20:52:32,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 20:52:32,585 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 20:52:32,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 20:52:32,602 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;@21e4f9cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 20:52:32,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-23 20:52:32,726 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:32,726 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:32,726 INFO L139 ounterexampleChecker]: Examining path program with hash 127534330, occurence #1 [2025-01-23 20:52:32,726 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:52:32,726 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:32,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:32,730 INFO L85 PathProgramCache]: Analyzing trace with hash 2128902422, now seen corresponding path program 1 times [2025-01-23 20:52:32,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:32,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131311645] [2025-01-23 20:52:32,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:32,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:32,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-23 20:52:32,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-23 20:52:32,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:32,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:32,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:32,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131311645] [2025-01-23 20:52:32,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131311645] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:52:32,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:52:32,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 20:52:32,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931043964] [2025-01-23 20:52:32,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:52:32,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 20:52:32,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:32,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-23 20:52:32,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-23 20:52:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:32,878 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:32,879 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) [2025-01-23 20:52:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:32,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:32,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 20:52:32,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:32,941 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:32,941 INFO L139 ounterexampleChecker]: Examining path program with hash 2069437778, occurence #1 [2025-01-23 20:52:32,941 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:52:32,941 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:32,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:32,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1493925567, now seen corresponding path program 1 times [2025-01-23 20:52:32,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:32,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340425941] [2025-01-23 20:52:32,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:32,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:32,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-23 20:52:32,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-23 20:52:32,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:32,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:33,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:33,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340425941] [2025-01-23 20:52:33,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340425941] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:52:33,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:52:33,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 20:52:33,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750015795] [2025-01-23 20:52:33,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:52:33,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 20:52:33,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:33,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 20:52:33,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 20:52:33,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:33,097 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:33,097 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) [2025-01-23 20:52:33,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:33,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:33,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 20:52:33,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:33,245 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:33,246 INFO L139 ounterexampleChecker]: Examining path program with hash -368273689, occurence #1 [2025-01-23 20:52:33,246 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:52:33,246 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:33,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:33,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2124353199, now seen corresponding path program 1 times [2025-01-23 20:52:33,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:33,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419200690] [2025-01-23 20:52:33,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:33,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:33,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-23 20:52:33,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 20:52:33,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:33,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:33,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:33,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419200690] [2025-01-23 20:52:33,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419200690] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:52:33,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:52:33,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 20:52:33,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135667270] [2025-01-23 20:52:33,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:52:33,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:52:33,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:33,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:52:33,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 20:52:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:33,433 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:33,433 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) [2025-01-23 20:52:33,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:33,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:33,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:33,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:33,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:33,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 20:52:33,488 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:33,488 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:33,488 INFO L139 ounterexampleChecker]: Examining path program with hash -368273689, occurence #2 [2025-01-23 20:52:33,488 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:52:33,488 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:52:33,489 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:33,489 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-23 20:52:33,504 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:33,506 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-23 20:52:33,506 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:33,506 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-23 20:52:33,620 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 12 treesize of output 4 [2025-01-23 20:52:34,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:34,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1590888469, now seen corresponding path program 1 times [2025-01-23 20:52:34,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:52:34,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003699615] [2025-01-23 20:52:34,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:34,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-23 20:52:34,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-23 20:52:34,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:34,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:52:34,737 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:52:34,738 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:52:34,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-01-23 20:52:34,738 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:34,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-01-23 20:52:34,738 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:34,738 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 20:52:34,738 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:34,739 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-23 20:52:34,739 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:34,739 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:52:34,739 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:34,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:34,739 INFO L85 PathProgramCache]: Analyzing trace with hash -769624382, now seen corresponding path program 1 times [2025-01-23 20:52:34,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:34,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922057712] [2025-01-23 20:52:34,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:34,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:34,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-23 20:52:34,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-23 20:52:34,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:34,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:34,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:34,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:34,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922057712] [2025-01-23 20:52:34,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922057712] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:52:34,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059882291] [2025-01-23 20:52:34,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:34,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:52:34,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:52:34,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:52:35,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 20:52:35,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-23 20:52:35,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-23 20:52:35,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:35,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:35,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 20:52:35,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:52:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:35,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:52:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:35,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059882291] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:52:35,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:52:35,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2025-01-23 20:52:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816091287] [2025-01-23 20:52:35,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:52:35,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-23 20:52:35,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:35,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-23 20:52:35,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-01-23 20:52:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:35,277 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:35,277 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) [2025-01-23 20:52:35,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:35,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:35,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:35,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:35,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:35,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:35,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:35,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 20:52:35,619 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 [2025-01-23 20:52:35,619 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:35,620 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:35,620 INFO L139 ounterexampleChecker]: Examining path program with hash -368273689, occurence #3 [2025-01-23 20:52:35,620 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:52:35,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:52:35,620 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:35,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-23 20:52:35,620 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:35,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-23 20:52:35,620 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:35,621 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-01-23 20:52:35,711 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 12 treesize of output 4 [2025-01-23 20:52:36,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:36,768 INFO L85 PathProgramCache]: Analyzing trace with hash 350989635, now seen corresponding path program 1 times [2025-01-23 20:52:36,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:52:36,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37748492] [2025-01-23 20:52:36,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:36,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:36,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-23 20:52:36,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-23 20:52:36,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:36,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:52:36,786 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:52:36,786 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:52:36,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-23 20:52:36,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:36,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-23 20:52:36,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:36,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-23 20:52:36,786 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:36,786 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-01-23 20:52:36,786 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:36,786 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:52:36,786 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:36,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash -288616177, now seen corresponding path program 2 times [2025-01-23 20:52:36,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:36,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813395692] [2025-01-23 20:52:36,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:52:36,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:36,795 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-23 20:52:36,806 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 20:52:36,806 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:52:36,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:52:36,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813395692] [2025-01-23 20:52:36,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813395692] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:52:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289855828] [2025-01-23 20:52:36,885 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:52:36,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:52:36,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:52:36,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:52:36,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 20:52:36,924 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-23 20:52:36,943 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 20:52:36,943 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:52:36,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:36,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-23 20:52:36,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:52:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-23 20:52:36,971 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 20:52:36,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289855828] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:52:36,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-23 20:52:36,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-01-23 20:52:36,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658866405] [2025-01-23 20:52:36,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:52:36,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:52:36,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:36,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:52:36,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-23 20:52:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:36,973 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:36,973 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) [2025-01-23 20:52:36,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:36,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:36,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:36,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:36,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:37,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 20:52:37,271 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 [2025-01-23 20:52:37,271 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:37,271 