./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-send-receive.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 4eda2bf92bccdcc8638b67653fb7fdefc015ff9c815b317ad1009deb61d04585 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-24 04:14:50,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-24 04:14:50,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-24 04:14:50,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-24 04:14:50,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-24 04:14:50,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-24 04:14:50,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-24 04:14:50,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-24 04:14:50,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-24 04:14:50,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-24 04:14:50,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-24 04:14:50,200 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-24 04:14:50,200 INFO L153 SettingsManager]: * Use SBE=true [2025-01-24 04:14:50,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-24 04:14:50,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-24 04:14:50,201 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-24 04:14:50,201 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-24 04:14:50,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-24 04:14:50,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-24 04:14:50,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-24 04:14:50,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-24 04:14:50,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-24 04:14:50,202 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-24 04:14:50,202 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-24 04:14:50,202 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-24 04:14:50,202 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-24 04:14:50,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 04:14:50,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-24 04:14:50,203 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-24 04:14:50,204 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 -> 4eda2bf92bccdcc8638b67653fb7fdefc015ff9c815b317ad1009deb61d04585 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2025-01-24 04:14:50,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-24 04:14:50,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-24 04:14:50,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-24 04:14:50,502 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-24 04:14:50,502 INFO L274 PluginConnector]: CDTParser initialized [2025-01-24 04:14:50,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2025-01-24 04:14:51,778 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/ab85f1b09/0efabe9480184c508833ad0d527c8cec/FLAG483d9137f [2025-01-24 04:14:52,025 INFO L384 CDTParser]: Found 1 translation units. [2025-01-24 04:14:52,026 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2025-01-24 04:14:52,034 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/ab85f1b09/0efabe9480184c508833ad0d527c8cec/FLAG483d9137f [2025-01-24 04:14:52,050 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/ab85f1b09/0efabe9480184c508833ad0d527c8cec [2025-01-24 04:14:52,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-24 04:14:52,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-24 04:14:52,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-24 04:14:52,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-24 04:14:52,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-24 04:14:52,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e9eb01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52, skipping insertion in model container [2025-01-24 04:14:52,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-24 04:14:52,227 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.wvr.c[3146,3159] [2025-01-24 04:14:52,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 04:14:52,249 INFO L200 MainTranslator]: Completed pre-run [2025-01-24 04:14:52,318 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.wvr.c[3146,3159] [2025-01-24 04:14:52,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 04:14:52,341 INFO L204 MainTranslator]: Completed translation [2025-01-24 04:14:52,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52 WrapperNode [2025-01-24 04:14:52,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-24 04:14:52,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-24 04:14:52,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-24 04:14:52,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-24 04:14:52,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,378 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 139 [2025-01-24 04:14:52,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-24 04:14:52,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-24 04:14:52,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-24 04:14:52,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-24 04:14:52,387 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,401 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,402 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-24 04:14:52,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-24 04:14:52,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-24 04:14:52,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-24 04:14:52,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (1/1) ... [2025-01-24 04:14:52,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 04:14:52,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:52,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-24 04:14:52,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-24 04:14:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-24 04:14:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-24 04:14:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-24 04:14:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-24 04:14:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-24 04:14:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-24 04:14:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-24 04:14:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-24 04:14:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-24 04:14:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-24 04:14:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-24 04:14:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-24 04:14:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-24 04:14:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-24 04:14:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-24 04:14:52,480 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-24 04:14:52,597 INFO L234 CfgBuilder]: Building ICFG [2025-01-24 04:14:52,599 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-24 04:14:52,865 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-24 04:14:52,866 INFO L283 CfgBuilder]: Performing block encoding [2025-01-24 04:14:53,073 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-24 04:14:53,074 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-24 04:14:53,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:14:53 BoogieIcfgContainer [2025-01-24 04:14:53,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-24 04:14:53,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-24 04:14:53,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-24 04:14:53,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-24 04:14:53,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 04:14:52" (1/3) ... [2025-01-24 04:14:53,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115137ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:14:53, skipping insertion in model container [2025-01-24 04:14:53,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:14:52" (2/3) ... [2025-01-24 04:14:53,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115137ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:14:53, skipping insertion in model container [2025-01-24 04:14:53,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:14:53" (3/3) ... [2025-01-24 04:14:53,086 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2025-01-24 04:14:53,098 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-24 04:14:53,101 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-send-receive.wvr.c that has 4 procedures, 33 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-24 04:14:53,101 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-24 04:14:53,177 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-24 04:14:53,214 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 04:14:53,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-24 04:14:53,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:53,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-24 04:14:53,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-24 04:14:53,300 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-24 04:14:53,315 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-24 04:14:53,321 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;@77484843, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 04:14:53,321 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-24 04:14:53,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:14:53,819 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:53,819 INFO L139 ounterexampleChecker]: Examining path program with hash 1066573077, occurence #1 [2025-01-24 04:14:53,819 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:53,819 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:53,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash 124580333, now seen corresponding path program 1 times [2025-01-24 04:14:53,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:53,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061936610] [2025-01-24 04:14:53,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:53,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-24 04:14:53,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-24 04:14:53,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:53,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:54,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:54,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061936610] [2025-01-24 04:14:54,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061936610] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:54,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:14:54,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-24 04:14:54,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166991534] [2025-01-24 04:14:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:54,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-24 04:14:54,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:54,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-24 04:14:54,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-24 04:14:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:54,199 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:54,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:14:54,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:54,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:54,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-24 04:14:54,366 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:14:54,366 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:54,366 INFO L139 ounterexampleChecker]: Examining path program with hash 1632492912, occurence #1 [2025-01-24 04:14:54,366 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:54,366 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:54,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1954646658, now seen corresponding path program 1 times [2025-01-24 04:14:54,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:54,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615382556] [2025-01-24 04:14:54,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:54,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:54,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-24 04:14:54,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-24 04:14:54,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:54,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:54,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:54,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:54,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615382556] [2025-01-24 04:14:54,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615382556] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:54,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:14:54,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-24 04:14:54,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444302231] [2025-01-24 04:14:54,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:54,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:14:54,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:54,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:14:54,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:14:54,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:54,647 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:54,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:14:54,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:54,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-24 04:14:54,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:14:54,715 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:54,716 INFO L139 ounterexampleChecker]: Examining path program with hash 1632492912, occurence #2 [2025-01-24 04:14:54,716 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:14:54,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:14:54,716 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:54,716 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-24 04:14:54,727 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:54,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 04:14:54,727 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:54,727 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-24 04:14:54,728 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:54,728 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-24 04:14:54,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:54,767 INFO L85 PathProgramCache]: Analyzing trace with hash -642242251, now seen corresponding path program 1 times [2025-01-24 04:14:54,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:14:54,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226927949] [2025-01-24 04:14:54,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:54,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:54,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-24 04:14:54,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-24 04:14:54,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:54,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:14:54,810 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:14:54,813 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:14:54,814 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-01-24 04:14:54,814 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:54,814 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:14:54,814 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:54,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:54,814 INFO L85 PathProgramCache]: Analyzing trace with hash -621214997, now seen corresponding path program 1 times [2025-01-24 04:14:54,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:54,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233838076] [2025-01-24 04:14:54,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:54,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:54,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-24 04:14:54,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-24 04:14:54,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:14:54,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:14:54,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:54,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233838076] [2025-01-24 04:14:54,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233838076] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:54,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:14:54,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-24 04:14:54,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849785556] [2025-01-24 04:14:54,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:54,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:14:54,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:54,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:14:54,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:14:54,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:54,985 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:54,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:14:54,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:54,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:54,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:55,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:55,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,SelfDestructingSolverStorable2 [2025-01-24 04:14:55,111 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:14:55,111 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:55,112 INFO L139 ounterexampleChecker]: Examining path program with hash -2090841688, occurence #1 [2025-01-24 04:14:55,112 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:55,112 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:55,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:55,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1724373739, now seen corresponding path program 2 times [2025-01-24 04:14:55,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:55,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171407915] [2025-01-24 04:14:55,114 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:14:55,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:55,123 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-24 04:14:55,142 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-24 04:14:55,142 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:14:55,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:14:55,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171407915] [2025-01-24 