./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1f73d82f 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 ../sv-benchmarks/c/weaver/chl-nzb-file-trans.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 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 11:52:15,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 11:52:15,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-21 11:52:15,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 11:52:15,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 11:52:15,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 11:52:15,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 11:52:15,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 11:52:15,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 11:52:15,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 11:52:15,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 11:52:15,223 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 11:52:15,223 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 11:52:15,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 11:52:15,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 11:52:15,223 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 11:52:15,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 11:52:15,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 11:52:15,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 11:52:15,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 11:52:15,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 11:52:15,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 11:52:15,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 11:52:15,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 11:52:15,224 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 11:52:15,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 11:52:15,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 11:52:15,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 11:52:15,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 11:52:15,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 11:52:15,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 11:52:15,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 11:52:15,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 11:52:15,225 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 11:52:15,226 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 11:52:15,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 11:52:15,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 11:52:15,226 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 11:52:15,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 11:52:15,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 11:52:15,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 11:52:15,226 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 11:52:15,227 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 11:52:15,227 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 -> 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b [2024-11-21 11:52:15,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 11:52:15,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 11:52:15,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 11:52:15,494 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 11:52:15,495 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 11:52:15,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2024-11-21 11:52:16,834 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/28acd146d/36c14bdac2314af69e28fa01dd3b209b/FLAG327f53b06 [2024-11-21 11:52:17,100 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 11:52:17,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2024-11-21 11:52:17,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/28acd146d/36c14bdac2314af69e28fa01dd3b209b/FLAG327f53b06 [2024-11-21 11:52:17,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/28acd146d/36c14bdac2314af69e28fa01dd3b209b [2024-11-21 11:52:17,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 11:52:17,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 11:52:17,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 11:52:17,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 11:52:17,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 11:52:17,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47341f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17, skipping insertion in model container [2024-11-21 11:52:17,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 11:52:17,617 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6489,6502] [2024-11-21 11:52:17,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 11:52:17,633 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 11:52:17,689 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6489,6502] [2024-11-21 11:52:17,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 11:52:17,720 INFO L204 MainTranslator]: Completed translation [2024-11-21 11:52:17,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17 WrapperNode [2024-11-21 11:52:17,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 11:52:17,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 11:52:17,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 11:52:17,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 11:52:17,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,797 INFO L138 Inliner]: procedures = 25, calls = 61, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 597 [2024-11-21 11:52:17,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 11:52:17,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 11:52:17,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 11:52:17,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 11:52:17,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,833 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,855 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 11:52:17,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 11:52:17,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 11:52:17,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 11:52:17,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (1/1) ... [2024-11-21 11:52:17,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 11:52:17,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 11:52:17,898 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) [2024-11-21 11:52:17,901 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 [2024-11-21 11:52:17,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 11:52:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-21 11:52:17,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-21 11:52:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-21 11:52:17,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-21 11:52:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-21 11:52:17,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-21 11:52:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 11:52:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-21 11:52:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-21 11:52:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 11:52:17,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 11:52:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-21 11:52:17,920 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 11:52:18,035 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 11:52:18,036 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 11:52:18,811 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 11:52:18,811 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 11:52:19,581 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 11:52:19,582 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-21 11:52:19,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:52:19 BoogieIcfgContainer [2024-11-21 11:52:19,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 11:52:19,586 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 11:52:19,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 11:52:19,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 11:52:19,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:52:17" (1/3) ... [2024-11-21 11:52:19,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ab0449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:52:19, skipping insertion in model container [2024-11-21 11:52:19,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:52:17" (2/3) ... [2024-11-21 11:52:19,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ab0449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:52:19, skipping insertion in model container [2024-11-21 11:52:19,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:52:19" (3/3) ... [2024-11-21 11:52:19,593 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2024-11-21 11:52:19,607 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 11:52:19,610 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-trans.wvr.c that has 4 procedures, 38 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-21 11:52:19,611 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 11:52:19,727 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-21 11:52:19,769 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 11:52:19,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 11:52:19,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 11:52:19,772 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) [2024-11-21 11:52:19,774 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 [2024-11-21 11:52:19,901 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 11:52:19,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 11:52:19,922 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;@418b24f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 