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:37,271 INFO L139 ounterexampleChecker]: Examining path program with hash -1119342501, occurence #1 [2025-01-23 20:52:37,272 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:52:37,272 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:37,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:37,273 INFO L85 PathProgramCache]: Analyzing trace with hash -960800468, now seen corresponding path program 3 times [2025-01-23 20:52:37,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:37,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226224945] [2025-01-23 20:52:37,273 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:52:37,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:37,282 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 2 equivalence classes. [2025-01-23 20:52:37,302 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-01-23 20:52:37,303 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-23 20:52:37,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:52:37,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:37,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226224945] [2025-01-23 20:52:37,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226224945] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:52:37,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747250413] [2025-01-23 20:52:37,447 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:52:37,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:52:37,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:52:37,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:52:37,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 20:52:37,486 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 2 equivalence classes. [2025-01-23 20:52:37,501 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-01-23 20:52:37,502 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-23 20:52:37,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:37,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-23 20:52:37,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:52:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:52:37,579 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:52:37,628 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:52:37,628 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 [2025-01-23 20:52:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:52:37,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747250413] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:52:37,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:52:37,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2025-01-23 20:52:37,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92011480] [2025-01-23 20:52:37,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:52:37,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-23 20:52:37,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:37,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-23 20:52:37,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-23 20:52:37,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:37,706 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:37,706 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) [2025-01-23 20:52:37,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:37,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:37,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:37,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:37,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:37,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:52:37,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-23 20:52:38,084 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 [2025-01-23 20:52:38,084 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:38,084 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:38,084 INFO L139 ounterexampleChecker]: Examining path program with hash -1903718035, occurence #1 [2025-01-23 20:52:38,084 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:52:38,085 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:38,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:38,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1400499236, now seen corresponding path program 4 times [2025-01-23 20:52:38,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:38,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010196513] [2025-01-23 20:52:38,085 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:52:38,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:38,093 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-01-23 20:52:38,106 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-01-23 20:52:38,107 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:52:38,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-23 20:52:38,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:38,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010196513] [2025-01-23 20:52:38,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010196513] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:52:38,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149205168] [2025-01-23 20:52:38,296 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:52:38,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:52:38,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:52:38,298 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:52:38,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 20:52:38,334 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-01-23 20:52:38,354 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-01-23 20:52:38,354 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:52:38,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:38,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-23 20:52:38,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:52:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 41 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-23 20:52:38,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:52:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 12 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-23 20:52:38,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149205168] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:52:38,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:52:38,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-01-23 20:52:38,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655747614] [2025-01-23 20:52:38,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:52:38,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-23 20:52:38,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:38,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-23 20:52:38,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2025-01-23 20:52:38,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:38,659 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:38,659 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) [2025-01-23 20:52:38,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:38,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:38,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:38,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:38,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:38,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:52:38,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:38,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:38,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:38,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:52:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:52:38,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-23 20:52:38,935 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 [2025-01-23 20:52:38,936 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:38,936 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:38,936 INFO L139 ounterexampleChecker]: Examining path program with hash -1903718035, occurence #2 [2025-01-23 20:52:38,936 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:52:38,936 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:52:38,936 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:38,936 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-23 20:52:38,937 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:38,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-23 20:52:38,937 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:38,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 20:52:39,004 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 12 treesize of output 4 [2025-01-23 20:52:40,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:40,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1746252046, now seen corresponding path program 1 times [2025-01-23 20:52:40,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:52:40,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757627625] [2025-01-23 20:52:40,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:40,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:40,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-23 20:52:40,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-23 20:52:40,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:40,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:52:40,077 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:52:40,077 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:52:40,077 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 25 is hopeless, skipping. [2025-01-23 20:52:40,077 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-01-23 20:52:40,077 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:40,077 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 38 is hopeless, skipping. [2025-01-23 20:52:40,077 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2025-01-23 20:52:40,077 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:40,077 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-01-23 20:52:40,077 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:40,077 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-01-23 20:52:40,078 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:40,078 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-23 20:52:40,078 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:40,078 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:52:40,078 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:40,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:40,078 INFO L85 PathProgramCache]: Analyzing trace with hash -580098692, now seen corresponding path program 5 times [2025-01-23 20:52:40,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:40,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936789447] [2025-01-23 20:52:40,078 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 20:52:40,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:40,084 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 54 statements into 4 equivalence classes. [2025-01-23 20:52:40,089 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 54 statements. [2025-01-23 20:52:40,089 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:52:40,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-23 20:52:40,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:40,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936789447] [2025-01-23 20:52:40,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936789447] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:52:40,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:52:40,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 20:52:40,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792986225] [2025-01-23 20:52:40,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:52:40,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:52:40,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:40,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:52:40,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 20:52:40,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:40,169 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:40,169 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) [2025-01-23 20:52:40,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:40,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:40,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:40,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:40,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:40,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:52:40,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:52:40,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:52:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:52:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:40,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,SelfDestructingSolverStorable9 [2025-01-23 20:52:40,255 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:40,255 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:40,255 INFO L139 ounterexampleChecker]: Examining path program with hash 1435495989, occurence #1 [2025-01-23 20:52:40,255 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:52:40,255 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:40,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:40,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1345623822, now seen corresponding path program 1 times [2025-01-23 20:52:40,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:40,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219471977] [2025-01-23 20:52:40,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:40,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:40,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-01-23 20:52:40,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-01-23 20:52:40,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:40,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:40,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219471977] [2025-01-23 20:52:40,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219471977] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:52:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778274242] [2025-01-23 20:52:40,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:40,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:52:40,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:52:40,489 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:52:40,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-23 20:52:40,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-01-23 20:52:40,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-01-23 20:52:40,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:40,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:40,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-23 20:52:40,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:52:40,784 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:40,784 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:52:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:41,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778274242] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:52:41,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:52:41,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 31 [2025-01-23 20:52:41,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096164589] [2025-01-23 20:52:41,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:52:41,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-23 20:52:41,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:52:41,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-23 20:52:41,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=776, Unknown=0, NotChecked=0, Total=992 [2025-01-23 20:52:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:41,015 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:52:41,015 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) [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:41,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:52:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:52:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:52:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:52:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:52:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:52:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:52:41,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-23 20:52:41,390 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 [2025-01-23 20:52:41,391 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:52:41,391 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:52:41,391 INFO L139 ounterexampleChecker]: Examining path program with hash 1435495989, occurence #2 [2025-01-23 20:52:41,391 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:52:41,391 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:52:41,391 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:41,392 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-23 20:52:41,392 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:41,392 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-23 20:52:41,392 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:41,392 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 20:52:41,476 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 12 treesize of output 4 [2025-01-23 20:52:42,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:42,532 INFO L85 PathProgramCache]: Analyzing trace with hash -170314556, now seen corresponding path program 1 times [2025-01-23 20:52:42,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:52:42,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303864103] [2025-01-23 20:52:42,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:42,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:42,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-23 20:52:42,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-23 