04:14:55,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171407915] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:14:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363501634] [2025-01-24 04:14:55,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:14:55,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:55,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:55,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:14:55,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-24 04:14:55,543 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-24 04:14:55,575 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-24 04:14:55,575 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:14:55,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:55,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-24 04:14:55,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:14:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:14:55,634 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:14:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:14:55,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363501634] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:14:55,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:14:55,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 10 [2025-01-24 04:14:55,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936253030] [2025-01-24 04:14:55,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:14:55,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-24 04:14:55,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:55,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-24 04:14:55,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-01-24 04:14:55,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:55,793 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:55,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:14:55,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:55,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:55,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:55,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:56,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:56,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:56,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:14:56,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-24 04:14:56,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:56,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:14:56,557 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:56,557 INFO L139 ounterexampleChecker]: Examining path program with hash -2011961971, occurence #1 [2025-01-24 04:14:56,558 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:56,558 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:56,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:56,558 INFO L85 PathProgramCache]: Analyzing trace with hash 890541727, now seen corresponding path program 3 times [2025-01-24 04:14:56,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:56,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028079247] [2025-01-24 04:14:56,558 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:14:56,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:56,569 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 46 statements into 3 equivalence classes. [2025-01-24 04:14:56,586 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 32 of 46 statements. [2025-01-24 04:14:56,586 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-24 04:14:56,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-24 04:14:56,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:56,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028079247] [2025-01-24 04:14:56,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028079247] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:14:56,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:14:56,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-24 04:14:56,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878494542] [2025-01-24 04:14:56,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:14:56,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-24 04:14:56,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:56,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-24 04:14:56,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-24 04:14:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:56,830 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:56,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:14:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:14:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:14:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:14:57,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-24 04:14:57,045 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:14:57,045 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:57,045 INFO L139 ounterexampleChecker]: Examining path program with hash -16160479, occurence #1 [2025-01-24 04:14:57,045 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:14:57,045 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:14:57,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:57,046 INFO L85 PathProgramCache]: Analyzing trace with hash 353613099, now seen corresponding path program 4 times [2025-01-24 04:14:57,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:14:57,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000631370] [2025-01-24 04:14:57,046 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:14:57,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:14:57,054 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 30 statements into 2 equivalence classes. [2025-01-24 04:14:57,081 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-24 04:14:57,081 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:14:57,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:57,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:57,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:14:57,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000631370] [2025-01-24 04:14:57,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000631370] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:14:57,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373003000] [2025-01-24 04:14:57,647 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:14:57,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:57,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:14:57,649 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:14:57,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-24 04:14:57,699 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 30 statements into 2 equivalence classes. [2025-01-24 04:14:57,725 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-24 04:14:57,725 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:14:57,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:14:57,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-01-24 04:14:57,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:14:57,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:14:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:58,142 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:14:58,898 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 61 treesize of output 55 [2025-01-24 04:14:58,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:14:58,911 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 78 treesize of output 68 [2025-01-24 04:14:59,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:14:59,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373003000] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:14:59,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:14:59,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 29 [2025-01-24 04:14:59,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752788557] [2025-01-24 04:14:59,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:14:59,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-01-24 04:14:59,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:14:59,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-01-24 04:14:59,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2025-01-24 04:14:59,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:59,048 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:14:59,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 29 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:14:59,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:59,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:59,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:59,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:14:59,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:14:59,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:14:59,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:14:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:14:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:14:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:14:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:14:59,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-24 04:14:59,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:14:59,975 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:14:59,975 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:14:59,975 INFO L139 ounterexampleChecker]: Examining path program with hash -16160479, occurence #2 [2025-01-24 04:14:59,975 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:14:59,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:14:59,975 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:14:59,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-24 04:14:59,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:59,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-24 04:14:59,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:59,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-24 04:14:59,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:14:59,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-24 04:14:59,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:14:59,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1640006572, now seen corresponding path program 1 times [2025-01-24 04:14:59,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:14:59,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928414926] [2025-01-24 04:14:59,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:14:59,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:00,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-24 04:15:00,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-24 04:15:00,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:00,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:00,023 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:00,023 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:00,023 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-24 04:15:00,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:00,074 INFO L85 PathProgramCache]: Analyzing trace with hash -699406220, now seen corresponding path program 1 times [2025-01-24 04:15:00,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:00,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934401182] [2025-01-24 04:15:00,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:00,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:00,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-24 04:15:00,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-24 04:15:00,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:00,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:00,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:00,636 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 04:15:00,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934401182] [2025-01-24 04:15:00,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934401182] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:00,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1240519693] [2025-01-24 04:15:00,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:00,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-24 04:15:00,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-24 04:15:00,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:00,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:00,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-01-24 04:15:00,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:00,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1240519693] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:00,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:15:00,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2025-01-24 04:15:00,938 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:15:00,938 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-24 04:15:00,938 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:00,938 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:15:00,938 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:00,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:00,939 INFO L85 PathProgramCache]: Analyzing trace with hash -256887852, now seen corresponding path program 5 times [2025-01-24 04:15:00,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:00,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217836706] [2025-01-24 04:15:00,939 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:15:00,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:00,946 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-24 04:15:00,961 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-01-24 04:15:00,961 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:15:00,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:01,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:01,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217836706] [2025-01-24 04:15:01,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217836706] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:01,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127194248] [2025-01-24 04:15:01,788 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:15:01,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:01,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:01,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:01,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-24 04:15:01,846 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-24 04:15:01,871 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-01-24 04:15:01,871 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:15:01,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:01,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-24 04:15:01,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:15:02,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:02,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:15:02,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 24 [2025-01-24 04:15:02,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:15:02,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127194248] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:02,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:15:02,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 8] total 23 [2025-01-24 04:15:02,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94834985] [2025-01-24 04:15:02,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:15:02,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-24 04:15:02,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:02,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-24 04:15:02,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2025-01-24 04:15:02,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:02,307 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:02,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:15:02,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:02,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:02,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:02,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:02,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:02,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:02,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:03,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:03,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:03,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:03,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:03,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-24 04:15:03,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable10,SelfDestructingSolverStorable9,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:03,227 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:15:03,228 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:03,228 INFO L139 ounterexampleChecker]: Examining path program with hash -144041427, occurence #1 [2025-01-24 04:15:03,228 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:15:03,228 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:03,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:03,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1270454113, now seen corresponding path program 6 times [2025-01-24 04:15:03,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:03,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163452856] [2025-01-24 04:15:03,228 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 04:15:03,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:03,236 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 39 statements into 2 equivalence classes. [2025-01-24 04:15:03,245 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-01-24 04:15:03,246 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-01-24 04:15:03,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:15:03,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:03,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163452856] [2025-01-24 04:15:03,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163452856] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:15:03,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:15:03,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 04:15:03,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955016150] [2025-01-24 