./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NONE --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-more-min-array-hom.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 0224e82797c7b26c7800eaf85be5e5678e7961d21aa4e2312eda2860d261b33a --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 12:55:01,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 12:55:01,448 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 12:55:01,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 12:55:01,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 12:55:01,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 12:55:01,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 12:55:01,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 12:55:01,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 12:55:01,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 12:55:01,500 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 12:55:01,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 12:55:01,501 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 12:55:01,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 12:55:01,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 12:55:01,501 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 12:55:01,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 12:55:01,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 12:55:01,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 12:55:01,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 12:55:01,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 12:55:01,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 12:55:01,502 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 12:55:01,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 12:55:01,502 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 12:55:01,502 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 12:55:01,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 12:55:01,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 12:55:01,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 12:55:01,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 12:55:01,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 12:55:01,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 12:55:01,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 12:55:01,503 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 12:55:01,504 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 12:55:01,504 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 -> 0224e82797c7b26c7800eaf85be5e5678e7961d21aa4e2312eda2860d261b33a 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 -> NONE [2025-01-23 12:55:01,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 12:55:01,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 12:55:01,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 12:55:01,750 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 12:55:01,750 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 12:55:01,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2025-01-23 12:55:02,918 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/a03cba3ee/7b7f9a799e904717962d8629c8c5a784/FLAGfc851e84e [2025-01-23 12:55:03,130 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 12:55:03,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2025-01-23 12:55:03,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/a03cba3ee/7b7f9a799e904717962d8629c8c5a784/FLAGfc851e84e [2025-01-23 12:55:03,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/a03cba3ee/7b7f9a799e904717962d8629c8c5a784 [2025-01-23 12:55:03,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 12:55:03,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 12:55:03,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 12:55:03,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 12:55:03,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 12:55:03,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8dbafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03, skipping insertion in model container [2025-01-23 12:55:03,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 12:55:03,625 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-more-min-array-hom.wvr.c[2625,2638] [2025-01-23 12:55:03,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 12:55:03,639 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 12:55:03,680 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-more-min-array-hom.wvr.c[2625,2638] [2025-01-23 12:55:03,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 12:55:03,690 INFO L204 MainTranslator]: Completed translation [2025-01-23 12:55:03,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03 WrapperNode [2025-01-23 12:55:03,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 12:55:03,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 12:55:03,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 12:55:03,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 12:55:03,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,713 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 84 [2025-01-23 12:55:03,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 12:55:03,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 12:55:03,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 12:55:03,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 12:55:03,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,722 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 12:55:03,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 12:55:03,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 12:55:03,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 12:55:03,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (1/1) ... [2025-01-23 12:55:03,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 12:55:03,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:55:03,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 12:55:03,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 12:55:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 12:55:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 12:55:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 12:55:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 12:55:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 12:55:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-23 12:55:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-23 12:55:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 12:55:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 12:55:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 12:55:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 12:55:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 12:55:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 12:55:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 12:55:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 12:55:03,765 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 12:55:03,847 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 12:55:03,849 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 12:55:04,027 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 12:55:04,028 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 12:55:04,151 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 12:55:04,152 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 12:55:04,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 12:55:04 BoogieIcfgContainer [2025-01-23 12:55:04,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 12:55:04,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 12:55:04,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 12:55:04,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 12:55:04,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 12:55:03" (1/3) ... [2025-01-23 12:55:04,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a381dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 12:55:04, skipping insertion in model container [2025-01-23 12:55:04,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:55:03" (2/3) ... [2025-01-23 12:55:04,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a381dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 12:55:04, skipping insertion in model container [2025-01-23 12:55:04,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 12:55:04" (3/3) ... [2025-01-23 12:55:04,160 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2025-01-23 12:55:04,171 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 12:55:04,172 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-min-array-hom.wvr.c that has 4 procedures, 30 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-23 12:55:04,172 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 12:55:04,211 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-23 12:55:04,237 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 12:55:04,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 12:55:04,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:55:04,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 12:55:04,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 12:55:04,298 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 12:55:04,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 12:55:04,312 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;@206203d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 12:55:04,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-23 12:55:04,466 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)] === [2025-01-23 12:55:04,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:55:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1845760838, now seen corresponding path program 1 times [2025-01-23 12:55:04,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:55:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727243830] [2025-01-23 12:55:04,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 12:55:04,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:55:04,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-23 12:55:04,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-23 12:55:04,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 12:55:04,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:55:04,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:04,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:55:04,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727243830] [2025-01-23 12:55:04,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727243830] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 12:55:04,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 