11:52:19,922 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-21 11:52:20,192 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)] === [2024-11-21 11:52:20,193 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:20,193 INFO L139 ounterexampleChecker]: Examining path program with hash -520868047, occurence #1 [2024-11-21 11:52:20,193 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 11:52:20,193 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:20,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:20,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1646438064, now seen corresponding path program 1 times [2024-11-21 11:52:20,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:20,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146879471] [2024-11-21 11:52:20,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:20,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 11:52:20,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:20,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146879471] [2024-11-21 11:52:20,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146879471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 11:52:20,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 11:52:20,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 11:52:20,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8200712] [2024-11-21 11:52:20,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 11:52:20,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 11:52:20,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:52:20,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 11:52:20,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 11:52:20,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:20,799 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:52:20,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 11:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:20,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 11:52:20,933 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)] === [2024-11-21 11:52:20,933 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:20,933 INFO L139 ounterexampleChecker]: Examining path program with hash -206173323, occurence #1 [2024-11-21 11:52:20,934 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 11:52:20,934 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:20,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1209909283, now seen corresponding path program 1 times [2024-11-21 11:52:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:20,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265037378] [2024-11-21 11:52:20,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-21 11:52:21,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:21,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265037378] [2024-11-21 11:52:21,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265037378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 11:52:21,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 11:52:21,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 11:52:21,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552425260] [2024-11-21 11:52:21,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 11:52:21,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 11:52:21,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:52:21,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 11:52:21,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 11:52:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:21,259 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:52:21,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 11:52:21,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:21,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:21,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 11:52:21,383 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)] === [2024-11-21 11:52:21,383 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:21,383 INFO L139 ounterexampleChecker]: Examining path program with hash -1949183925, occurence #1 [2024-11-21 11:52:21,383 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 11:52:21,384 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:21,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:21,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1082571654, now seen corresponding path program 1 times [2024-11-21 11:52:21,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:21,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377585524] [2024-11-21 11:52:21,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:21,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-21 11:52:21,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:21,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377585524] [2024-11-21 11:52:21,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377585524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 11:52:21,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 11:52:21,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 11:52:21,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779236476] [2024-11-21 11:52:21,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 11:52:21,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 11:52:21,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:52:21,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 11:52:21,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 11:52:21,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:21,634 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:52:21,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 11:52:21,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:21,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:21,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:21,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 11:52:21,882 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)] === [2024-11-21 11:52:21,882 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:21,883 INFO L139 ounterexampleChecker]: Examining path program with hash -529005270, occurence #1 [2024-11-21 11:52:21,883 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 11:52:21,883 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:21,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:21,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1677272368, now seen corresponding path program 1 times [2024-11-21 11:52:21,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:21,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905033745] [2024-11-21 11:52:21,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:21,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:22,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 11:52:22,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:22,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905033745] [2024-11-21 11:52:22,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905033745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 11:52:22,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209514088] [2024-11-21 11:52:22,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:22,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 11:52:22,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 11:52:22,097 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) [2024-11-21 11:52:22,099 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 [2024-11-21 11:52:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:22,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 11:52:22,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 11:52:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 11:52:22,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 11:52:22,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 11:52:22,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209514088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 11:52:22,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 11:52:22,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-21 11:52:22,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632391657] [2024-11-21 11:52:22,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 11:52:22,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-21 11:52:22,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:52:22,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-21 11:52:22,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-21 11:52:22,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:22,400 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:52:22,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 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) [2024-11-21 11:52:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:22,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 11:52:22,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 11:52:22,808 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)] === [2024-11-21 11:52:22,808 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:22,809 INFO L139 ounterexampleChecker]: Examining path program with hash -529005270, occurence #2 [2024-11-21 11:52:22,809 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 11:52:22,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-21 11:52:22,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:22,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-21 11:52:22,810 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:22,810 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-21 11:52:22,828 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-21 11:52:22,829 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-21 11:52:22,829 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-21 