04:15:03,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:15:03,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:15:03,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:03,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:15:03,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:15:03,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:03,357 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:03,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:15:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:03,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:03,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:03,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-24 04:15:03,447 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:15:03,447 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:03,447 INFO L139 ounterexampleChecker]: Examining path program with hash -2086958532, occurence #1 [2025-01-24 04:15:03,447 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:15:03,448 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:03,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:03,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2069415745, now seen corresponding path program 1 times [2025-01-24 04:15:03,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:03,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948486180] [2025-01-24 04:15:03,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:03,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:03,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-24 04:15:03,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-24 04:15:03,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:03,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:04,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:04,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948486180] [2025-01-24 04:15:04,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948486180] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:04,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94799727] [2025-01-24 04:15:04,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:04,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:04,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:04,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:04,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-24 04:15:04,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-24 04:15:04,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-24 04:15:04,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:04,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:04,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-01-24 04:15:04,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:05,117 INFO L349 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2025-01-24 04:15:05,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 17 [2025-01-24 04:15:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:05,172 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:05,536 INFO L349 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2025-01-24 04:15:05,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 60 [2025-01-24 04:15:06,458 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:06,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94799727] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:06,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:06,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 15] total 41 [2025-01-24 04:15:06,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803053956] [2025-01-24 04:15:06,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:06,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-01-24 04:15:06,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:06,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-01-24 04:15:06,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2025-01-24 04:15:06,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:06,464 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:06,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.642857142857143) internal successors, (111), 41 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:15:06,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:06,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:06,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:06,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:06,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:06,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:06,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:06,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:06,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:07,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:07,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-24 04:15:07,858 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,SelfDestructingSolverStorable12 [2025-01-24 04:15:07,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:15:07,859 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:07,859 INFO L139 ounterexampleChecker]: Examining path program with hash -2086958532, occurence #2 [2025-01-24 04:15:07,859 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:15:07,859 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:15:07,859 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:07,859 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-01-24 04:15:07,859 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:07,859 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-24 04:15:07,859 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:07,859 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-24 04:15:07,859 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:07,859 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-24 04:15:07,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:07,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1491113175, now seen corresponding path program 1 times [2025-01-24 04:15:07,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:07,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163064324] [2025-01-24 04:15:07,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:07,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:07,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-24 04:15:07,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-24 04:15:07,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:07,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:07,907 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:07,907 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:07,907 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-24 04:15:07,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:07,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1848214716, now seen corresponding path program 1 times [2025-01-24 04:15:07,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:07,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89270388] [2025-01-24 04:15:07,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:07,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:07,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-24 04:15:07,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-24 04:15:07,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:07,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:07,951 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:07,951 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:07,951 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-24 04:15:07,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:07,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1460085367, now seen corresponding path program 1 times [2025-01-24 04:15:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:07,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012493338] [2025-01-24 04:15:07,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:07,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:08,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-24 04:15:08,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:15:08,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:08,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:09,394 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 04:15:09,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012493338] [2025-01-24 04:15:09,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012493338] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:09,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1622907641] [2025-01-24 04:15:09,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:09,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:09,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-24 04:15:09,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:15:09,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:09,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:09,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-01-24 04:15:09,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:09,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-24 04:15:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:09,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1622907641] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:09,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:15:09,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2025-01-24 04:15:09,921 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:15:09,921 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2025-01-24 04:15:09,921 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:09,921 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:15:09,921 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:09,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:09,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1655973942, now seen corresponding path program 2 times [2025-01-24 04:15:09,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:09,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792341755] [2025-01-24 04:15:09,921 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:15:09,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:09,927 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 2 equivalence classes. [2025-01-24 04:15:09,942 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-01-24 04:15:09,942 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:15:09,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:10,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:10,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:10,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792341755] [2025-01-24 04:15:10,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792341755] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:10,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104068677] [2025-01-24 04:15:10,788 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:15:10,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:10,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:10,790 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:10,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-24 04:15:10,845 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 2 equivalence classes. [2025-01-24 04:15:10,872 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-01-24 04:15:10,872 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:15:10,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:10,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-01-24 04:15:10,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-24 04:15:11,247 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:11,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:15:11,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2025-01-24 04:15:11,733 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-24 04:15:11,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104068677] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:11,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:11,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 34 [2025-01-24 04:15:11,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752263795] [2025-01-24 04:15:11,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:11,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-01-24 04:15:11,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:11,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-01-24 04:15:11,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1023, Unknown=0, NotChecked=0, Total=1190 [2025-01-24 04:15:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:11,735 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:11,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.085714285714286) internal successors, (108), 34 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:11,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:12,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-24 04:15:12,984 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,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2025-01-24 04:15:12,984 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:15:12,984 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:12,984 INFO L139 ounterexampleChecker]: Examining path program with hash -2086958532, occurence #3 [2025-01-24 04:15:12,984 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:15:12,984 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:15:12,985 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:12,985 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-24 04:15:12,985 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:12,985 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 04:15:12,985 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:12,985 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-24 04:15:12,985 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:12,985 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-24 04:15:13,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1170383601, now seen corresponding path program 1 times [2025-01-24 04:15:13,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:13,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621949063] [2025-01-24 04:15:13,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:13,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:13,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-24 04:15:13,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-24 04:15:13,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:13,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:13,016 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:13,017 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:13,017 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-24 04:15:13,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:13,040 INFO L85 PathProgramCache]: Analyzing trace with hash -391868322, now seen corresponding path program 1 times [2025-01-24 04:15:13,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:13,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483236640] [2025-01-24 04:15:13,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:13,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:13,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-24 04:15:13,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:15:13,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:13,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:13,058 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:13,058 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:13,058 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 36 is hopeless, skipping. [2025-01-24 04:15:13,059 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2025-01-24 04:15:13,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1318608134, now seen corresponding path program 1 times [2025-01-24 04:15:13,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:13,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117532449] [2025-01-24 04:15:13,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:13,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:13,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-24 04:15:13,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-24 04:15:13,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:13,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:14,576 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 04:15:14,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117532449] [2025-01-24 04:15:14,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117532449] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:14,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1432548807] [2025-01-24 04:15:14,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:14,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:14,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-24 04:15:14,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-24 04:15:14,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:14,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:14,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-01-24 04:15:14,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:15,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1432548807] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:15,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:15:15,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2025-01-24 04:15:15,211 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:15:15,212 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2025-01-24 04:15:15,212 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:15,212 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:15:15,212 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:15,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:15,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1115922070, now seen corresponding path program 3 times [2025-01-24 04:15:15,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:15,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719901908] [2025-01-24 04:15:15,212 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:15:15,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:15,219 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 49 statements into 3 equivalence