12:55:04,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 12:55:04,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796835964] [2025-01-23 12:55:04,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 12:55:04,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 12:55:04,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:55:04,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 12:55:04,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 12:55:04,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:55:04,773 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:55:04,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 12:55:04,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:55:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:55:04,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 12:55:04,819 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)] === [2025-01-23 12:55:04,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:55:04,820 INFO L85 PathProgramCache]: Analyzing trace with hash 895985756, now seen corresponding path program 1 times [2025-01-23 12:55:04,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:55:04,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696949615] [2025-01-23 12:55:04,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 12:55:04,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:55:04,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-23 12:55:04,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 12:55:04,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 12:55:04,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:55:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:05,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:55:05,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696949615] [2025-01-23 12:55:05,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696949615] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 12:55:05,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688722132] [2025-01-23 12:55:05,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 12:55:05,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:55:05,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:55:05,080 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 12:55:05,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 12:55:05,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-23 12:55:05,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 12:55:05,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 12:55:05,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:55:05,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 12:55:05,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 12:55:05,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:05,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 12:55:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:05,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688722132] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 12:55:05,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 12:55:05,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2025-01-23 12:55:05,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680681474] [2025-01-23 12:55:05,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 12:55:05,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-23 12:55:05,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:55:05,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-23 12:55:05,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-01-23 12:55:05,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:55:05,376 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:55:05,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.333333333333333) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 12:55:05,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:55:05,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:55:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:55:05,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:55:05,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 12:55:05,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:55:05,782 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)] === [2025-01-23 12:55:05,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:55:05,783 INFO L85 PathProgramCache]: Analyzing trace with hash -9215750, now seen corresponding path program 2 times [2025-01-23 12:55:05,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:55:05,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771812455] [2025-01-23 12:55:05,786 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 12:55:05,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:55:05,795 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-23 12:55:05,803 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 30 statements. [2025-01-23 12:55:05,803 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 12:55:05,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:55:05,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 12:55:05,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:55:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771812455] [2025-01-23 12:55:05,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771812455] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 12:55:05,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 12:55:05,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 12:55:05,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642571129] [2025-01-23 12:55:05,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 12:55:05,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 12:55:05,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:55:05,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 12:55:05,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-23 12:55:05,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:55:05,858 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:55:05,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 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) [2025-01-23 12:55:05,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:55:05,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:55:05,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:55:05,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:55:05,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:55:05,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 12:55:05,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 12:55:05,920 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)] === [2025-01-23 12:55:05,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:55:05,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1807657822, now seen corresponding path program 1 times [2025-01-23 12:55:05,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:55:05,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884976260] [2025-01-23 12:55:05,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 12:55:05,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:55:05,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-23 12:55:05,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-23 12:55:05,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 12:55:05,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:55:06,083 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:06,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:55:06,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884976260] [2025-01-23 12:55:06,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884976260] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 12:55:06,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539547107] [2025-01-23 12:55:06,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 12:55:06,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:55:06,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:55:06,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 12:55:06,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 12:55:06,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-23 12:55:06,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-23 12:55:06,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 12:55:06,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:55:06,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-23 12:55:06,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 12:55:06,329 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:06,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 12:55:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:06,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539547107] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 12:55:06,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 12:55:06,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2025-01-23 12:55:06,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122798361] [2025-01-23 12:55:06,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 12:55:06,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-23 12:55:06,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:55:06,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-23 12:55:06,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2025-01-23 12:55:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:55:06,455 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:55:06,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.523809523809524) internal successors, (95), 20 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 12:55:06,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:55:06,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:55:06,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-23 12:55:06,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:55:06,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:55:06,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:55:06,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 12:55:06,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 12:55:06,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-23 12:55:06,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:55:06,783 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)] === [2025-01-23 12:55:06,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:55:06,783 INFO L85 PathProgramCache]: Analyzing trace with hash -768778304, now seen corresponding path program 2 times [2025-01-23 12:55:06,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:55:06,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667510758] [2025-01-23 12:55:06,783 