20:52:42,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:42,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:52:42,544 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:52:42,544 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:52:42,544 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-23 20:52:42,605 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 14 treesize of output 6 [2025-01-23 20:52:43,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1981770296, now seen corresponding path program 1 times [2025-01-23 20:52:43,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:52:43,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368990362] [2025-01-23 20:52:43,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:52:43,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:43,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-23 20:52:43,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-23 20:52:43,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:52:43,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:52:43,200 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:52:43,200 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:52:43,201 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 34 is hopeless, skipping. [2025-01-23 20:52:43,201 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-01-23 20:52:43,201 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:43,201 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 47 is hopeless, skipping. [2025-01-23 20:52:43,201 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-01-23 20:52:43,201 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:43,204 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-23 20:52:43,204 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:43,204 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2025-01-23 20:52:43,204 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:52:43,204 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 20:52:43,204 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:52:43,204 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:52:43,204 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:52:43,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:52:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1579434661, now seen corresponding path program 2 times [2025-01-23 20:52:43,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:52:43,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927618583] [2025-01-23 20:52:43,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:52:43,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:52:43,210 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-01-23 20:52:43,252 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-01-23 20:52:43,252 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:52:43,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:45,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:52:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927618583] [2025-01-23 20:52:45,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927618583] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:52:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023583617] [2025-01-23 20:52:45,616 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:52:45,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:52:45,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:52:45,619 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:52:45,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-23 20:52:45,659 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-01-23 20:52:45,704 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-01-23 20:52:45,704 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:52:45,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:52:45,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 61 conjuncts are in the unsatisfiable core [2025-01-23 20:52:45,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:52:45,857 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 [2025-01-23 20:52:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:52:46,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:52:48,493 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 [2025-01-23 20:52:48,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:52:48,666 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 [2025-01-23 20:53:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 1 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:53:09,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023583617] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:53:09,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:53:09,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 53 [2025-01-23 20:53:09,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680688762] [2025-01-23 20:53:09,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:53:09,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2025-01-23 20:53:09,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:53:09,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2025-01-23 20:53:09,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=524, Invalid=2338, Unknown=0, NotChecked=0, Total=2862 [2025-01-23 20:53:09,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:09,469 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:53:09,469 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) [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:09,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:10,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:10,811 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 [2025-01-23 20:53:11,010 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 [2025-01-23 20:53:11,010 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:53:11,010 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:53:11,010 INFO L139 ounterexampleChecker]: Examining path program with hash 1435495989, occurence #3 [2025-01-23 20:53:11,010 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:53:11,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:53:11,010 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:11,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-23 20:53:11,011 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:11,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 20:53:11,011 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:11,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-23 20:53:11,067 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 12 treesize of output 4 [2025-01-23 20:53:12,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash 278250879, now seen corresponding path program 1 times [2025-01-23 20:53:12,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:53:12,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519961972] [2025-01-23 20:53:12,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:53:12,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:12,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 20:53:12,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 20:53:12,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:53:12,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:53:12,132 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:53:12,133 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:53:12,133 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 20:53:12,238 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 14 treesize of output 6 [2025-01-23 20:53:13,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1059428339, now seen corresponding path program 1 times [2025-01-23 20:53:13,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:53:13,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557404141] [2025-01-23 20:53:13,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:53:13,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:13,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-23 20:53:13,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-23 20:53:13,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:53:13,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:53:13,317 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:53:13,317 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:53:13,317 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 41 is hopeless, skipping. [2025-01-23 20:53:13,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-01-23 20:53:13,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:13,317 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 54 is hopeless, skipping. [2025-01-23 20:53:13,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-23 20:53:13,318 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:13,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2025-01-23 20:53:13,318 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:13,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2025-01-23 20:53:13,318 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:13,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 20:53:13,318 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:13,318 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:53:13,318 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:53:13,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:13,318 INFO L85 PathProgramCache]: Analyzing trace with hash 510152078, now seen corresponding path program 3 times [2025-01-23 20:53:13,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:53:13,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401836901] [2025-01-23 20:53:13,318 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:53:13,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:13,326 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 70 statements into 7 equivalence classes. [2025-01-23 20:53:13,353 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 66 of 70 statements. [2025-01-23 20:53:13,353 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-23 20:53:13,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 20:53:13,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:53:13,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401836901] [2025-01-23 20:53:13,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401836901] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:53:13,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699470165] [2025-01-23 20:53:13,912 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:53:13,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:53:13,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:53:13,915 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:53:13,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-23 20:53:13,979 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 70 statements into 7 equivalence classes. [2025-01-23 20:53:14,027 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 66 of 70 statements. [2025-01-23 20:53:14,027 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-23 20:53:14,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:14,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-01-23 20:53:14,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:53:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 15 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 20:53:14,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:53:15,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:53:15,074 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 [2025-01-23 20:53:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 69 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 20:53:15,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699470165] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:53:15,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:53:15,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2025-01-23 20:53:15,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175950710] [2025-01-23 20:53:15,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:53:15,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-23 20:53:15,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:53:15,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-23 20:53:15,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2025-01-23 20:53:15,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:15,452 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:53:15,452 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) [2025-01-23 20:53:15,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:15,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:15,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:15,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:15,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:15,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:15,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:15,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:15,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:15,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:15,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:16,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 20:53:16,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-23 20:53:16,405 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 [2025-01-23 20:53:16,405 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:53:16,405 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:53:16,405 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #1 [2025-01-23 20:53:16,406 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:53:16,406 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:53:16,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1741179842, now seen corresponding path program 4 times [2025-01-23 20:53:16,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:53:16,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118008399] [2025-01-23 20:53:16,406 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:53:16,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:16,419 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 78 statements into 2 equivalence classes. [2025-01-23 20:53:16,456 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 20:53:16,456 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:53:16,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 8 proven. 77 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 20:53:17,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:53:17,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118008399] [2025-01-23 20:53:17,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118008399] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:53:17,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882263881] [2025-01-23 20:53:17,177 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:53:17,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:53:17,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:53:17,180 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:53:17,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-23 20:53:17,237 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 78 statements into 2 equivalence classes. [2025-01-23 20:53:17,269 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 20:53:17,269 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:53:17,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:17,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 69 conjuncts are in the unsatisfiable core [2025-01-23 20:53:17,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:53:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 15 proven. 