classes. [2025-01-24 04:15:15,243 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 49 of 49 statements. [2025-01-24 04:15:15,243 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-24 04:15:15,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:16,211 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:16,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:16,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719901908] [2025-01-24 04:15:16,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719901908] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:16,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427539424] [2025-01-24 04:15:16,212 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:15:16,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:16,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:16,214 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:16,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-24 04:15:16,272 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 49 statements into 3 equivalence classes. [2025-01-24 04:15:16,305 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 49 of 49 statements. [2025-01-24 04:15:16,305 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-24 04:15:16,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:16,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-01-24 04:15:16,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:16,688 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:15:16,688 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:17,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:15:17,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 114 [2025-01-24 04:15:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-24 04:15:17,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427539424] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:17,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:17,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 12] total 39 [2025-01-24 04:15:17,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474124666] [2025-01-24 04:15:17,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:17,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-01-24 04:15:17,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:17,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-01-24 04:15:17,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1348, Unknown=0, NotChecked=0, Total=1560 [2025-01-24 04:15:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:17,418 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:17,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.325) internal successors, (133), 39 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:17,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:19,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:15:19,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-24 04:15:19,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:19,627 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:15:19,627 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:19,627 INFO L139 ounterexampleChecker]: Examining path program with hash 1264015940, occurence #1 [2025-01-24 04:15:19,627 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:15:19,627 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:19,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:19,627 INFO L85 PathProgramCache]: Analyzing trace with hash -556171454, now seen corresponding path program 4 times [2025-01-24 04:15:19,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:19,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502144880] [2025-01-24 04:15:19,628 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:15:19,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:19,634 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 84 statements into 2 equivalence classes. [2025-01-24 04:15:19,646 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 84 of 84 statements. [2025-01-24 04:15:19,646 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:15:19,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 61 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:19,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502144880] [2025-01-24 04:15:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502144880] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316118264] [2025-01-24 04:15:19,947 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-24 04:15:19,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:19,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:19,950 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:19,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-24 04:15:20,016 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 84 statements into 2 equivalence classes. [2025-01-24 04:15:20,057 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 84 of 84 statements. [2025-01-24 04:15:20,057 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-24 04:15:20,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:20,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-24 04:15:20,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:20,334 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 100 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-24 04:15:20,334 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 56 proven. 59 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-24 04:15:20,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316118264] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:20,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:20,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 36 [2025-01-24 04:15:20,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495431238] [2025-01-24 04:15:20,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:20,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-01-24 04:15:20,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:20,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-01-24 04:15:20,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=1057, Unknown=0, NotChecked=0, Total=1332 [2025-01-24 04:15:20,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:20,617 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:20,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.702702702702703) internal successors, (174), 36 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:15:20,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:15:20,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:15:20,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-24 04:15:20,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:20,974 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:15:20,974 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:20,975 INFO L139 ounterexampleChecker]: Examining path program with hash 1264015940, occurence #2 [2025-01-24 04:15:20,975 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:15:20,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:15:20,975 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:20,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-24 04:15:20,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:20,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-24 04:15:20,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:20,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-24 04:15:20,975 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:20,975 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-24 04:15:20,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:20,993 INFO L85 PathProgramCache]: Analyzing trace with hash 834177574, now seen corresponding path program 1 times [2025-01-24 04:15:20,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:20,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516049389] [2025-01-24 04:15:20,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:20,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:20,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-24 04:15:21,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-24 04:15:21,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:21,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:21,002 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:21,003 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:21,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-01-24 04:15:21,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:21,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1194694547, now seen corresponding path program 1 times [2025-01-24 04:15:21,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:21,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124794182] [2025-01-24 04:15:21,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:21,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:21,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-24 04:15:21,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-24 04:15:21,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:21,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:21,039 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:21,039 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:21,039 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 38 is hopeless, skipping. [2025-01-24 04:15:21,039 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 46 is hopeless, skipping. [2025-01-24 04:15:21,039 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 56 [2025-01-24 04:15:21,039 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,039 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-01-24 04:15:21,040 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:21,040 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 64 is hopeless, skipping. [2025-01-24 04:15:21,040 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-01-24 04:15:21,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1879784828, now seen corresponding path program 1 times [2025-01-24 04:15:21,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:21,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616620016] [2025-01-24 04:15:21,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:21,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:21,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-24 04:15:21,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-24 04:15:21,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:21,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 61 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:21,384 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 04:15:21,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616620016] [2025-01-24 04:15:21,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616620016] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:21,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [611352848] [2025-01-24 04:15:21,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:21,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:21,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-24 04:15:21,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-24 04:15:21,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:21,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:21,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-24 04:15:21,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:21,695 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 80 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:21,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [611352848] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:21,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:15:21,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2025-01-24 04:15:21,696 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:15:21,696 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-01-24 04:15:21,696 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:21,696 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:15:21,696 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:15:21,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:21,696 INFO L85 PathProgramCache]: Analyzing trace with hash 941081899, now seen corresponding path program 5 times [2025-01-24 04:15:21,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:15:21,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734064183] [2025-01-24 04:15:21,696 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:15:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:21,703 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 85 statements into 6 equivalence classes. [2025-01-24 04:15:21,722 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 85 of 85 statements. [2025-01-24 04:15:21,723 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-01-24 04:15:21,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:22,013 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 88 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:22,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:15:22,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734064183] [2025-01-24 04:15:22,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734064183] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:22,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570715624] [2025-01-24 04:15:22,013 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-24 04:15:22,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:15:22,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:15:22,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:15:22,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-24 04:15:22,075 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 85 statements into 6 equivalence classes. [2025-01-24 04:15:22,144 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 85 of 85 statements. [2025-01-24 04:15:22,144 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-01-24 04:15:22,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:22,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-24 04:15:22,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:15:22,517 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 88 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:22,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:15:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 105 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:22,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570715624] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:15:22,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:15:22,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 16] total 45 [2025-01-24 04:15:22,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060188420] [2025-01-24 04:15:22,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:15:22,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-01-24 04:15:22,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:15:22,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-01-24 04:15:22,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=536, Invalid=1534, Unknown=0, NotChecked=0, Total=2070 [2025-01-24 04:15:22,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:22,944 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:15:22,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.5) internal successors, (207), 45 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:15:22,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:22,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:22,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:22,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:22,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:15:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:15:22,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:15:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:15:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:15:23,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-24 04:15:23,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable26,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27,SelfDestructingSolverStorable28 [2025-01-24 04:15:23,391 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:15:23,391 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:15:23,392 INFO L139 ounterexampleChecker]: Examining path program with hash 1264015940, occurence #3 [2025-01-24 04:15:23,392 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:15:23,392 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:15:23,392 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:23,392 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-01-24 04:15:23,392 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:23,392 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-24 04:15:23,392 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:23,392 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-24 04:15:23,392 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:15:23,392 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-01-24 04:15:23,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:23,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2014754904, now seen corresponding path program 1 times [2025-01-24 04:15:23,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:23,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902226996] [2025-01-24 04:15:23,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:23,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:23,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-24 04:15:23,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-24 04:15:23,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:23,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:23,418 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:23,418 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:23,418 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-01-24 04:15:23,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:23,439 INFO L85 PathProgramCache]: Analyzing trace with hash -550965739, now seen corresponding path program 1 times [2025-01-24 04:15:23,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:23,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059156693] [2025-01-24 04:15:23,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:23,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:23,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-24 04:15:23,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-24 04:15:23,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:23,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:15:23,458 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:15:23,458 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:15:23,458 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 39 is hopeless, skipping. [2025-01-24 04:15:23,458 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 47 is hopeless, skipping. [2025-01-24 04:15:23,458 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-01-24 04:15:23,458 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:23,459 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-01-24 04:15:23,459 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:15:23,459 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 65 is hopeless, skipping. [2025-01-24 04:15:23,459 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-01-24 04:15:23,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:15:23,503 INFO L85 PathProgramCache]: Analyzing trace with hash 634263046, now seen corresponding path program 1 times [2025-01-24 04:15:23,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:15:23,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087505524] [2025-01-24 04:15:23,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:23,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:23,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-24 04:15:23,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-24 04:15:23,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:23,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 19 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:15:26,559 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 04:15:26,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087505524] [2025-01-24 04:15:26,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087505524] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:15:26,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [470974993] [2025-01-24 04:15:26,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:15:26,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:15:26,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-24 04:15:26,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-24 04:15:26,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:15:26,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:15:26,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-01-24 04:15:26,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 3 proven. 