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 12:55:06,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:55:06,794 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 2 equivalence classes. [2025-01-23 12:55:06,894 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-01-23 12:55:06,894 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 12:55:06,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:55:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:11,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:55:11,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667510758] [2025-01-23 12:55:11,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667510758] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 12:55:11,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307059551] [2025-01-23 12:55:11,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 12:55:11,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:55:11,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:55:11,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 12:55:11,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 12:55:11,759 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 2 equivalence classes. [2025-01-23 12:55:11,780 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-01-23 12:55:11,780 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 12:55:11,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:55:11,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 49 conjuncts are in the unsatisfiable core [2025-01-23 12:55:11,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 12:55:11,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-23 12:55:13,450 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 12:55:13,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 238 treesize of output 130 [2025-01-23 12:55:13,841 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:55:13,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 12:56:07,147 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 2974 treesize of output 2658 [2025-01-23 12:56:17,448 WARN L286 SmtUtils]: Spent 10.23s on a formula simplification that was a NOOP. DAG size: 1341 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-01-23 12:56:17,451 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-23 12:56:17,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 4116 treesize of output 5722 [2025-01-23 13:00:06,355 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-23 13:00:06,356 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-23 13:00:06,357 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 [2025-01-23 13:00:06,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-23 13:00:06,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:06,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-23 13:00:06,564 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.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) ... 79 more [2025-01-23 13:00:06,569 INFO L158 Benchmark]: Toolchain (without parser) took 303091.44ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 90.7MB in the beginning and 615.1MB in the end (delta: -524.3MB). Peak memory consumption was 960.9MB. Max. memory is 16.1GB. [2025-01-23 13:00:06,569 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 13:00:06,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.61ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 77.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-23 13:00:06,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.45ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 13:00:06,570 INFO L158 Benchmark]: Boogie Preprocessor took 13.50ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 74.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 13:00:06,570 INFO L158 Benchmark]: RCFGBuilder took 425.08ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 84.5MB in the end (delta: -10.0MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2025-01-23 13:00:06,570 INFO L158 Benchmark]: TraceAbstraction took 302414.91ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 84.0MB in the beginning and 615.1MB in the end (delta: -531.1MB). Peak memory consumption was 956.3MB. Max. memory is 16.1GB. [2025-01-23 13:00:06,571 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.61ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 77.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.45ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.50ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 74.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 425.08ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 84.5MB in the end (delta: -10.0MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * TraceAbstraction took 302414.91ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 84.0MB in the beginning and 615.1MB in the end (delta: -531.1MB). Peak memory consumption was 956.3MB. 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-more-min-array-hom.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 0224e82797c7b26c7800eaf85be5e5678e7961d21aa4e2312eda2860d261b33a --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 13:00:08,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 13:00:08,483 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-01-23 13:00:08,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 13:00:08,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 13:00:08,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 13:00:08,511 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 13:00:08,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 13:00:08,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 13:00:08,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 13:00:08,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 13:00:08,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 13:00:08,512 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 13:00:08,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 13:00:08,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 13:00:08,513 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 13:00:08,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 13:00:08,514 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 13:00:08,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 13:00:08,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 13:00:08,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 13:00:08,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 13:00:08,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 13:00:08,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 13:00:08,516 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 13:00:08,516 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 -> 0224e82797c7b26c7800eaf85be5e5678e7961d21aa4e2312eda2860d261b33a 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 -> NONE [2025-01-23 13:00:08,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 13:00:08,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 13:00:08,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 13:00:08,740 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 13:00:08,740 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 13:00:08,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2025-01-23 13:00:09,877 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/c55f98da4/1484ca98ec0647e6972ac6c1d266d384/FLAG55a23c5f8 [2025-01-23 13:00:10,097 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 13:00:10,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-min-array-hom.wvr.c [2025-01-23 13:00:10,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/c55f98da4/1484ca98ec0647e6972ac6c1d266d384/FLAG55a23c5f8 [2025-01-23 13:00:10,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/c55f98da4/1484ca98ec0647e6972ac6c1d266d384 [2025-01-23 13:00:10,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 13:00:10,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 13:00:10,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 13:00:10,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 13:00:10,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 13:00:10,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4588e041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10, skipping insertion in model container [2025-01-23 13:00:10,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 13:00:10,273 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-more-min-array-hom.wvr.c[2625,2638] [2025-01-23 13:00:10,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 13:00:10,292 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 13:00:10,351 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-more-min-array-hom.wvr.c[2625,2638] [2025-01-23 13:00:10,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 13:00:10,368 INFO L204 MainTranslator]: Completed translation [2025-01-23 13:00:10,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10 WrapperNode [2025-01-23 13:00:10,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 13:00:10,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 13:00:10,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 13:00:10,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 13:00:10,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,402 INFO L138 Inliner]: procedures = 25, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 81 [2025-01-23 13:00:10,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 13:00:10,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 13:00:10,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 13:00:10,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 13:00:10,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,425 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,426 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 13:00:10,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 13:00:10,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 13:00:10,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 13:00:10,441 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (1/1) ... [2025-01-23 13:00:10,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 13:00:10,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:10,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 13:00:10,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 13:00:10,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 13:00:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 13:00:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 13:00:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 13:00:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 