147 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:53:18,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:53:19,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:53:19,021 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 [2025-01-23 20:53:19,522 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 20:53:19,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882263881] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:53:19,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:53:19,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 25, 14] total 50 [2025-01-23 20:53:19,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581224090] [2025-01-23 20:53:19,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:53:19,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2025-01-23 20:53:19,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:53:19,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2025-01-23 20:53:19,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=439, Invalid=2111, Unknown=0, NotChecked=0, Total=2550 [2025-01-23 20:53:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:19,525 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:53:19,525 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) [2025-01-23 20:53:19,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:19,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:19,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:19,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:19,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:19,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:19,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:19,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:19,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:19,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:19,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-23 20:53:19,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:53:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:53:20,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-23 20:53:21,145 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 [2025-01-23 20:53:21,145 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:53:21,145 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:53:21,145 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #2 [2025-01-23 20:53:21,146 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:53:21,146 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:53:21,146 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:21,146 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-23 20:53:21,146 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:21,146 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 20:53:21,146 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:21,146 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-23 20:53:21,219 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 12 treesize of output 4 [2025-01-23 20:53:22,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:22,264 INFO L85 PathProgramCache]: Analyzing trace with hash 278250915, now seen corresponding path program 1 times [2025-01-23 20:53:22,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:53:22,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494752798] [2025-01-23 20:53:22,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:53:22,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:22,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 20:53:22,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 20:53:22,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:53:22,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:53:22,287 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:53:22,287 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:53:22,287 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 20:53:22,349 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 14 treesize of output 6 [2025-01-23 20:53:23,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:23,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1059428375, now seen corresponding path program 1 times [2025-01-23 20:53:23,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:53:23,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932521295] [2025-01-23 20:53:23,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:53:23,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:23,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-23 20:53:23,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-23 20:53:23,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:53:23,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:53:23,415 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:53:23,416 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:53:23,416 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 41 is hopeless, skipping. [2025-01-23 20:53:23,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-01-23 20:53:23,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2025-01-23 20:53:23,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-01-23 20:53:23,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-01-23 20:53:23,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,416 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 69 is hopeless, skipping. [2025-01-23 20:53:23,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2025-01-23 20:53:23,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2025-01-23 20:53:23,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,417 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2025-01-23 20:53:23,417 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,417 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 85 [2025-01-23 20:53:23,417 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,417 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-01-23 20:53:23,417 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:23,417 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-01-23 20:53:23,417 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:23,417 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:53:23,417 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:53:23,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:23,417 INFO L85 PathProgramCache]: Analyzing trace with hash -667139879, now seen corresponding path program 5 times [2025-01-23 20:53:23,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:53:23,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181639826] [2025-01-23 20:53:23,418 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 20:53:23,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:23,428 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 91 statements into 7 equivalence classes. [2025-01-23 20:53:23,547 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 91 of 91 statements. [2025-01-23 20:53:23,547 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-23 20:53:23,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 4 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:53:27,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:53:27,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181639826] [2025-01-23 20:53:27,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181639826] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:53:27,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404479271] [2025-01-23 20:53:27,467 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 20:53:27,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:53:27,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:53:27,470 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:53:27,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-23 20:53:27,529 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 91 statements into 7 equivalence classes. [2025-01-23 20:53:27,623 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 91 of 91 statements. [2025-01-23 20:53:27,623 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-23 20:53:27,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:27,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 78 conjuncts are in the unsatisfiable core [2025-01-23 20:53:27,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:53:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 15 proven. 192 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:53:29,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:53:30,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:53:30,689 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 [2025-01-23 20:53:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 23 proven. 107 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 20:53:31,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404479271] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:53:31,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:53:31,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27, 16] total 71 [2025-01-23 20:53:31,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993739951] [2025-01-23 20:53:31,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:53:31,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2025-01-23 20:53:31,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:53:31,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2025-01-23 20:53:31,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=520, Invalid=4592, Unknown=0, NotChecked=0, Total=5112 [2025-01-23 20:53:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:31,544 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:53:31,545 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) [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:53:31,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:53:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:53:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:53:34,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-23 20:53:34,252 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 [2025-01-23 20:53:34,252 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:53:34,253 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:53:34,253 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #3 [2025-01-23 20:53:34,253 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:53:34,253 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:53:34,253 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:34,253 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-23 20:53:34,253 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:34,253 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 20:53:34,253 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:34,253 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-01-23 20:53:34,319 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 12 treesize of output 4 [2025-01-23 20:53:35,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash 278250937, now seen corresponding path program 1 times [2025-01-23 20:53:35,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:53:35,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344197731] [2025-01-23 20:53:35,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:53:35,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:35,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 20:53:35,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 20:53:35,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:53:35,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:53:35,376 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:53:35,376 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:53:35,377 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-01-23 20:53:35,437 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 14 treesize of output 6 [2025-01-23 20:53:36,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:36,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1059428397, now seen corresponding path program 1 times [2025-01-23 20:53:36,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:53:36,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916132418] [2025-01-23 20:53:36,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:53:36,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:36,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-23 20:53:36,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-23 20:53:36,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:53:36,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:53:36,537 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:53:36,537 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:53:36,538 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 41 is hopeless, skipping. [2025-01-23 20:53:36,538 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-01-23 20:53:36,538 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,538 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2025-01-23 20:53:36,538 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,538 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-01-23 20:53:36,538 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,538 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-01-23 20:53:36,538 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,538 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 69 is hopeless, skipping. [2025-01-23 20:53:36,538 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2025-01-23 20:53:36,538 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,538 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2025-01-23 20:53:36,538 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,538 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2025-01-23 20:53:36,538 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2025-01-23 20:53:36,539 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2025-01-23 20:53:36,539 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-01-23 20:53:36,539 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:53:36,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2025-01-23 20:53:36,539 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:53:36,539 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:53:36,539 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:53:36,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash -280536738, now seen corresponding path program 6 times [2025-01-23 20:53:36,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:53:36,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480239748] [2025-01-23 20:53:36,540 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 20:53:36,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:36,548 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 94 statements into 7 equivalence classes. [2025-01-23 20:53:36,800 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 94 of 94 statements. [2025-01-23 20:53:36,803 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-01-23 20:53:36,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:53:40,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:53:40,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480239748] [2025-01-23 20:53:40,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480239748] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:53:40,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209228352] [2025-01-23 20:53:40,837 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 20:53:40,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:53:40,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:53:40,839 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) [2025-01-23 20:53:40,840 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 [2025-01-23 20:53:40,910 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 94 statements into 7 equivalence classes. [2025-01-23 20:53:41,844 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 94 of 94 statements. [2025-01-23 20:53:41,844 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-01-23 20:53:41,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:41,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 83 conjuncts are in the unsatisfiable core [2025-01-23 20:53:41,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:53:44,074 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 15 proven. 198 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 20:53:44,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:53:47,506 INFO L349 Elim1Store]: treesize reduction 372, result has 49.8 percent of original size [2025-01-23 20:53:47,507 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 [2025-01-23 20:53:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 20:53:47,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209228352] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:53:47,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:53:47,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 28, 18] total 75 [2025-01-23 20:53:47,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362124360] [2025-01-23 20:53:47,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:53:47,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2025-01-23 20:53:47,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:53:47,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2025-01-23 20:53:47,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1009, Invalid=4691, Unknown=0, NotChecked=0, Total=5700 [2025-01-23 20:53:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:47,993 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:53:47,993 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) [2025-01-23 20:53:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:47,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:53:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:53:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:53:47,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:51,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:53:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-23 20:53:51,791 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 [2025-01-23 20:53:51,989 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 [2025-01-23 20:53:51,989 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:53:51,989 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:53:51,989 INFO L139 ounterexampleChecker]: Examining path program with hash 1600448353, occurence #1 [2025-01-23 20:53:51,989 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:53:51,989 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:53:51,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:51,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1220728755, now seen corresponding path program 7 times [2025-01-23 20:53:51,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:53:51,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786065944] [2025-01-23 20:53:51,990 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 20:53:51,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:52,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-23 20:53:52,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-23 20:53:52,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:53:52,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 40 proven. 113 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2025-01-23 20:53:52,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:53:52,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786065944] [2025-01-23 20:53:52,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786065944] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:53:52,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717890661] [2025-01-23 20:53:52,204 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 20:53:52,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:53:52,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:53:52,207 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) [2025-01-23 20:53:52,207 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 [2025-01-23 20:53:52,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-23 20:53:52,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-23 20:53:52,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:53:52,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:53:52,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-23 20:53:52,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:53:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 38 proven. 