11:52:22,829 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-21 11:52:22,829 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-21 11:52:22,829 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-21 11:52:22,829 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-21 11:52:22,829 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-21 11:52:22,829 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:22,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-21 11:52:22,829 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 11:52:22,829 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 11:52:22,829 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:22,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:22,830 INFO L85 PathProgramCache]: Analyzing trace with hash -301525999, now seen corresponding path program 2 times [2024-11-21 11:52:22,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:22,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682448262] [2024-11-21 11:52:22,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:23,158 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-21 11:52:23,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682448262] [2024-11-21 11:52:23,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682448262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 11:52:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522699721] [2024-11-21 11:52:23,160 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 11:52:23,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 11:52:23,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 11:52:23,162 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) [2024-11-21 11:52:23,164 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 [2024-11-21 11:52:23,375 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-21 11:52:23,375 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 11:52:23,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-21 11:52:23,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 11:52:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-21 11:52:23,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 11:52:23,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522699721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 11:52:23,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 11:52:23,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-21 11:52:23,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616368493] [2024-11-21 11:52:23,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 11:52:23,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 11:52:23,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:52:23,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 11:52:23,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-21 11:52:23,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:23,563 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:52:23,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 11:52:23,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:23,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:23,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:23,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:23,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:23,686 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 [2024-11-21 11:52:23,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 11:52:23,873 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)] === [2024-11-21 11:52:23,873 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:23,873 INFO L139 ounterexampleChecker]: Examining path program with hash -1916365027, occurence #1 [2024-11-21 11:52:23,874 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 11:52:23,874 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:23,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:23,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1016655119, now seen corresponding path program 1 times [2024-11-21 11:52:23,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:23,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703838033] [2024-11-21 11:52:23,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:23,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:24,205 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-21 11:52:24,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:24,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703838033] [2024-11-21 11:52:24,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703838033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 11:52:24,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728919187] [2024-11-21 11:52:24,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:24,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 11:52:24,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 11:52:24,209 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) [2024-11-21 11:52:24,210 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 [2024-11-21 11:52:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:24,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-21 11:52:24,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 11:52:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-21 11:52:24,537 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 11:52:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-21 11:52:24,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728919187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 11:52:24,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 11:52:24,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-11-21 11:52:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379540795] [2024-11-21 11:52:24,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 11:52:24,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-21 11:52:24,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:52:24,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-21 11:52:24,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2024-11-21 11:52:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:24,625 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:52:24,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 11:52:24,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:24,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:24,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:24,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 11:52:24,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-21 11:52:25,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 11:52:25,019 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)] === [2024-11-21 11:52:25,019 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:25,020 INFO L139 ounterexampleChecker]: Examining path program with hash -1916365027, occurence #2 [2024-11-21 11:52:25,020 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 11:52:25,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-21 11:52:25,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:25,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-21 11:52:25,020 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:25,020 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-21 11:52:25,020 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-21 11:52:25,021 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-21 11:52:25,021 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-21 11:52:25,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-21 11:52:25,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-11-21 11:52:25,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-21 11:52:25,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-21 11:52:25,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-21 11:52:25,021 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 11:52:25,021 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-21 11:52:25,022 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 11:52:25,022 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 11:52:25,022 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:25,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:25,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2058267566, now seen corresponding path program 2 times [2024-11-21 11:52:25,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:25,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752194661] [2024-11-21 11:52:25,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:25,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:25,350 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 11:52:25,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:25,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752194661] [2024-11-21 11:52:25,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752194661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 11:52:25,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 11:52:25,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 11:52:25,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950398293] [2024-11-21 11:52:25,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 11:52:25,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 11:52:25,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:52:25,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 11:52:25,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 11:52:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:25,352 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:52:25,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 11:52:25,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:25,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:25,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-21 