13:00:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-23 13:00:10,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-23 13:00:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-01-23 13:00:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 13:00:10,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 13:00:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 13:00:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-01-23 13:00:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 13:00:10,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 13:00:10,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-01-23 13:00:10,499 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 13:00:10,566 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 13:00:10,567 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 13:00:10,792 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 13:00:10,792 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 13:00:10,934 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 13:00:10,934 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 13:00:10,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 01:00:10 BoogieIcfgContainer [2025-01-23 13:00:10,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 13:00:10,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 13:00:10,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 13:00:10,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 13:00:10,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 01:00:10" (1/3) ... [2025-01-23 13:00:10,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1926ec6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 01:00:10, skipping insertion in model container [2025-01-23 13:00:10,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:00:10" (2/3) ... [2025-01-23 13:00:10,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1926ec6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 01:00:10, skipping insertion in model container [2025-01-23 13:00:10,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 01:00:10" (3/3) ... [2025-01-23 13:00:10,943 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array-hom.wvr.c [2025-01-23 13:00:10,952 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 13:00:10,953 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-min-array-hom.wvr.c that has 4 procedures, 30 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-23 13:00:10,953 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 13:00:11,000 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-23 13:00:11,035 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 13:00:11,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 13:00:11,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:11,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 13:00:11,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 13:00:11,115 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 13:00:11,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 13:00:11,133 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;@78d58e8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 13:00:11,133 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-23 13:00:11,414 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)] === [2025-01-23 13:00:11,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:00:11,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1621778294, now seen corresponding path program 1 times [2025-01-23 13:00:11,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:00:11,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130441956] [2025-01-23 13:00:11,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 13:00:11,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:11,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:11,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:00:11,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 13:00:11,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-23 13:00:11,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-23 13:00:11,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 13:00:11,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:00:11,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-23 13:00:11,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:00:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 13:00:11,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 13:00:11,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:00:11,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130441956] [2025-01-23 13:00:11,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130441956] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 13:00:11,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 13:00:11,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 13:00:11,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131576082] [2025-01-23 13:00:11,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 13:00:11,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 13:00:11,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:00:11,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 13:00:11,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 13:00:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:11,571 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:00:11,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:00:11,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:11,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:11,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 13:00:11,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:11,836 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)] === [2025-01-23 13:00:11,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:00:11,837 INFO L85 PathProgramCache]: Analyzing trace with hash 204914706, now seen corresponding path program 1 times [2025-01-23 13:00:11,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:00:11,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329610378] [2025-01-23 13:00:11,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 13:00:11,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:11,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:11,841 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:00:11,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 13:00:11,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-23 13:00:11,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 13:00:11,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 13:00:11,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:00:11,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-23 13:00:11,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:00:12,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 13:00:12,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:00:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 13:00:12,159 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:00:12,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329610378] [2025-01-23 13:00:12,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329610378] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:00:12,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:00:12,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-01-23 13:00:12,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409627466] [2025-01-23 13:00:12,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:00:12,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-23 13:00:12,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:00:12,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-23 13:00:12,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-01-23 13:00:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:12,163 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:00:12,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:00:12,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:12,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:12,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:12,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:12,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-23 13:00:12,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:12,514 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)] === [2025-01-23 13:00:12,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:00:12,515 INFO L85 PathProgramCache]: Analyzing trace with hash -768183562, now seen corresponding path program 2 times [2025-01-23 13:00:12,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:00:12,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364702025] [2025-01-23 13:00:12,515 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 13:00:12,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:12,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:12,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:00:12,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 13:00:12,557 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-23 13:00:12,571 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 30 statements. [2025-01-23 13:00:12,571 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 13:00:12,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:00:12,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-23 13:00:12,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:00:12,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 13:00:12,758 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-23 13:00:12,758 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:00:12,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364702025] [2025-01-23 13:00:12,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364702025] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 13:00:12,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 13:00:12,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-23 13:00:12,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737186866] [2025-01-23 13:00:12,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 13:00:12,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-23 13:00:12,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:00:12,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-23 13:00:12,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-01-23 13:00:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:12,759 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:00:12,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 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) [2025-01-23 