130 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:05,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [470974993] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:05,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:16:05,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 45 [2025-01-24 04:16:05,196 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:16:05,196 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 83 [2025-01-24 04:16:05,196 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:05,196 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:16:05,196 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:16:05,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:05,197 INFO L85 PathProgramCache]: Analyzing trace with hash 111295586, now seen corresponding path program 6 times [2025-01-24 04:16:05,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:16:05,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150572328] [2025-01-24 04:16:05,197 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 04:16:05,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:05,207 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 86 statements into 6 equivalence classes. [2025-01-24 04:16:05,235 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 86 of 86 statements. [2025-01-24 04:16:05,235 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-24 04:16:05,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 83 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:05,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:16:05,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150572328] [2025-01-24 04:16:05,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150572328] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:05,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417620058] [2025-01-24 04:16:05,587 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-24 04:16:05,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:05,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:16:05,589 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:16:05,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-24 04:16:05,667 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 86 statements into 6 equivalence classes. [2025-01-24 04:16:05,860 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 86 of 86 statements. [2025-01-24 04:16:05,861 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-24 04:16:05,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:05,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-24 04:16:05,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:06,300 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 83 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:06,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:16:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 81 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:06,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417620058] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:16:06,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:16:06,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 51 [2025-01-24 04:16:06,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688288028] [2025-01-24 04:16:06,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:16:06,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2025-01-24 04:16:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:16:06,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2025-01-24 04:16:06,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=683, Invalid=1969, Unknown=0, NotChecked=0, Total=2652 [2025-01-24 04:16:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:06,841 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:16:06,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.461538461538462) internal successors, (232), 51 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:06,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:16:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:16:07,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-24 04:16:07,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:07,574 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:16:07,574 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:16:07,574 INFO L139 ounterexampleChecker]: Examining path program with hash 1264015940, occurence #4 [2025-01-24 04:16:07,574 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:16:07,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:16:07,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:07,576 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-01-24 04:16:07,576 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:07,578 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-24 04:16:07,579 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:07,579 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-24 04:16:07,580 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:07,580 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-01-24 04:16:07,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:07,603 INFO L85 PathProgramCache]: Analyzing trace with hash -137348836, now seen corresponding path program 1 times [2025-01-24 04:16:07,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:07,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619526249] [2025-01-24 04:16:07,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:07,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:07,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-24 04:16:07,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-24 04:16:07,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:07,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:07,619 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:07,619 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:07,620 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-01-24 04:16:07,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1168139913, now seen corresponding path program 1 times [2025-01-24 04:16:07,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:07,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074238222] [2025-01-24 04:16:07,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:07,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:07,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-24 04:16:07,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-24 04:16:07,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:07,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:07,664 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:07,665 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:07,665 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 40 is hopeless, skipping. [2025-01-24 04:16:07,665 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 48 is hopeless, skipping. [2025-01-24 04:16:07,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2025-01-24 04:16:07,665 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:07,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2025-01-24 04:16:07,665 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:07,665 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 66 is hopeless, skipping. [2025-01-24 04:16:07,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2025-01-24 04:16:07,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:07,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1260335482, now seen corresponding path program 1 times [2025-01-24 04:16:07,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:07,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970263588] [2025-01-24 04:16:07,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:07,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:07,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-24 04:16:07,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-24 04:16:07,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:07,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:12,553 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 7 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:12,553 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 04:16:12,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970263588] [2025-01-24 04:16:12,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970263588] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:12,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1411496440] [2025-01-24 04:16:12,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:12,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:12,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-24 04:16:12,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-24 04:16:12,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:12,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:12,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 68 conjuncts are in the unsatisfiable core [2025-01-24 04:16:12,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:14,435 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 20 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:14,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1411496440] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:14,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:16:14,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 46 [2025-01-24 04:16:14,435 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:16:14,435 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 84 [2025-01-24 04:16:14,435 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:14,435 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:16:14,435 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:16:14,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:14,436 INFO L85 PathProgramCache]: Analyzing trace with hash 157723659, now seen corresponding path program 7 times [2025-01-24 04:16:14,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:16:14,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59019705] [2025-01-24 04:16:14,436 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-24 04:16:14,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:14,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-24 04:16:14,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-24 04:16:14,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:14,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 29 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:17,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:16:17,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59019705] [2025-01-24 04:16:17,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59019705] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:17,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367464762] [2025-01-24 04:16:17,593 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-24 04:16:17,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:17,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:16:17,595 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:16:17,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-24 04:16:17,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-24 04:16:17,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-24 04:16:17,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:17,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:17,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 84 conjuncts are in the unsatisfiable core [2025-01-24 04:16:17,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:19,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:16:19,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 73 treesize of output 25 [2025-01-24 04:16:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 4 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:19,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:16:21,577 INFO L349 Elim1Store]: treesize reduction 150, result has 57.0 percent of original size [2025-01-24 04:16:21,577 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 250 [2025-01-24 04:16:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:22,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367464762] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:16:22,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:16:22,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 28, 28] total 87 [2025-01-24 04:16:22,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941606649] [2025-01-24 04:16:22,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:16:22,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2025-01-24 04:16:22,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:16:22,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2025-01-24 04:16:22,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1144, Invalid=6512, Unknown=0, NotChecked=0, Total=7656 [2025-01-24 04:16:22,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:22,555 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:16:22,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.897727272727273) internal successors, (255), 87 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:16:22,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:22,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:16:22,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:16:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:16:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2025-01-24 04:16:29,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-24 04:16:29,455 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,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35,SelfDestructingSolverStorable36,SelfDestructingSolverStorable37,SelfDestructingSolverStorable38 [2025-01-24 04:16:29,455 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:16:29,455 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:16:29,456 INFO L139 ounterexampleChecker]: Examining path program with hash 1264015940, occurence #5 [2025-01-24 04:16:29,456 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:16:29,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:16:29,456 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-24 04:16:29,456 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:29,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-24 04:16:29,456 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:29,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-01-24 04:16:29,456 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:29,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-01-24 04:16:29,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:29,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1766346673, now seen corresponding path program 1 times [2025-01-24 04:16:29,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:29,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806122059] [2025-01-24 04:16:29,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:29,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:29,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-24 04:16:29,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-24 04:16:29,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:29,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:29,483 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:29,483 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:29,483 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-01-24 04:16:29,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:29,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1418919356, now seen corresponding path program 1 times [2025-01-24 04:16:29,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:29,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038054003] [2025-01-24 04:16:29,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:29,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:29,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-24 04:16:29,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-24 04:16:29,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:29,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:29,512 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:29,512 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:29,512 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 42 is hopeless, skipping. [2025-01-24 04:16:29,512 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 50 is hopeless, skipping. [2025-01-24 04:16:29,512 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 58 is hopeless, skipping. [2025-01-24 04:16:29,512 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 66 is hopeless, skipping. [2025-01-24 04:16:29,512 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 76 [2025-01-24 04:16:29,512 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,512 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-01-24 04:16:29,512 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:29,513 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 84 is hopeless, skipping. [2025-01-24 04:16:29,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-01-24 04:16:29,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:29,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1314317411, now seen corresponding path program 1 times [2025-01-24 04:16:29,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:29,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837430754] [2025-01-24 04:16:29,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:29,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:29,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-24 04:16:29,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-24 04:16:29,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:29,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:33,964 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 48 proven. 