97 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-01-23 20:53:52,439 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:53:52,842 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 29 proven. 153 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2025-01-23 20:53:52,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717890661] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:53:52,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:53:52,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 20] total 28 [2025-01-23 20:53:52,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304148214] [2025-01-23 20:53:52,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:53:52,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-01-23 20:53:52,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:53:52,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-01-23 20:53:52,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=500, Unknown=0, NotChecked=0, Total=812 [2025-01-23 20:53:52,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:52,843 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:53:52,844 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) [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-01-23 20:53:52,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:53:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:53:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:53:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:53:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:53:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:53:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:53:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:53:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:53:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:53:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-01-23 20:53:53,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:53:53,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-23 20:53:53,690 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 [2025-01-23 20:53:53,691 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:53:53,691 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:53:53,691 INFO L139 ounterexampleChecker]: Examining path program with hash -1035686994, occurence #1 [2025-01-23 20:53:53,692 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:53:53,692 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:53:53,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:53:53,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1548225829, now seen corresponding path program 8 times [2025-01-23 20:53:53,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:53:53,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237245254] [2025-01-23 20:53:53,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:53:53,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:53:53,702 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-01-23 20:53:53,768 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-01-23 20:53:53,769 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:53:53,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:54:03,606 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 1 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:54:03,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:54:03,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237245254] [2025-01-23 20:54:03,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237245254] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:54:03,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464134296] [2025-01-23 20:54:03,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:54:03,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:54:03,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:54:03,609 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) [2025-01-23 20:54:03,610 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 [2025-01-23 20:54:03,684 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-01-23 20:54:03,728 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-01-23 20:54:03,728 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:54:03,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:54:03,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 99 conjuncts are in the unsatisfiable core [2025-01-23 20:54:03,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:54:06,691 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 15 proven. 262 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:54:06,691 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:54:10,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:54:10,582 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 [2025-01-23 20:54:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 16 proven. 171 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-01-23 20:54:12,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464134296] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:54:12,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:54:12,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 34, 22] total 90 [2025-01-23 20:54:12,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736383514] [2025-01-23 20:54:12,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:54:12,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2025-01-23 20:54:12,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:54:12,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2025-01-23 20:54:12,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=7696, Unknown=0, NotChecked=0, Total=8190 [2025-01-23 20:54:12,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:12,986 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:54:12,987 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) [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:54:12,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:54:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:54:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:54:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:54:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:54:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:54:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-23 20:54:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-23 20:54:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:54:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-01-23 20:54:18,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-01-23 20:54:19,048 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 [2025-01-23 20:54:19,048 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:54:19,048 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:54:19,048 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #4 [2025-01-23 20:54:19,048 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:54:19,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:54:19,048 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:19,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 20:54:19,048 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:19,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-23 20:54:19,048 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:19,048 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-23 20:54:19,104 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 12 treesize of output 4 [2025-01-23 20:54:19,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:19,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1366220691, now seen corresponding path program 1 times [2025-01-23 20:54:19,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:54:19,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788894509] [2025-01-23 20:54:19,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:54:19,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:19,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-23 20:54:19,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-23 20:54:19,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:54:19,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:54:19,228 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:54:19,228 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:54:19,228 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-23 20:54:19,288 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 14 treesize of output 6 [2025-01-23 20:54:20,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:20,343 INFO L85 PathProgramCache]: Analyzing trace with hash -258272761, now seen corresponding path program 1 times [2025-01-23 20:54:20,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:54:20,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349131500] [2025-01-23 20:54:20,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:54:20,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:20,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-23 20:54:20,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-23 20:54:20,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:54:20,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:54:20,362 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:54:20,365 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:54:20,365 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 43 is hopeless, skipping. [2025-01-23 20:54:20,365 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 81 is hopeless, skipping. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2025-01-23 20:54:20,366 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:20,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2025-01-23 20:54:20,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:20,366 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:54:20,366 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:54:20,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash 497115673, now seen corresponding path program 9 times [2025-01-23 20:54:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:54:20,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573595330] [2025-01-23 20:54:20,366 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:54:20,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:20,379 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 109 statements into 8 equivalence classes. [2025-01-23 20:54:20,422 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 109 of 109 statements. [2025-01-23 20:54:20,422 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-01-23 20:54:20,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:54:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 199 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-01-23 20:54:21,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:54:21,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573595330] [2025-01-23 20:54:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573595330] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:54:21,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318809323] [2025-01-23 20:54:21,698 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:54:21,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:54:21,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:54:21,701 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) [2025-01-23 20:54:21,702 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 [2025-01-23 20:54:21,777 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 109 statements into 8 equivalence classes. [2025-01-23 20:54:22,170 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 109 of 109 statements. [2025-01-23 20:54:22,170 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-01-23 20:54:22,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:54:22,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 88 conjuncts are in the unsatisfiable core [2025-01-23 20:54:22,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:54:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 15 proven. 287 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-23 20:54:24,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:54:26,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:54:26,235 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 [2025-01-23 20:54:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 49 proven. 158 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-23 20:54:27,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318809323] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:54:27,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:54:27,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 30, 20] total 64 [2025-01-23 20:54:27,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147989966] [2025-01-23 20:54:27,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:54:27,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2025-01-23 20:54:27,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:54:27,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2025-01-23 20:54:27,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=473, Invalid=3687, Unknown=0, NotChecked=0, Total=4160 [2025-01-23 20:54:27,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:27,366 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:54:27,366 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) [2025-01-23 20:54:27,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:27,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:54:27,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:27,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:54:27,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2025-01-23 20:54:27,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:54:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:54:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:54:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-23 20:54:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-23 20:54:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:54:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-01-23 20:54:29,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-23 20:54:29,372 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 [2025-01-23 20:54:29,565 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 [2025-01-23 20:54:29,565 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:54:29,565 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:54:29,566 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #5 [2025-01-23 20:54:29,566 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:54:29,566 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:54:29,566 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:29,567 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 20:54:29,567 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:29,567 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-23 20:54:29,567 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:29,567 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-23 20:54:29,621 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 12 treesize of output 4 [2025-01-23 20:54:30,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:30,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1366220717, now seen corresponding path program 1 times [2025-01-23 20:54:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:54:30,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635654648] [2025-01-23 20:54:30,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:54:30,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:30,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-23 20:54:30,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-23 20:54:30,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:54:30,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:54:30,687 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:54:30,687 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:54:30,687 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-23 20:54:30,740 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 14 treesize of output 6 [2025-01-23 20:54:31,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:31,786 INFO L85 PathProgramCache]: Analyzing trace with hash -258272735, now seen corresponding path program 1 times [2025-01-23 20:54:31,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:54:31,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601064818] [2025-01-23 20:54:31,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:54:31,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:31,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-23 20:54:31,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-23 20:54:31,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:54:31,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:54:31,808 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:54:31,808 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:54:31,808 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 43 is hopeless, skipping. [2025-01-23 20:54:31,808 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-23 20:54:31,808 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,808 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-23 20:54:31,808 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,809 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-01-23 20:54:31,809 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,809 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2025-01-23 20:54:31,809 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,809 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-23 20:54:31,809 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,809 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2025-01-23 20:54:31,809 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,809 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 81 is hopeless, skipping. [2025-01-23 20:54:31,809 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2025-01-23 20:54:31,809 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2025-01-23 20:54:31,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-01-23 20:54:31,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2025-01-23 20:54:31,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-01-23 20:54:31,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 104 [2025-01-23 20:54:31,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 106 [2025-01-23 20:54:31,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-01-23 20:54:31,810 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:31,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-01-23 20:54:31,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:31,810 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:54:31,811 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:54:31,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:31,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2099269602, now seen corresponding path program 10 times [2025-01-23 20:54:31,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:54:31,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049574997] [2025-01-23 20:54:31,811 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:54:31,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:31,825 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 112 statements into 2 equivalence classes. [2025-01-23 20:54:31,847 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-01-23 20:54:31,848 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:54:31,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:54:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 7 proven. 