11:52:25,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 11:52:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:25,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 11:52:25,474 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)] === [2024-11-21 11:52:25,476 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:25,476 INFO L139 ounterexampleChecker]: Examining path program with hash 1866870613, occurence #1 [2024-11-21 11:52:25,476 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 11:52:25,476 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:25,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1334543927, now seen corresponding path program 1 times [2024-11-21 11:52:25,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:25,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104212581] [2024-11-21 11:52:25,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:25,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:25,793 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 11:52:25,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:25,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104212581] [2024-11-21 11:52:25,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104212581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 11:52:25,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 11:52:25,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 11:52:25,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375294035] [2024-11-21 11:52:25,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 11:52:25,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 11:52:25,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 11:52:25,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 11:52:25,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 11:52:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:25,794 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 11:52:25,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-11-21 11:52:25,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:25,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:25,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-21 11:52:25,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:25,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 11:52:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 11:52:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 11:52:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 11:52:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 11:52:25,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 11:52:25,911 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)] === [2024-11-21 11:52:25,912 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 11:52:25,912 INFO L139 ounterexampleChecker]: Examining path program with hash -327357039, occurence #1 [2024-11-21 11:52:25,912 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 11:52:25,912 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 11:52:25,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 11:52:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1755830427, now seen corresponding path program 1 times [2024-11-21 11:52:25,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 11:52:25,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165394546] [2024-11-21 11:52:25,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 11:52:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 11:52:38,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 11:52:38,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165394546] [2024-11-21 11:52:38,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165394546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 11:52:38,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527663947] [2024-11-21 11:52:38,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 11:52:38,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 11:52:38,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 11:52:38,901 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) [2024-11-21 11:52:38,902 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 [2024-11-21 11:52:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 11:52:39,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-11-21 11:52:39,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 11:52:39,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 43 treesize of output 30 [2024-11-21 11:52:39,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2024-11-21 11:52:39,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2024-11-21 11:52:39,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 62 treesize of output 46 [2024-11-21 11:52:39,321 INFO L349 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2024-11-21 11:52:39,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 63 [2024-11-21 11:52:39,354 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-21 11:52:39,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 40 [2024-11-21 11:52:39,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 114 treesize of output 90 [2024-11-21 11:52:39,588 INFO L349 Elim1Store]: treesize reduction 127, result has 18.1 percent of original size [2024-11-21 11:52:39,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 90 treesize of output 117 [2024-11-21 11:52:39,775 INFO L349 Elim1Store]: treesize reduction 76, result has 39.7 percent of original size [2024-11-21 11:52:39,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 73 treesize of output 101 [2024-11-21 11:52:40,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 292 treesize of output 238 [2024-11-21 11:52:42,390 INFO L349 Elim1Store]: treesize reduction 506, result has 52.8 percent of original size [2024-11-21 11:52:42,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 14 new quantified variables, introduced 90 case distinctions, treesize of input 238 treesize of output 756 [2024-11-21 12:04:05,223 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 [2024-11-21 12:04:05,223 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") [2024-11-21 12:04:05,224 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-21 12:04:05,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 12:04:05,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:05,437 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 [2024-11-21 12:04:05,438 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.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:584) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:274) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:194) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$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.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.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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) 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:318) 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) ... 67 more [2024-11-21 12:04:05,446 INFO L158 Benchmark]: Toolchain (without parser) took 708044.65ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 95.0MB in the beginning and 680.5MB in the end (delta: -585.5MB). Peak memory consumption was 756.7MB. Max. memory is 16.1GB. [2024-11-21 12:04:05,446 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 47.3MB in the end (delta: 195.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 12:04:05,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.37ms. Allocated memory is still 117.4MB. Free memory was 94.9MB in the beginning and 79.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-21 12:04:05,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.63ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 75.8MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 12:04:05,446 INFO L158 Benchmark]: Boogie Preprocessor took 59.36ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 72.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 12:04:05,447 INFO L158 Benchmark]: RCFGBuilder took 1724.77ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 53.1MB in the end (delta: 19.6MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-21 12:04:05,447 INFO L158 Benchmark]: TraceAbstraction took 705859.07ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 52.0MB in the beginning and 680.5MB in the end (delta: -628.5MB). Peak memory consumption was 716.0MB. Max. memory is 16.1GB. [2024-11-21 12:04:05,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 47.3MB in the end (delta: 195.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.37ms. Allocated memory is still 117.4MB. Free memory was 94.9MB in the beginning and 79.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.63ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 75.8MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.36ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 72.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1724.77ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 53.1MB in the end (delta: 19.6MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * TraceAbstraction took 705859.07ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 52.0MB in the beginning and 680.5MB in the end (delta: -628.5MB). Peak memory consumption was 716.0MB. 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 ../sv-benchmarks/c/weaver/chl-nzb-file-trans.