208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:33,965 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 04:16:33,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837430754] [2025-01-24 04:16:33,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837430754] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:33,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [676206463] [2025-01-24 04:16:33,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:33,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:33,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-24 04:16:34,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-24 04:16:34,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:34,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:34,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 90 conjuncts are in the unsatisfiable core [2025-01-24 04:16:34,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:36,165 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:36,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [676206463] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:36,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:16:36,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 50 [2025-01-24 04:16:36,165 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:16:36,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2025-01-24 04:16:36,165 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:36,165 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:16:36,165 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:16:36,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:36,166 INFO L85 PathProgramCache]: Analyzing trace with hash -691068895, now seen corresponding path program 8 times [2025-01-24 04:16:36,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:16:36,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451998220] [2025-01-24 04:16:36,166 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:16:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:36,173 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-01-24 04:16:36,194 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 105 of 105 statements. [2025-01-24 04:16:36,194 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:16:36,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 92 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:40,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:16:40,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451998220] [2025-01-24 04:16:40,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451998220] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:16:40,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528207098] [2025-01-24 04:16:40,767 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:16:40,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:16:40,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:16:40,768 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:16:40,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-24 04:16:40,847 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-01-24 04:16:40,894 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 105 of 105 statements. [2025-01-24 04:16:40,894 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:16:40,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:16:40,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 101 conjuncts are in the unsatisfiable core [2025-01-24 04:16:40,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:16:43,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:16:43,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 105 treesize of output 33 [2025-01-24 04:16:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:43,939 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:16:47,704 INFO L349 Elim1Store]: treesize reduction 280, result has 55.2 percent of original size [2025-01-24 04:16:47,704 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 279 treesize of output 410 [2025-01-24 04:16:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:16:49,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528207098] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:16:49,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-24 04:16:49,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 35, 35] total 105 [2025-01-24 04:16:49,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173767207] [2025-01-24 04:16:49,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-24 04:16:49,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2025-01-24 04:16:49,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-24 04:16:49,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2025-01-24 04:16:49,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1553, Invalid=9577, Unknown=0, NotChecked=0, Total=11130 [2025-01-24 04:16:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:49,455 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:16:49,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 2.8773584905660377) internal successors, (305), 105 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:16:49,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:49,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:49,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:49,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:49,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2025-01-24 04:16:49,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2025-01-24 04:16:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2025-01-24 04:16:58,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-24 04:16:58,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,SelfDestructingSolverStorable41,SelfDestructingSolverStorable42,SelfDestructingSolverStorable43,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-01-24 04:16:58,492 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:16:58,492 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:16:58,492 INFO L139 ounterexampleChecker]: Examining path program with hash 1264015940, occurence #6 [2025-01-24 04:16:58,492 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:16:58,492 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:16:58,492 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:58,492 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-24 04:16:58,492 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:58,492 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-24 04:16:58,492 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:58,492 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-01-24 04:16:58,493 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:16:58,493 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-24 04:16:58,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash 429715330, now seen corresponding path program 1 times [2025-01-24 04:16:58,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:58,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709483857] [2025-01-24 04:16:58,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:58,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:58,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-24 04:16:58,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:16:58,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:58,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:58,521 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:58,521 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:58,521 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-01-24 04:16:58,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:58,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1899715823, now seen corresponding path program 1 times [2025-01-24 04:16:58,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:58,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706975871] [2025-01-24 04:16:58,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:58,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:58,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-24 04:16:58,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-24 04:16:58,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:58,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-24 04:16:58,582 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-01-24 04:16:58,582 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-01-24 04:16:58,582 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 44 is hopeless, skipping. [2025-01-24 04:16:58,583 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 52 is hopeless, skipping. [2025-01-24 04:16:58,583 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 60 is hopeless, skipping. [2025-01-24 04:16:58,583 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 68 is hopeless, skipping. [2025-01-24 04:16:58,583 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 76 is hopeless, skipping. [2025-01-24 04:16:58,583 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 84 is hopeless, skipping. [2025-01-24 04:16:58,583 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 94 [2025-01-24 04:16:58,583 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:58,583 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-01-24 04:16:58,583 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:16:58,583 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 102 is hopeless, skipping. [2025-01-24 04:16:58,583 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-01-24 04:16:58,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:16:58,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1905701708, now seen corresponding path program 1 times [2025-01-24 04:16:58,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-24 04:16:58,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137125744] [2025-01-24 04:16:58,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:16:58,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:16:58,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-24 04:16:58,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-24 04:16:58,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:16:58,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:17:06,086 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 13 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:17:06,086 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-24 04:17:06,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137125744] [2025-01-24 04:17:06,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137125744] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:17:06,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [487792071] [2025-01-24 04:17:06,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:17:06,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:17:06,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-24 04:17:06,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-24 04:17:06,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:17:06,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:17:06,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 136 conjuncts are in the unsatisfiable core [2025-01-24 04:17:06,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:17:06,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-01-24 04:17:06,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-24 04:17:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 104 proven. 299 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:17:09,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [487792071] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:17:09,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:17:09,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35] total 71 [2025-01-24 04:17:09,768 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:17:09,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2025-01-24 04:17:09,768 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:17:09,769 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:17:09,769 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:17:09,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:17:09,769 INFO L85 PathProgramCache]: Analyzing trace with hash 366915639, now seen corresponding path program 9 times [2025-01-24 04:17:09,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-24 04:17:09,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830620463] [2025-01-24 04:17:09,769 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:17:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-24 04:17:09,778 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 123 statements into 10 equivalence classes. [2025-01-24 04:17:09,953 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 123 of 123 statements. [2025-01-24 04:17:09,953 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-01-24 04:17:09,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:17:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 252 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:17:15,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-24 04:17:15,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830620463] [2025-01-24 04:17:15,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830620463] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-24 04:17:15,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201699853] [2025-01-24 04:17:15,427 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:17:15,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:17:15,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:17:15,429 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:17:15,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-24 04:17:15,519 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 123 statements into 10 equivalence classes. [2025-01-24 04:17:15,909 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 123 of 123 statements. [2025-01-24 04:17:15,909 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-01-24 04:17:15,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:17:15,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 119 conjuncts are in the unsatisfiable core [2025-01-24 04:17:15,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:17:16,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-24 04:17:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 60 proven. 343 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:17:19,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:17:25,342 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 383 treesize of output 343 [2025-01-24 04:17:27,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-24 04:17:27,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 76172 treesize of output 41755 [2025-01-24 04:18:55,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2025-01-24 04:18:55,213 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-24 04:18:55,214 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-24 04:18:55,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-24 04:18:55,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,SelfDestructingSolverStorable45,SelfDestructingSolverStorable46,SelfDestructingSolverStorable47,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2025-01-24 04:18:55,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-24 04:18:55,421 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 70 more [2025-01-24 04:18:55,428 INFO L158 Benchmark]: Toolchain (without parser) took 243373.27ms. Allocated memory was 83.9MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 58.5MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2025-01-24 04:18:55,428 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 04:18:55,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.04ms. Allocated memory is still 83.9MB. Free memory was 58.4MB in the beginning and 44.6MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-24 04:18:55,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.35ms. Allocated memory is still 83.9MB. Free memory was 44.6MB in the beginning and 43.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 04:18:55,428 INFO L158 Benchmark]: Boogie Preprocessor took 38.52ms. Allocated memory is still 83.9MB. Free memory was 43.0MB in the beginning and 41.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-24 04:18:55,428 INFO L158 Benchmark]: RCFGBuilder took 655.29ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 28.6MB in the end (delta: 13.