206 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-01-23 20:54:33,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:54:33,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049574997] [2025-01-23 20:54:33,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049574997] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:54:33,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119240167] [2025-01-23 20:54:33,080 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 20:54:33,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:54:33,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:54:33,082 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) [2025-01-23 20:54:33,083 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 [2025-01-23 20:54:33,161 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 112 statements into 2 equivalence classes. [2025-01-23 20:54:33,203 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 112 of 112 statements. [2025-01-23 20:54:33,203 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-23 20:54:33,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:54:33,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 91 conjuncts are in the unsatisfiable core [2025-01-23 20:54:33,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:54:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 15 proven. 290 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-23 20:54:35,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:54:38,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:54:38,212 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 [2025-01-23 20:54:40,004 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 38 proven. 183 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-23 20:54:40,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119240167] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:54:40,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:54:40,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 30, 22] total 68 [2025-01-23 20:54:40,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132275642] [2025-01-23 20:54:40,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:54:40,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2025-01-23 20:54:40,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:54:40,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2025-01-23 20:54:40,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=4196, Unknown=0, NotChecked=0, Total=4692 [2025-01-23 20:54:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:40,007 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:54:40,007 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) [2025-01-23 20:54:40,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:40,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:54:40,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:40,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:54:40,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:40,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-01-23 20:54:40,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-23 20:54:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-23 20:54:43,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-01-23 20:54:43,290 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 [2025-01-23 20:54:43,290 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:54:43,290 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:54:43,290 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #6 [2025-01-23 20:54:43,290 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:54:43,290 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:54:43,290 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:43,290 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 20:54:43,290 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:43,290 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-23 20:54:43,290 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:43,290 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-23 20:54:43,352 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 12 treesize of output 4 [2025-01-23 20:54:44,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:44,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1366220753, now seen corresponding path program 1 times [2025-01-23 20:54:44,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:54:44,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10928262] [2025-01-23 20:54:44,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:54:44,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:44,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-23 20:54:44,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-23 20:54:44,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:54:44,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:54:44,405 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:54:44,405 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:54:44,405 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-01-23 20:54:44,464 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 14 treesize of output 6 [2025-01-23 20:54:45,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash -258272699, now seen corresponding path program 1 times [2025-01-23 20:54:45,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:54:45,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973240397] [2025-01-23 20:54:45,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:54:45,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:45,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-23 20:54:45,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-23 20:54:45,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:54:45,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:54:45,552 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:54:45,552 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:54:45,552 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 43 is hopeless, skipping. [2025-01-23 20:54:45,552 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-01-23 20:54:45,552 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,552 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-23 20:54:45,552 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 91 is hopeless, skipping. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 98 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 111 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 114 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2025-01-23 20:54:45,553 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:54:45,553 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2025-01-23 20:54:45,553 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:54:45,553 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:54:45,553 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:54:45,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:54:45,554 INFO L85 PathProgramCache]: Analyzing trace with hash 38060281, now seen corresponding path program 11 times [2025-01-23 20:54:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:54:45,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649249564] [2025-01-23 20:54:45,554 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 20:54:45,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:54:45,571 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 125 statements into 10 equivalence classes. [2025-01-23 20:54:45,655 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 125 of 125 statements. [2025-01-23 20:54:45,656 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-01-23 20:54:45,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:54:50,562 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 419 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:54:50,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:54:50,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649249564] [2025-01-23 20:54:50,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649249564] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:54:50,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78715300] [2025-01-23 20:54:50,562 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 20:54:50,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:54:50,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:54:50,565 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) [2025-01-23 20:54:50,566 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 [2025-01-23 20:54:50,657 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 125 statements into 10 equivalence classes. [2025-01-23 20:54:50,879 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 125 of 125 statements. [2025-01-23 20:54:50,879 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-01-23 20:54:50,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:54:50,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 102 conjuncts are in the unsatisfiable core [2025-01-23 20:54:50,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:54:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 15 proven. 394 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-23 20:54:54,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:54:58,864 INFO L349 Elim1Store]: treesize reduction 550, result has 53.7 percent of original size [2025-01-23 20:54:58,864 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 [2025-01-23 20:54:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 85 proven. 229 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-23 20:54:59,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78715300] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:54:59,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 20:54:59,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 34, 24] total 96 [2025-01-23 20:54:59,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477058275] [2025-01-23 20:54:59,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 20:54:59,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2025-01-23 20:54:59,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 20:54:59,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2025-01-23 20:54:59,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=677, Invalid=8635, Unknown=0, NotChecked=0, Total=9312 [2025-01-23 20:54:59,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:59,496 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:54:59,496 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) [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-01-23 20:54:59,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:54:59,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2025-01-23 20:54:59,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-23 20:54:59,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-23 20:54:59,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:55:04,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-23 20:55:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-01-23 20:55:04,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-01-23 20:55:05,033 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 [2025-01-23 20:55:05,033 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:55:05,033 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:55:05,033 INFO L139 ounterexampleChecker]: Examining path program with hash 3979431, occurence #7 [2025-01-23 20:55:05,033 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:55:05,033 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:55:05,033 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:05,033 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 20:55:05,033 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:55:05,033 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-23 20:55:05,033 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:55:05,033 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-23 20:55:05,085 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 12 treesize of output 4 [2025-01-23 20:55:06,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:55:06,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1827055996, now seen corresponding path program 1 times [2025-01-23 20:55:06,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:55:06,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334621996] [2025-01-23 20:55:06,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:55:06,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:55:06,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-23 20:55:06,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 20:55:06,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:55:06,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:55:06,144 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:55:06,144 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:55:06,144 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-01-23 20:55:06,210 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 14 treesize of output 6 [2025-01-23 20:55:07,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:55:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash 166395632, now seen corresponding path program 1 times [2025-01-23 20:55:07,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-23 20:55:07,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424891908] [2025-01-23 20:55:07,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:55:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:55:07,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-23 20:55:07,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-23 20:55:07,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:55:07,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 20:55:07,270 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-23 20:55:07,270 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-23 20:55:07,270 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 44 is hopeless, skipping. [2025-01-23 20:55:07,270 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2025-01-23 20:55:07,270 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 88 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 92 is hopeless, skipping. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 106 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 118 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2025-01-23 20:55:07,271 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,271 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2025-01-23 20:55:07,272 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,272 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2025-01-23 20:55:07,272 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:55:07,272 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 127 [2025-01-23 20:55:07,272 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:55:07,272 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:55:07,272 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:55:07,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:55:07,273 INFO L85 PathProgramCache]: Analyzing trace with hash -703413, now seen corresponding path program 12 times [2025-01-23 20:55:07,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 20:55:07,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183595453] [2025-01-23 20:55:07,273 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 20:55:07,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 20:55:07,285 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 129 statements into 10 equivalence classes. [2025-01-23 20:55:07,352 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 129 of 129 statements. [2025-01-23 20:55:07,353 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-01-23 20:55:07,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:55:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 18 proven. 