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 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 12:04:07,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 12:04:07,607 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-11-21 12:04:07,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 12:04:07,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 12:04:07,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 12:04:07,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 12:04:07,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 12:04:07,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 12:04:07,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 12:04:07,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 12:04:07,639 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 12:04:07,639 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 12:04:07,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 12:04:07,640 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 12:04:07,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 12:04:07,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 12:04:07,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 12:04:07,642 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-21 12:04:07,642 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 12:04:07,642 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-21 12:04:07,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 12:04:07,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 12:04:07,642 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 12:04:07,642 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 12:04:07,642 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 -> 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b [2024-11-21 12:04:07,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 12:04:07,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 12:04:07,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 12:04:07,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 12:04:07,954 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 12:04:07,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2024-11-21 12:04:09,276 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/317d76eed/81490a1ec25f4042aa4a1b8fa1013b05/FLAG51df8692a [2024-11-21 12:04:09,492 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 12:04:09,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2024-11-21 12:04:09,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/317d76eed/81490a1ec25f4042aa4a1b8fa1013b05/FLAG51df8692a [2024-11-21 12:04:09,520 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/317d76eed/81490a1ec25f4042aa4a1b8fa1013b05 [2024-11-21 12:04:09,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 12:04:09,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 12:04:09,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 12:04:09,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 12:04:09,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 12:04:09,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ece095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09, skipping insertion in model container [2024-11-21 12:04:09,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 12:04:09,766 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6489,6502] [2024-11-21 12:04:09,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 12:04:09,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 12:04:09,852 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6489,6502] [2024-11-21 12:04:09,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 12:04:09,884 INFO L204 MainTranslator]: Completed translation [2024-11-21 12:04:09,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09 WrapperNode [2024-11-21 12:04:09,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 12:04:09,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 12:04:09,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 12:04:09,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 12:04:09,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,947 INFO L138 Inliner]: procedures = 25, calls = 61, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 579 [2024-11-21 12:04:09,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 12:04:09,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 12:04:09,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 12:04:09,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 12:04:09,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,991 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:09,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:10,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:10,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:10,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 12:04:10,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 12:04:10,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 12:04:10,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 12:04:10,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (1/1) ... [2024-11-21 12:04:10,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 12:04:10,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:10,047 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) [2024-11-21 12:04:10,051 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 [2024-11-21 12:04:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 12:04:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-21 12:04:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-21 12:04:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-21 12:04:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-21 12:04:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-21 12:04:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-21 12:04:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-21 12:04:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-21 12:04:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-21 12:04:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 12:04:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 12:04:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-21 12:04:10,075 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 12:04:10,196 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 12:04:10,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 12:04:11,086 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 12:04:11,086 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 12:04:11,933 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 12:04:11,934 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-21 12:04:11,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:04:11 BoogieIcfgContainer [2024-11-21 12:04:11,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 12:04:11,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 12:04:11,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 12:04:11,941 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 12:04:11,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:04:09" (1/3) ... [2024-11-21 12:04:11,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788038df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:04:11, skipping insertion in model container [2024-11-21 12:04:11,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:09" (2/3) ... [2024-11-21 12:04:11,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788038df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:04:11, skipping insertion in model container [2024-11-21 12:04:11,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:04:11" (3/3) ... [2024-11-21 12:04:11,944 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2024-11-21 12:04:11,957 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 12:04:11,959 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-trans.wvr.c that has 4 procedures, 38 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-21 12:04:11,959 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 12:04:12,114 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-21 12:04:12,159 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 12:04:12,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 12:04:12,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:12,162 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) [2024-11-21 12:04:12,164 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 [2024-11-21 12:04:12,285 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 12:04:12,300 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 12:04:12,307 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;@1a222a9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 12:04:12,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-21 12:04:12,626 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)] === [2024-11-21 12:04:12,626 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:12,626 INFO L139 ounterexampleChecker]: Examining path program with hash 2107283182, occurence #1 [2024-11-21 12:04:12,626 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:04:12,626 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:12,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:12,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1619166640, now seen corresponding path program 1 times [2024-11-21 12:04:12,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:12,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613683100] [2024-11-21 12:04:12,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:04:12,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:12,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:12,672 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) [2024-11-21 12:04:12,674 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 [2024-11-21 12:04:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:04:12,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-21 12:04:12,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:12,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 12:04:12,929 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 12:04:12,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:12,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613683100] [2024-11-21 