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2025-01-24 04:18:55,429 INFO L158 Benchmark]: TraceAbstraction took 242349.81ms. Allocated memory was 83.9MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 28.1MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2025-01-24 04:18:55,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.04ms. Allocated memory is still 83.9MB. Free memory was 58.4MB in the beginning and 44.6MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.35ms. Allocated memory is still 83.9MB. Free memory was 44.6MB in the beginning and 43.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.52ms. Allocated memory is still 83.9MB. Free memory was 43.0MB in the beginning and 41.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 655.29ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 28.6MB in the end (delta: 13.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * TraceAbstraction took 242349.81ms. Allocated memory was 83.9MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 28.1MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-send-receive.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 4eda2bf92bccdcc8638b67653fb7fdefc015ff9c815b317ad1009deb61d04585 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-24 04:18:57,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-24 04:18:57,555 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-01-24 04:18:57,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-24 04:18:57,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-24 04:18:57,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-24 04:18:57,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-24 04:18:57,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-24 04:18:57,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-24 04:18:57,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-24 04:18:57,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-24 04:18:57,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-24 04:18:57,592 INFO L153 SettingsManager]: * Use SBE=true [2025-01-24 04:18:57,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-24 04:18:57,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-24 04:18:57,593 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-24 04:18:57,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-24 04:18:57,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-24 04:18:57,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-24 04:18:57,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-24 04:18:57,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-24 04:18:57,594 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-24 04:18:57,594 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-24 04:18:57,594 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-24 04:18:57,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-24 04:18:57,594 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-24 04:18:57,594 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-24 04:18:57,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-24 04:18:57,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-24 04:18:57,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 04:18:57,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-24 04:18:57,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-24 04:18:57,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-24 04:18:57,596 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-24 04:18:57,596 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-24 04:18:57,596 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 -> 4eda2bf92bccdcc8638b67653fb7fdefc015ff9c815b317ad1009deb61d04585 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2025-01-24 04:18:57,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-24 04:18:57,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-24 04:18:57,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-24 04:18:57,867 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-24 04:18:57,867 INFO L274 PluginConnector]: CDTParser initialized [2025-01-24 04:18:57,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2025-01-24 04:18:59,139 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/3d2c75d2f/93be5ba7ba34499a81fc45d9334861ef/FLAG47d7910ff [2025-01-24 04:18:59,369 INFO L384 CDTParser]: Found 1 translation units. [2025-01-24 04:18:59,369 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2025-01-24 04:18:59,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/3d2c75d2f/93be5ba7ba34499a81fc45d9334861ef/FLAG47d7910ff [2025-01-24 04:18:59,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/3d2c75d2f/93be5ba7ba34499a81fc45d9334861ef [2025-01-24 04:18:59,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-24 04:18:59,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-24 04:18:59,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-24 04:18:59,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-24 04:18:59,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-24 04:18:59,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbb779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59, skipping insertion in model container [2025-01-24 04:18:59,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-24 04:18:59,587 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.wvr.c[3146,3159] [2025-01-24 04:18:59,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 04:18:59,608 INFO L200 MainTranslator]: Completed pre-run [2025-01-24 04:18:59,670 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.wvr.c[3146,3159] [2025-01-24 04:18:59,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-24 04:18:59,697 INFO L204 MainTranslator]: Completed translation [2025-01-24 04:18:59,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59 WrapperNode [2025-01-24 04:18:59,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-24 04:18:59,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-24 04:18:59,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-24 04:18:59,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-24 04:18:59,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,731 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 136 [2025-01-24 04:18:59,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-24 04:18:59,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-24 04:18:59,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-24 04:18:59,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-24 04:18:59,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,751 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-24 04:18:59,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-24 04:18:59,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-24 04:18:59,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-24 04:18:59,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (1/1) ... [2025-01-24 04:18:59,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-24 04:18:59,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:18:59,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-24 04:18:59,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-24 04:18:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-24 04:18:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-01-24 04:18:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-01-24 04:18:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-24 04:18:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-24 04:18:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-24 04:18:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-24 04:18:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-24 04:18:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-24 04:18:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-24 04:18:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-24 04:18:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-24 04:18:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-24 04:18:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-24 04:18:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-01-24 04:18:59,822 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-24 04:18:59,920 INFO L234 CfgBuilder]: Building ICFG [2025-01-24 04:18:59,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-24 04:19:00,195 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-24 04:19:00,196 INFO L283 CfgBuilder]: Performing block encoding [2025-01-24 04:19:00,438 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-24 04:19:00,439 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-24 04:19:00,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:19:00 BoogieIcfgContainer [2025-01-24 04:19:00,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-24 04:19:00,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-24 04:19:00,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-24 04:19:00,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-24 04:19:00,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 04:18:59" (1/3) ... [2025-01-24 04:19:00,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cdb5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:19:00, skipping insertion in model container [2025-01-24 04:19:00,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:18:59" (2/3) ... [2025-01-24 04:19:00,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38cdb5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:19:00, skipping insertion in model container [2025-01-24 04:19:00,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:19:00" (3/3) ... [2025-01-24 04:19:00,449 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2025-01-24 04:19:00,464 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-24 04:19:00,465 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-send-receive.wvr.c that has 4 procedures, 33 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-24 04:19:00,466 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-24 04:19:00,535 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-24 04:19:00,570 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 04:19:00,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-24 04:19:00,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:00,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-24 04:19:00,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-24 04:19:00,657 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-24 04:19:00,672 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-24 04:19:00,679 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;@52241297, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-24 04:19:00,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-24 04:19:01,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:19:01,275 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:19:01,277 INFO L139 ounterexampleChecker]: Examining path program with hash 475495291, occurence #1 [2025-01-24 04:19:01,277 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:19:01,277 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:19:01,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:01,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1399015661, now seen corresponding path program 1 times [2025-01-24 04:19:01,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:01,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108529990] [2025-01-24 04:19:01,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:19:01,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:01,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:01,295 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:01,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-24 04:19:01,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-24 04:19:01,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-24 04:19:01,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:19:01,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:01,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-24 04:19:01,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:01,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:19:01,622 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:01,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108529990] [2025-01-24 04:19:01,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108529990] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:19:01,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:19:01,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-24 04:19:01,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431209722] [2025-01-24 04:19:01,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:19:01,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-24 04:19:01,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:19:01,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-24 04:19:01,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-24 04:19:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:01,649 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:19:01,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:19:01,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:02,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-24 04:19:02,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:02,257 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:19:02,257 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:19:02,257 INFO L139 ounterexampleChecker]: Examining path program with hash 651684300, occurence #1 [2025-01-24 04:19:02,257 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:19:02,257 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:19:02,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:02,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1355168076, now seen corresponding path program 1 times [2025-01-24 04:19:02,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:02,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31744864] [2025-01-24 04:19:02,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:19:02,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:02,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:02,261 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:02,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-24 04:19:02,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-24 04:19:02,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:19:02,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:19:02,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:02,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-24 04:19:02,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:02,424 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:19:02,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:02,559 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:02,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31744864] [2025-01-24 04:19:02,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31744864] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:19:02,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:19:02,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-01-24 04:19:02,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423510571] [2025-01-24 04:19:02,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 04:19:02,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-24 04:19:02,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:19:02,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-24 04:19:02,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-01-24 04:19:02,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:02,562 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:19:02,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:19:02,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:02,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:03,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-24 04:19:04,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:04,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:19:04,008 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:19:04,008 INFO L139 ounterexampleChecker]: Examining path program with hash -1194002776, occurence #1 [2025-01-24 04:19:04,008 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:19:04,008 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:19:04,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:04,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1803600455, now seen corresponding path program 2 times [2025-01-24 04:19:04,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:04,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414218245] [2025-01-24 04:19:04,009 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:19:04,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:04,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:04,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:04,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-24 04:19:04,059 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-24 04:19:04,079 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-24 04:19:04,079 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-24 04:19:04,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:04,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-24 04:19:04,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:04,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:19:04,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:04,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414218245] [2025-01-24 04:19:04,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414218245] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:19:04,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:19:04,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-24 04:19:04,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094238289] [2025-01-24 04:19:04,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:19:04,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:19:04,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:19:04,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:19:04,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:19:04,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:04,100 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:19:04,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:19:04,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:04,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:04,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:04,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-24 