13:00:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:12,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:00:12,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-23 13:00:13,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:13,104 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)] === [2025-01-23 13:00:13,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:00:13,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1422999840, now seen corresponding path program 1 times [2025-01-23 13:00:13,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:00:13,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551510816] [2025-01-23 13:00:13,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 13:00:13,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:13,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:13,107 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:00:13,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 13:00:13,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-23 13:00:13,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-23 13:00:13,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 13:00:13,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:00:13,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-23 13:00:13,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:00:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 13:00:13,414 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:00:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 13:00:13,744 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:00:13,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551510816] [2025-01-23 13:00:13,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551510816] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:00:13,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:00:13,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 17 [2025-01-23 13:00:13,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723279059] [2025-01-23 13:00:13,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:00:13,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-23 13:00:13,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:00:13,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-23 13:00:13,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2025-01-23 13:00:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:13,745 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:00:13,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:00:13,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:13,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:13,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:00:13,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:14,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:00:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:00:14,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-23 13:00:14,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:14,449 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)] === [2025-01-23 13:00:14,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:00:14,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1834116576, now seen corresponding path program 2 times [2025-01-23 13:00:14,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:00:14,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985371166] [2025-01-23 13:00:14,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 13:00:14,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:14,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:14,452 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:00:14,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-23 13:00:14,490 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-01-23 13:00:14,517 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-01-23 13:00:14,517 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 13:00:14,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:00:14,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-23 13:00:14,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:00:14,743 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 13:00:14,743 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:00:15,108 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 13:00:15,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:00:15,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985371166] [2025-01-23 13:00:15,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985371166] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:00:15,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:00:15,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2025-01-23 13:00:15,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239948874] [2025-01-23 13:00:15,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:00:15,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-23 13:00:15,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:00:15,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-23 13:00:15,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2025-01-23 13:00:15,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:15,109 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:00:15,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.761904761904762) internal successors, (79), 20 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:00:15,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:15,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:15,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:00:15,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:00:15,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:00:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:00:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:00:15,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-23 13:00:15,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:15,774 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)] === [2025-01-23 13:00:15,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:00:15,774 INFO L85 PathProgramCache]: Analyzing trace with hash -704041370, now seen corresponding path program 3 times [2025-01-23 13:00:15,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:00:15,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012981972] [2025-01-23 13:00:15,775 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 13:00:15,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:15,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:15,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:00:15,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-23 13:00:15,829 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 64 statements into 5 equivalence classes. [2025-01-23 13:00:15,936 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 64 of 64 statements. [2025-01-23 13:00:15,936 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-23 13:00:15,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:00:15,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-23 13:00:15,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:00:16,679 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-23 13:00:16,679 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:00:17,982 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-23 13:00:17,982 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:00:17,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012981972] [2025-01-23 13:00:17,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012981972] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:00:17,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:00:17,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 32 [2025-01-23 13:00:17,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628292376] [2025-01-23 13:00:17,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:00:17,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-23 13:00:17,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:00:17,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-23 13:00:17,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=756, Unknown=0, NotChecked=0, Total=992 [2025-01-23 13:00:17,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:17,984 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:00:17,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.5625) internal successors, (114), 32 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:00:17,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:17,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:17,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:00:17,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:00:17,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:00:17,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:23,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:00:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:00:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:00:23,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:00:23,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-23 13:00:24,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:24,092 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)] === [2025-01-23 13:00:24,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:00:24,093 INFO L85 PathProgramCache]: Analyzing trace with hash -43611504, now seen corresponding path program 4 times [2025-01-23 13:00:24,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:00:24,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492964453] [2025-01-23 13:00:24,094 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 13:00:24,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:00:24,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:00:24,096 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:00:24,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-23 13:00:24,162 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 109 statements into 2 equivalence classes. [2025-01-23 13:00:24,210 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 108 of 109 statements. [2025-01-23 13:00:24,210 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-23 13:00:24,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:00:24,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-23 13:00:24,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:00:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 333 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-23 13:00:25,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:00:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 333 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-23 