12:04:12,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613683100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:04:12,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:04:12,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 12:04:12,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759337187] [2024-11-21 12:04:12,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:04:12,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 12:04:12,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:12,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 12:04:12,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 12:04:12,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:12,961 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:12,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 12:04:12,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:13,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-21 12:04:13,297 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 [2024-11-21 12:04:13,298 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)] === [2024-11-21 12:04:13,298 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:13,298 INFO L139 ounterexampleChecker]: Examining path program with hash -1872989390, occurence #1 [2024-11-21 12:04:13,298 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:04:13,298 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:13,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:13,299 INFO L85 PathProgramCache]: Analyzing trace with hash -731847460, now seen corresponding path program 1 times [2024-11-21 12:04:13,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:13,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [881239517] [2024-11-21 12:04:13,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:04:13,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:13,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:13,302 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) [2024-11-21 12:04:13,304 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 [2024-11-21 12:04:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:04:13,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 12:04:13,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 12:04:13,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 12:04:13,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:13,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881239517] [2024-11-21 12:04:13,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881239517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:04:13,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:04:13,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 12:04:13,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002048473] [2024-11-21 12:04:13,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:04:13,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 12:04:13,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:13,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 12:04:13,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 12:04:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:13,584 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:13,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 12:04:13,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:13,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:13,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:13,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:13,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-21 12:04:13,947 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 [2024-11-21 12:04:13,948 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)] === [2024-11-21 12:04:13,948 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:13,948 INFO L139 ounterexampleChecker]: Examining path program with hash 119077196, occurence #1 [2024-11-21 12:04:13,948 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:04:13,948 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:13,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:13,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1128689993, now seen corresponding path program 1 times [2024-11-21 12:04:13,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:13,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862668495] [2024-11-21 12:04:13,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:04:13,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:13,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:13,953 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) [2024-11-21 12:04:13,953 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 [2024-11-21 12:04:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:04:14,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 12:04:14,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 12:04:14,401 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 12:04:14,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:14,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862668495] [2024-11-21 12:04:14,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862668495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:04:14,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:04:14,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 12:04:14,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247531568] [2024-11-21 12:04:14,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:04:14,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 12:04:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:14,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 12:04:14,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-21 12:04:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:14,403 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:14,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 12:04:14,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:14,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:14,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:14,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:14,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:14,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-21 12:04:15,052 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 [2024-11-21 12:04:15,052 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)] === [2024-11-21 12:04:15,052 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:15,052 INFO L139 ounterexampleChecker]: Examining path program with hash -379232327, occurence #1 [2024-11-21 12:04:15,052 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:04:15,052 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:15,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:15,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1505452077, now seen corresponding path program 1 times [2024-11-21 12:04:15,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:15,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472064661] [2024-11-21 12:04:15,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:04:15,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:15,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:15,056 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) [2024-11-21 12:04:15,058 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 [2024-11-21 12:04:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:04:15,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 12:04:15,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 12:04:15,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 12:04:15,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:15,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472064661] [2024-11-21 12:04:15,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472064661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:04:15,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:04:15,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 12:04:15,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120136157] [2024-11-21 12:04:15,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:04:15,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 12:04:15,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:15,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 12:04:15,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 12:04:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:15,336 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:15,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 12:04:15,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:15,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:15,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:15,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:15,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:15,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:15,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:15,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:15,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 12:04:15,728 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 [2024-11-21 12:04:15,729 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)] === [2024-11-21 12:04:15,729 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:15,729 INFO L139 ounterexampleChecker]: Examining path program with hash 1094318771, occurence #1 [2024-11-21 12:04:15,729 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:04:15,729 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:15,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:15,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1939169877, now seen corresponding path program 1 times [2024-11-21 