04:19:04,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:04,468 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:19:04,468 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:19:04,468 INFO L139 ounterexampleChecker]: Examining path program with hash 1503507783, occurence #1 [2025-01-24 04:19:04,468 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:19:04,468 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:19:04,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:04,469 INFO L85 PathProgramCache]: Analyzing trace with hash 823498201, now seen corresponding path program 1 times [2025-01-24 04:19:04,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:04,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487033248] [2025-01-24 04:19:04,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:19:04,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:04,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:04,473 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:04,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-24 04:19:04,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-24 04:19:04,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-24 04:19:04,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:19:04,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:04,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-24 04:19:04,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:04,575 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:19:04,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:04,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487033248] [2025-01-24 04:19:04,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487033248] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:19:04,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:19:04,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-24 04:19:04,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645863721] [2025-01-24 04:19:04,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:19:04,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-24 04:19:04,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:19:04,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-24 04:19:04,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-24 04:19:04,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:04,577 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:19:04,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:19:04,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:04,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:04,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:04,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:19:05,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-24 04:19:05,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:05,302 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:19:05,302 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:19:05,302 INFO L139 ounterexampleChecker]: Examining path program with hash 494307769, occurence #1 [2025-01-24 04:19:05,302 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:19:05,302 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:19:05,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1809252882, now seen corresponding path program 3 times [2025-01-24 04:19:05,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:05,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649540613] [2025-01-24 04:19:05,303 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:19:05,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:05,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:05,305 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:05,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-24 04:19:05,351 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 29 statements into 1 equivalence classes. [2025-01-24 04:19:05,368 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-24 04:19:05,368 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-24 04:19:05,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:05,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-24 04:19:05,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:05,438 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:19:05,439 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:05,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649540613] [2025-01-24 04:19:05,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649540613] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:19:05,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:19:05,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-24 04:19:05,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333504454] [2025-01-24 04:19:05,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:19:05,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-24 04:19:05,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:19:05,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-24 04:19:05,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-24 04:19:05,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:05,440 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:19:05,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:19:05,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:05,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:05,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:05,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:19:05,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:19:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:05,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-24 04:19:05,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:05,734 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:19:05,734 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:19:05,734 INFO L139 ounterexampleChecker]: Examining path program with hash 494307769, occurence #2 [2025-01-24 04:19:05,734 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:19:05,734 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:19:05,735 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:19:05,735 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-24 04:19:05,746 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:19:05,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-01-24 04:19:05,746 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:19:05,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-24 04:19:05,746 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:19:05,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-01-24 04:19:05,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash -531166627, now seen corresponding path program 1 times [2025-01-24 04:19:05,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:05,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520294140] [2025-01-24 04:19:05,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:19:05,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:05,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:05,820 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:05,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-24 04:19:05,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-24 04:19:05,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-24 04:19:05,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:19:05,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:05,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-24 04:19:05,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:06,012 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:19:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:06,199 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:06,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520294140] [2025-01-24 04:19:06,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520294140] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:19:06,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:19:06,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2025-01-24 04:19:06,199 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:19:06,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-01-24 04:19:06,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:19:06,200 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:19:06,200 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:19:06,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:06,200 INFO L85 PathProgramCache]: Analyzing trace with hash 319914091, now seen corresponding path program 1 times [2025-01-24 04:19:06,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:06,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471831315] [2025-01-24 04:19:06,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:19:06,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:06,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:06,204 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:06,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-24 04:19:06,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-24 04:19:06,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-24 04:19:06,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:19:06,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:06,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-24 04:19:06,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:06,384 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:19:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:06,572 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:06,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471831315] [2025-01-24 04:19:06,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471831315] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:19:06,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:19:06,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-01-24 04:19:06,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550300880] [2025-01-24 04:19:06,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-24 04:19:06,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-24 04:19:06,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:19:06,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-24 04:19:06,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-24 04:19:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:06,574 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:19:06,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:19:06,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:06,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:06,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:06,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:19:06,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:06,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:19:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:19:06,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-24 04:19:06,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-24 04:19:07,151 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,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:07,151 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:19:07,151 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:19:07,152 INFO L139 ounterexampleChecker]: Examining path program with hash 494307769, occurence #3 [2025-01-24 04:19:07,152 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-24 04:19:07,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-24 04:19:07,152 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-24 04:19:07,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-01-24 04:19:07,152 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:19:07,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-01-24 04:19:07,152 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:19:07,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-01-24 04:19:07,152 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:19:07,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-24 04:19:07,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:07,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1791278909, now seen corresponding path program 1 times [2025-01-24 04:19:07,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:07,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497760192] [2025-01-24 04:19:07,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-24 04:19:07,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:07,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:07,237 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:07,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-24 04:19:07,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-24 04:19:07,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-24 04:19:07,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-24 04:19:07,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:07,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-24 04:19:07,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:07,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-24 04:19:07,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-24 04:19:07,721 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:07,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497760192] [2025-01-24 04:19:07,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497760192] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-24 04:19:07,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-24 04:19:07,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2025-01-24 04:19:07,721 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-01-24 04:19:07,722 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-01-24 04:19:07,722 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-24 04:19:07,722 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-24 04:19:07,722 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:19:07,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:07,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1899580814, now seen corresponding path program 2 times [2025-01-24 04:19:07,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:07,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500741656] [2025-01-24 04:19:07,722 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-24 04:19:07,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:07,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:07,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:07,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-24 04:19:07,777 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-24 04:19:07,798 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 29 of 31 statements. [2025-01-24 04:19:07,798 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-24 04:19:07,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-24 04:19:07,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-24 04:19:07,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-24 04:19:07,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-24 04:19:07,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-24 04:19:07,865 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-24 04:19:07,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500741656] [2025-01-24 04:19:07,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500741656] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-24 04:19:07,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-24 04:19:07,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-24 04:19:07,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270044839] [2025-01-24 04:19:07,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-24 04:19:07,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-24 04:19:07,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-24 04:19:07,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-24 04:19:07,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-24 04:19:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:07,867 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-24 04:19:07,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-24 04:19:07,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:07,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:07,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:07,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:19:07,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:07,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:19:07,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-24 04:19:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-24 04:19:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-24 04:19:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-24 04:19:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-24 04:19:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-24 04:19:08,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-24 04:19:08,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-24 04:19:08,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-24 04:19:08,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:08,450 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-24 04:19:08,450 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-24 04:19:08,450 INFO L139 ounterexampleChecker]: Examining path program with hash -1011110459, occurence #1 [2025-01-24 04:19:08,450 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-24 04:19:08,450 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-24 04:19:08,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-24 04:19:08,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1572854002, now seen corresponding path program 3 times [2025-01-24 04:19:08,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-24 04:19:08,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337631878] [2025-01-24 04:19:08,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-24 04:19:08,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-24 04:19:08,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-24 04:19:08,452 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-24 04:19:08,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-24 04:19:08,494 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 31 statements into 2 equivalence classes. Killed by 15