307 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-01-23 20:55:09,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 20:55:09,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183595453] [2025-01-23 20:55:09,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183595453] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 20:55:09,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305619262] [2025-01-23 20:55:09,409 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 20:55:09,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:55:09,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:55:09,411 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) [2025-01-23 20:55:09,412 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 [2025-01-23 20:55:09,510 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 129 statements into 10 equivalence classes. [2025-01-23 20:55:10,284 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 129 of 129 statements. [2025-01-23 20:55:10,284 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-01-23 20:55:10,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:55:10,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 121 conjuncts are in the unsatisfiable core [2025-01-23 20:55:10,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:55:10,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-23 20:55:13,535 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 15 proven. 438 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-23 20:55:13,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:55:18,548 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 [2025-01-23 20:55:30,949 WARN L286 SmtUtils]: Spent 11.76s 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) [2025-01-23 20:55:30,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:55:30,986 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 [2025-01-23 20:55:41,461 WARN L286 SmtUtils]: Spent 10.39s 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) [2025-01-23 20:59:41,091 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 [2025-01-23 20:59:41,092 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") [2025-01-23 20:59:41,092 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-23 20:59:41,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-01-23 20:59:41,293 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 [2025-01-23 20:59:41,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-01-23 20:59:41,326 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:140) 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 [2025-01-23 20:59:41,333 INFO L158 Benchmark]: Toolchain (without parser) took 429627.83ms. Allocated memory was 117.4MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 91.9MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2025-01-23 20:59:41,333 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 60.6MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 20:59:41,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.55ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 78.2MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-23 20:59:41,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.48ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 76.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 20:59:41,334 INFO L158 Benchmark]: Boogie Preprocessor took 13.60ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 75.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 20:59:41,334 INFO L158 Benchmark]: RCFGBuilder took 460.71ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 40.9MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-23 20:59:41,335 INFO L158 Benchmark]: TraceAbstraction took 428915.27ms. Allocated memory was 117.4MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 40.2MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2025-01-23 20:59:41,337 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 60.6MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.55ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 78.2MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.48ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 76.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.60ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 75.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 460.71ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 40.9MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 428915.27ms. Allocated memory was 117.4MB in the beginning and 2.6GB in the end (delta: 2.5GB). Free memory was 40.2MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.6GB. 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 SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 20:59:43,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 20:59:43,232 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-01-23 20:59:43,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 20:59:43,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 20:59:43,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 20:59:43,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 20:59:43,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 20:59:43,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 20:59:43,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 20:59:43,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 20:59:43,264 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 20:59:43,264 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 20:59:43,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 20:59:43,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 20:59:43,264 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 20:59:43,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 20:59:43,266 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 20:59:43,266 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 20:59:43,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 20:59:43,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 20:59:43,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 20:59:43,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 20:59:43,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 20:59:43,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 20:59:43,267 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 20:59:43,267 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 -> SUFFICIENT [2025-01-23 20:59:43,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 20:59:43,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 20:59:43,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 20:59:43,474 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 20:59:43,474 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 20:59:43,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2025-01-23 20:59:44,601 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/ee4885a53/a697783a5c6047e3a6cf6023b4b53175/FLAG0b0275579 [2025-01-23 20:59:44,760 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 20:59:44,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2025-01-23 20:59:44,765 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/ee4885a53/a697783a5c6047e3a6cf6023b4b53175/FLAG0b0275579 [2025-01-23 20:59:45,164 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/ee4885a53/a697783a5c6047e3a6cf6023b4b53175 [2025-01-23 20:59:45,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 20:59:45,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 20:59:45,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 20:59:45,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 20:59:45,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 20:59:45,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e279b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45, skipping insertion in model container [2025-01-23 20:59:45,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 20:59:45,311 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] [2025-01-23 20:59:45,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 20:59:45,329 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 20:59:45,369 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] [2025-01-23 20:59:45,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 20:59:45,384 INFO L204 MainTranslator]: Completed translation [2025-01-23 20:59:45,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45 WrapperNode [2025-01-23 20:59:45,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 20:59:45,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 20:59:45,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 20:59:45,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 20:59:45,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,409 INFO L138 Inliner]: procedures = 25, calls = 27, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 131 [2025-01-23 20:59:45,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 20:59:45,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 20:59:45,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 20:59:45,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 20:59:45,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,428 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 20:59:45,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 20:59:45,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 20:59:45,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 20:59:45,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (1/1) ... [2025-01-23 20:59:45,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 20:59:45,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:45,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 20:59:45,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 20:59:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 20:59:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 20:59:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 20:59:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 20:59:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 20:59:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-01-23 20:59:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 20:59:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 20:59:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 20:59:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-01-23 20:59:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 20:59:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 20:59:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-01-23 20:59:45,488 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 20:59:45,547 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 20:59:45,548 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 20:59:45,714 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 20:59:45,714 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 20:59:45,900 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 20:59:45,900 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-23 20:59:45,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 08:59:45 BoogieIcfgContainer [2025-01-23 20:59:45,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 20:59:45,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 20:59:45,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 20:59:45,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 20:59:45,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 08:59:45" (1/3) ... [2025-01-23 20:59:45,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3adda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 08:59:45, skipping insertion in model container [2025-01-23 20:59:45,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 08:59:45" (2/3) ... [2025-01-23 20:59:45,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3adda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 08:59:45, skipping insertion in model container [2025-01-23 20:59:45,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 08:59:45" (3/3) ... [2025-01-23 20:59:45,907 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2025-01-23 20:59:45,916 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 20:59:45,917 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. [2025-01-23 20:59:45,917 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 20:59:45,952 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 20:59:45,980 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 20:59:45,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 20:59:45,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:45,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 20:59:45,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 20:59:46,034 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 20:59:46,046 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 20:59:46,053 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;@bc50d04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 20:59:46,053 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-23 20:59:46,170 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:59:46,171 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:59:46,171 INFO L139 ounterexampleChecker]: Examining path program with hash -1966064255, occurence #1 [2025-01-23 20:59:46,171 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:59:46,171 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:59:46,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:59:46,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1005052114, now seen corresponding path program 1 times [2025-01-23 20:59:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:59:46,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178531128] [2025-01-23 20:59:46,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:59:46,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:59:46,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:46,198 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:59:46,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 20:59:46,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-23 20:59:46,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-23 20:59:46,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:59:46,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:59:46,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-23 20:59:46,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:59:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:46,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 20:59:46,268 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:59:46,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178531128] [2025-01-23 20:59:46,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178531128] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:59:46,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:59:46,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 20:59:46,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149045274] [2025-01-23 20:59:46,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:59:46,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 20:59:46,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:59:46,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-23 20:59:46,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-23 20:59:46,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:46,286 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:59:46,286 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) [2025-01-23 20:59:46,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:46,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:46,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 20:59:46,589 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 [2025-01-23 20:59:46,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:59:46,590 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:59:46,594 INFO L139 ounterexampleChecker]: Examining path program with hash 1419419764, occurence #1 [2025-01-23 20:59:46,594 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:59:46,594 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:59:46,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:59:46,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1754189697, now seen corresponding path program 1 times [2025-01-23 20:59:46,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:59:46,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639573067] [2025-01-23 20:59:46,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:59:46,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:59:46,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:46,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:59:46,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 20:59:46,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-23 20:59:46,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-23 20:59:46,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:59:46,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:59:46,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-23 20:59:46,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:59:46,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:46,712 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 20:59:46,712 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:59:46,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639573067] [2025-01-23 20:59:46,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639573067] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:59:46,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:59:46,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 20:59:46,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798821221] [2025-01-23 20:59:46,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:59:46,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:59:46,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:59:46,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:59:46,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 20:59:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:46,714 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:59:46,714 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) [2025-01-23 20:59:46,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:46,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:46,769 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 [2025-01-23 20:59:46,967 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 [2025-01-23 20:59:46,967 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:59:46,967 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:59:46,967 INFO L139 ounterexampleChecker]: Examining path program with hash 1419419764, occurence #2 [2025-01-23 20:59:46,967 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 20:59:46,967 