12:04:15,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:15,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348167535] [2024-11-21 12:04:15,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:04:15,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:15,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:15,732 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) [2024-11-21 12:04:15,735 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 [2024-11-21 12:04:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:04:15,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 12:04:15,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 12:04:16,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 12:04:16,008 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:16,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348167535] [2024-11-21 12:04:16,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348167535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:04:16,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:04:16,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 12:04:16,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175182019] [2024-11-21 12:04:16,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:04:16,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 12:04:16,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:16,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 12:04:16,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 12:04:16,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:16,009 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:16,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-21 12:04:16,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:16,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:16,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:16,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:16,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:16,245 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 [2024-11-21 12:04:16,427 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 [2024-11-21 12:04:16,427 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)] === [2024-11-21 12:04:16,428 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:16,428 INFO L139 ounterexampleChecker]: Examining path program with hash -1572224228, occurence #1 [2024-11-21 12:04:16,428 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:04:16,428 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:16,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1123802118, now seen corresponding path program 1 times [2024-11-21 12:04:16,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:16,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469947946] [2024-11-21 12:04:16,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:04:16,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:16,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:16,430 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) [2024-11-21 12:04:16,431 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 [2024-11-21 12:04:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:04:16,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 12:04:16,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 12:04:16,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 12:04:16,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:16,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469947946] [2024-11-21 12:04:16,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469947946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:04:16,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:04:16,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 12:04:16,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514011217] [2024-11-21 12:04:16,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:04:16,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 12:04:16,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:16,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 12:04:16,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 12:04:16,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:16,669 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:16,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-21 12:04:16,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:16,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:16,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:16,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:16,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:16,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:16,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-21 12:04:17,063 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 [2024-11-21 12:04:17,063 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)] === [2024-11-21 12:04:17,064 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:17,064 INFO L139 ounterexampleChecker]: Examining path program with hash -256634430, occurence #1 [2024-11-21 12:04:17,064 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 12:04:17,064 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:17,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:17,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1517295134, now seen corresponding path program 1 times [2024-11-21 12:04:17,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:17,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [738450104] [2024-11-21 12:04:17,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:04:17,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:17,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:17,068 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) [2024-11-21 12:04:17,070 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 [2024-11-21 12:04:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:04:17,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 12:04:17,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 12:04:17,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 12:04:17,284 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:17,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738450104] [2024-11-21 12:04:17,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738450104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 12:04:17,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 12:04:17,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 12:04:17,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971252725] [2024-11-21 12:04:17,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 12:04:17,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 12:04:17,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:17,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 12:04:17,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 12:04:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:17,286 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:17,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 12:04:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,457 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 [2024-11-21 12:04:17,639 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 [2024-11-21 12:04:17,639 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)] === [2024-11-21 12:04:17,639 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:17,639 INFO L139 ounterexampleChecker]: Examining path program with hash -256634430, occurence #2 [2024-11-21 12:04:17,639 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 12:04:17,639 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-21 12:04:17,640 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:17,640 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-21 12:04:17,640 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:17,640 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-21 12:04:17,657 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:17,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-21 12:04:17,658 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:17,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-21 12:04:17,658 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:17,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-21 12:04:17,658 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:17,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-21 12:04:17,658 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:17,658 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-21 12:04:17,659 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:17,659 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-11-21 12:04:17,659 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:17,659 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-21 12:04:17,659 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:17,659 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-11-21 12:04:17,659 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:17,659 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-21 12:04:17,659 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:17,659 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 12:04:17,660 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:17,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:17,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2011901861, now seen corresponding path program 1 times [2024-11-21 12:04:17,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:17,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115470144] [2024-11-21 12:04:17,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 12:04:17,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:17,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:17,664 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) [2024-11-21 