13:00:27,801 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:00:27,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492964453] [2025-01-23 13:00:27,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492964453] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:00:27,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:00:27,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2025-01-23 13:00:27,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934906333] [2025-01-23 13:00:27,801 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:00:27,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2025-01-23 13:00:27,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:00:27,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2025-01-23 13:00:27,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1828, Unknown=0, NotChecked=0, Total=2450 [2025-01-23 13:00:27,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:00:27,805 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:00:27,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.96) internal successors, (198), 50 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:00:27,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:00:27,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:00:27,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:00:27,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:00:27,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:00:27,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:00:27,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:05,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:05,193 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 [2025-01-23 13:01:05,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:05,384 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)] === [2025-01-23 13:01:05,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:01:05,385 INFO L85 PathProgramCache]: Analyzing trace with hash -286738864, now seen corresponding path program 5 times [2025-01-23 13:01:05,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:01:05,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531389028] [2025-01-23 13:01:05,386 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 13:01:05,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:05,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:01:05,387 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:01:05,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-23 13:01:05,452 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 199 statements into 20 equivalence classes. [2025-01-23 13:01:16,535 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) and asserted 199 of 199 statements. [2025-01-23 13:01:16,535 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2025-01-23 13:01:16,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:01:16,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-23 13:01:16,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:01:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 715 proven. 162 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2025-01-23 13:01:17,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:01:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 715 proven. 162 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2025-01-23 13:01:17,707 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:01:17,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531389028] [2025-01-23 13:01:17,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531389028] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:01:17,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:01:17,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2025-01-23 13:01:17,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54388591] [2025-01-23 13:01:17,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:01:17,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-23 13:01:17,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:01:17,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-23 13:01:17,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2025-01-23 13:01:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:17,709 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:01:17,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.03125) internal successors, (161), 31 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:01:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:17,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:18,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:18,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:18,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:18,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-23 13:01:18,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:18,485 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)] === [2025-01-23 13:01:18,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:01:18,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1221702604, now seen corresponding path program 6 times [2025-01-23 13:01:18,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:01:18,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434170387] [2025-01-23 13:01:18,487 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 13:01:18,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:18,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:01:18,490 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:01:18,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-23 13:01:18,550 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 200 statements into 20 equivalence classes. [2025-01-23 13:01:21,399 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 137 of 200 statements. [2025-01-23 13:01:21,399 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-01-23 13:01:21,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:01:21,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-23 13:01:21,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:01:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1586 backedges. 780 proven. 245 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2025-01-23 13:01:21,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:01:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1586 backedges. 780 proven. 245 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2025-01-23 13:01:22,896 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:01:22,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434170387] [2025-01-23 13:01:22,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434170387] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:01:22,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:01:22,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2025-01-23 13:01:22,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284025043] [2025-01-23 13:01:22,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:01:22,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-01-23 13:01:22,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:01:22,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-01-23 13:01:22,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1147, Unknown=0, NotChecked=0, Total=1332 [2025-01-23 13:01:22,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:22,898 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:01:22,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.054054054054054) internal successors, (187), 36 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:24,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-23 13:01:24,229 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 [2025-01-23 13:01:24,229 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)] === [2025-01-23 13:01:24,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:01:24,230 INFO L85 PathProgramCache]: Analyzing trace with hash -992796748, now seen corresponding path program 7 times [2025-01-23 13:01:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:01:24,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2125009919] [2025-01-23 13:01:24,230 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-23 13:01:24,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:24,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:01:24,233 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:01:24,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-23 13:01:24,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 202 statements into 1 equivalence classes. [2025-01-23 13:01:24,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 202 of 202 statements. [2025-01-23 13:01:24,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 13:01:24,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:01:24,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-23 13:01:24,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:01:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1603 backedges. 820 proven. 378 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2025-01-23 13:01:25,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:01:26,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1603 backedges. 820 proven. 