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-23 20:59:46,968 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:59:46,968 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-23 20:59:46,979 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:59:46,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-23 20:59:46,979 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:59:46,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-23 20:59:46,979 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:59:46,980 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 20:59:46,980 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:59:46,980 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 20:59:46,980 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 20:59:46,980 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-23 20:59:46,980 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 20:59:46,980 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 20:59:46,980 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:59:46,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:59:46,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1944650792, now seen corresponding path program 1 times [2025-01-23 20:59:46,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:59:46,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293322643] [2025-01-23 20:59:46,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:59:46,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:59:46,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:46,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:59:46,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 20:59:47,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-23 20:59:47,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 20:59:47,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:59:47,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:59:47,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-23 20:59:47,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:59:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:47,152 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:59:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:47,274 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:59:47,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293322643] [2025-01-23 20:59:47,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293322643] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:59:47,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:59:47,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-01-23 20:59:47,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118398821] [2025-01-23 20:59:47,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 20:59:47,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-23 20:59:47,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:59:47,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-23 20:59:47,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-01-23 20:59:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:47,276 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:59:47,276 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) [2025-01-23 20:59:47,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:47,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:47,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:47,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:47,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:47,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:59:47,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-23 20:59:47,740 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 [2025-01-23 20:59:47,741 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:59:47,741 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:59:47,741 INFO L139 ounterexampleChecker]: Examining path program with hash 1830770521, occurence #1 [2025-01-23 20:59:47,741 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:59:47,741 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:59:47,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:59:47,742 INFO L85 PathProgramCache]: Analyzing trace with hash 452659213, now seen corresponding path program 1 times [2025-01-23 20:59:47,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:59:47,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634103436] [2025-01-23 20:59:47,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:59:47,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:59:47,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:47,745 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:59:47,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 20:59:47,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-23 20:59:47,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 20:59:47,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:59:47,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:59:47,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-23 20:59:47,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:59:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:48,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:59:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:48,710 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:59:48,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634103436] [2025-01-23 20:59:48,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634103436] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:59:48,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:59:48,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-01-23 20:59:48,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672327201] [2025-01-23 20:59:48,711 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 20:59:48,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-23 20:59:48,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:59:48,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-23 20:59:48,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2025-01-23 20:59:48,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:48,713 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:59:48,713 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) [2025-01-23 20:59:48,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:48,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:48,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:59:48,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:49,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:49,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:49,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:59:49,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:59:49,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-23 20:59:49,297 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 [2025-01-23 20:59:49,297 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:59:49,297 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:59:49,297 INFO L139 ounterexampleChecker]: Examining path program with hash 1247903424, occurence #1 [2025-01-23 20:59:49,297 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:59:49,297 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:59:49,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:59:49,298 INFO L85 PathProgramCache]: Analyzing trace with hash -199950353, now seen corresponding path program 2 times [2025-01-23 20:59:49,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:59:49,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89579421] [2025-01-23 20:59:49,298 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 20:59:49,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:59:49,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:49,304 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:59:49,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-23 20:59:49,340 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-01-23 20:59:49,365 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 20:59:49,366 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 20:59:49,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:59:49,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-23 20:59:49,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:59:49,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-23 20:59:49,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:49,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 20:59:50,375 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 [2025-01-23 20:59:50,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 20:59:50,391 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 [2025-01-23 20:59:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:51,568 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:59:51,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89579421] [2025-01-23 20:59:51,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89579421] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 20:59:51,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 20:59:51,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2025-01-23 20:59:51,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73562937] [2025-01-23 20:59:51,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 20:59:51,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-23 20:59:51,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:59:51,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-23 20:59:51,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2025-01-23 20:59:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:51,570 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:59:51,570 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) [2025-01-23 20:59:51,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:51,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:51,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:59:51,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:59:51,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:59:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:59:54,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 20:59:54,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-23 20:59:54,993 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 [2025-01-23 20:59:54,993 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:59:54,993 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:59:54,993 INFO L139 ounterexampleChecker]: Examining path program with hash 30406465, occurence #1 [2025-01-23 20:59:54,993 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:59:54,993 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:59:54,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:59:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash 138573158, now seen corresponding path program 3 times [2025-01-23 20:59:54,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:59:54,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173250005] [2025-01-23 20:59:54,994 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 20:59:54,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:59:54,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:54,996 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:59:54,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-23 20:59:55,050 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 50 statements into 5 equivalence classes. [2025-01-23 20:59:55,079 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 46 of 50 statements. [2025-01-23 20:59:55,080 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-23 20:59:55,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:59:55,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-23 20:59:55,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:59:55,103 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-23 20:59:55,103 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 20:59:55,103 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 20:59:55,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173250005] [2025-01-23 20:59:55,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173250005] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 20:59:55,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 20:59:55,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 20:59:55,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579394566] [2025-01-23 20:59:55,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 20:59:55,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 20:59:55,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 20:59:55,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 20:59:55,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 20:59:55,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:55,105 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 20:59:55,105 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) [2025-01-23 20:59:55,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:55,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:55,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:59:55,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:59:55,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-23 20:59:55,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:55,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 20:59:55,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:55,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 20:59:55,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 20:59:55,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 20:59:55,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 20:59:55,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-23 20:59:55,453 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 [2025-01-23 20:59:55,453 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 20:59:55,453 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 20:59:55,454 INFO L139 ounterexampleChecker]: Examining path program with hash 1576430254, occurence #1 [2025-01-23 20:59:55,455 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 20:59:55,455 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 20:59:55,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 20:59:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1794598328, now seen corresponding path program 1 times [2025-01-23 20:59:55,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 20:59:55,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770518928] [2025-01-23 20:59:55,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 20:59:55,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 20:59:55,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 20:59:55,458 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 20:59:55,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-23 20:59:55,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-23 20:59:55,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-23 20:59:55,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 20:59:55,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 20:59:55,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-01-23 20:59:55,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 20:59:55,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-23 20:59:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 7 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 20:59:57,525 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 21:00:02,631 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 [2025-01-23 21:00:03,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 21:00:03,035 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 [2025-01-23 21:02:27,123 WARN L286 SmtUtils]: Spent 21.42s 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) [2025-01-23 21:02:41,748 WARN L286 SmtUtils]: Spent 5.90s 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) [2025-01-23 21:03:09,989 WARN L286 SmtUtils]: Spent 5.78s 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) [2025-01-23 21:03:26,009 WARN L286 SmtUtils]: Spent 6.13s 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) [2025-01-23 21:03:42,511 WARN L286 SmtUtils]: Spent 5.57s 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) [2025-01-23 21:03:59,862 WARN L286 SmtUtils]: Spent 7.12s 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) [2025-01-23 21:04:16,327 WARN L286 SmtUtils]: Spent 5.49s 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) [2025-01-23 21:04:16,330 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 76 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 21:04:16,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 21:04:16,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770518928] [2025-01-23 21:04:16,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770518928] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 21:04:16,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 21:04:16,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 42 [2025-01-23 21:04:16,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603379097] [2025-01-23 21:04:16,330 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 21:04:16,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-01-23 21:04:16,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 21:04:16,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-01-23 21:04:16,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=1374, Unknown=1, NotChecked=0, Total=1806 [2025-01-23 21:04:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:04:16,332 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 21:04:16,333 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) [2025-01-23 21:04:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 21:04:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 21:04:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 21:04:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 21:04:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-23 21:04:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 21:04:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15