12:04:17,666 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 [2024-11-21 12:04:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 12:04:17,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-21 12:04:17,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-21 12:04:17,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 12:04:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-21 12:04:17,939 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115470144] [2024-11-21 12:04:17,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115470144] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 12:04:17,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 12:04:17,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-21 12:04:17,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065680449] [2024-11-21 12:04:17,940 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-21 12:04:17,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-21 12:04:17,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:17,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-21 12:04:17,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 12:04:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:17,943 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:17,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2024-11-21 12:04:17,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:17,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:17,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:17,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:17,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:18,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 12:04:18,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-21 12:04:18,438 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 [2024-11-21 12:04:18,439 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)] === [2024-11-21 12:04:18,439 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:18,439 INFO L139 ounterexampleChecker]: Examining path program with hash -256634430, occurence #3 [2024-11-21 12:04:18,439 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 12:04:18,439 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-21 12:04:18,439 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:18,439 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-21 12:04:18,439 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:18,439 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-21 12:04:18,439 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:18,439 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-21 12:04:18,439 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:18,439 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-21 12:04:18,439 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:18,439 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-21 12:04:18,439 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:18,439 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-21 12:04:18,439 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:18,440 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-21 12:04:18,440 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:18,440 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2024-11-21 12:04:18,440 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:18,440 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-21 12:04:18,440 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:18,440 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 46 [2024-11-21 12:04:18,440 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:18,440 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-21 12:04:18,440 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:18,440 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 12:04:18,440 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:18,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:18,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2091274078, now seen corresponding path program 2 times [2024-11-21 12:04:18,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:18,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805360468] [2024-11-21 12:04:18,441 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 12:04:18,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:18,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:18,443 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) [2024-11-21 12:04:18,444 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 [2024-11-21 12:04:18,700 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 12:04:18,700 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 12:04:18,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-21 12:04:18,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-21 12:04:18,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 12:04:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-21 12:04:18,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 12:04:18,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805360468] [2024-11-21 12:04:18,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805360468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 12:04:18,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 12:04:18,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-21 12:04:18,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164981125] [2024-11-21 12:04:18,912 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-21 12:04:18,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 12:04:18,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 12:04:18,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 12:04:18,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-21 12:04:18,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:18,913 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 12:04:18,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2024-11-21 12:04:18,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:18,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:18,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:18,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:18,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:18,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:18,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:18,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 12:04:18,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:19,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 12:04:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 12:04:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 12:04:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 12:04:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 12:04:19,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 12:04:19,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-21 12:04:19,548 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 [2024-11-21 12:04:19,548 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)] === [2024-11-21 12:04:19,548 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 12:04:19,548 INFO L139 ounterexampleChecker]: Examining path program with hash -256634430, occurence #4 [2024-11-21 12:04:19,548 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 12:04:19,548 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-21 12:04:19,548 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:19,548 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-21 12:04:19,548 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:19,548 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-21 12:04:19,549 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-21 12:04:19,549 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-21 12:04:19,549 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-11-21 12:04:19,549 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-21 12:04:19,549 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-21 12:04:19,549 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2024-11-21 12:04:19,549 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-21 12:04:19,549 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-11-21 12:04:19,549 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 12:04:19,549 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-21 12:04:19,549 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 12:04:19,549 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 12:04:19,549 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 12:04:19,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 12:04:19,550 INFO L85 PathProgramCache]: Analyzing trace with hash 848072165, now seen corresponding path program 3 times [2024-11-21 12:04:19,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 12:04:19,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118402201] [2024-11-21 12:04:19,550 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-21 12:04:19,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 12:04:19,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 12:04:19,554 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) [2024-11-21 12:04:19,556 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 [2024-11-21 12:04:19,835 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-21 12:04:19,835 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 12:04:19,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-21 12:04:19,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 12:04:23,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 12:04:23,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 363 treesize of output 523 [2024-11-21 12:04:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 12:04:26,215 INFO L312 TraceCheckSpWp]: Computing backward predicates... Killed by 15