378 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2025-01-23 13:01:26,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:01:26,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125009919] [2025-01-23 13:01:26,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125009919] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:01:26,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:01:26,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2025-01-23 13:01:26,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483335703] [2025-01-23 13:01:26,368 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:01:26,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2025-01-23 13:01:26,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:01:26,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2025-01-23 13:01:26,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2025-01-23 13:01:26,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:26,369 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:01:26,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 5.0227272727272725) internal successors, (221), 43 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:01:26,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:26,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:26,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:26,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:26,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:26,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:26,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:26,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:26,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:26,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 13:01:27,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-23 13:01:27,438 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 [2025-01-23 13:01:27,439 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)] === [2025-01-23 13:01:27,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:01:27,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1634660528, now seen corresponding path program 8 times [2025-01-23 13:01:27,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:01:27,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636882527] [2025-01-23 13:01:27,440 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 13:01:27,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:27,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:01:27,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:01:27,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-23 13:01:27,497 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 203 statements into 2 equivalence classes. [2025-01-23 13:01:27,585 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 203 of 203 statements. [2025-01-23 13:01:27,585 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 13:01:27,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:01:27,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-01-23 13:01:27,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:01:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 819 proven. 470 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2025-01-23 13:01:28,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:01:29,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 819 proven. 470 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2025-01-23 13:01:29,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:01:29,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636882527] [2025-01-23 13:01:29,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636882527] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:01:29,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:01:29,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2025-01-23 13:01:29,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333551242] [2025-01-23 13:01:29,973 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:01:29,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-01-23 13:01:29,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:01:29,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-01-23 13:01:29,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=1865, Unknown=0, NotChecked=0, Total=2256 [2025-01-23 13:01:29,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:29,974 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:01:29,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.020833333333333) internal successors, (241), 47 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:01:29,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-23 13:01:29,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 13:01:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 13:01:31,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-23 13:01:31,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:31,200 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)] === [2025-01-23 13:01:31,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:01:31,200 INFO L85 PathProgramCache]: Analyzing trace with hash -57601228, now seen corresponding path program 9 times [2025-01-23 13:01:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:01:31,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79001744] [2025-01-23 13:01:31,201 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 13:01:31,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:31,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:01:31,203 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:01:31,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-23 13:01:31,272 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 204 statements into 20 equivalence classes. [2025-01-23 13:01:44,197 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) and asserted 204 of 204 statements. [2025-01-23 13:01:44,197 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2025-01-23 13:01:44,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:01:44,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-01-23 13:01:44,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:01:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 800 proven. 572 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2025-01-23 13:01:45,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:01:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 800 proven. 572 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2025-01-23 13:01:46,683 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:01:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79001744] [2025-01-23 13:01:46,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79001744] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:01:46,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:01:46,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2025-01-23 13:01:46,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735024887] [2025-01-23 13:01:46,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:01:46,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2025-01-23 13:01:46,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:01:46,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2025-01-23 13:01:46,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2025-01-23 13:01:46,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:46,685 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:01:46,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.019230769230769) internal successors, (261), 51 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 13:01:46,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 13:01:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 13:01:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-23 13:01:47,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-01-23 13:01:47,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:47,863 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)] === [2025-01-23 13:01:47,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:01:47,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1586596816, now seen corresponding path program 10 times [2025-01-23 13:01:47,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:01:47,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496971484] [2025-01-23 13:01:47,864 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 13:01:47,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:01:47,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:01:47,866 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:01:47,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-23 13:01:47,936 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 205 statements into 2 equivalence classes. [2025-01-23 13:01:48,014 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 204 of 205 statements. [2025-01-23 13:01:48,014 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-23 13:01:48,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 13:01:48,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-01-23 13:01:48,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 13:01:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1636 backedges. 0 proven. 1558 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 13:01:50,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 13:01:57,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1636 backedges. 0 proven. 1558 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-01-23 13:01:57,210 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-23 13:01:57,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496971484] [2025-01-23 13:01:57,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496971484] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 13:01:57,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-23 13:01:57,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 90 [2025-01-23 13:01:57,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017973296] [2025-01-23 13:01:57,211 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-23 13:01:57,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2025-01-23 13:01:57,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-23 13:01:57,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2025-01-23 13:01:57,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2002, Invalid=6008, Unknown=0, NotChecked=0, Total=8010 [2025-01-23 13:01:57,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:01:57,217 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 13:01:57,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 4.2) internal successors, (378), 90 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-23 13:01:57,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 13:02:15,195 WARN L286 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 180 DAG size of output: 176 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-01-23 13:06:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 13:06:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-23 13:06:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2025-01-23 13:06:34,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-23 13:06:34,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:06:34,740 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)] === [2025-01-23 13:06:34,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 13:06:34,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1384026960, now seen corresponding path program 11 times [2025-01-23 13:06:34,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-23 13:06:34,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259639096] [2025-01-23 13:06:34,741 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 13:06:34,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 13:06:34,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 13:06:34,744 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 13:06:34,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-23 13:06:34,826 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 385 statements into 40 equivalence classes. Killed by 15